Inhibitors of RIPK2 and uses thereof

Abstract

The present disclosure relates to RIPK2 inhibitors represented by structural formula (I') or (X"): The disclosure further relates to pharmaceutical composition comprising the RIPK2 inhibitors and methods of treatment of conditions such as inflammatory diseases, autoimmune diseases, granulomatous disease, neurodegenerative disease and cancer.

Description

INHIBITORS OF RIPK2 AND USES THEREOF RELATED APPLICATIONS

[0001] This application claims the benefit of priority to U.S. Provisional Application Nos. 63 / 521,538 filed June 16, 2023, 63 / 521,550 filed June 16, 2023, 63 / 616,937 filed January 2, 2024, 63 / 616,982 filed January 2, 2024, and 63 / 616,997 filed January 2, 2024. The entire teachings of each of the above applications are incorporated herein by reference. BACKGROUND OF THE INVENTION

[0002] Autoinflammatory disorders are diseases characterized by systemic and organ- specific inflammation due to abnormalities in the innate immune system. These abnormalities are associated with numerous inflammatory disorders such as inflammatory bowel disease (including Crohn’s disease and ulcerative colitis), sarcoidosis, inflammatory arthritis, peritonitis, multiple sclerosis, rheumatoid arthritis, and Wegener’s granulomatosis. These disorders affect millions of people.

[0003] NOD1 and NOD2 (nucleotide-binding oligomerization domains 1 and 2) are members of the NOD-like receptor (NLR) family, which represent important components of the mammalian innate immune system, serving as intracellular receptors for peptidoglycan (PGN), a component of bacterial cell walls. NOD1 and NOD2 detect the presence of intracellular bacteria by binding to PGN fragments. Heredity polymorphisms in the genes encoding NOD1 and NOD2 have been associated with inflammatory disorders. Once activated, NOD signaling leads to activation of NF-kB and MAP kinases, resulting in the transcription of pro-inflammatory kinases and the induction of autophagy.

[0004] NOD1 and NOD2 require RIPK2 as a common scaffolding (adaptor) protein to propagate downstream signals that lead to aberrant proinflammatory innate immune activation. In particular, RIPK2 is critical for NF-kB activation and subsequent cytokine production. Inhibition of RIPK2 resolves abnormal inflammation states such as intestinal inflammation. Accordingly, inhibitors of RIPK2 have potential to act as therapeutic agents, for example, to reduce or resolve inflammation for inflammatory disorders such as inflammatory bowel disease (including Crohn’s disease and ulcerative colitis), sarcoidosis,inflammatory arthritis, peritonitis, multiple sclerosis, rheumatoid arthritis, and Wegener’s granulomatosis.

[0005] In the context of malignant transformation, knockdown of RIPK2 downregulated RNA expression of E-cadherin and vimentin, proteins involved in epithelial-to- mesenchymal transition (EMT) and the promotion of the metastatic phenotype indicating that RIPK2 is involved in cell migration and metastasis.

[0006] Accordingly inhibitors of RIPK2 activity which can block RIPK2-dependent pro- inflammatory signaling and thereby provide a therapeutic benefit in auto-inflammatory diseases and other disorders characterized by increased and / or dysregulated RIPK2 activity are needed.

[0007] A description of example embodiments of the invention follows. SUMMARY OF THE INVENTION

[0008] In a first embodiment, the present invention relates a compound represented by structural formula (I’) or a pharmaceutically acceptable salt thereof:wherein: G is selected from the following moieties oriented in either direction unless indicated otherwise:, where * indicates the point of attachment to X;U1, U2, U3, and U4is each independently CH or N, provided that at least one and no more than two of U1, U2, U3, and U4are N; A1is CH, C(C1-3alkyl), or N; A2and A3is each independently CH or N; X is a moiety represented by one of the following structural formulas:A4is N or CR8; A5, A6, and Q is each independently CH or N; Y is -NHC(O)-*, -C(O)NH-*, or -C(O)(C1-3alkylene)-*, where * indicates the point of attachment to R3; R1, R1a, and R2is each independently selected from H, halogen, C1-6alkyl, C1-6haloalkyl, and C1-6alkoxy; R3is selected from C1-6alkyl, C1-6haloalkyl, C1-6alkoxy, C3-6cycloalkyl, 4- to 10-membered heterocyclyl, 5- to 12-membered heteroaryl, or NR9R10; R4is selected from halogen, C3-6 cycloalkyl, C1-6alkoxy, 5- to 12-membered heteroaryl, C(=O)NR11R12,S(O)2R13, and Z2R13a; Q1is N or CR5; R5and R6is each independently selected from H, halogen, and C1-6alkyl; RGis selected from H, C1-6alkyl, and C1-6haloalkyl; Z1is selected from O, NH, N(C1-6alkyl), NH(C1-3alkylene), (C1-3alkylene)NH, C(O), C(O)NH, NHC(O), NHS(O)2, S(O)2NH, C1-3alkylene, and a bond; Z2is selected from C1-3alkylene, NH, and bond; R7is selected from C1-6alkyl, C3-6 cycloalkyl, 4- to 10-membered heterocyclyl, 5-12 membered heteroaryl, (C1-6alkylene)NR17R18; R8is selected from H, halogen, C1-6haloalkyl, 4- to 10-membered heterocyclyl, and C1-6alkoxy; R9and R10is each independently C1-6alkyl; R11and R12is each independently H or C1-6alkyl, orR11and R12taken together with the nitrogen atom to which they are attached form 4- to 10- membered heterocyclyl; and R13and R13ais each independently 4- to 10-membered heterocyclyl or NR14R15; R14and R15is each independently C1-6alkyl; and R17and R18is each independently C1-6alkyl or H; wherein each C1-6alkyl, C1-3alkyl, C1-3alkylene, C1-6alkyleneC,3-6cycloalkyl, C1-6alkoxy, 5-12 membered heteroaryl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1- 6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10- membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl,C3-6cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl,C3-6cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a, R14b, R15a, R18a, R18b, R18c, R20, R20a, R24, R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21,R21b,R22,R22b,R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituentsindependently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl. In a second embodiment, the present disclosure relates to a compound represented by structural formula (X”) or a pharmaceutically acceptable salt thereof:wherein: X’is a moiety represented by one of the following structural formulas:, wherein # indicates the point of attachment to the pyridyl group; A1*N or CH; A2*CH or N; R1*is selected from C1-6alkyl, H, halogen, C1-6haloalkyl a¸nd C1-6alkoxy; R2*is selected from halogen, C1-6alkyl, H, C1-6haloalkyl a¸nd C1-6alkoxy; R3*is C3-6 cycloalkyl or C1-6alkyl; R4*is a halogen; and R5*is 4- to 10-membered heterocyclyl; wherein each C1-6alkyl, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a*, SR15a*, NR16a*R17a*, S(O)R18a*, S(O)2R18b*, NR19*S(=O)R20*, C(=O)OR20a*, C(=O)NR21*R22*, NR23*C(=O)R24*, C(=S)NR25*R26*, C(=O)R27*, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1- 6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10- membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b*, NR16b*R17b*, C(=O)NR21b*R22b*, NR23b*C(=O)R24b*, C(=O)R27b*, C(=O)OR27c*, S(O)R18c*, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a*,R14b*,R15a*,R18a*,R18b*, R18c*, R20*,R20a*,R24*,R24b*, R27*, R27b*, and R27c*are each independently hydrogen or C1-6alkyl; R16a*, R17a*, R16b*, and R17b*are each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19*, R23*,and R23b*are each independently C1-6alkyl or halo(C1-6)alkyl; R21*, R21b*, R22*, R22b*, R25*and R26*are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl.

[0009] In a third embodiment, the present invention relates to a pharmaceutical composition comprising a compound or pharmaceutically acceptable salt thereof described herein with respect to the first and second embodiment and various aspects thereof (e.g., a compound of formula (I’) or (X”) or a pharmaceutically acceptable salt thereof), and a pharmaceutically acceptable excipient.

[0010] In a fourth embodiment, the present invention relates to a method of treating a disease or disorder, comprising administering to a subject in need thereof a compound or a pharmaceutically acceptable salt of the compound described herein with respect to the first and second embodiments and various aspects thereof (e.g., a compound of formula (I’) or (X”) or a pharmaceutically acceptable salt thereof) or a pharmaceutical composition described herein with respect to the second embodiment and various aspects thereof,wherein the disease or disorder is selected from inflammatory diseases, autoimmune diseases, granulomatous diseases, cancer and neurodegenerative diseases.

[0011] In a fifth embodiment, the present relates to a method of treating a RIP2 kinase- mediated disease or disorder, comprising administering to a subject in need thereof a compound described herein with respect to the first and second embodiments and various aspects thereof (e.g., a compound of formula (I’) or (X”) or a pharmaceutically acceptable salt thereof) or a pharmaceutical composition described herein with respect to the second embodiment and various aspects thereof. In one aspect, the RIP2 kinase-mediated disease or disorder is a disease or disorder wherein inhibition of RIP2 kinase would provide benefit. In a particular aspect, the disease or disorder is selected from an inflammatory disease, autoimmune disease, granulomatous disease, cancer, and neurodegenerative disease.

[0012] In a sixth embodiment, the present invention relates to the use of a compound described herein with respect to the first and second embodiments and various aspects thereof (e.g., a compound of formula (I’) or (X”) or a pharmaceutically acceptable salt thereof) in the manufacture of a medicament for use in treating RIP2 kinase-mediated diseases or disorders (e.g., inflammatory diseases, autoimmune diseases, granulomatous diseases, cancer or neurodegenerative diseases).

[0013] In a seventh embodiment, the present invention relates to a compound described herein with respect to the first and second embodiments and various aspects thereof (e.g., a compound of formula (I’) or (X”) or a pharmaceutically acceptable salt thereof) for use in treating RIP2 kinase-mediated diseases and disorders (e.g., inflammatory diseases, autoimmune diseases, granulomatous diseases, cancer or neurodegenerative diseases). DETAILED DESCRIPTION OF THE INVENTION

[0014] RIP Kinases

[0015] Protein kinases constitute a large family of structurally related enzymes that are responsible for the control of a wide variety of signal transduction processes in the cell. They have been shown to be key regulators in most cellular functions including proliferation, cell metabolism, cell survival, apoptosis, DNA damage repair, and cell motility. Uncontrolled signaling due to defective control of protein phosphorylation has been implicated in a number of diseases, including, for example, cancer, inflammation, allergies, immune diseases, CNS disorders, and angiogenesis.

[0016] Amongst the families of protein kinases, one particular example is the Receptor- Interacting Serine / Threonine Kinases including RIPK2. RIPK2 is composed of an N- terminal kinase domain and a C-terminal caspase-recruitment domain (CARD) linked via an intermediate (IM) region. The CARD domain of RIP2 kinase mediates interaction with other CARD-containing proteins, such as NOD1 and NOD2. NOD1 and NOD2 are cytoplasmic receptors which are activated by specific bacterial peptidoglycan motifs and play a key role in innate immune surveillance. Upon intracellular bacterial exposure, NOD1 or NOD2 binds to RIPK2 to coordinate NF-kB (nuclear factor k B)-mediated cytokine responses. Once associated with NOD1 / 2, RIPK2 undergoes autophosphorylation on Tyr 474 (Y474), and acts as a molecular scaffold to bring together other kinases (TAK1, IKKb involved in NF- kB, and MAPK activation).

[0017] Both NOD1 / 2 and RIPK2 are NF-kB regulated genes, and as such, their activation causes a positive feedback loop in which activation of NOD1 / 2:RIPK2 stimulates further activation and further inflammation. Additionally, NOD1 / 2 and RIPK2 expression are stimulated by a variety of mediators of inflammation, including TNF (Tumor Necrosis Factor) and IFN (Interferon). In addition to NF-kB pathway activation, the NOD1 / 2:RIPK2 complex stimulates autophagy, bactericidal activity, MHC Class II presentation and MAPK (Mitogen-Activated Protein Kinase) activation. Overall, this pathway modulates the innate immune system to help tailor the adaptive immune response to eradicate the offending pathogen.

[0018] Dysregulation of RIPK2-dependent signaling has been linked to autoinflammatory diseases. Patients with loss-of-function NOD2 alleles are prone to the development of Crohn’s disease (CD), an inflammatory disorder of the gastrointestinal tract. NOD2 / RIPK2 pathway is involved in the pathogenesis of inflammatory bowel disease (IBD). Both NOD2 and RIPK2 are upregulated in colon biopsies from CD patients as well as ulcerative colitis (UC) pediatric population. A selective RIPK2 inhibitor has been shown to block the spontaneous pro-inflammatory cytokines secretion from UC / CD patient’s biopsies. This result underlines that RIPK2 activation in the UC / CD patient’s mucosa leads to the pro-inflammatory status of these biopsies.

[0019] Rheumatoid arthritis (RA) is a disease where NOD2 / RIPK2 plays a role. NOD2 / RIPK2 pathway has been shown to be upregulated in immune cells of RA patients, suggesting that RIPK2 inhibition could be beneficial in this population. Gain-of-functionNOD2 mutations have been genetically linked to other inflammatory diseases, such as Blau Syndrome / Early Onset Sarcoidosis (EOS), a pediatric granulomateous disease characterized by uveitis, dermatitis, and arthritis. Broad genotyping of young patients suffering from allergic rhinitis and atopic dermatitis highlighted common NOD2 polymorphism with Crohn’s as probable leading cause of the excessive immune response against skin tissues observed. Mutations in NOD1 have been associated with asthma and early-onset and extra- intestinal inflammatory bowel disease. Genetic and functional studies have also suggested a role for RIP2-dependent signaling in a variety of other granulomateous disorders, such as sarcoidosis.

[0020] Metabolic syndrome, a pathology closely related to obesity and overweight, results from a chronic inflammation and is characterized by hypertension, hyperglycemia and lipolysis dysfunction. Activation of the immune system through NOD1 pathway was observed in patients suffering from metabolic syndrome. A recent functional study highlighting the impact of RIPK2 inhibitors on lipolysis suggested a role for RIP2- dependent signaling in dysglycemia and lipolysis.

[0021] In cardiac hypertrophy, a complex and multifactorial pathology, inflammation was shown as important hallmark of the disease, notably through the activation of NF-kB signaling. Knockout studies of RIPK2 on hypertrophic heart mice models suggested a role of RIPK2 in the regulation of the inflammation and subsequent tissue fibrosis and hypertrophy.

[0022] Beyond immuno-inflammatory diseases, RIPK2 modulation has also been described in several cancers. In triple negative breast cancer (TNBC), RIPK2 high expression has been associated to worse progression-free survival as well as a worse overall survival. It has been shown that RIPK2 knockdown increases docetaxel sensitivity and decreases tumor and lung metastasis. Another study focusing on a new cancer gene cassette on breast cancer patients’ chromosome 8 discovered RIPK2 coamplification with other tested oncogenes (such as MYC). TNBC biopsies performed in order to find druggable kinases beyond HER2 demonstrated that RIPK2 was hyper-phosphorylated in basal-like and luminal B breast cancer biopsies suggesting that this pathway could be activated in these type of TNBC. More recently, phospho-RIPK2 levels as well as NF-kB activity were shown elevated in biopsies of Inflammatory Breast Cancer. 34 head and neck squamous cell carcinoma cell lines showed that RIPK2 knockdown led to cell death, indicating centralroles of the protein for cell survival. It has been proposed that RIPK2 promotes glioma cell growth by regulating TRAF3 and activating the NF-kB pathway and p38 signaling.

[0023] A new role for RIPK2 in osteosarcoma invasion was demonstrated when Gefitinib, via RIPK2 inhibition, prevented progression of pulmonary metastasis. Further, non-canonical NF-kB plays a pivotal role in non-Hodgkin’s lymphoma. Finally, using a three-dimensional lymphatic endothelial cell tube formation, RIPK2 was identified as a kinase involved in lymphatic vessel remodeling, a key factor for the metastatic spread of cancer. Taken together these data strongly support the development of RIPK2 inhibitors in oncology.

[0024] RIPK2 and RIP2 kinase are used interchangeably herein and refer to Receptor- interacting protein kinase 2.

[0025] DEFINITIONS

[0026] Definitions of specific functional groups and chemical terms are described in more detail below. The chemical elements are identified in accordance with the Periodic Table of the Elements, CAS version, Handbook of Chemistry and Physics, 75thEd., inside cover, and specific functional groups are generally defined as described therein. Additionally, general principles of organic chemistry, as well as specific functional moieties and reactivity, are described in Organic Chemistry, Thomas Sorrell, University Science Books, Sausalito, 1999; Smith and March, March's Advanced Organic Chemistry, 5thEdition, John Wiley & Sons, Inc., New York, 2001; Larock, Comprehensive Organic Transformations, VCH Publishers, Inc., New York, 1989; and Carruthers, Some Modern Methods of Organic Synthesis, 3rdEdition, Cambridge University Press, Cambridge, 1987.

[0027] Compounds described herein can comprise one or more asymmetric centers, and thus can exist in various stereoisomeric forms, e.g., enantiomers and / or diastereomers. For example, the compounds described herein can be in the form of an individual enantiomer, diastereomer or geometric isomer, or can be in the form of a mixture of stereoisomers, including racemic mixtures and mixtures enriched in one or more stereoisomer. Isomers can be isolated from mixtures by methods known to those skilled in the art, including chiral high pressure liquid chromatography (HPLC) and the formation and crystallization of chiral salts; or preferred isomers can be prepared by asymmetric syntheses. See, for example, Jacques et al., Enantiomers, Racemates and Resolutions, Wiley Interscience, New York, 1981; Wilen et al., Tetrahedron 33:2725 (1977); Eliel, E.L. Stereochemistry of Carbon Compounds,McGraw-Hill, NY, 1962; and Wilen, S.H., Tables of Resolving Agents and Optical Resolutions p. 268, E.L. Eliel, Ed., Univ. of Notre Dame Press, Notre Dame, IN 1972. The invention additionally encompasses compounds as individual isomers substantially free of other isomers, and alternatively, as mixtures of various isomers.

[0028] In a formula, is a single bond where the stereochemistry of the moieties immediately attached thereto is not specified, --- is absent or a single bond, and or is a single or double bond. An asterisk (*) next to an atom indicates that the atom is a stereocenter of unknown absolute configuration. For example, in a pair of enantiomers each can be depicted by a chemical structure with an asterisk (*) next to the stereocenter, which would indicate that the absolute configuration for the stereocenter of a given enantiomer is not defined.

[0029] Unless otherwise stated, structures depicted herein are also meant to include all isomeric (e.g., enantiomeric, diastereomeric, and geometric (or conformational)) forms of the structure; for example, the R and S configurations for each stereocenter. Therefore, single stereochemical isomers as well as enantiomeric, diastereomeric, and geometric (or conformational) mixtures of the present compounds are within the scope of the invention. Unless otherwise stated, all tautomeric forms of the compounds of the invention are within the scope of the invention.

[0030] Unless otherwise stated, structures depicted herein are also meant to include compounds that differ only in the presence of one or more isotopically enriched atoms. For example, compounds having the present structures except for the replacement of hydrogen by deuterium or tritium, replacement of19F with18F, or the replacement of12C with13C or14C are within the scope of the disclosure. Such compounds are useful, for example, as analytical tools or probes in biological assays.

[0031] When a range of values is listed, it is intended to encompass each value and sub- range within the range. For example, "C1-6alkyl" is intended to encompass C1, C2, C3, C4, C5, C6, C1-6, C1-5, C1-4, C1-3, C1-2, C2-6, C2-5, C2-4, C2-3, C3-6, C3-5, C3-4, C4-6, C4-5, and C5-6alkyl.

[0032] The term "aliphatic" refers to alkyl, alkenyl, alkynyl, and carbocyclic groups. Likewise, the term "heteroaliphatic" refers to heteroalkyl, heteroalkenyl, heteroalkynyl, and heterocyclic groups.

[0033] The term "alkyl" refers to a radical of a straight-chain or branched saturated hydrocarbon group having from 1 to 10 carbon atoms ("C1-10alkyl"). In some embodiments, an alkyl group has 1 to 9 carbon atoms ("C1-9alkyl"). In some embodiments, an alkyl group has 1 to 8 carbon atoms ("C1-8alkyl"). In some embodiments, an alkyl group has 1 to 7 carbon atoms ("C1-7alkyl"). In some embodiments, an alkyl group has 1 to 6 carbon atoms ("C1-6alkyl"). In some embodiments, an alkyl group has 1 to 5 carbon atoms ("C1-5alkyl"). In some embodiments, an alkyl group has 1 to 4 carbon atoms ("C1-4alkyl"). In some embodiments, an alkyl group has 1 to 3 carbon atoms ("C1-3alkyl"). In some embodiments, an alkyl group has 1 to 2 carbon atoms ("C1-2alkyl"). In some embodiments, an alkyl group has 1 carbon atom ("C1alkyl"). In some embodiments, an alkyl group has 2 to 6 carbon atoms ("C2-6alkyl"). Examples of C1-6alkyl groups include methyl (C1), ethyl (C2), propyl (C3) (e.g., n-propyl, isopropyl), butyl (C4) (e.g., n-butyl, tert-butyl, sec-butyl, iso-butyl), pentyl (C5) (e.g., n-pentyl, 3-pentanyl, amyl, neopentyl, 3- methyl-2-butanyl, tertiary amyl), and hexyl (C6) (e.g., n-hexyl). Additional examples of alkyl groups include n-heptyl (C7), n- octyl (C8), and the like. Unless otherwise specified, each instance of an alkyl group is independently unsubstituted (an "unsubstituted alkyl") or substituted (a "substituted alkyl") with one or more substituents (e.g., halogen, such as F). In certain embodiments, the alkyl group is an unsubstituted C1-10 alkyl (such as unsubstituted C1-6alkyl, e.g., -CH3 (Me), unsubstituted ethyl (Et), unsubstituted propyl (Pr, e.g., unsubstituted n-propyl (n-Pr), unsubstituted isopropyl (i-Pr)), unsubstituted butyl (Bu, e.g., unsubstituted n-butyl (n-Bu), unsubstituted tert-butyl (tert-Bu or t-Bu), unsubstituted sec-butyl (sec-Bu), unsubstituted isobutyl (i-Bu)). In certain embodiments, the alkyl group is a substituted C1-10alkyl (such as substituted C1-6alkyl, e.g., -CF3, Bn).

[0034] The term "haloalkyl" refers to a substituted alkyl group, wherein one or more of the hydrogen atoms are independently replaced by a halogen, e.g., fluoro, bromo, chloro, or iodo. In some embodiments, the haloalkyl moiety has 1 to 8 carbon atoms ("C1-8 haloalkyl"). In some embodiments, the haloalkyl moiety has 1 to 6 carbon atoms ("C1-6haloalkyl"). In some embodiments, the haloalkyl moiety has 1 to 4 carbon atoms ("C1-4haloalkyl"). In some embodiments, the haloalkyl moiety has 1 to 3 carbon atoms ("C1-3haloalkyl"). In some embodiments, the haloalkyl moiety has 1 to 2 carbon atoms ("C1-2haloalkyl"). Examples of haloalkyl groups include -CHF2, -CH2F, -CF3, -CH2CF3, -CF2CF3, -CF2CF2CF3, -CCl3, - CFCl2, -CF2Cl, and the like.

[0035] The term "deuteroalkyl" refers to an alkyl group, wherein one or more of the hydrogen atoms are independently replaced by deuterium. In some embodiments, the deuteroalkyl moiety has 1 to 8 carbon atoms ("C1-8 deuteroalkyl"). In some embodiments, the deuteroalkyl moiety has 1 to 6 carbon atoms ("C1-6deuteroalkyl”). In some embodiments, the deuteroalkyl moiety has 1 to 4 carbon atoms ("C1-4 deuteroalkyl "). In some embodiments, the deuteroalkyl moiety has 1 to 3 carbon atoms ("C1-3deuteroalkyl "). In some embodiments, the deuteroalkyl moiety has 1 to 2 carbon atoms ("C1-2deuteroalkyl"). In some embodiments, the deuteroalkyl moiety is C1, C2, C3, C4, C5, or C6 deuteroalkyl. A deuteroalkyl moiety having n carbon atoms can have from 1 to 2n+1 deuterium atoms. Examples of deuteroalkyl groups include -CHD2, -CH2D, -CD3, -CH2CD3, -CD2CD3, -CD2CD2CD3, -CH(CD3)2, -CD(CD3)2, -C(CD3)3, and the like.

[0036]

[0037] The term "hydroxyalkyl" is a substituted alkyl group, wherein one or more of the hydrogen atoms are independently replaced by a hydroxyl. In some embodiments, the hydroxyalkyl moiety has 1 to 8 carbon atoms ("C1-8 hydroxyalkyl"). In some embodiments, the hydroxyalkyl moiety has 1 to 6 carbon atoms ("C1-6hydroxyalkyl"). In some embodiments, the hydroxyalkyl moiety has 1 to 4 carbon atoms ("C1-4 hydroxyalkyl"). In some embodiments, the hydroxyalkyl moiety has 1 to 3 carbon atoms ("C1-3hydroxyalkyl"). In some embodiments, the hydroxyalkyl moiety has 1 to 2 carbon atoms ("C1-2hydroxyalkyl").

[0038] The term "alkoxy" refers to an alkyl group, as defined herein, appended to the parent molecular moiety through an oxygen atom. In some embodiments, the alkoxy moiety has 1 to 8 carbon atoms ("C1-8 alkoxy"). In some embodiments, the alkoxy moiety has 1 to 6 carbon atoms ("C1-6alkoxy"). In some embodiments, the alkoxy moiety has 1 to 4 carbon atoms ("C1-4alkoxy"). In some embodiments, the alkoxy moiety has 1 to 3 carbon atoms ("C1-3alkoxy"). In some embodiments, the alkoxy moiety has 1 to 2 carbon atoms ("C1-2alkoxy"). Representative examples of alkoxy include, but are not limited to, methoxy, ethoxy, propoxy, 2-propoxy, butoxy and tert-butoxy.

[0039] The term "haloalkoxy" refers to a haloalkyl group, as defined herein, appended to the parent molecular moiety through an oxygen atom. In some embodiments, the alkoxy moiety has 1 to 8 carbon atoms ("C1-8haloalkoxy"). In some embodiments, the alkoxy moiety has 1 to 6 carbon atoms ("C1-6haloalkoxy"). In some embodiments, the alkoxymoiety has 1 to 4 carbon atoms ("C1-4haloalkoxy"). In some embodiments, the alkoxy moiety has 1 to 3 carbon atoms ("C1-3haloalkoxy"). In some embodiments, the alkoxy moiety has 1 to 2 carbon atoms ("C1-2haloalkoxy"). Representative examples of haloalkoxy include, but are not limited to, difluoromethoxy, trifluoromethoxy, and 2,2,2-trifluoroethoxy.

[0040] The term "alkoxyalkyl" is a substituted alkyl group, wherein one or more of the hydrogen atoms are independently replaced by an alkoxy group, as defined herein. In some embodiments, the alkoxyalkyl moiety has 1 to 8 carbon atoms ("C1-8alkoxyalkyl"). In some embodiments, the alkoxyalkyl moiety has 1 to 6 carbon atoms ("C1-6alkoxyalkyl"). In some embodiments, the alkoxyalkyl moiety has 1 to 4 carbon atoms ("C1-4 alkoxyalkyl"). In some embodiments, the alkoxyalkyl moiety has 1 to 3 carbon atoms ("C1-3alkoxyalkyl"). In some embodiments, the alkoxyalkyl moiety has 1 to 2 carbon atoms ("C1-2alkoxyalkyl").

[0041] The term "heteroalkyl" refers to an alkyl group, which further includes at least one heteroatom (e.g., 1, 2, 3, or 4 heteroatoms) selected from oxygen, nitrogen, or sulfur within (i.e., inserted between adjacent carbon atoms of) and / or placed at one or more terminal position(s) of the parent chain. In certain embodiments, a heteroalkyl group refers to a saturated group having from 1 to 20 carbon atoms and 1 or more heteroatoms within the parent chain ("heteroC1-20 alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to 18 carbon atoms and 1or more heteroatoms within the parent chain ("heteroC1-18alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to 16 carbon atoms and1or more heteroatoms within the parent chain ("heteroC1-16 alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to14 carbon atoms and 1 or more heteroatoms within the parent chain ("heteroC1-14alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to12 carbon atoms and 1 or more heteroatoms within the parent chain ("heteroC1-12alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1to 10 carbon atoms and 1or more heteroatoms within the parent chain ("heteroC1-10 alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to 8 carbon atoms and 1 or more heteroatoms within the parent chain ("heteroC1-8alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to 6 carbon atoms and 1 or more heteroatoms within the parent chain ("heteroC1-6alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to 4 carbon atoms and 1 or 2 heteroatoms within the parent chain ("heteroC1-4alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to 3 carbon atoms and 1heteroatom within the parent chain ("heteroC1-3alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 to 2 carbon atoms and 1 heteroatom within the parent chain ("heteroC1-2alkyl"). In some embodiments, a heteroalkyl group is a saturated group having 1 carbon atom and 1 heteroatom ("heteroC1alkyl"). In some embodiments, the heteroalkyl group defined herein is a partially unsaturated group having 1 or more heteroatoms within the parent chain and at least one unsaturated carbon, such as a carbonyl group. For example, a heteroalkyl group may comprise an amide or ester functionality in its parent chain such that one or more carbon atoms are unsaturated carbonyl groups. Unless otherwise specified, each instance of a heteroalkyl group is independently unsubstituted (an "unsubstituted heteroalkyl") or substituted (a "substituted heteroalkyl") with one or more substituents. In certain embodiments, the heteroalkyl group is an unsubstituted heteroC1-20 alkyl. In certain embodiments, the heteroalkyl group is an unsubstituted heteroC1-10 alkyl. In certain embodiments, the heteroalkyl group is a substituted heteroC1-20alkyl. In certain embodiments, the heteroalkyl group is an unsubstituted heteroC1-10 alkyl.

[0042] The term "alkenyl" refers to a radical of a straight-chain or branched hydrocarbon group having from 2 to 10 carbon atoms and one or more carbon-carbon double bonds (e.g., 1, 2, 3, or 4 double bonds). In some embodiments, an alkenyl group has 2 to 9 carbon atoms ("C2-9 alkenyl"). In some embodiments, an alkenyl group has 2 to 8 carbon atoms ("C2-8alkenyl"). In some embodiments, an alkenyl group has 2 to 7 carbon atoms ("C2-7 alkenyl"). In some embodiments, an alkenyl group has 2 to 6 carbon atoms ("C2-6 alkenyl"). In some embodiments, an alkenyl group has 2 to 5 carbon atoms ("C2-5alkenyl"). In some embodiments, an alkenyl group has 2 to 4 carbon atoms ("C2-4alkenyl"). In some embodiments, an alkenyl group has 2 to 3 carbon atoms ("C2-3 alkenyl"). In some embodiments, an alkenyl group has 2 carbon atoms ("C2alkenyl"). The one or more carbon- carbon double bonds can be internal (such as in 2- butenyl) or terminal (such as in 1- butenyl). Examples of C2-4alkenyl groups include ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), and the like. Examples of C2-6alkenyl groups include the aforementioned C2-4alkenyl groups as well as pentenyl (C5), pentadienyl (C5), hexenyl (C6), and the like. Additional examples of alkenyl include heptenyl (C7), octenyl (C8), octatrienyl (C8), and the like. Unless otherwise specified, each instance of an alkenyl group is independently unsubstituted (an "unsubstituted alkenyl") or substituted (a "substituted alkenyl") with one or more substituents. In certain embodiments, the alkenylgroup is an unsubstituted C2-10alkenyl. In certain embodiments, the alkenyl group is a substituted C2-10alkenyl. In an alkenyl group, a C=C double bond for which the stereochemistry is not specified (e.g., -CH=CHCH3or ) may be an (E)- or (Z)- double bond.

[0043] The term "heteroalkenyl" refers to an alkenyl group, which further includes at least one heteroatom (e.g., 1, 2, 3, or 4 heteroatoms) selected from oxygen, nitrogen, or sulfur within (i.e., inserted between adjacent carbon atoms of) and / or placed at one or more terminal position(s) of the parent chain. In certain embodiments, a heteroalkenyl group refers to a group having from 2 to 10 carbon atoms, at least one double bond, and 1 or more heteroatoms within the parent chain ("heteroC2-10alkenyl"). In some embodiments, a heteroalkenyl group has 2 to 9 carbon atoms at least one double bond, and 1 or more heteroatoms within the parent chain ("heteroC2-9alkenyl").

[0044] In some embodiments, a heteroalkenyl group has 2 to 8 carbon atoms, at least one double bond, and 1 or more heteroatoms within the parent chain ("heteroC2-8alkenyl"). In some embodiments, a heteroalkenyl group has 2 to 7 carbon atoms, at least one double bond, and 1 or more heteroatoms within the parent chain ("heteroC2-7 alkenyl"). In some embodiments, a heteroalkenyl group has 2 to 6 carbon atoms, at least one double bond, and 1 or more heteroatoms within the parent chain ("heteroC2-6alkenyl"). In some embodiments, a heteroalkenyl group has 2 to 5 carbon atoms, at least one double bond, and 1 or 2 heteroatoms within the parent chain ("heteroC2-5alkenyl"). In some embodiments, a heteroalkenyl group has 2 to 4 carbon atoms, at least one double bond, and 1 or 2 heteroatoms within the parent chain ("heteroC2-4alkenyl"). In some embodiments, a heteroalkenyl group has 2 to 3 carbon atoms, at least one double bond, and 1 heteroatom within the parent chain ("heteroC2-3alkenyl"). In some embodiments, a heteroalkenyl group has 2 to 6 carbon atoms, at least one double bond, and 1 or 2 heteroatoms within the parent chain ("heteroC2-6alkenyl"). Unless otherwise specified, each instance of a heteroalkenyl group is independently unsubstituted (an "unsubstituted heteroalkenyl") or substituted (a "substituted heteroalkenyl") with one or more substituents. In certain embodiments, the heteroalkenyl group is an unsubstituted heteroC2-10alkenyl. In certain embodiments, the heteroalkenyl group is a substituted heteroC2-10alkenyl.

[0045] The term "alkynyl" refers to a radical of a straight-chain or branched hydrocarbon group having from 2 to 10 carbon atoms and one or more carbon-carbon triplebonds (e.g., 1, 2, 3, or 4 triple bonds) ("C2-10alkynyl"). In some embodiments, an alkynyl group has 2 to 9 carbon atoms ("C2-9 alkynyl"). In some embodiments, an alkynyl group has 2 to 8 carbon atoms ("C2-8alkynyl"). In some embodiments, an alkynyl group has 2 to 7 carbon atoms ("C2-7alkynyl"). In some embodiments, an alkynyl group has 2 to 6 carbon atoms ("C2-6 alkynyl"). In some embodiments, an alkynyl group has 2 to 5 carbon atoms ("C2-5alkynyl"). In some embodiments, an alkynyl group has 2 to 4 carbon atoms ("C2-4alkynyl"). In some embodiments, an alkynyl group has 2 to 3 carbon atoms ("C2-3 alkynyl"). In some embodiments, an alkynyl group has 2 carbon atoms ("C2alkynyl"). The one or more carbon- carbon triple bonds can be internal (such as in 2-butynyl) or terminal (such as in 1-butynyl). Examples of C2-4alkynyl groups include, without limitation, ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), and the like. Examples of C2-6 alkynyl groups include the aforementioned C2-4alkynyl groups as well as pentynyl (C5), hexynyl (C6), and the like. Additional examples of alkynyl include heptynyl (C7), octynyl (C8), and the like. Unless otherwise specified, each instance of an alkynyl group is independently unsubstituted (an "unsubstituted alkynyl") or substituted (a "substituted alkynyl") with one or more substituents. In certain embodiments, the alkynyl group is an unsubstituted C2-10alkynyl. In certain embodiments, the alkynyl group is a substituted C2-10alkynyl.

[0046] The term "heteroalkynyl" refers to an alkynyl group, which further includes at least one heteroatom (e.g., 1, 2, 3, or 4 heteroatoms) selected from oxygen, nitrogen, or sulfur within (i.e., inserted between adjacent carbon atoms of) and / or placed at one or more terminal position(s) of the parent chain. In certain embodiments, a heteroalkynyl group refers to a group having from 2 to 10 carbon atoms, at least one triple bond, and 1 or more heteroatoms within the parent chain ("heteroC2-10alkynyl"). In some embodiments, a heteroalkynyl group has 2 to 9 carbon atoms, at least one triple bond, and 1or more heteroatoms within the parent chain ("heteroC2-9 alkynyl"). In some embodiments, a heteroalkynyl group has 2 to 8 carbon atoms, at least one triple bond, and 1or more heteroatoms within the parent chain ("heteroC2-8alkynyl"). In some embodiments, a heteroalkynyl group has 2 to 7 carbon atoms, at least one triple bond, and 1 or more heteroatoms within the parent chain ("heteroC2-7alkynyl"). In some embodiments, a heteroalkynyl group has 2 to 6 carbon atoms, at least one triple bond, and 1 or more heteroatoms within the parent chain ("heteroC2-6 alkynyl"). In some embodiments, aheteroalkynyl group has 2 to 5 carbon atoms, at least one triple bond, and 1 or 2 heteroatoms within the parent chain ("heteroC2-5alkynyl"). In some embodiments, a heteroalkynyl group has 2 to 4 carbon atoms, at least one triple bond, and l or 2 heteroatoms within the parent chain ("heteroC2-4alkynyl"). In some embodiments, a heteroalkynyl group has 2 to 3 carbon atoms, at least one triple bond, and 1heteroatom within the parent chain ("heteroC2-3 alkynyl"). In some embodiments, a heteroalkynyl group has 2 to 6 carbon atoms, at least one triple bond, and 1 or 2 heteroatoms within the parent chain ("heteroC2-6alkynyl"). Unless otherwise specified, each instance of a heteroalkynyl group is independently unsubstituted (an "unsubstituted heteroalkynyl") or substituted (a "substituted heteroalkynyl") with one or more substituents. In certain embodiments, the heteroalkynyl group is an unsubstituted heteroC2-10alkynyl. In certain embodiments, the heteroalkynyl group is a substituted heteroC2-10alkynyl.

[0047] The term "carbocyclyl" or "carbocyclic" refers to a radical of a non-aromatic cyclic hydrocarbon group having from 3 to 14 ring carbon atoms ("C3-14 carbocyclyl") and zero heteroatoms in the non-aromatic ring system. In some embodiments, a carbocyclyl group has 3 to 10 ring carbon atoms ("C3-10carbocyclyl"). In some embodiments, a carbocyclyl group has 3 to 8 ring carbon atoms ("C3-8 carbocyclyl"). In some embodiments, a carbocyclyl group has 3 to 7 ring carbon atoms ("C3-7 carbocyclyl"). In some embodiments, a carbocyclyl group has 3 to 6 ring carbon atoms ("C3-6carbocyclyl"). In some embodiments, a carbocyclyl group has 4 to 6 ring carbon atoms ("C4-6 carbocyclyl"). In some embodiments, a carbocyclyl group has 5 to 6 ring carbon atoms ("C5-6 carbocyclyl"). In some embodiments, a carbocyclyl group has 5 to 10 ring carbon atoms ("C5-10 carbocyclyl"). Exemplary C3-6 carbocyclyl groups include, without limitation, cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), and the like.

[0048] Exemplary C3-8 carbocyclyl groups include, without limitation, the aforementioned C3-8carbocyclyl groups as well as cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C8), cyclooctenyl (C8), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C8), and the like. Exemplary C3-10 carbocyclyl groups include, without limitation, the aforementioned C3-8carbocyclyl groups as well as cyclononyl (C9), cyclononenyl

[0049] (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), spiro[4.5]decanyl (C10), and the like. As the foregoing examples illustrate, in certain embodiments, the carbocyclyl group is either monocyclic ("monocyclic carbocyclyl") or polycyclic (e.g., containing a fused, bridged or spiro ring system such as a bicyclic system ("bicyclic carbocyclyl") or tricyclic system ("tricyclic carbocyclyl")) and can be saturated or can contain one or more carbon-carbon double or triple bonds. "Carbocyclyl" also includes ring systems wherein the carbocyclyl ring, as defined above, is fused with one or more aryl or heteroaryl groups wherein the point of attachment is on the carbocyclyl ring, and in such instances, the number of carbons continue to designate the number of carbons in the carbocyclic ring system. Unless otherwise specified, each instance of a carbocyclyl group is independently unsubstituted (an "unsubstituted carbocyclyl") or substituted (a "substituted carbocyclyl") with one or more substituents. In certain embodiments, the carbocyclyl group is an unsubstituted C3-14carbocyclyl. In certain embodiments, the carbocyclyl group is a substituted C3-14 carbocyclyl.

[0050] In some embodiments, "carbocyclyl" is a monocyclic, saturated carbocyclyl group having from 3 to 14 ring carbon atoms ("C3-14 cycloalkyl"). In some embodiments, a cycloalkyl group has 3 to 10 ring carbon atoms ("C3-10 cycloalkyl"). In some embodiments, a cycloalkyl group has 3 to 8 ring carbon atoms ("C3-8cycloalkyl"). In some embodiments, a cycloalkyl group has 3 to 6 ring carbon atoms ("C3-6 cycloalkyl"). In some embodiments, a cycloalkyl group has 4 to 6 ring carbon atoms ("C4-6 cycloalkyl"). In some embodiments, a cycloalkyl group has 5 to 6 ring carbon atoms ("C5-6cycloalkyl"). In some embodiments, a cycloalkyl group has 5 to 10 ring carbon atoms ("C5-10 cycloalkyl"). Examples of C5-6 cycloalkyl groups include cyclopentyl (C5) and cyclohexyl (C6). Examples of C3-6cycloalkyl groups include the aforementioned C5-6cycloalkyl groups as well as cyclopropyl (C3) and cyclobutyl (C4). Examples of C3-8 cycloalkyl groups include the aforementioned C3-6 cycloalkyl groups as well as cycloheptyl (C7) and cyclooctyl (C8). Unless otherwise specified, each instance of a cycloalkyl group is independently unsubstituted (an "unsubstituted cycloalkyl") or substituted (a "substituted cycloalkyl") with one or more substituents. In certain embodiments, the cycloalkyl group is an unsubstituted C3-14cycloalkyl. In certain embodiments, the cycloalkyl group is a substituted C3-14cycloalkyl.

[0051] The term "heterocyclyl" or "heterocyclic" refers to a radical of a 3- to 14- membered non-aromatic ring system having ring carbon atoms and 1 to 4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("3-14 membered heterocyclyl"). In heterocyclyl groups that contain one or more nitrogen atoms, the point of attachment can be a carbon or nitrogen atom, as valency permits. A heterocyclyl group can either be monocyclic ("monocyclic heterocyclyl") or polycyclic (e.g., a fused, bridged or spiro ring system such as a bicyclic system ("bicyclic heterocyclyl") or tricyclic system ("tricyclic heterocyclyl")), and can be saturated or can contain one or more carbon- carbon double or triple bonds. Heterocyclyl polycyclic ring systems can include one or more heteroatoms in one or both rings. "Heterocyclyl" also includes ring systems wherein the heterocyclyl ring, as defined above, is fused with one or more carbocyclyl groups wherein the point of attachment is either on the carbocyclyl or heterocyclyl ring, or ring systems wherein the heterocyclyl ring, as defined above, is fused with one or more aryl or heteroaryl groups, wherein the point of attachment is on the heterocyclyl ring, and in such instances, the number of ring members continue to designate the number of ring members in the heterocyclyl ring system. Unless otherwise specified, each instance of heterocyclyl is independently unsubstituted (an "unsubstituted heterocyclyl") or substituted (a "substituted heterocyclyl") with one or more substituents. In certain embodiments, the heterocyclyl group is an unsubstituted 3-14 membered heterocyclyl. In certain embodiments, the heterocyclyl group is a substituted 3-14 membered heterocyclyl.

[0052] In some embodiments, a heterocyclyl group is a 4-10 membered non-aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("4-10 membered heterocyclyl"). In some embodiments, a heterocyclyl group is a 4-8 membered non-aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("5-8 membered heterocyclyl"). In some embodiments, a heterocyclyl group is a 5-6 membered non-aromatic ring system having ring carbon atoms and 1- 4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("5-6 membered heterocyclyl"). In some embodiments, the 5-6 membered heterocyclyl has 1-3 ring heteroatoms selected from nitrogen, oxygen, and sulfur. In some embodiments, the 5-6 membered heterocyclyl has 1-2ring heteroatoms selected from nitrogen, oxygen, and sulfur. In some embodiments, the 5-6 membered heterocyclyl has 1 ring heteroatom selected from nitrogen, oxygen, and sulfur.

[0053] Exemplary 3-membered heterocyclyl groups containing 1 heteroatom include, without limitation, aziridinyl, oxiranyl, and thiiranyl. Exemplary 4-membered heterocyclyl groups containing 1 heteroatom include, without limitation, azetidinyl, oxetanyl, and thietanyl. Exemplary 5-membered heterocyclyl groups containing 1 heteroatom include, without limitation, tetrahydrofuranyl, dihydrofurany1, tetrahydrothiopheny1, dihydrothiopheny1, pyrrolidiny1, dihydropyrrolyl, and pyrrolyl-2,5-dione. Exemplary 5- membered heterocyclyl groups containing 2 heteroatoms include, without limitation, dioxolanyl, oxathiolanyl and dithiolanyl. Exemplary 5-membered heterocyclyl groups containing 3 heteroatoms include, without limitation, triazolinyl, oxadiazolinyl, and thiadiazolinyl. Exemplary 6-membered heterocyclyl groups containing 1 heteroatom include, without limitation, piperidinyl, tetrahydropyranyl, dihydropyridinyl, and thianyl. Exemplary 6-membered heterocyclyl groups containing 2 heteroatoms include, without limitation, piperazinyl, morpholinyl, dithianyl, and dioxanyl. Exemplary 6-membered heterocyclyl groups containing 3 heteroatoms include, without limitation, triazinyl. Exemplary 7-membered heterocyclyl groups containing 1 heteroatom include, without limitation, azepanyl, oxepanyl and thiepanyl. Exemplary 8-membered heterocyclyl groups containing 1 heteroatom include, without limitation, azocanyl, oxecanyl and thiocanyl. Exemplary bicyclic heterocyclyl groups include, without limitation, indolinyl, isoindolinyl, dihydrobenzofuranyl, dihydrobenzothienyl, tetrahydrobenzothienyl, tetrahydrobenzofuranyl, tetrahydroindolyl, tetrahydroquinolinyl, tetrahydroisoquinolinyl, decahydroquinolinyl, decahydroisoquinolinyl, octahydrochromenyl, octahydroisochromenyl, decahydronaphthyridinyl, decahydro-1,8-naphthyridinyl, octahydropyrrolo[3,2-b]pyrrole, indolinyl, phthalimidyl, naphthalimidyl, chromanyl, chromenyl, lH-benzo[e][1,4]diazepinyl, 1,4,5,7-tetrahydropyrano[3,4-b]pyrrolyl, 5,6-dihydro-4H-furo[3,2-b]pyrrolyl, 6,7-dihydro- 5H- furo[3,2-b]pyranyl, 5,7-dihydro-4H-thieno[2,3-c]pyranyl, 2,3-dihydro-1H-pyrrolo[2,3- b]pyridinyl, 2,3-dihydrofuro[2,3-b]pyridinyl, 4,5,6,7 -tetrahydro-1H-pyrrolo[2,3-b ]pyridinyl, 4,5,6,7-tetrahydrofuro[3,2-c]pyridinyl, 4,5,6,7-tetrahydrothieno[3,2-b]pyridinyl, 1,2,3,4- tetrahydro-1,6-naphthyridinyl, and the like.

[0054] The term "aryl" refers to a radical of a monocyclic or polycyclic (e.g., bicyclic or tricyclic) 4n+2 aromatic ring system (e.g., having 6, 10, or, 14 π electrons shared in a cyclearray) having 6-14 ring carbon atoms and zero heteroatoms provided in the aromatic ring system ("C6-14 aryl"). In some embodiments, an aryl group has 6 ring carbon atoms ("C6 aryl"; e.g., phenyl). In some embodiments, an aryl group has 10 ring carbon atoms ("C10 aryl"; e.g., naphthyl such as 1-naphthyl and 2-naphthyl). In some embodiments, an aryl group has 14 ring carbon atoms ("C14 aryl"; e.g., anthracyl). "Aryl" also includes ring systems wherein the aryl ring, as defined above, is fused with one or more carbocyclyl or heterocyclyl groups wherein the radical or point of attachment is on the aryl ring, and in such instances, the number of carbon atoms continue to designate the number of carbon atoms in the aryl ring system. Unless otherwise specified, each instance of an aryl group is independently unsubstituted (an "unsubstituted aryl") or substituted (a "substituted aryl") with one or more substituents. In certain embodiments, the aryl group is an unsubstituted C6- 14 aryl. In certain embodiments, the aryl group is a substituted C6-14 aryl.

[0055] "Aralkyl" is a subset of "alkyl" and refers to an alkyl group substituted by an aryl group, wherein the point of attachment is on the alkyl moiety.

[0056] The term "heteroaryl" refers to a radical of a 5-14 membered monocyclic or polycyclic (e.g., bicyclic, tricyclic) 4n+2 aromatic ring system (e.g., having 6, 10, or, 14 π electrons shared in a cyclic array) having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("5-14 membered heteroaryl"). In heteroaryl groups that contain one or more nitrogen atoms, the point of attachment can be a carbon or nitrogen atom, as valency permits. Heteroaryl polycyclic ring systems can include one or more heteroatoms in one or both rings. "Heteroaryl" includes ring systems wherein the heteroaryl ring, as defined above, is fused with one or more carbocyclyl or heterocyclyl groups wherein the point of attachment is on the heteroaryl ring, and in such instances, the number of ring members continue to designate the number of ring members in the heteroaryl ring system. "Heteroaryl" also includes ring systems wherein the heteroaryl ring, as defined above, is fused with one or more aryl groups wherein the point of attachment is either on the aryl or heteroaryl ring, and in such instances, the number of ring members designates the number of ring members in the fused polycyclic (aryl / heteroaryl) ring system. Polycyclic heteroaryl groups wherein one ring does not contain a heteroatom (e.g., indolyl, quinolinyl, carbazolyl, and the like) the point of attachment can be on either ring, i.e., either the ring bearing a heteroatom (e.g., 2-indolyl) or the ring that does not contain a heteroatom (e.g., 5-indolyl).

[0057] In some embodiments, a heteroaryl group is a 5-12 membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("5-12 membered heteroaryl"). In some embodiments, a heteroaryl group is a 5-10 membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("5-10 membered heteroaryl"). In some embodiments, a heteroaryl group is a 5-8 membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("5-8 membered heteroaryl"). In some embodiments, a heteroaryl group is a 5-6 membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur ("5-6 membered heteroaryl"). In some embodiments, the 5-6 membered heteroaryl has 1-3 ring heteroatoms selected from nitrogen, oxygen, and sulfur. In some embodiments, the 5-6 membered heteroaryl has 1-2 ring heteroatoms selected from nitrogen, oxygen, and sulfur. In some embodiments, the 5-6 membered heteroaryl has 1 ring heteroatom selected from nitrogen, oxygen, and sulfur. Unless otherwise specified, each instance of a heteroaryl group is independently unsubstituted (an "unsubstituted heteroaryl") or substituted (a "substituted heteroaryl") with one or more substituents. In certain embodiments, the heteroaryl group is an unsubstituted 5-14 membered heteroaryl. In certain embodiments, the heteroaryl group is a substituted 5-14 membered heteroaryl.

[0058] Exemplary 5-membered heteroaryl groups containing 1 heteroatom include, without limitation, pyrrolyl, furanyl, and thiophenyl. Exemplary 5-membered heteroaryl groups containing 2 heteroatoms include, without limitation, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, and isothiazolyl. Exemplary 5-membered heteroaryl groups containing 3 heteroatoms include, without limitation, triazolyl, oxadiazolyl, and thiadiazolyl. Exemplary 5-membered heteroaryl groups containing 4 heteroatoms include, without limitation, tetrazolyl. Exemplary 6- membered heteroaryl groups containing 1 heteroatom include, without limitation, pyridinyl. Exemplary 6-membered heteroaryl groups containing 2 heteroatoms include, without limitation, pyridazinyl, pyrimidinyl, and pyrazinyl. Exemplary 6-membered heteroaryl groups containing 3 or 4 heteroatoms include, withoutlimitation, triazinyl and tetrazinyl, respectively. Exemplary 7- membered heteroaryl groups containing 1 heteroatom include, without limitation, azepinyl, oxepinyl, and thiepinyl. Exemplary 5,6-bicyclic heteroaryl groups include, without limitation, indolyl, isoindolyl, indazolyl, benzotriazolyl, benzothiophenyl, isobenzothiophenyl, benzofuranyl, benzoisofuranyl, benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzoxadiazolyl, benzthiazolyl, benzisothiazolyl, benzthiadiazolyl, indolizinyl, and purinyl. Exemplary 6,6- bicyclic heteroaryl groups include, without limitation, naphthyridinyl, pteridinyl, quinolinyl, isoquinolinyl, cinnolinyl, quinoxalinyl, phthalazinyl, and quinazolinyl. Exemplary tricyclic heteroaryl groups include, without limitation, phenanthridinyl, dibenzofuranyl, carbazolyl, acridinyl, phenothiazinyl, phenoxazinyl, and phenazinyl.

[0059] "Heteroaralkyl" is a subset of "alkyl" and refers to an alkyl group substituted by a heteroaryl group, wherein the point of attachment is on the alkyl moiety.

[0060] The term "unsaturated bond" refers to a double or triple bond.

[0061] The term "unsaturated" or "partially unsaturated" refers to a moiety that includes at least one double or triple bond.

[0062] The term "saturated" refers to a moiety that does not contain a double or triple bond, i.e., the moiety only contains single bonds.

[0063] Affixing the suffix "-ene" to a group indicates the group is a divalent moiety, e.g., alkylene is the divalent moiety of alkyl, alkenylene is the divalent moiety of alkenyl, alkynylene is the divalent moiety of alkynyl, heteroalkylene is the divalent moiety of heteroalkyl, heteroalkenylene is the divalent moiety of heteroalkenyl, heteroalkynylene is the divalent moiety of heteroalkynyl, carbocyclylene is the divalent moiety of carbocyclyl, heterocyclylene is the divalent moiety of heterocyclyl, arylene is the divalent moiety of aryl, and heteroarylene is the divalent moiety of heteroaryl.

[0064] A group is optionally substituted unless expressly provided otherwise. The term "optionally substituted" refers to being substituted or unsubstituted. In certain embodiments, alkyl, alkenyl, alkynyl, alkoxy, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, cycloalkyl, heterocyclyl, aryl, and heteroaryl groups are optionally substituted. "Optionally substituted" refers to a group which may be substituted or unsubstituted (e.g., "substituted" or "unsubstituted" alkyl, "substituted" or "unsubstituted" alkenyl, "substituted" or "unsubstituted" alkynyl, "substituted" or "unsubstituted" heteroalkyl, "substituted" or "unsubstituted" heteroalkenyl, "substituted" or "unsubstituted" heteroalkynyl, "substituted"or "unsubstituted" carbocyclyl, "substituted" or "unsubstituted" heterocyclyl, "substituted" or "unsubstituted" aryl or "substituted" or "unsubstituted" heteroaryl group). In general, the term "substituted" means that at least one hydrogen present on a group is replaced with a permissible substituent, e.g., a substituent which upon substitution results in a stable compound, e.g., a compound which does not spontaneously undergo transformation such as by rearrangement, cyclization, elimination, or other reaction. Unless otherwise indicated, a "substituted" group has a substituent at one or more substitutable positions of the group, and when more than one position in any given structure is substituted, the substituent is either the same or different at each position. The term "substituted" is contemplated to include substitution with all permissible substituents of organic compounds, and includes any of the substituents described herein that results in the formation of a stable compound. The present invention contemplates any and all such combinations in order to arrive at a stable compound. For purposes of this invention, heteroatoms such as nitrogen may have hydrogen substituents and / or any suitable substituent as described herein which satisfy the valencies of the heteroatoms and results in the formation of a stable moiety. The invention is not intended to be limited in any manner by the exemplary substituents described herein.

[0065] Exemplary carbon atom substituents include, but are not limited to, halogen, - CN, -NO2, -N3, -SO2H, -SO3H, -OH, -ORaa, -ON(Rbb)2, -N(Rbb)2, -N(Rbb)3+X-, -N(ORcc)Rbb, -SH, -SRaa, -SSRcc, -C(=O)Raa, -CO2H, -CHO, -C(ORcc)3, -CO2Raa, -OC(=O)Raa, -OCO2Raa, - C(=O)N(Rbb)2, -OC(=O)N(Rbb)2, -NRbbC(=O)Raa, -NRbbCO2Raa, -NRbbC(=O)N(Rbb)2, - C(=NRbb)Raa, -C(=NRbb)ORaa, -OC(=NRbb)Raa, -OC(=NRbb)ORaa, -C(=NRbb)N(Rbb)2, - OC(=NRbb)N(Rbb)2, -NRbbC(=NRbb)N(Rbb)2, -C(=O)NRbbSO2Raa, -NRbbSO2Raa, - SO2N(Rbb)2, -SO2Raa, -SO2ORaa, -OSO2Raa, -S(=O)Raa, -OS(=O)Raa, -Si(Raa)3, -OSi(Raa)3, - C(=S)N(Rbb)2, -C(=O)SRaa, -C(=S)SRaa, -SC(=S)SRaa, -SC(=O)SRaa, -OC(=O)SRaa, - SC(=O)ORaa, -SC(=O)Raa, -P(=O)(Raa)2, -P(=O)(ORcc)2, -OP(=O)(Raa)2, -OP(=O)(ORcc)2, - P(=O)(N(Rbb)2)2,-OP(=O)(N(Rbb)2)2, -NRbbP(=O)(Raa)2, -NRbbP(=O)(ORcc)2, - NRbbP(=O)(N(Rbb)2)2, -P(Rcc)2, -P(ORcc)2, -P(Rcc)3+X–, -P(ORcc)3+X–, -P(Rcc)4, -P(ORcc)2, - OP(Rcc)2, -OP(Rcc)3+X–, -OP(ORcc)2, -OP(ORcc)3+X–, -OP(Rcc)4, -OP(ORcc)4, -B(Raa)2, - B(ORcc)2, -BRaa(ORcc), C1-10alkyl, C1-10perhaloalkyl, C2-10alkenyl, C2- 10alkynyl, heteroC1-10alkyl, heteroC2-10alkenyl, heteroC2-10alkynyl, C3-10carbocyclyl, 3-14 membered heterocyclyl, C6-14 aryl, and 5-14 membered heteroaryl, wherein each alkyl, alkenyl,alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rddgroups; wherein X–is a counterion; or two geminal hydrogens on a carbon atom are replaced with the group =O, =S, =NN(Rbb)2, =NNRbbC(=O)Raa, =NNRbbC(=O)ORaa, =NNRbbS(=O)2Raa, =NRbbor =NORcc; each instance of Raais, independently, selected from C1-10 alkyl, C1-10 perhaloalkyl, C2-10alkenyl, C2-10alkynyl, heteroC1-10 alkyl, heteroC2-10alkenyl, heteroC2-10alkynyl, C3-10 carbocyclyl, 3-14 membered heterocyclyl, C6-14aryl, and 5-14 membered heteroaryl, or two Raagroups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rddgroups; each instance of Rbbis, independently, selected from hydrogen, -OH, -ORaa, -N(Rcc)2, -CN, -C(=O)Raa, -C(=O)N(Rcc)2, -CO2Raa, -SO2Raa, -C(=NRcc)ORaa, - C(=NRcc)N(Rcc)2, -SO2N(Rcc)2, -SO2Rcc, -SO2ORcc, -SORaa, -C(=S)N(Rcc)2, -C(=O)SRcc, - C(=S)SRcc, -P(=O)(Raa)2, -P(=O)(ORcc)2, -P(=O)(N(Rcc)2)2, C1-10 alkyl, C1-10 perhaloalkyl, C2-10alkenyl, C2-10alkynyl, heteroC1-10 alkyl, heteroC2-10alkenyl, heteroC2-10alkynyl, C3-10 carbocyclyl, 3-14 membered heterocyclyl, C6-14aryl, and 5-14 membered heteroaryl, or two Rbbgroups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rddgroups; wherein X–is a counterion; each instance of Rccis, independently, selected from hydrogen, C1-10 alkyl, C1-10 perhaloalkyl, C2-10alkenyl, C2-10alkynyl, heteroC1-10alkyl, heteroC2-10alkenyl, heteroC2-10alkynyl, C3-10carbocyclyl, 3-14 membered heterocyclyl, C6-14 aryl, and 5-14 membered heteroaryl, or two Rccgroups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rddgroups; each instance of Rddis, independently, selected from halogen, -CN, -NO2, -N3, -SO2H, -SO3H, -OH, -ORee, -ON(Rff)2, -N(Rff)2, -N(Rff)3+X–, -N(ORee)Rff, -SH, -SRee, -SSRee, -C(=O)Ree, -CO2H, - CO2Ree, -OC(=O)Ree, -OCO2Ree, -C(=O)N(Rff)2, -OC(=O)N(Rff)2, -NRffC(=O)Ree, - NRffCO2Ree, -NRffC(=O)N(Rff)2, -C(=NRff)ORee, -OC(=NRff)Ree, -OC(=NRff)ORee, - C(=NRff)N(Rff)2, -OC(=NRff)N(Rff)2, -NRffC(=NRff)N(Rff)2, -NRffSO2Ree, -SO2N(Rff)2, - SO2Ree, -SO2ORee, -OSO2Ree, -S(=O)Ree, -Si(Ree)3, -OSi(Ree)3, -C(=S)N(Rff)2, -C(=O)SRee, -C(=S)SRee, -SC(=S)SRee, -P(=O)(ORee)2, -P(=O)(Ree)2, -OP(=O)(Ree)2, -OP(=O)(ORee)2, C1-6 alkyl, C1-6perhaloalkyl, C2-6 alkenyl, C2-6 alkynyl, heteroC1-6alkyl, heteroC2-6 alkenyl, heteroC2-6 alkynyl, C3-10 carbocyclyl, 3-10 membered heterocyclyl, C6-10 aryl, 5-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rgggroups, or two geminal Rddsubstituents can be joined to form =O or =S; wherein X–is a counterion; each instance of Reeis, independently, selected from C1-6alkyl, C1-6perhaloalkyl, C2-6 alkenyl, C2-6 alkynyl, heteroC1-6alkyl, heteroC2-6 alkenyl, heteroC2-6 alkynyl, C3-10 carbocyclyl, C6-10 aryl, 3-10 membered heterocyclyl, and 3-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rgggroups; each instance of Rffis, independently, selected from hydrogen, C1-6alkyl, C1-6perhaloalkyl, C2-6alkenyl, C2-6alkynyl, heteroC1-6alkyl, heteroC2-6 alkenyl, heteroC2-6 alkynyl, C3-10 carbocyclyl, 3-10 membered heterocyclyl, C6-10 aryl and 5-10 membered heteroaryl, or two Rffgroups are joined to form a 3-10 membered heterocyclyl or 5-10 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rgggroups; and each instance of Rggis, independently, halogen, -CN, -NO2, -N3, -SO2H, -SO3H, -OH, -OC1-6alkyl, -ON(C1-6alkyl)2, -N(Cl-6 alkyl)2, -N(Cl-6 alkyl)3+X–, -NH(Cl-6 alkyl)2+X–, -NH2(C1-6alkyl)+X–, - NH3+X–, -N(OC1-6alkyl)(Cl-6 alkyl), -N(OH)(Cl-6 alkyl), -NH(OH), -SH, -SC1-6alkyl, - SS(Cl-6alkyl), -C(=O)(Cl-6alkyl), -CO2H, -CO2(C1-6alkyl), -OC(=O)(Cl-6alkyl), -OCO2(C1-6alkyl), -C(=O)NH2, -C(=O)N(C1-6alkyl)2, -OC(=O)NH(C1-6alkyl), -NHC(=O)(Cl-6 alkyl), - N(Cl-6alkyl)C(=O)( C1-6alkyl), -NHCO2(C1-6alkyl), -NHC(=O)N(Cl-6alkyl)2, - NHC(=O)NH(Cl-6alkyl), -NHC(=O)NH2, -C(=NH)O(Cl-6alkyl), -OC(=NH)(Cl-6alkyl), - OC(=NH)OCl-6 alkyl, -C(=NH)N(Cl-6 alkyl)2, -C(=NH)NH(Cl-6 alkyl), -C(=NH)NH2, - OC(=NH)N(C1-6alkyl)2, -OC(=NH)NH(C1-6alkyl), -OC(=NH)NH2, -NHC(=NH)N(C1-6alkyl)2, -NHC(=NH)NH2, -NHSO2(C1-6alkyl), -SO2N(C1-6alkyl)2, -SO2NH(C1-6alkyl), - SO2NH2, -SO2(C1-6alkyl), -SO2O(C1-6alkyl), -OSO2(C1-6alkyl), -SO(C1-6alkyl), -Si(Cl-6 alkyl)3, -OSi(Cl-6alkyl)3, -C(=S)N(Cl-6alkyl)2, -C(=S)NH(Cl-6alkyl), -C(=S)NH2, - C(=O)S(Cl-6alkyl), -C(=S)SC1-6alkyl, -SC(=S)SC1-6alkyl, -P(=O)(OC1-6alkyl)2, -P(=O)(C1-6 alkyl)2, -OP(=O)(Cl-6 alkyl)2, -OP(=O)(OCl-6 alkyl)2, C1-6alkyl, C1-6perhaloalkyl, C2-6alkenyl, C2-6alkynyl, heteroC1-6alkyl, heteroC2-6alkenyl, heteroC2-6alkynyl, C3-10carbocyclyl, C6-10 aryl, 3-10 membered heterocyclyl, 5-10 membered heteroaryl; or two geminal Rggsubstituents can be joined to form =O or =S; wherein X–is a counterion.

[0066] The term "halo" or "halogen" refers to fluorine (fluoro, -F), chlorine (chloro, - Cl), bromine (bromo, -Br), or iodine (iodo, -I).

[0067] The term "hydroxyl" or "hydroxy" refers to the group -OH. The term "substituted hydroxyl" or "substituted hydroxyl," by extension, refers to a hydroxyl group wherein the oxygen atom directly attached to the parent molecule is substituted with a group other than hydrogen, and includes groups selected from -ORaa, -ON(Rbb)2, -OC(=O)SRaa, -OC(=O)Raa, -OCO2Raa, -OC(=O)N(Rbb)2, -OC(=NRbb)Raa, -OC(=NRbb)ORaa, -OC(=NRbb)N(Rbb)2, - OS(=O)Raa, -OSO2Raa, -OSi(Raa)3, -OP(Rcc)2, -OP(Rcc)3+X–, -OP(ORcc)2, -OP(ORcc)3+X–, - OP(=O)(Raa)2, -OP(=O)(ORcc)2, and -OP(=O)(N(Rbb)2)2, wherein X–, Raa, Rbband Rccare as defined herein.

[0068] The term "amino" refers to the group -NH2. The term "substituted amino," by extension, refers to a monosubstituted amino, a disubstituted amino, or a trisubstituted amino. In certain embodiments, the "substituted amino" is a monosubstituted amino or a disubstituted ammino group.

[0069] The term "monosubstituted amino" refers to an amino group wherein the nitrogen atom directly attached to the parent molecule is substituted with one hydrogen and one group other than hydrogen, and includes groups selected from -NH(Rbb), -NHC(=O)Raa, - NHCO2Raa, -NHC(=O)N(Rbb)2, -NHC(=NRbb)N(Rbb)2, -NHSO2Raa, -NHP(=O)(ORcc)2, and -NHP(=O)(N(Rbb)2)2, wherein Raa, Rbb, and Rccare as defined herein, and wherein Rbbof the group -NH(Rbb) is not hydrogen.

[0070] The term "disubstituted amino" refers to an amino group wherein the nitrogen atom directly attached to the parent molecule is substituted with two groups other than hydrogen, and

[0071] includes groups selected from -N(Rbb)2, -NRbbC(=O)Raa, -NRbbCO2Raa, - NRbbC(=O)N(Rbb)2, -NRbbC(=NRbb)N(Rbb)2, -NRbbSO2Raa, -NRbbP(=O)(ORcc)2, and - NRbbP(=O)(N(Rbb)2)2, wherein Raa, Rbb, and Rccare as defined herein, with the proviso that the nitrogen atom directly attached to the parent molecule is not substituted with hydrogen.

[0072] The term "trisubstituted amino" refers to an amino group wherein the nitrogen atom directly attached to the parent molecule is substituted with three groups, and includes groups selected from -N(Rbb)2 and -N(Rbb)3+X–, wherein Rbband X–are as defined herein.

[0073] The term "sulfonyl" refers to a group selected from -SO2N(Rbb)2, -SO2Raa, and- SO2ORaa, wherein Raaand Rbbare as defined herein.

[0074] The term "sulfinyl" refers to the group -S(=O)Raa, wherein Raais as defined herein.

[0075] The term "acyl" refers to a group having the general formula -C(=O)RX1, - C(=O)ORX1, -C(=O)-O-C(=O)RX1, -C(=O)SRX1, -C(=O)N(RX1)2, -C(=S)RX1, - C(=S)N(RX1)2, -C(=S)O(RX1), -C(=S)S(RX1), -C(=NRX1)RX1, -C(=NRX1)ORX1, - C(=NRX1)SRX1, and -C(=NRX1)N(RX1)2, wherein RX1is hydrogen; halogen; substituted or unsubstituted hydroxyl; substituted or unsubstituted thiol; substituted or unsubstituted amino; substituted or unsubstituted acyl, cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched alkyl; cyclic or acyclic, substituted or unsubstituted, branched or unbranched alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, aliphaticoxy, heteroaliphaticoxy, alkyloxy, heteroalkyloxy, aryloxy, heteroaryloxy, aliphaticthioxy, heteroaliphaticthioxy, alkylthioxy, heteroalkylthioxy, arylthioxy, heteroarylthioxy, mono- or di- aliphaticamino, mono- or di- heteroaliphaticamino, mono- or di-alkylamino, mono- or di-heteroalkylamino, mono- or di- arylamino, or mono- or di-heteroarylamino; or two RX1groups taken together form a 5- to 6- membered heterocyclic ring.

[0076] Exemplary acyl groups include aldehydes (-CHO), carboxylic acids (-CO2H), ketones, acyl halides, esters, amides, imines, carbonates, carbamates, and ureas. Acyl substituents include, butare not limited to, any of the substituents described herein, that result in the formation of a stable moiety (e.g., aliphatic, alkyl, alkenyl, alkynyl, heteroaliphatic, heterocyclic, aryl, heteroaryl, acyl, oxo, imino, thiooxo, cyano, isocyano, amino, azido, nitro, hydroxyl, thiol, halo, aliphaticamino, heteroaliphaticamino, alkylamino, heteroalkylamino, arylamino, heteroarylamino, alkylaryl, arylalkyl, aliphaticoxy, heteroaliphaticoxy, alkyloxy, heteroalkyloxy, aryloxy, heteroaryloxy, aliphaticthioxy,heteroaliphaticthioxy, alkylthioxy, heteroalkylthioxy, arylthioxy, heteroarylthioxy, acyloxy, and the like, each of which may or may not be further substituted).

[0077] The term "carbonyl" refers a group wherein the carbon directly attached to the parent molecule is sp2hybridized, and is substituted with an oxygen, nitrogen or sulfur atom, e.g., a group selected from ketones (e.g., -C(=O)Raa), carboxylic acids (e.g., -CO2H), aldehydes(- CHO), esters (e.g., -CO2Raa, -C(=O)SRaa, -C(=S)SRaa), amides (e.g., - C(=O)N(Rbb)2,-C(=O)NRbbSO2Raa, -C(=S)N(Rbb)2, and imines (e.g., -C(=NRbb)Raa, - C(=NRbb)ORaa), -C(=NRbb)N(Rbb)2, wherein Raaand Rbbare as defined herein.

[0078] The term "oxo" refers to the group =O, and the term "thiooxo" refers to the group =S.

[0079] Nitrogen atoms can be substituted or unsubstituted as valency permits, and include primary, secondary, tertiary, and quaternary nitrogen atoms. Exemplary nitrogen atom substituents include, but are not limited to, hydrogen, -OH, -ORaa, -N(Rcc)2, -CN, - C(=O)Raa, -C(=O)N(Rcc)2, -CO2Raa, -SO2Raa, -C(=NRbb)Raa, -C(=NRcc)ORaa, - C(=NRcc)N(Rcc)2, -SO2N(Rcc)2, -SO2Rcc, -SO2ORcc, -SORaa, -C(=S)N(Rcc)2, -C(=O)SRcc, - C(=S)SRcc, -P(=O)(ORcc)2, -P(=O)(Raa)2, -P(=O)(N(Rcc)2)2, C1-10 alkyl, C1-10 perhaloalkyl, C2-10alkenyl, C2-10alkynyl, heteroC1-10 alkyl, heteroC2-10alkenyl, heteroC2-10alkynyl, C3-10 carbocyclyl, 3-14 membered heterocyclyl, C6-14aryl, and 5-14 membered heteroaryl, or two Rccgroups attached to an N atom are joined to form a 3-14 membered heterocyclyl or a 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rddgroups, and wherein Raa, Rbb, Rcc, and Rddare as defined herein.

[0080] In certain embodiments, the substituent present on the nitrogen atom is an nitrogen protecting group (also referred to herein as an "amino protecting group"). Nitrogen protecting groups include, but are not limited to, -OH, -ORaa, -N(Rcch, -C(=O)Raa, - C(=O)N(Rcc)2, -CO2Raa, -SO2Raa, -C(=NRcc)Raa, -C(=NRcc)ORaa, -C(=NRcc)N(Rcc)2, -SO2N(Rcc)2, -SO2Rcc, -SO2ORcc, -SORaa, -C(=S)N(Rcc)2, -C(=O)SRcc, -C(=S)SRcc, C1-10 alkyl (e.g., aralkyl, heteroaralkyl), C2-10alkenyl, C2-10alkynyl, heteroC1-10alkyl, heteroC2-10alkenyl, heteroC2-10alkynyl, C3-10carbocyclyl, 3-14 membered heterocyclyl, C6-14aryl, and 5-14 membered heteroaryl groups, wherein each alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl,heteroalkynyl, carbocyclyl, heterocyclyl, aralkyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 Rddgroups, and wherein Raa, Rbb, Rccand Rddare as defined herein. Nitrogen protecting groups are well known in the art and include those described in detail in Protecting Groups in Organic Synthesis, T. W. Greene and P. G. M. Wuts, 3rdedition, John Wiley & Sons, 1999, incorporated herein by reference.

[0081] For example, nitrogen protecting groups such as amide groups (e.g., -C(=O)Raa) include, but are not limited to, formamide, acetamide, chloroacetamide, trichloroacetamide, trifluoroacetamide, phenylacetamide, 3-phenylpropanamide, picolinamide, 3- pyridylcarboxamide, N-benzoylphenylalanyl derivative, benzamide, p-phenylbenzamide, o- nitrophenylacetamide, o-nitrophenoxyacetamide, acetoacetamide, (N'- dithiobenzyloxyacylamina)acetamide, 3-(p-hydroxypheny1)propanamide, 3-(o-nitrophen y1)propanamide, 2-methyl-2-(o-nitrophenoxy)propanamide, 2-methy1-2-(o- phenylazophenoxy )propanamide, 4-chlorobutanamide, 3-methyl-3-nitrobutanamide, o-nitrocinnamide, N-acetylmethionine derivative, o-nitrobenzamide and o-(benzoyloxymethyl)benzamide.

[0082] Nitrogen protecting groups such as carbamate groups (e.g., -C(=O)ORaa) include, but are not limited to, methyl carbamate, ethyl carbamate, 9-fluorenylmethyl carbamate (Fmoc), 9-(2-sulfa)fluorenylmethy1 carbamate, 9-(2,7-dibromo)fluoroenylmethy1 carbamate, 2,7-di-t-buty1- [9-(10,10-dioxo-10,10,10,10-tetrahydrothioxanthyl)]methyl carbamate (DBD-Tmoc), 4- methoxyphenacyl carbamate (Phenoc), 2,2,2-trichloroethyl carbamate (Troc), 2- trimethylsilylethyl carbamate (Teoc), 2-phenylethyl carbamate (hZ), 1- (1-adamantyl)-1- methylethyl carbamate (Adpoc), 1,1-dimethyl-2-haloethyl carbamate, 1,1- dimethyl-2,2- dibromoethyl carbamate (DB-t-BOC), 1,1-dimethyl-2,2,2-trichloroethyl carbamate (TCBOC), 1- methyl-1-(4-biphenylyl)ethyl carbamate (Bpoc), 1-(3,5-di-t- butylphenyl)-1-methylethyl carbamate (t-Bumeoc), 2-(2'- and 4'-pyridyl)ethyl carbamate (Pyoc), 2-(N,N- dicyclohexylcarboxamido)ethyl carbamate, t-butyl carbamate (BOC or Boc), 1-adamantyl carbamate (Adoc), vinyl carbamate (Voc), allyl carbamate (Alloc), 1- isopropylallyl carbamate (Ipaoc), cinnamyl carbamate (Coc), 4-nitrocinnamyl carbamate (Noc), 8-quinolyl carbamate, N- hydroxypiperidinyl carbamate, alkyldithio carbamate, benzyl carbamate (Cbz), p-methoxybenzyl carbamate (Moz), p-nitrobenzyl carbamate, p- bromobenzyl carbamate, p-chlorobenzyl carbamate, 2,4-dichlorobenzyl carbamate, 4- methylsulfinylbenzyl carbamate (Msz), 9- anthrylmethyl carbamate, diphenylmethylcarbamate, 2-methylthioethyl carbamate, 2- methylsulfonylethyl carbamate, 2-(p- toluenesulfonyl)ethyl carbamate, [2-(1,3-dithianyl)]methyl carbamate (Dmoc), 4- methylthiophenyl carbamate (Mtpc), 2,4-dimethylthiophenyl carbamate (Bmpc), 2- phosphonioethyl carbamate (Peoc), 2-triphenylphosphonioisopropyl carbamate (Ppoc), 1,1- dimethyl-2-cyanoethyl carbamate, m-chloro-p-acyloxybenzyl carbamate, p- (dihydroxyboryl)benzyl carbamate, 5-benzisoxazolylmethyl carbamate, 2-(trifluoromethyl)- 6- chromonylmethyl carbamate (Tcroc), m-nitrophenyl carbamate, 3,5-dimethoxybenzyl carbamate, o-nitrobenzyl carbamate, 3,4-dimethoxy-6-nitrobenzyl carbamate, phenyl(o- nitrophenyl)methyl carbamate, t-amyl carbamate, S-benzyl thiocarbamate, p-cyanobenzyl carbamate, cyclobutyl carbamate, cyclohexyl carbamate, cyclopentyl carbamate, cyclopropylmethyl carbamate, p- decyloxybenzyl carbamate, 2,2-dimethoxyacylvinyl carbamate, o-(N,N-dimethylcarboxamido )benzy1 carbamate, 1,1-dimethy1-3-(N,N- dimethylcarboxamido )propy1 carbamate, 1,1-dimethylpropynyl carbamate, di(2- pyridyl)methyl carbamate, 2-furanylmethyl carbamate, 2-iodoethyl carbamate, isoborynl carbamate, isobutyl carbamate, isonicotinyl carbamate, p-(p' -methoxyphenylazo )benzyl carbamate, 1-methylcyclobutyl carbamate, 1- methylcyclohexyl carbamate, 1-methyl-1- cyclopropylmethyl carbamate, 1-methyl-1-(3,5- dimethoxyphenyl)ethyl carbamate, 1- methyl-1-(p-phenylazophenyl)ethyl carbamate, 1-methyl-1- phenylethyl carbamate, 1- methyl-1-(4-pyridyl)ethyl carbamate, phenyl carbamate, p- (phenylazo)benzyl carbamate, 2,4,6-tri-t-butylphenyl carbamate, 4-(trimethylammonium)benzyl carbamate, and 2,4,6- trimethylbenzyl carbamate.

[0083] Nitrogen protecting groups such as sulfonamide groups (e.g., -S(=O)2Raa) include, but are not limited to, p-toluenesulfonamide (Ts), benzenesulfonamide, 2,3,6- trimethyl-4- methoxybenzenesulfonamide (Mtr), 2,4,6-trimethoxybenzenesulfonamide (Mtb), 2,6-dimethyl-4- methoxybenzenesulfonamide (Pme), 2,3,5,6-tetramethyl-4- methoxybenzenesulfonamide (Mte), 4-methoxybenzenesulfonamide (Mbs), 2,4,6- trimethylbenzenesulfonamide (Mts), 2,6- dimethoxy-4-methylbenzenesulfonamide (iMds), 2,2,5,7,8-pentamethylchroman-6-sulfonamide (Pmc), methanesulfonamide (Ms), - trimethylsilylethanesulfonamide (SES), 9- anthracenesulfonamide, 4-(4',8'- dimethoxynaphthylmethyl)benzenesulfonamide (DNMBS ), benzylsulfonamide, trifluoromethylsulfonamide, and phenacylsulfonamide.

[0084] Other nitrogen protecting groups include, but are not limited to, phenothiazinyl- (10)- acyl derivative, N'-p-toluenesulfonylaminoacyl derivative, N'-phenylaminothioacyl derivative, N-benzoylphenylalanyl derivative, N-acetylmethionine derivative, 4,5-diphenyl- 3-oxazolin-2- one, N-phthalimide, N-dithiasuccinimide (Dts), N-2,3-diphenylmaleimide, N- 2,5- dimethylpyrrole, N-1,1,4,4-tetramethyldisilylazacyclopentane adduct (STABASE), 5- substituted 1,3-dimethy1-1,3,5-triazacyclohexan- 2-one, 5-substituted 1,3-dibenzyl-1 ,3,5- triazacyclohexan- 2-one, 1-substituted 3,5-dinitro-4-pyridone, N-methylamine, N- allylamine, N-[2- (trimethylsilyl)ethoxy ]methylamine (SEM), N-3-acetoxypropylamine, N- (1-isopropyl-4-nitro-2- oxo-3-pyroolin-3-yl)amine, quaternary ammonium salts, N- benzylamine, N-di(4- methoxyphenyl)methylamine, N-5-dibenzosuberylamine, N- triphenylmethylamine (Tr), N-[(4- methoxyphenyl)diphenylmethyl]amine (MMTr), N-9- phenylfluorenylamine (PhF), N-2,7- dichloro-9-fluorenylmethyleneamine, N- ferrocenylmethylamino (Fern), N-2-picolylamino N'-oxide, N-1,1- dimethylthiomethyleneamine, N-benzylideneamine, N-p-methox ybenzy lideneamine, N- diphenylmethyleneamine, N-[(2-pyrid y1)mesity1]methyleneamine, N-(N' ,N'- dimethylaminomethylene)amine, N,N'-isopropylidenediamine, N-p-nitrobenzylideneamine, N-salicylideneamine, N- 5-chlorosalicylideneamine, N-(5-chloro-2- hydrox yphen y1)phenylmethyleneamine, N -cyclohex ylideneamine, N-(5,5-dimethy1-3-oxo-1- cyclohexenyl)amine, N-borane derivative, N-diphenylborinic acid derivative, N- [phenyl(pentaacylchromium- or tungsten)acyl]amine, N-copper chelate, N-zinc chelate, N- nitroamine, N-nitrosoamine, amine N-oxide, diphenylphosphinamide (Dpp), dimethylthiophosphinamide (Mpt), diphenylthiophosphinamide (Ppt), dialkyl phosphoramidates, dibenzyl phosphoramidate, diphenyl phosphoramidate, benzenesulfenamide, o- nitrobenzenesulfenamide (Nps ), 2,4-dinitrobenzenesulfenamide, pentachlorobenzenesulfenamide, 2-nitro-4-methoxybenzenesulfenamide, triphenylmethylsulfenamide, and 3-nitropyridinesulfenamide (Npys). In certain embodiments, a nitrogen protecting group is benzyl (Bn), tert-butyloxycarbonyl (BOC), carbobenzyloxy (Cbz), 9-flurenylmethyloxycarbonyl (Fmoc), trifluoroacetyl, triphenylmethyl, acetyl (Ac), benzoyl (Bz), p-methoxybenzyl (PMB), 3,4-dimethoxybenzyl (DMPM), p-methoxyphenyl (PMP), 2,2,2- trichloroethyloxycarbonyl (Troc), triphenylmethyl (Tr), tosyl (Ts), brosyl (Bs), nosyl (Ns), mesyl (Ms), triflyl (Tf), or dansyl (Ds).

[0085] In certain embodiments, the substituent present on an oxygen atom is an oxygen protecting group (also referred to herein as an "hydroxyl protecting group"). Oxygen protecting groups include, but are not limited to, -Raa, -N(Rbb)2, -C(=O)SRaa, -C(=O)Raa, - CO2Raa, -C(=O)N(Rbb)2, -C(=NRbb)Raa, -C(=NRbb)ORaa, -C(=NRbb)N(Rbb)2, -S(=O)Raa, - SO2Raa, -Si(Raa)3, -P(Rcc)2, -P(Rcc)3+X–, -P(ORcc)2, -P(ORcc)3+X–, -P(=O)(Raa)2, - P(=O)(ORcc)2, and -P(=O)(N(Rbb)2)2, wherein X–, Raa, Rbb, and Rccare as defined herein. Oxygen protecting groups are well known in the art and include those described in detail in Protecting Groups in Organic Synthesis, T. W. Greene and P. G. M. Wuts, 3rdedition, John Wiley & Sons, 1999, incorporated herein by reference.

[0086] Exemplary oxygen protecting groups include, but are not limited to, methyl, methoxylmethyl (MOM), methylthiomethyl (MTM), t-butylthiomethyl, (phenyldimethylsilyl)methoxymethyl (SMOM), benzyloxymethyl (BOM), p- methoxybenzyloxymethyl (PMBM), (4-methoxyphenoxy)methyl (p-AOM), guaiacolmethyl (GUM), t-butoxymethyl, 4-pentenyloxymethyl (POM), siloxymethyl, 2- methoxyethoxymethyl (MEM), 2,2,2-trichloroethoxymethy1, bis(2-chloroethoxy)methy1, 2- (trimethylsilyl)ethoxymeth yl (SEMOR), tetrahydropyranyl (THP), 3- bromotetrahydropyranyl, tetrahydrothiopyranyl, 1- methoxycyclohexy1, 4- methoxytetrahydropyrany1 (MTHP), 4-methoxytetrahydrothiopyrany1, 4- methoxytetrahydrothiopyranyl S,S-dioxide, 1-[(2-chloro-4-meth y1)pheny1]-4-methox ypiperidin-4-yl (CTMP), 1,4-dioxan-2-yl, tetrahydrofuranyl, tetrahydrothiofuranyl, 2,3,3a,4,5,6,7,7a-octahydro-7,8,8-trimethyl-4,7-methanobenzofuran-2-yl, 1-ethoxyethyl, 1- (2-chloroethoxy)ethyl, 1-methyl-1-methoxyethyl, 1-methyl-1-benzyloxyethyl, 1-methyl-1- benzyloxy-2-fluoroethyl, 2,2,2-trichloroethyl, 2-trimethylsilylethyl, 2-(phenylselenyl)ethyl, t-butyl, allyl, p-chlorophenyl, p-methoxyphenyl, 2,4-dinitrophenyl, benzyl (Bn), p- methoxybenzyl, 3,4-dimethoxybenzyl, o-nitrobenzyl, p-nitrobenzyl, p-halobenzyl, 2,6- dichlorobenzyl, p-cyanobenzyl, p-phenylbenzyl, 2- picolyl, 4-picolyl, 3-methyl-2-picolyl N- oxido, diphenylmethyl, p,p'-dinitrobenzhydryl, 5-dibenzosuberyl, triphenylmethyl, a- naphthyldiphenylmethyl, p-methoxyphenyldiphenylmethyl, di(p- methoxyphenyl)phenylmethyl, tri(p-methoxyphenyl)methyl, 4-(4'-bromophenacy loxyphen y1)diphen ylmethy1, 4,4',4"-tris(4,5-dichlorophthalimidopheny1)methy1, 4,4',4"- tris(levulinoyloxyphenyl)methyl, 4,4',4"-tris(benzoyloxyphenyl)methyl, 3-(imidazol-1-yl)bis(4',4"-dimethoxyphenyl)methyl, 1,1-bis(4-methoxyphenyl)-1'-pyrenylmethyl, 9- anthryl, 9- (9-phenyl)xanthenyl, 9-(9-phenyl-10-oxo)anthryl, 1,3-benzodithiolan-2-yl, benzisothiazolyl S,S- dioxido, trimethylsilyl (TMS), triethylsilyl (TES), triisopropylsilyl (TIPS), dimethylisopropylsilyl (IPDMS), diethylisopropylsilyl (DEIPS), dimethylthexylsilyl, t- butyldimethylsilyl (TBDMS), t-butyldiphenylsilyl (TBDPS), tribenzylsilyl, tri-p-xylylsilyl, triphenylsilyl, diphenylmethylsilyl (DPMS), t- butylmethoxyphenylsilyl (TEMPS), formate, benzoylformate, acetate, chloroacetate, dichloroacetate, trichloroacetate, trifluoroacetate, methoxyacetate, triphenylmethoxyacetate, phenoxyacetate, p-chlorophenoxyacetate, 3- phenylpropionate, 4-oxopentanoate (levulinate), 4,4-(ethylenedithio )pentanoate (levulinoyldithioacetal), pivaloate, adamantoate, crotonate, 4-methoxycrotonate, benzoate, p- phenylbenzoate, 2,4,6-trimethylbenzoate (mesitoate), methyl carbonate, 9-fluorenylmethyl carbonate (Fmoc), ethyl carbonate, 2,2,2-trichloroethyl carbonate (Troc), 2-(trimethylsilyl)ethyl carbonate (TMSEC), 2-(phenylsulfonyl) ethyl carbonate (Psec), 2-(triphenylphosphonio) ethyl carbonate (Peoc), isobutyl carbonate, vinyl carbonate, allyl carbonate, t-butyl carbonate (BOC or Boc), p-nitrophenyl carbonate, benzyl carbonate, p-methoxybenzyl carbonate, 3,4- dimethoxybenzyl carbonate, o-nitrobenzyl carbonate, p-nitrobenzyl carbonate, S-benzyl thiocarbonate, 4-ethoxy-1-napththyl carbonate, methyl dithiocarbonate, 2-iodobenzoate, 4-azidobutyrate, 4-nitro-4-methylpentanoate, o- (dibromomethyl)benzoate, 2- formylbenzenesulfonate, 2-(methylthiomethoxy)ethy1, 4- (meth ylthiomethoxy)butyrate, 2-(methylthiomethoxymethy1)benzoate, 2,6-dichloro-4- methylphenoxyacetate, 2,6-dichloro-4- ( 1,1,3,3-tetramethylbuty1)phenoxyacetate, 2,4-bis( 1,1-dimethylpropyl)phenoxyacetate, chlorodiphenylacetate, isobutyrate, monosuccinoate, (E)-2-methyl-2-butenoate, o-(methoxyacyl)benzoate, a-naphthoate, nitrate, alkyl N,N,N',N'- tetramethylphosphorodiamidate, alkyl N-phenylcarbamate, borate, dimethylphosphinothioyl, alkyl2,4-dinitrophenylsulfenate, sulfate, methanesulfonate (mesylate), benzylsulfonate, and tosylate (Ts). In certain embodiments, an oxygen protecting group is silyl. In certain embodiments, an oxygen protecting group is t- butyldiphenylsilyl (TBDPS), t- butyldimethylsilyl (TBDMS), triisoproylsilyl (TIPS), triphenylsilyl (TPS), triethylsilyl (TES), trimethylsilyl (TMS), triisopropylsiloxymethyl (TOM), acetyl (Ac), benzoyl (Bz), allyl carbonate, 2,2,2-trichloroethyl carbonate (Troc), 2- trimethylsilylethyl carbonate, methoxymethyl (MOM), 1-ethoxyethyl (EE), 2-methyoxy-2-propyl (MOP), 2,2,2- trichloroethoxyethyl, 2-methoxyethoxymethyl (MEM), 2- trimethylsilylethoxymethyl(SEM), methylthiomethyl (MTM), tetrahydropyranyl (THP), tetrahydrofuranyl (THF), p- methoxyphenyl (PMP), triphenylmethyl (Tr), methoxytrityl (MMT), dimethoxytrityl (DMT), allyl, p-methoxybenzyl (PMB), t-butyl, benzyl (Bn), allyl, or pivaloyl (Piv).

[0087] In certain embodiments, the substituent present on a sulfur atom is a sulfur protecting group (also referred to as a "thiol protecting group"). Sulfur protecting groups include, but are not limited to, -Raa, -N(Rbb)2, -C(=O)SRaa, -C(=O)Raa, -CO2Raa, - C(=O)N(Rbb)2, -C(=NRbb)Raa, -C(=NRbb)ORaa, -C(=NRbb)N(Rbb)2, -S(=O)Raa, -SO2Raa, - Si(Raa)3, -P(Rcc)2, -P(Rcc)3+X–, -P(ORcc)2, -P(ORcc)3+X–, -P(=O)(Raa)2, -P(=O)(ORcc)2, and - P(=O)(N(Rbb)2)2, wherein Raa, Rbb, and Rccare as defined herein. Sulfur protecting groups are well known in the art and include those described in detail in Protecting Groups in Organic Synthesis, T. W. Greene and P. G. M. Wuts, 3rdedition, John Wiley & Sons, 1999, incorporated herein by reference. In certain embodiments, a sulfur protecting group is acetamidomethyl, t-Bu, 3-nitro-2-pyridine sulfenyl, 2-pyridine-sulfenyl, or triphenylmethyl.

[0088] A "counterion" as used herein can be an anionic counterion or a cationic counterion.

[0089] An “anionic counterion" is a negatively charged group associated with a positively charged group in order to maintain electronic neutrality. An anionic counterion may be monovalent (i.e., including one formal negative charge). An anionic counterion may also be multivalent (i.e., including more than one formal negative charge), such as divalent or trivalent. Exemplary anionic counterions include halide ions (e.g., F–, Cl–, Br–, I–), NO3–, ClO4–, OH–, H2PO4–, HCO3–, HSO4–, sulfonate ions (e.g., methansulfonate, trifluoromethanesulfonate, p- toluenesulfonate, benzenesulfonate, 10-camphor sulfonate, naphthalene-2-sulfonate, naphthalene-1-sulfonic acid-5-sulfonate, ethan-1-sulfonic acid-2- sulfonate, and the like), carboxylate ions (e.g., acetate, propanoate, benzoate, glycerate, lactate, tartrate, glycolate, gluconate, and the like), BF4–, PF4–, PF6–, AsF6–, SbF6–, B[3,5- (CF3)2C6H3] 4–, B(C6F5) 4–, BPh4–, Al(OC(CF3)3) 4–, and carborane anions (e.g., CB11H12–or (HCB11Me5Br6)–). Exemplary anionic counterions which may be multivalent include CO32–, HPO42–, PO43–, B4O72–, SO42–, S2O32–, carboxylate anions (e.g., tartrate, citrate, fumarate, maleate, malate, malonate, gluconate, succinate, glutarate, adipate, pimelate, suberate, azelate, sebacate, salicylate, phthalates, aspartate, glutamate, and the like), and carboranes.

[0090] A “cationic counterion" is a positively charged group associated with a negatively charged group in order to maintain electronic neutrality. A cationic counterionmay be monovalent (i.e., including one formal positive charge). A cationic counterion may also be multivalent (i.e., including more than one formal positive charge), such as divalent or trivalent. Exemplary cationic counterions include, for example, cations of metals, such as alkali metals and alkaline earth metals, as well as NH4+, NH3(C1-6alkyl)+, NH2(C1-6alkyl)2+, NH (C1-6alkyl)3+, and N+(C1–6alkyl)4 cations, where the C1-6alkyl can be optionally substituted as discussed above. Representative cations of alkali and alkaline earth metals include Li+, Na+, K+, Mg2+, and Ca2+, and the like. Formulation and Administration

[0091] Another embodiment of the invention is a composition comprising a compound of the invention (e.g, a compound of formula (I’) or (X”)), or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, adjuvant, or vehicle. In certain embodiments, a composition of the invention is formulated for administration to a patient in need of the composition. In some embodiments, a composition of the invention is formulated for oral, intravenous, subcutaneous, intraperitoneal or dermatological administration to a patient in need thereof.

[0092] As used herein, the term “subject” is intended to include human and non-human animals. Exemplary human subjects include a human patient having a disorder, e.g., a disorder described herein or a normal subject. The term “non-human animals” of the invention includes all vertebrates, e.g., non-mammals (such as chickens, amphibians, reptiles) and mammals, such as non-human primates, domesticated and / or agriculturally useful animals, e.g., sheep, cow, pig, etc., and companion animals (dog, cat, horse, etc.). In a particular embodiment the subject is a human, for example, a adult male or female or a male or female child.

[0093] As used herein, an amount of a compound described herein (e.g., a compound of formula (I’) or (X”)) that is effective to treat a disorder, or a “therapeutically effective amount” refers to an amount of the compound which is effective, upon single or multiple dose administration to a subject or a cell, in curing, alleviating, relieving or improving one or more symptoms of a disorder.

[0094] As used herein, an amount of a compound effective to prevent a disorder, or a “prophylactically effective amount” of the compound refers to an amount effective, uponsingle- or multiple-dose administration to the subject, in preventing or delaying the onset or recurrence of a disorder or one or more symptoms of the disorder.

[0095] For administration to human subjects, the total daily dose of the compounds of formula (I’) or (X”) is typically in the range of about 0.1mg to about 3000 mg depending on the route of administration. For example, oral administration can require a total daily dose of from about 1 mg to about 3000 mg, while an intravenous dose can only require a total daily dose of from about 0.1 mg to about 300 mg. The total daily dose may be administered in a single or divided doses (e.g., 2, 3, 4, 5 or 6 times per day at evenly space or randomly spaced intervals) or on an as needed basis. The typical daily dose can fall outside the ranges above based on the discretion of the physician or drug prescriber. Although these dosages are based on an average human subject having a mass of about 60 kg to 70 kg, the physician will be able to determine the appropriate dose for a subject (e.g., an infant) whose mass falls outside this weight range.

[0096] As used herein, the term “treat” or “treatment” is defined as the application or administration of a compound, alone or in combination with a second compound, to a subject, e.g., a patient, or application or administration of the compound to an isolated tissue or cell, e.g., cell line, from a subject, e.g., a patient, who has a disorder (e.g., a disorder as described herein), a symptom of a disorder, or a predisposition toward a disorder, in order to cure, heal, alleviate, relieve, alter, remedy, ameliorate, improve or affect the disorder, one or more symptoms of the disorder or the predisposition toward the disorder (e.g., to prevent at least one symptom of the disorder or to delay onset of at least one symptom of the disorder).

[0097] “Pharmaceutically or pharmacologically acceptable” includes molecular entities and compositions that do not produce an adverse, allergic or other untoward reaction when administered to an animal, or a human, as appropriate. For human administration, preparations should meet sterility, pyrogenicity, and general safety and purity standards, as required by FDA Office of Biologics standards.

[0098] As used herein, the term “pharmaceutically acceptable salt” refers to those salts which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of humans and lower animals without undue toxicity, irritation, allergic response and the like, and are commensurate with a reasonable benefit / risk ratio. Pharmaceutically acceptable salts are well known in the art. For example, S. M. Berge et al., describe pharmaceutically acceptable salts in detail in J. Pharmaceutical Sciences, 1977, 66, 1–19, therelevant teachings of which are incorporated herein by reference in their entirety. Pharmaceutically acceptable salts of the compounds of this invention include salts derived from suitable inorganic and organic acids and bases that are compatible with the treatment of patients.

[0099] Examples of pharmaceutically acceptable, nontoxic acid addition salts are salts of an amino group formed with inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid or with organic acids such as acetic acid, oxalic acid, maleic acid, tartaric acid, citric acid, succinic acid or malonic acid or by using other methods used in the art such as ion exchange. Other pharmaceutically acceptable acid addition salts include adipate, alginate, ascorbate, aspartate, benzenesulfonate, benzoate, bisulfate, borate, butyrate, camphorate, camphorsulfonate, citrate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptonate, glycerophosphate, gluconate, hemisulfate, heptanoate, hexanoate, hydroiodide, 2–hydroxy– ethanesulfonate, lactobionate, lactate, laurate, lauryl sulfate, malate, maleate, malonate, methanesulfonate, 2–naphthalenesulfonate, nicotinate, nitrate, oleate, oxalate, palmitate, pamoate, pectinate, persulfate, 3–phenylpropionate, phosphate, pivalate, propionate, stearate, succinate, sulfate, tartrate, thiocyanate, p–toluenesulfonate, undecanoate, valerate salts, and the like.

[0100] In some embodiments, exemplary inorganic acids which form suitable salts include, but are not limited thereto, hydrochloric, hydrobromic, sulfuric and phosphoric acid and acid metal salts such as sodium monohydrogen orthophosphate and potassium hydrogen sulfate. Illustrative organic acids which form suitable salts include the mono-, di- and tricarboxylic acids. Illustrative of such acids are, for example, acetic, glycolic, lactic, pyruvic, malonic, succinic, glutaric, fumaric, malic, tartaric, citric, ascorbic, maleic, hydroxymaleic, benzoic, hydroxybenzoic, phenylacetic, cinnamic, salicylic, 2- phenoxybenzoic, p-toluenesulfonic acid and other sulfonic acids such as methanesulfonic acid and 2-hydroxyethanesulfonic acid. Either the mono- or di-acid salts can be formed, and such salts can exist in either a hydrated, solvated or substantially anhydrous form. In general, the acid addition salts of these compounds are more soluble in water and various hydrophilic organic solvents, and generally demonstrate higher melting points in comparison to their free base forms.

[0101] In some embodiments, acid addition salts of the compounds of formula I are most suitably formed from pharmaceutically acceptable acids, and include, for example, those formed with inorganic acids, e.g., hydrochloric, sulfuric or phosphoric acids and organic acids e.g. succinic, maleic, acetic or fumaric acid.

[0102] Other non-pharmaceutically acceptable salts, e.g., oxalates can be used, for example, in the isolation of compounds of formula I for laboratory use, or for subsequent conversion to a pharmaceutically acceptable acid addition salt. Also included within the scope of the invention are base addition salts (such as sodium, potassium and ammonium salts), solvates and hydrates of compounds of the invention. The conversion of a given compound salt to a desired compound salt is achieved by applying standard techniques, well known to one skilled in the art.

[0103] A “pharmaceutically acceptable basic addition salt” is any non-toxic organic or inorganic base addition salt of the acid compounds represented by formula I, or any of its intermediates. Illustrative inorganic bases which form suitable salts include, but are not limited thereto, lithium, sodium, potassium, calcium, magnesium or barium hydroxides. Illustrative organic bases which form suitable salts include aliphatic, alicyclic or aromatic organic amines such as methylamine, trimethylamine and picoline or ammonia. The selection of the appropriate salt may be important so that an ester functionality, if any, elsewhere in the molecule is not hydrolyzed. The selection criteria for the appropriate salt will be known to one skilled in the art.

[0104] Salts derived from appropriate bases include alkali metal, alkaline earth metal, ammonium and N+(C1–4alkyl)4salts. Representative alkali or alkaline earth metal salts include sodium, lithium, potassium, calcium, magnesium, and the like. Further pharmaceutically acceptable salts include, when appropriate, nontoxic ammonium, quaternary ammonium, and amine cations formed using counterions such as halide, hydroxide, carboxyl, sulfate, phosphate, nitrate, lower alkyl sulfonate and aryl sulfonate.

[0105] The phrase “pharmaceutically acceptable carrier, adjuvant, or vehicle” refers to a non-toxic carrier, adjuvant, or vehicle that does not destroy the pharmacological activity of the compound with which it is formulated and is nontoxic when administered in doses sufficient to deliver a therapeutic amount of the compound. Pharmaceutically acceptable carriers, adjuvants or vehicles that may be used in the compositions of this invention include, but are not limited to, ion exchangers, alumina, aluminum stearate, lecithin, serumproteins, such as human serum albumin, buffer substances such as phosphates, glycine, sorbic acid, potassium sorbate, partial glyceride mixtures of saturated vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salts, colloidal silica, magnesium trisilicate, polyvinyl pyrrolidone, cellulose-based substances, polyethylene glycol, sodium carboxymethylcellulose, polyacrylates, waxes, polyethylene-polyoxypropylene-block polymers, polyethylene glycol and wool fat.

[0106] Compositions of the present invention may be administered orally, parenterally (including subcutaneous, intramuscular, intravenous and intradermal), by inhalation spray, topically, rectally, nasally, buccally, vaginally or via an implanted reservoir. In some embodiments, provided compounds or compositions are administrable intravenously and / or intraperitoneally.

[0107] The term “parenteral,” as used herein, includes subcutaneous, intracutaneous, intravenous, intramuscular, intraocular, intravitreal, intra-articular, intra-arterial, intra- synovial, intrasternal, intrathecal, intralesional, intrahepatic, intraperitoneal intralesional and intracranial injection or infusion techniques. Preferably, the compositions are administered orally, subcutaneously, intraperitoneally or intravenously.

[0108] Pharmaceutically acceptable compositions of this invention can be orally administered in any orally acceptable dosage form including, but not limited to, capsules, tablets, aqueous suspensions, dispersions and solutions. In the case of tablets for oral use, carriers commonly used include lactose and corn starch. Lubricating agents, such as magnesium stearate, are also typically added. For oral administration in a capsule form, useful diluents include lactose and dried cornstarch. When aqueous suspensions and / or emulsions are required for oral use, the active ingredient can be suspended or dissolved in an oily phase and combined with emulsifying and / or suspending agents. If desired, certain sweetening, flavoring or coloring agents may also be added.

[0109] In some embodiments, an oral formulation is formulated for immediate release or sustained / delayed release.

[0110] Solid dosage forms for oral administration include capsules, tablets, pills, powders, and granules. In such solid dosage forms, the active compound is mixed with at least one inert, pharmaceutically acceptable excipient or carrier such as sodium citrate or dicalcium phosphate and / or a) fillers or extenders such as starches, lactose, sucrose, glucose,mannitol, and silicic acid, b) binders, such as carboxymethylcellulose, alginates, gelatin, polyvinylpyrrolidinone, sucrose, and acacia, c) humectants such as glycerol, d) disintegrating agents such as agar--agar, calcium carbonate, potato or tapioca starch, alginic acid, certain silicates, and sodium carbonate, e) solution retarding agents such as paraffin, f) absorption accelerators such as quaternary ammonium salts, g) wetting agents, such as acetyl alcohol and glycerol monostearate, h) absorbents such as kaolin and bentonite clay, and i) lubricants such as talc, calcium stearate, magnesium stearate, solid polyethylene glycols, sodium lauryl sulfate, and mixtures thereof. In the case of capsules, tablets and pills, the dosage form may also comprise buffering agents.

[0111] Compositions suitable for buccal or sublingual administration include tablets, lozenges and pastilles, wherein the active ingredient is formulated with a carrier such as sugar and acacia, tragacanth, or gelatin and glycerin.

[0112] Solid compositions of a similar type may also be employed as fillers in soft and hard-filled gelatin capsules using excipients such as lactose or milk sugar, as well as high molecular weight polyethylene glycols and the like. The solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings and other coatings well known in the pharmaceutical formulating art. They may optionally contain opacifying agents and can also be of a composition that they release the active ingredient(s) only, or preferentially, in a certain part of the intestinal tract, optionally, in a delayed manner. Examples of embedding compositions that can be used include polymeric substances and waxes.

[0113] A compound of the invention can also be in micro-encapsulated form with one or more excipients, as noted above. In such solid dosage forms, the compound of the invention can be admixed with at least one inert diluent such as sucrose, lactose or starch. Such dosage forms can also comprise, as is normal practice, additional substances other than inert diluents, e.g., tableting lubricants and other tableting aids such a magnesium stearate and microcrystalline cellulose.

[0114] Compositions for oral administration may be designed to protect the active ingredient against degradation as it passes through the alimentary tract, for example, by an outer coating of the formulation on a tablet or capsule.

[0115] In another embodiment, a compound of the invention can be provided in an extended (or “delayed” or “sustained”) release composition. This delayed-releasecomposition comprises a compound of the invention in combination with a delayed-release component. Such a composition allows targeted release of a provided compound into the lower gastrointestinal tract, for example, into the small intestine, the large intestine, the colon and / or the rectum. In certain embodiments, the delayed-release composition comprising a compound of the invention further comprises an enteric or pH-dependent coating, such as cellulose acetate phthalates and other phthalates (e.g., polyvinyl acetate phthalate, methacrylates (Eudragits)). Alternatively, the delayed-release composition provides controlled release to the small intestine and / or colon by the provision of pH sensitive methacrylate coatings, pH sensitive polymeric microspheres, or polymers which undergo degradation by hydrolysis. The delayed-release composition can be formulated with hydrophobic or gelling excipients or coatings. Colonic delivery can further be provided by coatings which are digested by bacterial enzymes such as amylose or pectin, by pH dependent polymers, by hydrogel plugs swelling with time (Pulsincap), by time-dependent hydrogel coatings and / or by acrylic acid linked to azoaromatic bonds coatings.

[0116] In certain embodiments, the delayed-release composition of the present invention comprises hypromellose, microcrystalline cellulose, and a lubricant. The mixture of a compound of the invention, hypromellose and microcrystalline cellulose can be formulated into a tablet or capsule for oral administration. In certain embodiments, the mixture is granulated and pressed into tablets.

[0117] Alternatively, pharmaceutically acceptable compositions of this invention can be administered in the form of suppositories for rectal administration. These can be prepared by mixing the compound of the invention with a suitable non-irritating excipient that is solid at room temperature but liquid at rectal temperature and, therefore, will melt in the rectum to release the drug. Such materials include cocoa butter, beeswax and polyethylene glycols.

[0118] Pharmaceutically acceptable compositions of this invention can also be administered topically, especially when the target of treatment includes areas or organs readily accessible by topical application, including diseases of the eye, the skin, or the lower intestinal tract. Suitable topical formulations are readily prepared for each of these areas or organs.

[0119] Topical application for the lower intestinal tract can be effected in a rectal suppository formulation (see above) or in a suitable enema formulation. Topically- transdermal patches can also be used.

[0120] For other topical applications, the pharmaceutically acceptable compositions of the invention can be formulated in a suitable ointment containing the active component suspended or dissolved in one or more carriers. Carriers for topical administration of compounds of this invention include, but are not limited to, mineral oil, liquid petrolatum, white petrolatum, propylene glycol, polyoxyethylene, polyoxypropylene compound, emulsifying wax and water and penetration enhancers. Alternatively, pharmaceutically acceptable compositions of the invention can be formulated in a suitable lotion or cream containing the active component suspended or dissolved in one or more pharmaceutically acceptable carriers. Alternatively, the pharmaceutical composition can be formulated with a suitable lotion or cream containing the active compound suspended or dissolved in a carrier with suitable emulsifying agents. In some embodiments, suitable carriers include, but are not limited to, mineral oil, sorbitan monostearate, polysorbate 60, cetyl esters wax, cetearyl alcohol, 2-octyldodecanol, benzyl alcohol and water. In other embodiments, suitable carriers include, but are not limited to, mineral oil, sorbitan monostearate, polysorbate 60, cetyl esters wax, cetearyl alcohol, 2-octyldodecanol, benzyl alcohol and water and penetration enhancers.

[0121] For ophthalmic use, pharmaceutically acceptable compositions of the invention can be formulated as micronized suspensions in isotonic, pH adjusted sterile saline, or, preferably, as solutions in isotonic, pH adjusted sterile saline, either with or without a preservative such as benzylalkonium chloride. Alternatively, for ophthalmic uses, the pharmaceutically acceptable compositions can be formulated in an ointment such as petrolatum.

[0122] Pharmaceutically acceptable compositions of this invention can also be administered by nasal aerosol or inhalation. Such compositions are prepared according to techniques well-known in the art of pharmaceutical formulation and can be prepared as solutions in saline, employing benzyl alcohol or other suitable preservatives, absorption promoters to enhance bioavailability, fluorocarbons, and / or other conventional solubilizing or dispersing agents.

[0123] In some embodiments, pharmaceutically acceptable compositions of this invention are formulated for oral administration.

[0124] In some embodiments, pharmaceutically acceptable compositions of this invention are formulated for intravenous administration.

[0125] In some embodiments, pharmaceutically acceptable compositions of this invention are formulated for topical administration.

[0126] The amount of compounds of the present invention that can be combined with the carrier materials to produce a composition in a single dosage form will vary depending upon the host treated, the particular mode of administration and the activity of the compound employed. Preferably, compositions should be formulated so that a dosage of between 0.01 - 100 mg / kg body weight / day of the inhibitor can be administered to a patient receiving the composition.

[0127] It should also be understood that a specific dosage and treatment regimen for any particular patient will depend upon a variety of factors, including the activity of the specific compound employed, the age, body weight, general health, sex, diet, time of administration, rate of excretion, drug combination, the judgment of the treating physician and the severity of the particular disease being treated. The amount of a compound of the present invention in the composition will also depend upon the particular compound in the composition.

[0128] Other pharmaceutically acceptable carriers, adjuvants and vehicles that can be used in the pharmaceutical compositions of this invention include, but are not limited to, ion exchangers, alumina, aluminum stearate, lecithin, self-emulsifying drug delivery systems (SEDDS) such as d-D-tocopherol polyethylene glycol 1000 succinate, surfactants used in pharmaceutical dosage forms such as Tweens or other similar polymeric delivery matrices, serum proteins, such as human serum albumin, buffer substances such as phosphates, glycine, sorbic acid, potassium sorbate, partial glyceride mixtures of saturated vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salts, colloidal silica, magnesium trisilicate, polyvinyl pyrrolidone, cellulose-based substances, polyethylene glycol, sodium carboxymethylcellulose, polyacrylates, waxes, polyethylene-polyoxypropylene-block polymers, polyethylene glycol and wool fat. Cyclodextrins such asD-, E-, and J-cyclodextrin, or chemically modified derivatives such ashydroxyalkylcyclodextrins, including 2- and 3-hydroxypropyl-^E-cyclodextrins, or other solubilized derivatives can also be advantageously used to enhance delivery of compounds described herein.

[0129] The pharmaceutical compositions of this invention are preferably administered by oral administration or by injection. The pharmaceutical compositions of this inventioncan contain any conventional non-toxic pharmaceutically-acceptable carriers, adjuvants or vehicles. In some cases, the pH of the formulation can be adjusted with pharmaceutically acceptable acids, bases or buffers to enhance the stability of the formulated compound or its delivery form.

[0130] The pharmaceutical compositions can be in the form of a sterile injectable preparation, for example, as a sterile injectable aqueous or oleaginous suspension. This suspension can be formulated according to techniques known in the art using suitable dispersing or wetting agents (such as, for example, Tween 80) and suspending agents. The sterile injectable preparation can also be a sterile injectable solution or suspension in a non- toxic parenterally acceptable diluent or solvent, for example, as a solution in 1,3-butanediol. Among the acceptable vehicles and solvents that can be employed are mannitol, water, Ringer’s solution and isotonic sodium chloride solution. In addition, sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose, any bland fixed oil can be employed including synthetic mono- or diglycerides. Fatty acids, such as oleic acid and its glyceride derivatives are useful in the preparation of injectables, as are natural pharmaceutically-acceptable oils, such as olive oil or castor oil, especially in their polyoxyethylated versions. These oil solutions or suspensions can also contain a long-chain alcohol diluent or dispersant, or carboxymethyl cellulose or similar dispersing agents which are commonly used in the formulation of pharmaceutically acceptable dosage forms such as emulsions and or suspensions. Other commonly used surfactants such as Tweens or Spans and / or other similar emulsifying agents or bioavailability enhancers which are commonly used in the manufacture of pharmaceutically acceptable solid, liquid, or other dosage forms can also be used for the purposes of formulation.

[0131] When the compositions of this invention comprise a combination of a compound of the formulae described herein and one or more additional therapeutic or prophylactic agents, both the compound and the additional agent should be present at dosage levels of between about 1 to 100%, and more preferably between about 5 to 95% of the dosage normally administered in a monotherapy regimen. The additional agent(s) can be administered separately, as part of a multiple dose regimen, from the compounds of this invention. Alternatively, the additional agent(s) can be part of a single dosage form, mixed together with the compound of this invention in a single composition.

[0132] The compounds described herein can, for example, be administered by injection, intravenously, intraarterially, intraocularly, intravitreally, subdermally, orally, buccally, nasally, transmucosally, topically, in an ophthalmic preparation, or by inhalation, with a dosage ranging from about 0.5 to about 100 mg / kg of body weight or, alternatively, in a dosage ranging from about 1 mg to about 1000 mg / dose, every 4 to 120 hours, or according to the requirements of the particular drug. The methods herein contemplate administration of an effective amount of a compound of the invention, or a composition thereof, to achieve the desired or stated effect. Typically, the pharmaceutical compositions of this invention will be administered from about 1 to about 6 times per day or, alternatively, as a continuous infusion. Such administration can be used as a chronic or acute therapy. The amount of active ingredient that can be combined with a carrier material to produce a single dosage form will vary depending upon the host treated and the particular mode of administration. A typical preparation will contain from about 5% to about 95% active compound (w / w). Alternatively, a preparation can contain from about 20% to about 80% active compound.

[0133] Doses lower or higher than those recited above may be required. Specific dosage and treatment regimens for any particular patient will depend upon a variety of factors, including the activity of the specific compound employed, the age, body weight, general health status, sex, diet, time of administration, rate of excretion, drug combination, the severity and course of the disease, condition or symptoms, the patient’s disposition to the disease, condition or symptoms, and the judgment of the treating physician.

[0134] Upon improvement of a patient’s condition, a maintenance dose of a compound, composition or combination of this invention can be administered, if necessary. Subsequently, the dosage or frequency of administration, or both, can be reduced, as a function of the symptoms, to a level at which the improved condition is retained when the symptoms have been alleviated to the desired level. Patients may, however, require intermittent treatment on a long-term basis upon recurrence of disease symptoms. Uses of Compounds and Pharmaceutically Acceptable Compositions

[0135] As used herein, “RIPK2-mediated” disease, disorder or condition means any disease or other deleterious condition in which RIPK2 plays a role. Accordingly, another embodiment of the present invention relates to treating, for example, lessening the severity of, a RIPK2-mediated disorder or condition. RIPK2-mediated disorders includeinflammatory disorders, autoimmune disorders, granulomatous diseases, neurodegenerative disorders, and cancer. Specific examples of RIPK2-mediated disorders are set forth in detail below. Compounds provided by this invention are also useful as tools, for example, to study RIPK2 modulation in biological and pathological phenomena, to study cancer or for the identification and / or comparative evaluation of RIPK2 modulators. Accordingly, in particular embodiments, the present invention provides a method for studying an effect of a compound described herein, or a salt or composition thereof, on a sample, the method comprising contacting a sample comprising cells in culture or RIPK2 with the compound, or the salt or composition thereof; and measuring the effect of the compound, or salt or composition thereof, on the cells or RIPK2. For example, the compounds described herein can be used as a standard or control substance in binding assays (e.g., competitive binding assays) to identify or evaluate potential RIPK2 modulators or as a discovery tool to probe the role of RIPK2 modulation in certain disorders or conditions, such as those described herein, including inflammatory disorders, autoimmune disorders, and other RIPK2-mediated disorders or conditions.

[0136] In a certain embodiment, the present invention relates to a method of treating a disease or disorder, comprising administering to a subject in need thereof a compound of formula (I’) or (X”) as described herein or a pharmaceutically acceptable salt thereof or a pharmaceutical composition described herein, wherein the disease or disorder is selected from inflammatory diseases, autoimmune diseases, granulomatous diseases, cancer and neurodegenerative diseases.

[0137] In some embodiments, compounds and compositions described herein are useful for treating inflammatory disorders in a subject in need thereof. Thus, in certain embodiments, the present invention provides a method for treating an inflammatory disorder, comprising the step of administering to a subject in need thereof a compound of the present invention (e.g., a Compound of formula (I’) or (X”)), or pharmaceutically acceptable salt or composition thereof.

[0138] In certain aspects, the inflammatory disease can include, but is not limited to uveitis, interleukin-1 converting enzyme fever syndrome, dermatitis, acute lung injury, type 2 diabetes mellitus, arthritis, inflammatory bowel disease (IBD), ischemia reperfusion injuryin a solid organ transplant, sepsis, liver disease, allergic disease, and graft versus host disease.

[0139] In certain instances, the inflammatory disease is an IBD. For example, the IBD is selected from ulcerative colitis, Crohn's disease, early-onset IBD, and extraintestinal IBD.

[0140] Alternatively, the inflammatory disease can include but is not limited to rheumatoid arthritis, inflammatory arthritis, peritonitis, ischemia reperfusion injury in kidney transplant, non-alcohol steatohepatitis, alcohol steatohepatitis, insulin-resistant type 2 diabetes, allergic rhinitis, asthma, atopic dermatitis, Sjogren’s syndrome, ankylosing spondylitis, pemphigus vulgaris, idiopathic plasmacytic lymphadenopathy, atherosclerosis, myocardial infarction, thrombosis, a-synucleinopathy, Parkinson’s disease, dementia with Lewy body, multiple system atrophy, Alzheimer’s disease, amyotrophic lateral sclerosis, and chronic obstructive pulmonary disease.

[0141] In a particular embodiment, the disease or disorder is an autoimmune disease. For example, the autoimmune disease can include, but is not limited to systemic lupus erythematosus, lupus nephritis, psoriasis, diabetes mellitus type 1, Goodpasture’s syndrome, Guillain-Barre Syndrome, Hashimoto’s disease, Grave’s disease, immune thrombocytopenic purpura, and multiple sclerosis (including relapsing-remitting MS, secondary -progressive MS, primary-progressive MS, progressive-relapsing MS).

[0142] In a further embodiment, the disease or disorder is a granulomatous disease. For example, the granulomatous disease is selected from sarcoidosis, Blau syndrome, Wegner’s granulomatosis, Behcet’s disease, and interstitial pulmonary disease.

[0143] In another embodiment, the disease or disorder is a neurodegenerative disorder. For example, the neurological disorder is selected from Alzheimer’s disease, amyotrophic lateral sclerosis (ALS / Lou Gehrig’s Disease), Parkinson’s disease, multiple sclerosis, diabetic neurophathy, polyglutamine (polyQ) diseases, stroke, Fahr disease, Menke’s disease, Wilson’s disease, cerebral ischemia, a prion disorder, dementia, corticobasal degeneration, progressive supranuclear palsy, spinocerebellar atrophies, brain injury and spinal cord injury.

[0144] In yet another embodiment, the disease or disorder is cancer. For example, the cancer is selected from a hematological cancer such as leukemia (e.g., acute myeloid leukemia, chronic myelogenous leukemia), lymphoma (e.g., non-Hodgkin’s Lymphoma, Hodgkin’s Lymphoma, diffuse large B-cell lymphoma), myeloma (e.g., multiple myeloma),myelodysplastic syndrome, myelofibrosis), breast cancer, brain cancer (e.g., glioblastoma), colorectal cancer, esophageal cancer, head and neck cancer, melanoma, pancreatic cancer, prostate cancer, stomach cancer, bone cancer, ovarian cancer, uterine cancer, renal cancer, liver cancer and lung cancer. The cancer can be a soft tissue cancer, including but not limited to, a sarcoma selected from the group consisting of a fibrosarcoma and liposarcoma (e.g., a dedifferentiated liposarcoma and a pleomorphic liposarcoma)

[0145] The compounds and compositions described herein can also be administered to cells in culture, e.g., in vitro or ex vivo, or to a subject, e.g., in vivo, to treat, prevent, and / or diagnose a variety of disorders, including those described herein below.

[0146] The compounds of this invention can be used alone or in combination with other therapeuctic agents. Combination therapies according to the present invention comprise the administration of at least one compound of the invention, and the use of at least one other therapeutically active agent. For example, combination therapies according to the present invention comprise the administration of at least one compound of the invention and at least one other therapeutically active agent to a subject in need of treatment for a given disease or disorder, for example, the inflammatory diseases, autoimmune diseases, granulomatous diseases, cancers and neurodegenerative diseases described herein.

[0147] The compounds of the invention and the other therapeutically active agent can be administered together in a single pharmaceutical composition or separately and, when administered separately this can occur simultaneously or sequentially in any order. The amounts of the compounds of the invention and other therapeutically active agents and the relative timings of administration can be selected in order to achieve the desired combined therapeutic effect. Thus in a further aspect, there is provided a combination comprising a compound of the invention together with one or more other therapeutically active agents.

[0148] In certain embodiments, the invention relates to a method of treating a subject suffering from an inflammatory disorder as described herein comprising administering to the subject an effective amount of a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof and an anti-inflammatory agent and / or an anti-TNF agent.

[0149] In a particular embodiment, the invention relates to a method of treating a subject suffering from Crohn's disease as described herein comprising administering to the subject an effective amount of a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof and optionally an anti-inflammatory agent and / or an anti-TNF agent.

[0150] In another embodiment, the invention relates to a method of treating a subject suffering from an autoimmune disorder as described herein comprising administering to the subject an effective amount of a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof and an autoimmune agent such as, but not limited to, an anti-TNF agent.

[0151] Suitable anti-inflammatory / autoimmune agents include 5-aminosalicyclic acid a n d mesalamine preparations, sulfasalazine, hydroxycloroquine, thiopurines (azathioprin, mercaptopurin), methotrexate, cyclophosphamide, cyclosporine, calcineurin inhibitors (cyclosporine, pimecrolimus, tacrolimus), mycophenolic acid (CellCept®), mTOR inhibitors (temsirolimus, everolimus), JAK inhibitors (tofacitinib (Xeljan®)), Syk inhibitors (fostamatinib), corticosteroids, particularly low-dose corticosteroids (such as prednisone (Deltasone®) and bundesonide) and anti-inflammatory biologics such as anti- IL6R mAbs (Actemra® (tocilizumab)), anti-IL6 biologics, anti-IL I (anakinra (Kineret®), canakinumab (Ilaris®), rilonacept (Arcalyst®)), anti-or IL12 or and IL23 biologics (ustekinumab (Stelara®)), anti-IL 17 biologics (secukinumab), anti-CD22 (epratuzumab), anti-integrin agents (natalizumab (Tysabri®), vedolizumab (Entyvio®)), anti-IFNa (sifalimumab), anti-CD20 mAbs (rituximab (Rituxan®) and ofatumumab (Arzerra®)), and other agents, such as abatacept (Orencia®), anakinra (Kineret®), canakinumab (Ilaris®), rilonacept (Arcalyst®), secukinumab, epratuzumab, sifalimumab, and belimumab (Benlysta®), CD4 biologics and other cytokine inhibitors or biologics to T- cell or B-cell receptors or interleukins.

[0152] Examples of suitable anti-TNF agents include the anti-TNF biologics such as Enbrel® (etanecerpt), Humira® (adalimumab), Remicade® (infliximab), Cimzia® (certolizumab), and Simponi® (golimumab).

[0153] In a particular embodiment, the invention relates to a method of treating a subject suffering from a neurodegenerative disease as described herein such as Parkinson’s comprising administering to the subject an effective amount of a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof and optionally one or more additional therapeutic agents typically used in the treatment of Parkinson’s. Such additional therapeutic agents include, but are not limited to levodopa, carbodopa or a combination thereof, pramipexole, ropinirole, rotigotine, selegiline, rasagiline, entacapone, tolcapone,benztropine, trihexyphenidyl, or amantadine, or a pharmaceutically acceptable salt thereof.

[0154] In a particular embodiment, the invention relates to a method of treating a subject suffering from a neurodegenerative disease as described herein such as Alzheimer’s comprising administering to the subject an effective amount of a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof and optionally one or more additional therapeutic agents typically used in the treatment of Alzheimer’s disease. Such additional therapeutic agents include, but are not limited to donepezil, galantamine, memantine, rivastigmine, anti-Abeta (amyloid beta) therapies including aducanumab, crenezumab, solanezumab, and gantenerumab, small molecule inhibitors of BACEl including verubecestat, AZD3293 (LY3314814), elenbecestat (E2609), LY2886721, PF- 05297909, JNJ-54861911, TAK-070, VTP-37948, HPP854, CTS-21166, or anti-tau therapies such as LMTM (leuco-methylthioninium-bis (hydromethanesulfonate)), or a pharmaceutically acceptable salt thereof.

[0155] In certain embodiments, the invention relates to a method of treating a subject with cancer comprising administering to the subject an effective amount of a compound represented by Formuls (I) or a pharmaceutically acceptable salt thereof and an anti-cancer agent. An "anti-cancer agent" is a compound, which when administered in an effective amount to a subject with cancer, can achieve, partially or substantially, one or more of the following: arresting the growth, reducing the extent of a cancer (e.g., reducing size of a tumor), inhibiting the growth rate of a cancer, and ameliorating or improving a clinical symptom or indicator associated with a cancer (such as tissue or serum components) or increasing longevity of the subject.

[0156] The anti-cancer agents suitable for use in the methods described herein include any anti-cancer agents that have been approved for the treatment of cancer. In one embodiment, the anti-cancer agent includes, but is not limited to, a targeted antibody, an angiogenesis inhibitor, an alkylating agent, an antimetabolite, a vinca alkaloid, a taxane, a podophyllotoxin, a topoisomerase inhibitor, a hormonal antineoplastic agent and other antineoplastic agents.

[0157] In one embodiment, the anti-cancer agents that can be used in methods described herein include, but are not limited to, paclitaxel, docetaxel, 5-fluorouracil, trastuzumab, lapatinib, bevacizumab, letrozole, goserelin, tamoxifen, cetuximab,panitumumab, gemcitabine, capecitabine, irinotecan, oxaliplatin, carboplatin, cisplatin, doxorubicin, epirubicin, cyclophosphamide, methotrexate, vinblastine, vincristine, melphalan, cytarabine, etoposide, daunorubicin, bleomycin, mitomycin and adriamycin and a combination thereof.

[0158] In one embodiment, the anti-cancer agent and the compound represented by Structural Formula (I’) o r (X”) are administered contemporaneously. When administered contemporaneously, the anti-cancer agent and the compound can be administered in the same formulation or in different formulations. Alternatively, the compound and the additional anti-cancer agent can be administered separately at different times.

[0159] In a first embodiment, the present invention relates a compound represented by structural formula (I’) or a pharmaceutically acceptable salt thereof:G is selected from the following moieties oriented in either direction unless indicated otherwise: ,, where * indicates the point of attachment to X; U1, U2, U3, and U4is each independently CH or N, provided that at least one and no more than two of U1, U2, U3, and U4are N; A1is CH, C(C1-3alkyl), or N; A2and A3is each independently CH or N; X is a moiety represented by one of the following structural formulas:A4is N or CR8; A5, A6, and Q is each independently CH or N; Y is -NHC(O)-*, -C(O)NH-*, or -C(O)(C1-3alkylene)-*, where * indicates the point of attachment to R3; R1, R1a, and R2is each independently selected from H, halogen, C1-6alkyl, C1-6haloalkyl, and C1-6alkoxy; R3is selected from C1-6alkyl, C1-6haloalkyl, C1-6alkoxy, C3-6 cycloalkyl, 4- to 10-membered heterocyclyl, 5- to 12-membered heteroaryl, or NR9R10; R4is selected from halogen, C3-6cycloalkyl, C1-6alkoxy, 5- to 12-membered heteroaryl, C(=O)NR11R12,S(O)2R13, and Z2R13a; Q1is N or CR5; R5and R6is each independently selected from H, halogen, and C1-6alkyl; RGis selected from H, C1-6alkyl, and C1-6haloalkyl; Z1is selected from O, NH, N(C1-6alkyl), NH(C1-3alkylene), (C1-3alkylene)NH, C(O), C(O)NH, NHC(O), NHS(O)2, S(O)2NH, C1-3alkylene, and a bond; Z2is selected from C1-3alkylene, NH, and bond; R7is selected from C1-6alkyl, C3-6 cycloalkyl, 4- to 10-membered heterocyclyl, 5-12 membered heteroaryl, (C1-6alkylene)NR17R18; R8is selected from H, halogen, C1-6haloalkyl, 4- to 10-membered heterocyclyl, and C1-6alkoxy; R9and R10is each independently C1-6alkyl; R11and R12is each independently H or C1-6alkyl, or R11and R12taken together with the nitrogen atom to which they are attached form 4- to 10- membered heterocyclyl; and R13and R13ais each independently 4- to 10-membered heterocyclyl or NR14R15; R14and R15is each independently C1-6alkyl; and R17and R18is each independently C1-6alkyl or H;wherein each C1-6alkyl, C1-3alkyl, C1-3alkylene, C1-6alkylene, C3-6cycloalkyl, C1-6alkoxy, 5-12 membered heteroaryl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10- membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl, C3-6cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a, R14b, R15a, R18a, R18b, R18c, R20, R20a, R24, R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21, R21b, R22, R22b, R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl.

[0160] For example, in certain embodiments the present invention relates to a compound represented by structural formula (I) or a pharmaceutically acceptable salt thereof:wherein: A1is CH, C(C1-3alkyl), or N, A2and A3is each independently CH or N, X is a moiety represented by one of the following structural formulas:A4is N or CR8; A5, A6, and Q is each independently CH or N; Y is -NHC(O)-*, -C(O)NH-*, or -C(O)(C1-3alkylene)-*, where * indicates the point of attachment to R3; R1, R1a, and R2is each independently selected from H, halogen, C1-6alkyl, C1-6haloalkyl, and C1-6alkoxy; R3is selected from C1-6alkyl, C1-6haloalkyl, C1-6alkoxy, C3-6 cycloalkyl, 4- to 10-membered heterocyclyl, 5- to 12-membered heteroaryl, or NR9R10; R4is selected from halogen, C3-6cycloalkyl, C1-6alkoxy, 5- to 12-membered heteroaryl, C(=O)NR11R12, S(O)2R13, and Z2R13a; Q1is N or CR5; R5and R6is each independently selected from H, halogen, and C1-6alkyl; Z1is selected from O, NH, N(C1-6alkyl), NH(C1-3alkylene), (C1-3alkylene)NH, C(O), C(O)NH, NHC(O), NHS(O)2, S(O)2NH, C1-3alkylene, and a bond; Z2is selected from C1-3alkylene, NH, and bond;R7is selected from C1-6alkyl, C3-6cycloalkyl, 4- to 10-membered heterocyclyl, 5-12 membered heteroaryl, (C1-6alkylene)NR17R18; R8is selected from H, halogen, C1-6haloalkyl, 4- to 10-membered heterocyclyl, and C1-6alkoxy; R9and R10is each independently C1-6alkyl; R11and R12is each independently H or C1-6alkyl, or R11and R12taken together with the nitrogen atom to which they are attached form 4- to 10- membered heterocyclyl; and R13and R13ais each independently 4- to 10-membered heterocyclyl or NR14R15; R14and R15is each independently C1-6alkyl; and R17and R18is each independently C1-6alkyl or H; wherein each C1-6alkyl, C1-3alkyl, C1-3alkylene, C1-6alkylene, C3-6 cycloalkyl, C1-6alkoxy, 5-12 membered heteroaryl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5, such as 1, 2, 3, 4, or 5, substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl, C3-6cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a,R14b,R15a,R18a,R18b, R18c, R20,R20a,R24,R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl;R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21,R21b,R22,R22b,R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl.

[0161] In a first aspect of the first embodiment, X is a moiety represented by one of the following structural formulas:example, X is a moiety represented by one of the following structural formulas:example, X is a moiety represented by the following structural formula:

[0162] In a second aspect of the first embodiment, A4is N. Alternatively, A4is CR8. The remainder of features and example features of the second aspect is as described above with respect to the first aspect of the first embodiment.

[0163] In a third aspect of the first embodiment, R8is selected from H, optionally substituted C1-6haloalkyl, and optionally substituted C1-6alkoxy. For example, R8is H. Alternatively, R8is optionally substituted C1-6alkoxy is, such as methoxy. Alternatively yet, R8is optionally substituted C1-6haloalkyl, such as trifluoromethyl or difluoromethyl. The remainder of features and example features of the third aspect is as described above with respect to the first through second aspects of the first embodiment.

[0001] In a fourth aspect of the first embodiment, R4is selected from halogen, optionally substituted C3-6 cycloalkyl, C(=O)NR11R12, and Z2R13a. For example, R4is an optionally substitutedC3-6cycloalkyl, such as optionally substituted cyclopropyl, optionally substituted cyclobutyl, optionally substituted cyclopentyl, or optionally substituted cyclohexyl. Alternatively, R4is C(=O)NR11R12. For example, R12and R11is each independently an optionally substituted C1-6alkyl, such as such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, neopentyl, or hexyl. The remainder of features and example features of the fourth aspect is as described above with respect to the first through third aspects of the first embodiment.

[0002] In a fifth aspect of the first embodiment, R4is Z2R13a. For example, Z2is a bond. Alternatively, Z2is an optionally substituted C1-3alkylene. Alternatively yet, Z2is NH. For example, R13ais an optionally substituted 4- to 10-membered heterocyclyl, such as a 6- membered heterocyclyl, wherein the 6-membered heterocyclyl is optionally substituted with 1 to 5, such as 1, 2, 3, 4, or 5, such as 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy,halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1- 6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1- 3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a, R14b, R15a, R18a, R18b, R18c, R20, R20a, R24, R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21,R21b,R22,R22b,R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl. The remainder of features and example features of the fifth aspect is as described above with respect to the first through fourth aspects of the first embodiment.

[0003] In a sixth aspect of the first embodiment, the compound is represented by structural formula (IIa) or (IIb):(IIb), wherein A7is CR28or N; A8is NR29, CHR30, or O; R28is selected from H, halogen, OH, CN, and C1-6alkoxy; R29is selected from H, C1-6alkyl, C3-6cycloalkyl, C(O)O(C1-6alkyl), and 4- to 10-membered heterocyclyl; R30is selected from H, OH, and NR31R32; and R31and R32is each independently C1-6alkyl, wherein each C1-6alkoxy, C1-6alkyl, C3-6cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted. For example, the compound is represented by structural formula (IIa). Alternatively, the compound is represented by structural formula (IIb). For example, A7is CR28, R28is F; A8is NR29; and R29is an optionally substituted C1-6alkyl, such as optionally substituted methyl, optionally substituted ethyl, optionally substituted propyl, optionally substituted isopropyl, optionally substituted butyl, optionally substituted isobutyl, optionally substituted tert-butyl, optionally substituted pentyl, optionally substituted neopentyl, or optionally substituted hexyl. For example, R29is methyl. The remainder of features and example features of the sixth aspect is as described above with respect to the first through fifth aspects of the first embodiment.

[0004] In a seventh aspect of the first embodiment, A5is CH. Alternatively, A5is N. The remainder of features and example features of the seventh aspect is as described above with respect to the first through sixth aspects of the first embodiment.

[0005] In an eighth aspect of the first embodiment, X is a moiety represented by one of the following structural formulas:example, Q is CH. Alternatively, Q is N. For example, X is a moiety represented by the following structural formula:halogen, such as F, or a C1-6alkyl, such as methyl or ethyl. For example, X is a moiety represented by the following structural formula:. The remainder of features and example features of the eighth aspect is as described above with respect to the first through seventh aspects of the first embodiment.

[0006] In a ninth aspect of the first embodiment, Z1is selected from O, NH, N(C1-6alkyl), C(O)NH, NHC(O), and a bond. For example, Z1is O. Alternatively, Z1is NH. Alternatively yet, Z1is C(O)NH or NHC(O). Alternatively yet, Z1is bond. The remainder of features and example features of the ninth aspect is as described above with respect to the first through eighth aspects of the first embodiment.

[0007] In a tenth aspect of the first embodiment, R7is 4- to 10-membered heterocyclyl or (C1-6alkylene)NR17R18, wherein C1-6alkylene or 4- to 10-membered heterocyclyl isoptionally substituted . For example, R7is optionally substituted 7- to 10-membered heterocyclyl, such as a 7- to 10-membered heterocyclyl bicyclic heterocyclyl, such as an optionally substituted 7- to 10-membered bicyclic bridged or spirocyclic heterocyclyl. For example, R7is a 4-membered, 5-membered, or 6-membered heterocyclyl, wherein the 4- membered, 5-membered, or 6-membered heterocyclyl is optionally substituted with 1 to 5, such as 1, 2, 3, 4, or 5, such as 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1- 6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl, C3-6cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a, R14b, R15a, R18a, R18b, R18c, R20, R20a, R24, R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21, R21b, R22, R22b, R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24,C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1- 3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl. For example, R7is an optionally substituted 6-membered heterocyclyl. Alternatively R7is an optionally substituted 5-membered heterocyclyl. Alternatively yet, R7is (C1-6alkylene)NR17R18, wherein C1-6alkylene is optionally substituted. For example, R7is (C1-3alkylene)NR17R18, , wherein C1-3alkylene is optionally substituted. For example, R17and R18is each independently an optionally substituted C1-6alkyl, such as as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, neopentyl, or hexyl. The remainder of features and example features of the tenth aspect is as described above with respect to the first through ninth aspects of the first embodiment.

[0008] In an eleventh aspect of the first embodiment, the compound is represented by structural formula (III):For example, the compound is represented by structural formula (IIIa): wherein:A10is O or NR33; A9is selected from CH2, CHF, CF2, CH(OH), CH(OC1-6alkyl), and C(C1-6alkyl)2; A10is O or NR33; R33is selected from C1-6alkyl, C3-6cycloalkyl, and 4- to 10-membered heterocyclyl, whereineach C1-6alkyl, C3-6cycloalkyl, or 4- to 10-membered heterocyclyl is optionally susbstituted. For example, A10is NR33. For example, R33is optionally substituted C1-6alkyl, such as optionally substituted methyl, optionally substituted ethyl, optionally substituted propyl, optionally substituted isopropyl, optionally substituted butyl, optionally substituted isobutyl, optionally substituted tert-butyl, optionally substituted pentyl, optionally substituted neopentyl, or optionally substituted hexyl. For example, A9is CH2 or CHF, such CHF. For example, A9is CHF and A10is N(methyl). The remainder of features and example features of the eleventh aspect is as described above with respect to the first through tenth aspects of the first embodiment. For example, A9is CH2 or CHF, such CHF. For example, A9is CHF and A10is N(methyl). The remainder of features and example features of the eleventh aspect is as described above with respect to the first through tenth aspects of the first embodiment.

[0009] In a twelfth aspect of the first embodiment, R5is F or H. For example, R5is F. Alternatively, R5is H. The remainder of features and example features of the twelfth aspect is as described above with respect to the first through eleventh aspects of the first embodiment.

[0010] In a thirteenth aspect of the first embodiment, R6is H or methyl. For example, R6is H. Alternatively, R6is methyl. The remainder of features and example features of the thirteenth aspect is as described above with respect to the first through twelfth aspects of the first embodiment.

[0011] In a fourteenth aspect of the first embodiment, R1is selected from optionally substituted C1-6alkyl, optionally substituted C1-6haloalkyl , and optionally substituted C1-6alkoxy. For example, R1is optionally substituted C1-6alkyl, such as such as optionally substituted methyl, optionally substituted ethyl, optionally substituted propyl, optionally substituted isopropyl, optionally substituted butyl, optionally substituted isobutyl, optionally substituted tert-butyl, optionally substituted pentyl, optionally substituted neopentyl, or optionally substituted hexyl. For example R1is methyl. The remainder of features and example features of the fourteenth aspect is as described above with respect to the first through thirteenth aspects of the first embodiment.

[0012] In a fifteenth aspect of the first embodiment, R2is selected from optionally substituted C1-6alkyl, optionally substituted C1-6haloalkyl, and optionally substituted C1-6alkoxy. For example, R2a halogen, such as F or Cl. For example, R2is F. The remainder offeatures and example features of the fifteenth aspect is as described above with respect to the first through fourteenth aspects of the first embodiment.

[0013] In a sixteenth aspect of the first embodiment, Y is -C(O)NH-*. The remainder of features and example features of the sixteenth aspect is as described above with respect to the first through fifteenth aspects of the first embodiment.

[0014] In a seventeenth aspect of the first embodiment, R3is selected from optionally substituted C1-6alkyl, optionally substituted C1-6alkoxy, optionally substituted C3-6cycloalkyl, optionally substituted 4- to 10-membered heterocyclyl, and optionally substituted 5- to 12-membered heteroaryl. For example, R3is optionally substituted C3-6 cycloalkyl or optionally substituted 5- to 12-membered heteroaryl. For example, R3is optionally substituted C3-6 cycloalkyl, such as optionally substituted cyclopropyl, optionally substituted cyclobutyl, optionally substituted cyclopentyl, or optionally substituted cyclohexyl. For example, R3is cyclopropyl. Alternatively, R3is a 5-membered heteroaryl optionally substituted with 0 to 3 substituents independently selected from deuterium, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C1-6alkyl, C3-6cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a, R14b, R15a, R18a, R18b, R20, R20a, R24, R24b, R27, and R27bare each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl;R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21, R21b, R22, R22b, R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1- 3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl. For example, R3is a substituted 5-membered heteroaryl. Alternatively, R3is an unsubstituted 5-membered heteroaryl. The remainder of features and example features of the seventeenth aspect is as described above with respect to the first through sixteenth aspects of the first embodiment.

[0015] In an eighteenth aspect of the first embodiment, the compound is represented by structural formula (V):The remainder of features and example features of the eighteenth aspect is as described above with respect to the seventeenth aspect of the first embodiment.

[0016] In a nineteenth aspect of the first embodiment, the compound is represented by structural formula (VI), (VII), (VIII), or (IX):For example, the compound is represented by structural formula (VI) or (VII). For example, the compound is represented by structural formula (VI). For example, the compound is represented by structural formula (VII). For example, the compound is represented by structural formula (VIII). For example, the compound is represented by structural formula (IX). The remainder of features and example features of the nineteenth aspect is as described above with respect to the first through eighteenth aspects of the first embodiment.

[0017] In a twentieth aspect of the first embodiment, the compound is represented by structural formula (VIa) or (IVb):(VIb). For example, the compound is represented by structural formula (VIa). Alternatively, the compound is represented by structural formula (VIb). The remainder of features and example features of the twentieth aspect is as described above with respect to the first through nineteenth aspects of the first embodiment.

[0018] In a twenty-first aspect of the first embodiment, the compound is represented by structural formula (VIc):The remainder of features and example features of the twenty-first aspect is as described above with respect to the first through twentieth aspects of the first embodiment.

[0019] In a twenty-second aspect of the first embodiment, the compound is represented by structural formula (VIIa) or (VIIb):In some embodiments, R7is an optionally substituted 4-membered, 5-membered, or 6- membered heterocyclyl. The remainder of features and example features of the twenty- second aspect is as described above with respect to the first through twenty-first aspects of the first embodiment.

[0020] In a twenty-third aspect of the first embodiment, wherein the compound is represented by structural formula (IXa) or (IXb):some embodiments, R7is an optionally substituted 4-membered, 5-membered, or 6- membered heterocyclyl. The remainder of features and example features of the twenty-third aspect is as described above with respect to the first through twenty-second aspects of the first embodiment.

[0021] In a twenty-fourth aspect of the first embodiment, the compound is represented by structural formula (VIIc): For example, the compound is representedby structural formula (VIId):. The remainder of the values and example values of the variables of the twenty-fourth aspect are as described above with respect to the first through the twenty-third aspects of the first embodiment.

[0022] In a twenty-fifth aspect of the first embodiment, the compound is represented by structural formula (VId) or (VIe):In some embodiments, R7is an optionally substituted 4-membered, 5-membered, or 6- membered heterocyclyl. For example, the compound is represented by structural formula (VIf):some embodiments, the compound is represented by structural formula (VIg):The remainder of the values and example values of the variables of the twenty-fifth aspect are as described above with respect to the first through the twenty-fourth aspects of the first embodiment.

[0023] In a twenty-sixth aspect of the first embodiment, G is selected from the following moieties oriented in either direction:,,. The remainder of the values and example values of the variables of the fiftieth aspect are as described above with respect to the first through the twenty-fifth aspects of the first embodiment.

[0024] In a twenty-seventh aspect of the first embodiment, the compound is selected from the compounds in Table 1 or is a pharmaceutically acceptable salt thereof. Table 1.

[0025] In a twenty-eighth aspect of the first embodiment, the compound is selected from the compounds in Table 2 or is a pharmaceutically acceptable salt thereof.

[0026] Table 2.

[0027] In a twenty-ninth aspect of the first embodiment, the compound is selected from the compounds in Table 3 or is a pharmaceutically acceptable salt thereof.

[0028] Table 3.

[0029] In a thirtieth aspect of the first embodiment, the compound is selected from the compounds in Table 4 or is a pharmaceutically acceptable salt thereof.

[0030] Table 4. Compound number 14 51 57

[0031] In a thirty-first aspect of the first embodiment, the compound is selected from the compounds in Table 5 or is a pharmaceutically acceptable salt thereof.

[0032] Table 5.

[0033] In a thirty-second aspect of the first embodiment, the compound is selected from the compounds in Table 6 or is a pharmaceutically acceptable salt thereof.

[0034] Table 6.

[0035] In a thirty-third aspect of the first embodiment, the compound is selected from the compounds in Table 7 or is a pharmaceutically acceptable salt thereof.

[0036] Table 7.

[0037] In a thirty-fourth aspect of the first embodiment, the compound is selected from the compounds in Table 8 or is a pharmaceutically acceptable salt thereof.

[0038] Table 8.

[0039] In a thirthy-fifth aspect of the first embodiment, the compound is selected from the compounds in Table 9 or is a pharmaceutically acceptable salt thereof.

[0040] Table 9.

[0041] In a second embodiment, the present disclosure relates to a compound represented by structural formula (X”) or a pharmaceutically acceptable salt thereof:wherein: X’is a moiety represented by one of the following structural formulas:wherein # indicates the point of attachment to the pyridyl group; A1*N or CH; A2*CH or N; R1*is selected from C1-6alkyl, H, halogen, C1-6haloalkyl a¸nd C1-6alkoxy; R2*is selected from halogen, C1-6alkyl, H, C1-6haloalkyl a¸nd C1-6alkoxy; R3*is C3-6cycloalkyl or C1-6alkyl; R4*is a halogen; and R5*is 4- to 10-membered heterocyclyl; wherein each C1-6alkyl, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a*, SR15a*, NR16a*R17a*, S(O)R18a*, S(O)2R18b*, NR19*S(=O)R20*, C(=O)OR20a*, C(=O)NR21*R22*, NR23*C(=O)R24*, C(=S)NR25*R26*, C(=O)R27*, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1- 6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10- membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b*, NR16b*R17b*, C(=O)NR21b*R22b*, NR23b*C(=O)R24b*, C(=O)R27b*, C(=O)OR27c*, S(O)R18c*, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further whereinR14a*,R14b*,R15a*,R18a*,R18b*, R18c*, R20*,R20a*,R24*,R24b*, R27*, R27b*, and R27c*are each independently hydrogen or C1-6alkyl; R16a*, R17a*, R16b*, and R17b*are each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19*, R23*,and R23b*are each independently C1-6alkyl or halo(C1-6)alkyl; R21*, R21b*, R22*, R22b*, R25*and R26*are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl.

[0042] In a first aspect of the second embodiment, the compound is represented by structural formula (X) or a pharmaceutically acceptable salt thereof:

[0043] In a second aspect of the second embodiment, the compound is represented by structural formula (XIII) or a pharmaceutically acceptable salt thereof:

[0044] In a third aspect of the second embodiment, X’ is a moiety represented by one of the following structural formulas:. The remainder of features and example features of the third aspect is as described above with respect to the first through second aspects of the second embodiment.

[0045] In a fourth aspect of the second embodiment, the compound is represented by structural formula (Xa) or a pharmaceutically acceptable salt thereof:The remainder of features and example features of the fourth aspect is as described above with respect to the first through third aspects of the second embodiment.

[0046] In a fifth aspect of the second embodiment, X’ is a moiety represented by one of the following structural formulas:. The remainder of features and example features of the fifth aspect is as described above with respect to the first through fourth aspects of the second embodiment.

[0047] In a sixth aspect of the second embodiment, the compound is represented by structural formula (Xb) or a pharmaceutically acceptable salt thereof:The remainder of features and example features of the sixth aspect is as described above with respect to the first through fifth aspects of the second embodiment.

[0048] In a seventh aspect of the second embodiment, X’ is a moiety represented by one of the following structural formulas:a . The remainder of features and example features of the seventh aspect is as described above with respect to the first through sixth aspects of the second embodiment.

[0049] In a eighth aspect of the second embodiment, the compound is represented by structural formula (Xc) or a pharmaceutically acceptable salt thereof:The remainder of features and example features of the eighth aspect is as described above with respect to the first through seventh aspects of the second embodiment.

[0050] In a ninth aspect of the second embodiment, R1*is C1-3alkyl. For example, in certain embodiments, R1*is methyl, ethyl, propyl, or isopropyl. In some embodiments, R1*is methyl.The remainder of features and example features of the ninth aspect is as described above with respect to the first through eighth aspects of the second embodiment.

[0051] In a tenth aspect of the second embodiment, R2*is F or Cl. For example, in certain embodiments, R2*is F. The remainder of features and example features of the tenth aspect is as described above with respect to the first through ninth aspects of the second embodiment.

[0052] In a eleventh aspect of the second embodiment, R3*is C3-6 cycloalkyl. For example, in certain embodiments, R3*is cyclopropyl. The remainder of features and example features of the eleventh aspect is as described above with respect to the first through tenth aspects of the second embodiment.

[0053] In a twelfth aspect of the second embodiment, R3*is C1-6alkyl, such as C1-3alkyl. For example, in certain embodiments, R3*is methyl, ethyl, propyl, or isopropyl. In some embodiments, R3*is ethyl. The remainder of features and example features of the twelfth aspect is as described above with respect to the first through eleventh aspects of the second embodiment.

[0054] In a thirteenth aspect of the second embodiment, R4*is F or Cl. For example, in certain embodiments, R4*is F. In certain emodiments, R4*is Cl. The remainder of features and example features of the thirteenth aspect is as described above with respect to the first through twelfth aspects of the second embodiment.

[0055] In a fourteenth aspect of the second embodiment, the compound is represented by structural formula (XI) or a pharmaceutically acceptable salt thereof:The remainder of features and example features of the fourteenth aspect is as described above with respect to the first through thirteenth aspects of the second embodiment.

[0056] In a fifteenth aspect of the second embodiment, R5*is an optionally substituted 5-, 6- or 7-membered heterocyclyl. For example, in certain embodiments, R5*is a 6-membered heterocyclyl optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a*, SR15a*, NR16a*R17a*, S(O)R18a*, S(O)2R18b*, NR19*S(=O)R20*, C(=O)OR20a*, C(=O)NR21*R22*, NR23*C(=O)R24*, C(=S)NR25*R26*, C(=O)R27*, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b*, NR16b*R17b*, C(=O)NR21b*R22b*, NR23b*C(=O)R24b*, C(=O)R27b*, C(=O)OR27c*, S(O)R18c*, C1-6alkyl, C3-6cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a*, R14b*, R15a*, R18a*, R18b*, R18c*, R20*, R20a*, R24*, R24b*, R27*, R27b*, and R27c*are each independently hydrogen or C1-6alkyl; R16a*, R17a*, R16b*, and R17b*are each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19*, R23*,and R23b*are each independently C1-6alkyl or halo(C1-6)alkyl; R21*, R21b*, R22*, R22b*, R25*and R26*are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl. The remainder of features and example features of the fifteenth aspect is as described above with respect to the first through fourteenth aspects of the second embodiment.

[0057] In a sixteenth aspect of the second embodiment, R5*is a moiety represented by the following structural formula: wherein: A3*is O or NR7*, R6*is selected from H, F, OH, or C1-3alkoxy, and7*R is selected from H, C1-6alkyl, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl, wherein the C1-6alkyl, C1-3alkoxy, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted. The remainder of features and example features of the sixteenth aspect is as described above with respect to the first through fifteenth aspects of the second embodiment.

[0058] In a seventeenth aspect of the second embodiment, R6*is H or F. For example, in certain embodiments, R6*is H. In some embodiments, R6*is F. The remainder of featuresand example features of the seventeenth aspect is as described above with respect to the first through sixteenth aspects of the second embodiment.

[0059] In a eighteenth aspect of the second embodiment, R6*is OH or optionally substituted C1-3alkoxy. For example, in certain embodiments, R6*is OH. In some embodiments, R6*is optionally substituted C1-3alkoxy, such as optionally substituted methoxy, optionally substituted ethoxy, optionally substituted propoxy, or optionally substituted isopropoxy. In some embodiments, R6*is methoxy. The remainder of features and example features of the eighteenth aspect is as described above with respect to the seventeenth aspect of the second embodiment.

[0060] In a nineteenth aspect of the second embodiment, A3*is O. The remainder of features and example features of the nineteenth aspect is as described above with respect to the first through eighteenth aspects of the second embodiment.

[0061] In a tewntieth aspect of the second embodiment, A3*is NR7*. For example, in certain embodiments, R7*is H. In some embodiments, R7*is optionally substituted C1-6alkyl, such as optionally substituted methyl, optionally substituted ethyl, optionally substituted C3alkyl, optionally substituted C4alkyl, optionally substituted C5alkyl, or optionally substituted C6alkyl. For example, in certain embodiments, R7*is methyl, ethyl, or isopropyl. In some embodiments, R7*is optionally substituted 4- to 10-membered heterocyclyl, such as optionally substituted 4-membered heterocyclyl, optionally substituted 5-membered heterocyclyl¸ optionally substituted 6-membered heterocyclyl¸or optionally substituted 7-membered heterocyclyl. For example, in certain embodiments, R7*is selected from oxetanyl, thiatanyl, azetidinyl, tetrahydrofuranyl, tetrahydrothiaphenyl, pyrrolidinyl, tetrahydropyranyl, tetrahydrothiopyranyl, piperidinyl, piperazinyl, and morpholinyl, each of which is optionally substituted. In some embodiments, R7*is oxetanyl or tetrahydrofuranyl. The remainder of features and example features of the twentieth aspect is as described above with respect to the first through nineteenth aspects of the second embodiment.

[0062] In a twenty-first aspect of the second embodiment, the compound is represented by structural formula (XII) or a pharmaceutically acceptable salt thereof:wherein R28*is selected from H, C1-6alkyl, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl, wherein each C1-6alkyl, C3-6cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 deuterium, oxo, F, Cl, Br, CN, OR14a*, SR15a*, NR16a*R17a*, S(O)R18a*, S(O)2R18b*, NR19*S(=O)R20*, C(=O)OR20a*, C(=O)NR21*R22*, NR23*C(=O)R24*, C(=S)NR25*R26*, C(=O)R27*, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b*, NR16b*R17b*, C(=O)NR21b*R22b*, NR23b*C(=O)R24b*, C(=O)R27b*, C(=O)OR27c*, S(O)R18c*, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10- membered heterocyclyl, and further wherein R14a*,R14b*,R15a*,R18a*,R18b*, R18c*, R20*,R20a*,R24*,R24b*, R27*, R27b*, and R27c*are each independently hydrogen or C1-6alkyl; R16a*, R17a*, R16b*, and R17b*are each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19*, R23*,and R23b*are each independently C1-6alkyl or halo(C1-6)alkyl; R21*, R21b*, R22*, R22b*, R25*and R26*are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl. The remainder of features and example features of the twenty-first aspect is as described above with respect to the first through twentieth aspects of the second embodiment.

[0063] In a twenty-second aspect of the second embodiment, the compound is represented by structural formula (XIIa) or a pharmaceutically acceptable salt thereof:The remainder of features and example features of the twenty-second aspect is as described above with respect to the first through ywenty-first aspects of the second embodiment.

[0064] In a twenty-third aspect of the second embodiment, R28*is optionally substituted C1-6alkyl, such as optionally substituted methyl, optionally substituted ethyl, optionally substituted C3alkyl, optionally substituted C4alkyl, optionally substituted C5alkyl, or optionally substituted C6 alkyl. For example, in certain embodiments, R28*is methyl, ethyl, or isopropyl. The remainder of features and example features of the twenty-third aspect is as described above with respect to the first through twenty-second aspects of the second embodiment.

[0065] In a twenty-fourth aspect of the second embodiment, R28*is H. The remainder of the values and example values of the variables of the twenty-fourth aspect are as described above with respect to the first through the twenty-third aspects of the second embodiment.

[0066] In a twenty-fifth aspect of the second embodiment, R28*is optionally substituted 4- to 10-membered heterocyclyl, such as optionally substituted 4-membered heterocyclyl, optionally substituted 5-membered heterocyclyl, optionally substituted 6-membered heterocyclyl, or optionally substituted 7-membered heterocyclyl. For example, in certain embodiments, R28*is selected from oxetanyl, thiatanyl, azetidinyl, tetrahydrofuranyl, tetrahydrothiaphenyl, pyrrolidinyl, tetrahydropyranyl, tetrahydrothiopyranyl, piperidinyl, piperazinyl, and morpholinyl, each of which is optionally substituted. In some embodiments, R28*is oxetanyl or tetrahydrofuranyl. The remainder of the values and example values of the variables of the twenty-fifth aspect are as described above with respect to the first through the twenth-fourth aspects of the second embodiment.

[0067] In a twenty-sixth aspect of the second embodiment, A1*is N and A2*is CH. The remainder of the values and example values of the variables of the twenty-sixth aspect are asdescribed above with respect to the first through the twenthy-fifth aspects of the second embodiment.

[0068] In a twenty-seventh aspect of the second embodiment, A1*is N and A2*is N. The remainder of the values and example values of the variables of the twenty-seventh aspect are as described above with respect to the first through the twenty-sixth aspects of the second embodiment.

[0069] In a twenty-eighth aspect of the second embodiment, A1*is N and A2*is N. The remainder of the values and example values of the variables of the twenty-eighth aspect are as described above with respect to the first through the twenty-ninth aspects of the second embodiment.

[0070] In a thirtieth aspect of the second embodiment, the compound is selected from the compounds in Table 10 or is a pharmaceutically acceptable salt thereof.

[0071] Table 10.

[0072] In a thirty-first aspect of the second embodiment, the compound is selected from the compounds in Table 11 or a pharmaceutically acceptable salt thereof.

[0073] Table 11.

[0074] In a thirty-second aspect of the second embodiment, the compound is selected from the compounds in Table 12 or a pharmaceutically acceptable salt thereof.

[0075] Table 12.

[0076] In a thirty-third aspect of the second embodiment, the compound is represented by one of the following structural formulas or is a pharmaceutically acceptable salt thereof:

[0077]

[0078] In a third embodiment, the present invention relates to a pharmaceutical composition comprising a compound described herein with respect to the first and embodiments and various aspects thereof (e.g., a compound of formula (f) or (X”) or a pharmaceutically acceptable salt thereof), and a pharmaceutically acceptable excipient.

[0079] In a fourth embodiment, the present invention relates to method of treating a disease or disorder, comprising administering to a subject in need thereof a compound described herein with respect to the first and second embodiments and various aspects thereof (e.g., a compound of formula (f) or (X”) or a pharmaceutically acceptable salt thereof) or a pharmaceutical composition described herein with respect to the second embodiment and various aspects thereof, wherein the disease or disorder is selected from inflammatory diseases, autoimmune diseases, granulomatous diseases, cancer and neurodegen erative diseases.

[0080] In a first aspect of the fourth embodiment, the disease or disorder is an inflammatory disease. For example, the inflammatory disease is selected from uveitis, interleukin- 1 converting enzyme fever syndrome, dermatitis, acute lung injury, type 2 diabetes mellitus, arthritis, inflammatory bowel disease (IBD), ischemia reperfusion injury in a solid organ transplant, sepsis, liver disease, allergic disease, and graft versus host disease. For example, the inflammatory disease is an IBD. For example, the IBD is selected from ulcerative colitis, Crohn's disease, early-onset IBD, and extraintestinal IBD. Alternatively, the inflammatory disease is selected from rheumatoid arthritis, inflammatory arthritis, peritonitis, ischemia reperfusion injury in kidney transplant, non-alcohol steatohepatitis, alcohol steatohepatitis, insulin-resistant type 2 diabetes, allergic rhinitis, asthma, atopic dermatitis, Sjogren’s syndrome, ankylosing spondylitis, pemphigus vulgaris, idiopathic plasmacytic lymphadenopathy, atherosclerosis, myocardial infarction, thrombosis, α-synucleinopathy, Parkinson’s disease, dementia with Lewy body, multiple system atrophy,Alzheimer’s disease, amyotrophic lateral sclerosis, and chronic obstructive pulmonary disease.

[0081] In a second aspect of the fourth embodiment, the disease or disorder is an autoimmune disease. For example, the autoimmune disease is selected from systemic lupus erythematosus, lupus nephritis, psoriasis, immune thrombocytopenic purpura, and multiple sclerosis.

[0082] In a third aspect of the fourth embodiment, the disease or disorder is a granulomatous disease. For example, the granulomatous disease is selected from sarcoidosis, Blau syndrome, Wegner’s granulomatosis, Behcet’s disease, and interstitial pulmonary disease.

[0083] In a fourth aspect of the fourth embodiment, the disease or disorder is cancer. For example, the cancer is selected from leukemia, breast cancer, brain cancer, colorectal cancer, head and neck cancer, melanoma, pancreatic cancer, prostate cancer, ovarian cancer, renal cancer, and lung cancer.

[0084] In a fifth aspect of the fourth embodiment, the disease or disorder is a neurodegenerative disease. For example, the neurodegenerative disease is selected from Alzheimer’s disease, amyotrophic lateral sclerosis (ALS / Lou Gehrig’s Disease), Parkinson’s disease, multiple sclerosis, diabetic neurophathy, polyglutamine (polyQ) diseases, stroke, Fahr disease, Menke’s disease, Wilson’s disease, cerebral ischemia, a prion disorder, dementia, corticobasal degeneration, progressive supranuclear palsy, spinocerebellar atrophies, brain injury, and spinal cord injury.

[0085] In a sixth aspect of the fourth embodiment, the method further comprises administering second agent. For example, in some embodiments, the second agent is an anti- inflammatory agent or an anti-autoimmune agent. The remainder of features and example features of the sixth aspect is as described above with respect to the first through fifth aspects of the fourth embodiment.

[0086] In a seventh aspect of the fourth embodiment, the second agent is selected from anti-TNF agent, anti-IL-23 agent, anti-integrin agent, and JAK inhibitor. In a particular aspect, the second agent is anti-TNF agent. In a particular aspect, second agent is anti-IL-23 agent. In a particular aspect, the second agent is anti-integrin agent. In a particular aspect, second agent is JAK inhibitor. The remainder of features and example features of theseventh aspect is as described above with respect to the first through sixth aspects of the fourth embodiment.

[0087] In an eighth aspect of the fourth embodiment, the second agent and the compound are administered contemporaneously, such as administered together in a single pharmaceutical formulation. In a particular aspect, the second agent and the compound are formulated for simultaneous administration. The remainder of features and example features of the eighth aspect is as described above with respect to the first through seventh aspects of the fourth embodiment.

[0088] In a ninth aspect of the fourth embodiment, the second agent and the compound are administered separately. In a particlur aspect, the second agent and the compound are administered separately at different times. In a particlur aspect, the second agent and the compound are administered separately at the same time. The remainder of features and example features of the ninth aspect is as described above with respect to the first through eighth aspects of the fourth embodiment.

[0089] In a fifth embodiment, the present relates to a method of treating a RIP2 kinase- mediated disease or disorder, comprising administering to a subject in need thereof a compound described herein with respect to the first and second embodiments and various aspects thereof (e.g., a compound of formula (I’) or (X”) or a pharmaceutically acceptable salt thereof) or a pharmaceutical composition described herein with respect to the second embodiment and various aspects thereof. In one aspect, the RIP2 kinase-mediated disease or disorder is a disease or disorder wherein inhibition of RIP2 kinase would provide benefit. In a particular aspect, the disease or disorder is selected from an inflammatory disease, autoimmune disease, granulomatous disease, cancer, and neurodegenerative disease.

[0090] In a sixth embodiment, the present invention relates to the use of a compound described herein with respect to the first embodiment and various aspects thereof (e.g., a compound of formula (I’) or (X”) or a pharmaceutically acceptable salt thereof) in the manufacture of a medicament for use in treating a RIP2 kinase-mediated diseases or disorders (e.g., inflammatory diseases, autoimmune diseases, granulomatous diseases, cancer or neurodegenerative diseases).

[0091] In a first aspect of the sixth embodiment, the RIP2 kinase-mediated disease or disorder is an inflammatory disease. For example, the inflammatory disease is selected from uveitis, interleukin-1 converting enzyme fever syndrome, dermatitis, acute lung injury, type2 diabetes mellitus, arthritis, inflammatory bowel disease (IBD), ischemia reperfusion injury in a solid organ transplant, sepsis, liver disease, allergic disease, and graft versus host disease. For example, the inflammatory disease is an IBD. For example, the IBD is selected from ulcerative colitis, Crohn's disease, early-onset IBD, and extraintestinal IBD. Alternatively, the inflammatory disease is selected from rheumatoid arthritis, inflammatory arthritis, peritonitis, ischemia reperfusion injury in kidney transplant, non-alcohol steatohepatitis, alcohol steatohepatitis, insulin-resistant type 2 diabetes, allergic rhinitis, asthma, atopic dermatitis, Sjogren’s syndrome, ankylosing spondylitis, pemphigus vulgaris, idiopathic plasmacytic lymphadenopathy, atherosclerosis, myocardial infarction, thrombosis, a-synucleinopathy, Parkinson’s disease, dementia with Lewy body, multiple system atrophy, Alzheimer’s disease, amyotrophic lateral sclerosis, and chronic obstructive pulmonary disease.

[0092] In a second aspect of the sixth embodiment, the RIP2 kinase-mediated disease or disorder is an autoimmune disease. For example, the autoimmune disease is selected from systemic lupus erythematosus, lupus nephritis, psoriasis, immune thrombocytopenic purpura, and multiple sclerosis.

[0093] In a third aspect of the sixth embodiment, the RIP2 kinase-mediated disease or disorder is a granulomatous disease. For example, the granulomatous disease is selected from sarcoidosis, Blau syndrome, Wegner’s granulomatosis, Behcet’s disease, and interstitial pulmonary disease.

[0094] In a fourth aspect of the sixth embodiment, the RIP2 kinase-mediated disease or disorder is cancer. For example, the cancer is selected from leukemia, breast cancer, brain cancer, colorectal cancer, head and neck cancer, melanoma, pancreatic cancer, prostate cancer, ovarian cancer, renal cancer, and lung cancer.

[0095] In a fifth aspect of the sixth embodiment, the RIP2 kinase-mediated disease or disorder is a neurodegenerative disease. For example, the neurodegenerative disease is selected from Alzheimer’s disease, amyotrophic lateral sclerosis (ALS / Lou Gehrig’s Disease), Parkinson’s disease, multiple sclerosis, diabetic neurophathy, polyglutamine (polyQ) diseases, stroke, Fahr disease, Menke’s disease, Wilson’s disease, cerebral ischemia, a prion disorder, dementia, corticobasal degeneration, progressive supranuclear palsy, spinocerebellar atrophies, brain injury, and spinal cord injury.

[0096] In a seventh embodiment, the present invention relates to a compound described herein with respect to the first embodiment and various aspects thereof (e.g., a compound of formula (I') or (X”) or a pharmaceutically acceptable salt thereof) for use in treating RIP2 kinase-mediated diseases and disorders ((e.g., inflammatory diseases, autoimmune diseases, granulomatous diseases, cancer or neurodegenerative diseases).

[0097] In a first aspect of the seventh embodiment, the RIP2 kinase-mediated disease or disorder is an inflammatory disease. For example, the inflammatory disease is selected from uveitis, interleukin- 1 converting enzyme fever syndrome, dermatitis, acute lung injury, type 2 diabetes mellitus, arthritis, inflammatory bowel disease (IBD), ischemia reperfusion injury in a solid organ transplant, sepsis, liver disease, allergic disease, and graft versus host disease. For example, the inflammatory disease is an IBD. For example, the IBD is selected from ulcerative colitis, Crohn's disease, early-onset IBD, and extraintestinal IBD. Alternatively, the inflammatory disease is selected from rheumatoid arthritis, inflammatory arthritis, peritonitis, ischemia reperfusion injury in kidney transplant, non-alcohol steatohepatitis, alcohol steatohepatitis, insulin-resistant type 2 diabetes, allergic rhinitis, asthma, atopic dermatitis, Sjogren’s syndrome, ankylosing spondylitis, pemphigus vulgaris, idiopathic plasmacytic lymphadenopathy, atherosclerosis, myocardial infarction, thrombosis, a-synucleinopathy, Parkinson’s disease, dementia with Lewy body, multiple system atrophy, Alzheimer’s disease, amyotrophic lateral sclerosis, and chronic obstructive pulmonary disease.

[0098] In a second aspect of the seventh embodiment, the RIP2 kinase-mediated disease or disorder is an autoimmune disease. For example, the autoimmune disease is selected from systemic lupus erythematosus, lupus nephritis, psoriasis, immune thrombocytopenic purpura, and multiple sclerosis.

[0099] In a third aspect of the seventh embodiment, the RIP2 kinase-mediated disease or disorder is a granulomatous disease. For example, the granulomatous disease is selected from sarcoidosis, Blau syndrome, Wegner’s granulomatosis, Behcet’s disease, and interstitial pulmonary disease.

[0100] In a fourth aspect of the seventh embodiment, the RIP2 kinase-mediated disease or disorder is cancer. For example, the cancer is selected from leukemia, breast cancer, brain cancer, colorectal cancer, head and neck cancer, melanoma, pancreatic cancer, prostate cancer, ovarian cancer, renal cancer, and lung cancer.

[0101] In a fifth aspect of the seventh embodiment, the RIP2 kinase-mediated disease or disorder is a neurodegenerative disease. For example, the neurodegenerative disease is selected from Alzheimer’s disease, amyotrophic lateral sclerosis (ALS / Lou Gehrig’s Disease), Parkinson’s disease, multiple sclerosis, diabetic neurophathy, polyglutamine (polyQ) diseases, stroke, Fahr disease, Menke’s disease, Wilson’s disease, cerebral ischemia, a prion disorder, dementia, corticobasal degeneration, progressive supranuclear palsy, spinocerebellar atrophies, brain injury, and spinal cord injury.

[0102] In a sixth aspect of the seventh embodiment, the compound is formulated to be administered with a second agent. For example, in some embodiments, the second agent is an anti-inflammatory agent or an anti-autoimmune agent. The remainder of features and example features of the sixth aspect is as described above with respect to the first through fifth aspects of the seventh embodiment.

[0103] In a seventh aspect of the seventh embodiment, the second agent is selected from anti-TNF agent, anti-IL-23 agent, anti-integrin agent, and JAK inhibitor. In a particular aspect, the second agent is anti-TNF agent. In a particular aspect, second agent is anti-IL-23 agent. In a particular aspect, the second agent is anti-integrin agent. In a particular aspect, second agent is JAK inhibitor. The remainder of features and example features of the seventh aspect is as described above with respect to the first through sixth aspects of the seventh embodiment.

[0104] In an eighth aspect of the seventh embodiment, the second agent and the compound are administered contemporaneously, such as administered together in a single pharmaceutical formulation. In a particular aspect, the second agent and the compound are formulated for simultaneous administration. The remainder of features and example features of the eighth aspect is as described above with respect to the first through seventh aspects of the seventh embodiment.

[0105] In a ninth aspect of the seventh embodiment, the second agent and the compound are administered separately. In a particlur aspect, the second agent and the compound are administered separately at different times. In a particlur aspect, the second agent and the compound are administered separately at the same time. The remainder of features and example features of the ninth aspect is as described above with respect to the first through eighth aspects of the seventh embodiment.

[0106] The invention now being generally described, will be more readily understood by reference to the following examples, which are included merely for purposes of illustration of certain aspects and embodiments of the present invention, and are not intended to limit the invention. Starting materials described herein can be obtained from commercial sources or may be readily prepared from commercially available materials using transformations known to those skilled in the art.

[0107] EXAMPLES

[0108] The following General Schemes depict synthetic sequences for Examples 1-24. General Scheme 1

[0109] Example 1 – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 14); Prepared according to General Scheme 16

[0110] Part I – Synthesis of 5-bromo-N-(1-methylpiperidin-4-yl)pyridin-3-amine

[0111] A mixture of 3-bromo-5-fluoropyridine (7.68 g, 43.6 mmol, 1.00 equiv.) and 1- methylpiperidin-4-amine (5.00 g, 43.6 mmol, 1.00 equiv.) was heated to 140 °C for 4 d. Subsequently, the crude product was purified by column chromatography (DCM / MeOH 9:1). The title compound was obtained as a brown oil (2.0 g, 17%).

[0112] Part II – Synthesis of N-(1-methylpiperidin-4-yl)-5-(1H-pyrazol-4-yl)pyridin-3- amine

[0113] A solution of tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H- pyrazole-1-carboxylate (2.36 g, 8.04 mmol, 1.20 equiv.), 5-bromo-N-(1-methylpiperidin-4- yl)pyridin-3-amine (1.81 g, 6.70 mmol, 1.00 equiv.), Pd(dppf)Cl2 (546 mg, 670 µmol, 0.10 equiv.), and K2CO3 (2.78 g, 20.0 mmol, 3.00 equiv.) in 1,4-dioxane (14.4 mL) and water (3.6 mL) was heated to 90 °C for 16 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% formic acid), mobile phase B: ACN, gradient: 10-50% B in 10 min; wavelength: 254 nm). The title compound was obtained as a brown oil (2.5 g, crude).

[0114] Part III – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 14)

[0115] A solution of N-(1-methylpiperidin-4-yl)-5-(1H-pyrazol-4-yl)pyridin-3-amine (1.0 g, 3.89 mmol, 1.00 equiv.), 5-bromo-N-cyclopropyl-2-fluoro-4-methylbenzamide (1.06 g, 3.89 mmol, 1.00 equiv., synthesized according to Part I of Example 12), copper(I) iodide (370 mg, 1.94 mmol, 0.50 equiv.), (S,S)-N,N’-dimethyl-1,2-diaminocyclohexane (553 mg, 3.89 mmol, 1.00 equiv.), and K3PO4 (1.65 g, 7.77 mmol, 2.00 equiv.) in DMF (20 mL) was heated to 100 °C for 36 h under an inert atmosphere of nitrogen. Subsequently, the crudeproduct was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% ammonia + 10 mmol / L NH4HCO3), mobile phase B: MeOH, gradient: 10-50% B in 10 min; wavelength: 254 nm). The title compound was obtained as a white solid (formic acid salt, 42.4 mg, 2.4%). LCMS (ESI) calculated for C25H30FN6O (M+H)+: 449.3, found: 449.3.1H NMR (300 MHz, DMSO-d6) į 8.58 (s, 1H), 8.46 (d, J = 4.2 Hz, 1H), 8.21-8.19 (m, 2H), 8.10 (s, 1H), 7.86 (s, 1H), 7.59 (d, J = 6.6 Hz, 1H), 7.40 (d, J = 11.1 Hz, 1H), 7.15 (s, 1H), 5.79 (d, J = 8.1 Hz, 1H), 3.37-3.33 (m, 1H), 2.90-2.78 (m, 3H), 2.30 (s, 3H), 2.26 (s, 3H), 2.24-2.11 (m, 2H), 1.94-1.90 (m, 2H), 1.53-1.36 (m, 2H), 0.75-0.65 (m, 2H), 0.61-0.51 (m, 2H).

[0116] Example 2 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3-fluoro-1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4-methylbenzamide (compound 115); Prepared according to General Scheme 7

[0117] Part I – Synthesis of tert-butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4- fluoro-2-methylphenyl)-1H-1,2,3-triazol-4-yl)pyridin-3-yl)amino)-3-fluoropiperidine-1- carboxylate

[0118] A solution of 5-(4-(5-bromopyridin-3-yl)-1H-1,2,3-triazol-1-yl)-N-cyclopropyl- 2-fluoro-4-methylbenzamide (300 mg, 721 µmol, 1.00 equiv., synthesized according to Part VI of Example 3), tert-butyl (3R,4S)-4-amino-3-fluoropiperidine-1-carboxylate (189 mg, 865 µmol, 1.20 equiv.), Cs2CO3(705 mg, 2.16 mmol, 3.00 equiv.), and dichloro[4,5-dichloro-1,3-bis(2,6-di-3-pentylphenyl)imidazole-2-ylidene](2-methylpyridyl)palladium(II) (60.6 mg, 72.1 µmol, 0.10 equiv.) in 1,4-dioxane (6 mL) was heated to 90 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure, and the crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a yellow solid (192 mg, 45%).

[0119] Part II – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3- fluoropiperidin-4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4-methylbenzamide

[0120] A solution of HCl in 1,4-dioxane (4 M, 2 mL) was added to a solution of tert- butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-1,2,3- triazol-4-yl)pyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (192 mg, 347 Pmol, 1.00 equiv.) in DCM (2 mL) and the mixture was stirred at room temperature for 30 min. Subsequently, the solvent was removed under reduced pressure. The title compound was obtained as a gray solid (181 mg), which was used in the next reaction without further purification. Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3-fluoro-1-methylpiperidin- 4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4-methylbenzamide (compound 115)

[0121] Paraformaldehyde (159 mg, 1.76 mmol, 4.00 equiv.) and sodium triacetoxyborohydride (374 mg, 1.76 mmol, 4.00 equiv.) were added to a solution of N- cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3-fluoropiperidin-4-yl)amino)pyridin-3-yl)-1H- 1,2,3-triazol-1-yl)-4-methylbenzamide (200 mg, 441 µmol, 1.00 equiv.) in MeOH (4 mL) and the mixture was stirred at room temperature overnight. Insoluble byproducts werefiltered off and the solvent was removed under reduced pressure. The crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% ammonia), mobile phase B: ACN, gradient: 10-50% B in 30 min; wavelength: 254 nm). The title compound was obtained as a white solid (5.6 mg, 2.7%). LCMS (ESI) calculated for C24H28F2N7O (M+H)+: 468.2, found: 468.3.1H NMR (400 MHz, DMSO-d6) į 8.99 (s, 1H), 8.51 (d, J = 4.3 Hz, 1H), 8.32 (d, J = 1.8 Hz, 1H), 8.10 (d, J = 2.7 Hz, 1H), 7.71 (d, J = 6.5 Hz, 1H), 7.56 – 7.47 (m, 2H), 6.06 (d, J = 8.9 Hz, 1H), 4.86 – 4.74 (m, 1H), 3.64 – 3.56 (m, 1H), 3.03 (t, J = 11.0 Hz, 1H), 2.90 – 2.74 (m, 2H), 2.35 – 2.32 (m, 1H), 2.25 (s, 3H), 2.20 (s, 3H), 2.13 – 2.12 (m, 1H), 1.83 – 1.72 (m, 2H), 0.75 – 0.70 (m, 2H), 0.60 – 0.52 (m, 2H).

[0122] Example 3 – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)benzamide (compound 86); Prepared according to General Schemes 7, 8 and 10

[0123] Part I – Synthesis of 2-fluoro-5-iodo-4-methylbenzoic acid

[0124] NIS (73.0 g, 324 mmol, 1.00 equiv.) was added to a solution of 2-fluoro-4- methylbenzoic acid (50.0 g, 324 mmol, 1.00 equiv.) in TFA (500 mL) and the mixture was stirred at room temperature overnight. Subsequently, the precipitated product was filtered off and washed with n-hexane (2 x 200 mL). The title compound was obtained as a pink solid (86.3 g, 95%), which was used in the next reaction without further purification.

[0125] Part II – Synthesis of N-cyclopropyl-2-fluoro-5-iodo-4-methylbenzamide

[0126] Cyclopropylamine (12.2 g, 214 mmol, 1.20 equiv.) was added to a solution of 2- fluoro-5-iodo-4-methylbenzoic acid (50.0 g, 179 mmol, 1.00 equiv.), chloro-N,N,N’,N’- tetramethylformamidinium hexafluorophosphate (80.2 g, 286 mmol, 1.60 equiv.), and N- methylmorpholine (63.2 g, 625 mmol, 3.50 equiv.) in ACN (600 mL) at 10 °C. Subsequently, the reaction mixture was stirred at room temperature overnight. The solvent was removed under reduced pressure and the residue was dissolved in water (100 mL). The product was extracted with EtOAc (3 x 200 mL) and the combined organic phases were washed with brine (5 x 100 mL) and dried over MgSO4. The solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 20:1 to 2:1). The title compound was obtained as a white solid (43 g, 74%).

[0127] Part III – Synthesis of 5-azido-N-cyclopropyl-2-fluoro-4-methylbenzamide

[0128] A solution of N-cyclopropyl-2-fluoro-5-iodo-4-methylbenzamide (10.0 g, 31.3 mmol, 1.00 equiv.), L-proline (3.61 g, 31.3 mmol, 1.00 equiv.), sodium hydroxide (1.25 g, 31.3 mmol, 1.00 equiv.), and sodium azide (4.07 g, 62.7 mmol, 2.00 equiv.) in EtOH (140 mL) and water (60 mL) was heated to 95 °C overnight. Subsequently, water (200 mL) was added, and the product was extracted with EtOAc (3 x 100 mL). The combined organic phases were washed with brine (2 x 50 mL), dried over MgSO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 20:1 to 5:1). The title compound was obtained as a white solid (4.4 g, still contained 37 mol% of the aryl iodide starting material).

[0129] Part IV – Synthesis of 3-bromo-5-((trimethylsilyl)ethynyl)pyridine

[0130] A solution of 3-bromo-5-iodopyridine (20.0 g, 70.4 mmol. 1.00 equiv.), trimethylsilylacetylene (13.8 g, 141 mmol, 2.00 equiv.), Pd(dppf)Cl2(1.03 g, 1.41 mmol,0.02 equiv.), copper(I) iodide (0.54 g, 2.82 mmol, 0.04 equiv.), and dicyclohexylamine (15.3 g, 84.5 mmol, 1.20 equiv.) in ACN (200 mL) was heated to 80 °C for 3 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 100:1). The title compound was obtained as a light-yellow oil (17.9 g, 85%).

[0131] Part V – Synthesis of 3-bromo-5-ethynylpyridine

[0132] K2CO3 (9.70 g, 70.2 mmol, 1.00 equiv.) was added to a solution of 3-bromo-5- ((trimethylsilyl)ethynyl)pyridine (17.8 g, 70.2 mmol, 1.00 equiv.) in MeOH (200 mL) and the mixture was stirred at room temperature for 2 h. Subsequently, insoluble materials were filtered off, washed with MeOH (100 mL) and the solvent of the combined organic phases was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 50:1). The title compound was obtained as a light- yellow solid (8.7 g, 68%).

[0133] Part VI – Synthesis of 5-(4-(5-bromopyridin-3-yl)-1H-1,2,3-triazol-1-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamide

[0134] A solution of 5-azido-N-cyclopropyl-2-fluoro-4-methylbenzamide (129 mg, 549 µmol, 1.00 equiv.), 3-bromo-5-ethynylpyridine (100 mg, 549 µmol, 1.00 equiv.), copper(II) sulfate (87.7 mg, 549 µmol, 1.00 equiv.), and sodium ascorbate (109 mg, 549 µmol, 1.00 equiv.) in THF (3 mL) and water (2 mL) was stirred at room temperature for 3 h under an inert atmosphere of nitrogen. Subsequently, insoluble materials were filtered off, washed with MeOH (2 x 2 mL) and the solvent of the combined organic phases was removed under reduced pressure. The crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water, mobile phase B: ACN, gradient: 20-50% B in 30 min; wavelength: 210 nm). The title compound was obtained as an off-white solid (45.1 mg, 20%).

[0135] Part VII – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)benzamide (compound 86)

[0136] A solution of 5-(4-(5-bromopyridin-3-yl)-1H-1,2,3-triazol-1-yl)-N-cyclopropyl- 2-fluoro-4-methylbenzamide (100 mg, 240 µmol, 1.00 equiv.), 1-methylpiperidin-4-amine (32.9 mg, 288 µmol, 1.20 equiv.), dichloro[4,5-dichloro-1,3-bis(2,6-di-3- pentylphenyl)imidazole-2-ylidene](2-methylpyridyl)palladium(II) (20.2 mg, 24 µmol, 0.10 equiv.), and Cs2CO3 (235 mg, 720 µmol, 3.00 equiv.) in 1,4-dioxane (4 mL) was heated to 90 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure, and the crude product was purified by preparative HPLC (column: XBridge Prep Shield RP18 OBD, 19 × 250 mm, 5 µm; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN; flow rate: 60 mL / min; gradient: 5% B for 2 min, then 5-18% B in 2.5 min, then 18-44% B in 10 min; wavelength: 220 nm; RT1: 9.13 min). The title compound was obtained as a white solid (42.7 mg, 38%). LCMS (ESI) calculated for C24H29FN7O (M+H)+: 450.2, found: 450.3.1H NMR (300 MHz, DMSO-d6) į 9.01 (s, 1H), 8.50 (d, J = 4.3 Hz, 1H), 8.28 (d, J = 1.7 Hz, 1H), 7.98 (d, J = 2.7 Hz, 1H), 7.71 (d, J = 6.6 Hz, 1H), 7.50 (d, J = 10.8 Hz, 1H), 7.41 (t, J = 2.2 Hz, 1H), 5.95 (d, J = 8.0 Hz, 1H), 3.36 – 3.30 (m, 1H), 2.85 (tt, J = 7.3, 3.9 Hz, 1H), 2.78 – 2.68 (m, 2H), 2.25 (s, 3H), 2.18 (s, 3H), 2.05 (td, J = 11.5, 2.5 Hz, 2H), 1.92 (td, J = 12.6 Hz, 2H), 1.53 – 1.35 (m, 2H), 0.70 (dt, J = 6.9, 3.3 Hz, 2H), 0.62 – 0.50 (m, 2H).

[0137] Example 4 – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)benzamide (compound 108); Prepared according to General Scheme 13

[0138] Part I – Synthesis of 5-bromo-N-(1-methylpiperidin-4-yl)pyridin-3-amine

[0139] Copper(I) iodide (0.27 g, 1.41 mmol, 0.10 equiv.), K2CO3(7.79 g, 56.4 mmol, 4.00 equiv.), and L-proline (0.32 g, 2.82 mmol, 0.20 equiv.) were added to a solution of 3- bromo-5-iodopyridine (4.00 g, 14.1 mmol, 1.00 equiv.), and 1-methylpiperidin-4-amine (1.61 g, 14.1 mmol, 1.00 equiv.) in DMSO (32 mL) and the reaction mixture was heated to 90 °C overnight under an inert atmosphere of nitrogen. Subsequently, water (50 mL) was added, and the product was extracted with EtOAc (3 x 20 mL). The combined organic phases were washed with brine (10 mL), dried over MgSO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (DCM / MeOH 5:1). The title compound was obtained as a brown solid (1.93 g, 51%).

[0140] Part II – Synthesis of N-(1-methylpiperidin-4-yl)-5-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)pyridin-3-amine

[0141] A solution of 5-bromo-N-(1-methylpiperidin-4-yl)pyridin-3-amine (900 mg, 3.33 mmol, 1.00 equiv.), bis(pinacolato)diboron (1.69 g, 6.66 mmol, 2.00 equiv.), Pd(dppf)Cl2(244 mg, 333 µmol, 0.10 equiv.), and potassium acetate (981 mg, 9.99 mmol, 3.00 equiv.) in 1,4-dioxane (20 mL) was heated to 100 °C overnight under an inert atmosphere of nitrogen.Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 1:1). The title compound was obtained as a white solid (780 mg, 85%).

[0142] Part III – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)benzamide (compound 108)

[0143] A solution of N-(1-methylpiperidin-4-yl)-5-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)pyridin-3-amine (563 mg, 1.78 mmol, 1.10 equiv.), 5-(4-bromo-1H- imidazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide (500 mg, 1.48 mmol, 1.00 equiv., synthesized according to Part II of Example 10), Pd(dppf)Cl2 (108 mg, 148 µmol, 0.10 equiv.), and K2CO3(613 mg, 4.44 mmol, 3.00 equiv.) in 1,4-dioxane (8 mL) and water (2 mL) was heated to 80 °C for 3 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% ammonia), mobile phase B: ACN, gradient: 30-50% B in 30 min; wavelength: 210 nm). The title compound was obtained as a white solid (220 mg, 33%). LCMS (ESI) calculated for C25H30FN6O (M+H)+: 449.3, found: 449.3.1H NMR (300 MHz, DMSO-d6) į 8.58 (s, 1H), 8.45 (d, J = 4.3 Hz, 1H), 8.20 (s, 1H), 8.10 (d, J = 1.8 Hz, 1H), 7.86 (d, J = 2.6 Hz, 1H), 7.60 (d, J = 6.7 Hz, 1H), 7.39 (d, J = 11.0 Hz, 1H), 7.15 (t, J = 2.3 Hz, 1H), 5.74 (d, J = 8.2 Hz, 1H), 3.36 – 3.30 (m, 1H), 2.84 (tt, J = 7.8, 3.9 Hz, 1H), 2.78 – 2.67 (m, 2H), 2.30 (s, 3H), 2.17 (s, 3H), 2.04 (dd, J = 12.2, 9.8 Hz, 2H), 1.95 – 1.84 (m, 2H), 1.51 – 1.38 (m, 2H), 0.70 (dt, J = 6.9, 3.3 Hz, 2H), 0.65 – 0.50 (m, 2H).

[0144] Example 5 – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)oxy)pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 15); Prepared according to General Scheme 1 and 15

[0145] Part I – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(1H-pyrazol-1- yl)benzamide

[0146] A solution of N-cyclopropyl-2-fluoro-5-iodo-4-methylbenzamide (30.0 g, 94.0 mmol, 1.00 equiv., synthesized according to Part II of Example 3), pyrazole (7.68 g, 113 mmol, 1.20 equiv.), copper(I) iodide (2.15 g, 11.3 mmol, 0.12 equiv.), L-proline (6.49 g, 56.4 mmol, 0.60 equiv.), and K2CO3 (19.5 g, 141 mmol, 1.50 equiv.) in DMSO (600 mL) was heated 90 °C overnight under an inert atmosphere of nitrogen. Subsequently, water (600 mL) was added, and the product was extracted with EtOAc (3 x 1 L). The combined organic phases were washed with brine (3 x 100 mL), dried over MgSO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a brown solid (8.1 g, 33%).

[0147] Part II – Synthesis of 5-(4-bromo-1H-pyrazol-1-yl)-N-cyclopropyl-2-fluoro-4- methylbenzamide

[0148] Bromine (5.99 g, 37.5 mmol, 1.20 equiv.) was added dropwise to a solution of N- cyclopropyl-2-fluoro-4-methyl-5-(1H-pyrazol-1-yl)benzamide (8.10 g, 31.2 mmol, 1.00 equiv.) in acetic acid (81 mL) at 0 °C. Subsequently, the reaction mixture was stirred at this temperature for 30 min. Water (100 mL) was added and the product was extracted with EtOAc (3 x 50 mL). The combined organic phases were washed with brine (2 x 50 mL), dried over MgSO4, and the solvent was removed under reduced pressure. The crude productwas purified by column chromatography (petroleum ether / EtOAc 3:1). The title compound was obtained as a brown oil (7.6 g, 72%).

[0149] Part III – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(4,4,5,5- tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)benzamide

[0150] A solution of 5-(4-bromo-1H-pyrazol-1-yl)-N-cyclopropyl-2-fluoro-4- methylbenzamide (7.60 g, 22.5 mmol, 1.00 equiv.), bis(pinacolato)diboron (6.85 g, 27.0 mmol, 1.20 equiv.), Pd(dppf)Cl2 (3.29 g, 4.50 mmol, 0.20 equiv.), and potassium acetate (6.62 g, 67.4 mmol, 3.00 equiv.) in 1,4-dioxane (80 mL) was heated to 100 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 2:1). The title compound was obtained as a white solid (4.7 g, 54%).

[0151] Part IV – Synthesis of 3-bromo-5-((1-methylpiperidin-4-yl)oxy)pyridine

[0152] Sodium hydride (0.82 g, 34.1 mmol, 2.00 equiv.) was added slowly to a solution of 1-methylpiperidin-4-ol (2.36 g, 20.5 mmol, 1.20 equiv.) in DMF (30 mL) at room temperature. Subsequently, the reaction mixture was stirred at room temperature for 30 min. Subsequently, 3-bromo-5-fluoropyridine (3.00 g, 17.0 mmol, 1.00 equiv.) was added and the mixture was stirred at room temperature for 4 h. The reaction was quenched with water and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 10- 50% B in 15 min; wavelength: 254 nm). The title compound was obtained as a brown oil (2.5 g, 54%).

[0153] Part V – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((1- methylpiperidin-4-yl)oxy)pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 15)

[0154] A solution of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)-1H-pyrazol-1-yl)benzamide (153 mg, 398 µmol, 1.20 equiv.), 3-bromo- 5-((1-methylpiperidin-4-yl)oxy)pyridine (89.9 mg, 332 µmol, 1.00 equiv.), Pd(dppf)Cl2 (9.8 mg, 17.0 µmol, 0.05 equiv.), and K2CO3 (91.7 mg, 664 µmol, 2.00 equiv.) in 1,4-dioxane (1 mL) and water (0.2 mL) was heated to 80 °C for 4 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 10-100% B in 20 min; wavelength: 254 nm). The title compound was obtained as a brown solid (44 mg, 30%). LCMS (ESI) calculated for C25H29FN5O2(M+H)+: 450.2, found: 450.2.1H NMR (300 MHz, DMSO-d6) į 8.71 (d, J = 0.7 Hz, 1H), 8.56 (d, J = 1.7 Hz, 1H), 8.46 (d, J = 4.4 Hz, 1H), 8.34 (d, J = 0.7 Hz, 1H), 8.17 (d, J = 2.7 Hz, 1H), 7.71 (dd, J = 2.7, 1.8 Hz, 1H), 7.61 (d, J = 6.7 Hz, 1H), 7.41 (d, J = 10.9 Hz, 1H), 4.58 (dt, J = 8.4, 4.3 Hz, 1H), 2.84 (tt, J = 7.7, 3.9 Hz, 1H), 2.74 – 2.64 (m, 2H), 2.31 (s, 3H), 2.31 – 2.27 (m, 2H), 2.24 (s, 3H), 2.00 – 1.96 (m, 2H), 1.78 – 1.62 (m, 2H), 0.70 (td, J = 7.2, 4.8 Hz, 2H), 0.65 – 0.50 (m, 2H).

[0155] Example 6 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4-methylbenzamide (compound 57); Prepared according to General Scheme 6 and 8

[0156] Part I – Synthesis of 5-bromo-6-fluoro-N-(1-methylpiperidin-4-yl)pyridin-3- amine

[0157] A solution of 5-bromo-6-fluoropyridin-3-amine (5.0 g, 26.2 mmol, 1.00 equiv.), 1-methylpiperidin-4-one (4.44 g, 39.3 mmol, 1.50 equiv.), and p-toluenesulfonic acid (0.23 g, 1.31 mmol, 0.05 equiv.) in toluene (50 mL) was heated under reflux for 16 h. Subsequently, the solvent was removed under reduced pressure. The residue was dissolved in MeOH (50 mL) and sodium borohydride (1.98 g, 52.4 mmol, 2.00 equiv.) was added in small portions at 0 °C. Subsequently, the mixture was heated under reflux for 2 h. The reaction was quenched with an aqueous, saturated NH4Cl solution at 0 °C and the product was extracted with EtOAc (3 x 300 mL). The combined organic phases were washed with brine, dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a yellow solid (3.8 g, 50%).

[0158] Part II – Synthesis of 6-fluoro-N-(1-methylpiperidin-4-yl)-5- ((trimethylsilyl)ethynyl)pyridin-3-amine

[0159] A solution of 5-bromo-6-fluoro-N-(1-methylpiperidin-4-yl)pyridin-3-amine (3.80 g, 13.2 mmol. 1.00 equiv.), trimethylsilylacetylene (4.66 g, 47.5 mmol, 3.60 equiv.), Pd(dppf)Cl2 (1.35 g, 1.85 mmol, 0.14 equiv.), copper(I) iodide (0.33 g, 1.71 mmol, 0.13 equiv.), and 1,2-diaminocyclohexane (1.81 g, 15.8 mmol, 1.20 equiv.) in ACN (38 mL) was heated to 80 °C for 16 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a brown solid (3.4 g, 84%).

[0160] Part III – Synthesis of 5-ethynyl-6-fluoro-N-(1-methylpiperidin-4-yl)pyridin-3- amine

[0161] K2CO3(2.99 g, 21.6 mmol, 2.00 equiv.) was added to a solution of 6-fluoro-N- (1-methylpiperidin-4-yl)-5-((trimethylsilyl)ethynyl)pyridin-3-amine (3.30 g, 10.8 mmol, 1.00 equiv.) in MeOH (33 mL) and the mixture was stirred at room temperature for 2 h. The pH of the solution was adjusted to 7 with an aqueous HCl solution and the product was extracted with EtOAc (3 x 300 mL). The combined organic phases were washed with brine (3 x 100 mL), dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (DCM / MeOH 10:1). The title compound was obtained as a brown solid (1.6 g, 64%).

[0162] Part IV – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-((1- methylpiperidin-4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4-methylbenzamide (compound 57)

[0163] A solution of 5-azido-N-cyclopropyl-2-fluoro-4-methylbenzamide (502 mg, 2.14 mmol, 1.00 equiv.), 5-ethynyl-6-fluoro-N-(1-methylpiperidin-4-yl)pyridin-3-amine (500 mg, 2.14 mmol, 1.00 equiv.), copper(II) sulfate pentahydrate (535 mg, 2.14 mmol, 1.00 equiv.), and sodium ascorbate (427 mg, 2.14 mmol, 1.00 equiv.) in DMSO (5 mL) was heated to 40 °C for 2 h under an inert atmosphere of nitrogen. Subsequently, insoluble materials were filtered off, washed with DMSO (3 x 3 mL) and the solvent of the combined organic phases was removed under reduced pressure. The crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% formic acid), mobile phase B: ACN, gradient: 10-50% B in 10 min; wavelength: 254 nm). The title compound was obtained as a yellow solid (formic acid salt, 212 mg, 21%). LCMS (ESI) calculated for C24H28F2N7O (M+H)+: 468.2, found: 468.2.1H NMR (300 MHz, DMSO-d6) į 8.79 (d, J = 3.3 Hz, 1H), 8.51 (d, J = 4.3 Hz, 1H), 8.20 (s, 1H), 7.87 (dd, J = 8.3, 3.0 Hz, 1H), 7.71 (d, J = 6.6 Hz, 1H), 7.56 – 7.44 (m, 2H), 5.99 (d, J = 8.0 Hz, 1H), 3.38 – 3.33 (m, 1H), 2.98 – 2.77 (m, 3H), 2.38 – 2.31 (m, 2H), 2.34 (s, 3H), 2.22 (s, 3H), 2.00 – 1.96 (m, 2H), 1.56 – 1.44 (m, 2H), 0.70 (dt, J = 7.0, 3.3 Hz, 2H), 0.61 – 0.48 (m, 2H).

[0164] Example 7 – Preparation of Additional Monocyclic Compounds

[0165] Compounds in the table below were prepared based on experimental procedures described in Examples 1-6 and the detailed description.

[0166] Example 8 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(7-methoxy-6-(4- (oxetan-3-yl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4- methylbenzamide (compound 51); Prepared according to General Scheme 14

[0167] Part I – Synthesis of 6-bromo-7-methoxyimidazo[1,2-a]pyridine

[0168] A solution of chloroacetaldehyde in water (55 wt. %, 17.4 g, 222 mmol, 1.00 equiv.) was added to a solution of 5-bromo-4-methoxypyridin-2-amine (45.0 g, 222 mmol, 1.00 equiv.) in EtOH (90 mL) and water (360 mL). After stirring at room temperature for 5min, NaHCO3(22.3 g, 266 mmol, 1.2 equiv.) was added in portions and the mixture was heated to 90 °C for 4 h. Subsequently, the product was extracted with EtOAc (3 x 300 mL) and the combined organic phases were washed with brine (2 x 100 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a yellow solid (50 g, 99%).

[0169] Part II – Synthesis of 6-bromo-3-iodo-7-methoxyimidazo[1,2-a]pyridine

[0170] A solution of 6-bromo-7-methoxyimidazo[1,2-a]pyridine (90.0 g, 396 mmol, 1.00 equiv.) and NIS (107 g, 476 mmol, 1.20 equiv.) in DCM (900 mL) was stirred at 0 °C for 2 h. Subsequently, the solution was washed with brine (200 mL), dried over Na2SO4, and the solvent was removed under reduced pressure. The title compound was obtained as a brown solid (90 g, 64%), which was used in the next reaction without further purification.

[0171] Part III – Synthesis of 6-bromo-7-methoxy-3- ((trimethylsilyl)ethynyl)imidazo[1,2-a]pyridine

[0172] A solution of 6-bromo-3-iodo-7-methoxyimidazo[1,2-a]pyridine (90.0 g, 255 mmol. 1.00 equiv.), trimethylsilylacetylene (25.1 g, 255 mmol, 1.00 equiv.), Pd(dppf)Cl2 (9.33 g, 12.7 mmol, 0.05 equiv.), and copper(I) iodide (2.43 g, 12.7 mmol, 0.05 equiv.), in ACN (900 mL) was heated to 80 °C for 2 h under an inert atmosphere of nitrogen. Subsequently, water was added, and the product was extracted with DCM (4.5 L). The organic phase was washed with brine (3 L), dried over Na2SO4, and the solvent was removed under reduced pressure. The title compound was obtained as a brown solid (18 g, 22%), which was used in the next reaction without further purification.

[0173] Part IV – Synthesis of 6-bromo-3-ethynyl-7-methoxyimidazo[1,2-a]pyridine

[0174] K2CO3(15.4 g, 111 mmol, 2.00 equiv.) was added to a solution of 6-bromo-7- methoxy-3-((trimethylsilyl)ethynyl)imidazo[1,2-a]pyridine (18.0 g, 55.7 mmol, 1.00 equiv.) in MeOH (200 mL) and the mixture was stirred at room temperature for 4 h. Water was added and the product was extracted with DCM (300 mL). The organic phase was washed with water (200 mL), dried over Na2SO4, and the solvent was removed under reduced pressure. The title compound was obtained as a brown solid (10 g, 72%), which was used in the next reaction without further purification.

[0175] Part V – Synthesis of 6-bromo-3-ethynyl-7-methoxyimidazo[1,2-a]pyridine

[0176] A solution of 5-azido-N-cyclopropyl-2-fluoro-4-methylbenzamide (93.3 mg, 398 µmol, 1.00 equiv.), 6-bromo-3-ethynyl-7-methoxyimidazo[1,2-a]pyridine (193 mg, 398 µmol, 1.00 equiv.), copper(II) sulfate pentahydrate (99.4 mg, 398 µmol, 1.00 equiv.), and sodium ascorbate (79.3 mg, 398 µmol, 1.00 equiv.) in DMSO (1 mL) was heated to 40 °C for 2 h under an inert atmosphere of nitrogen. Subsequently, the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 10-100% B in 10 min; wavelength: 254 nm). The title compound was obtained as a brown solid (47.3 mg, 25%).

[0177] Part VI – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(7-methoxy-6-(4-(oxetan-3- yl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4-methylbenzamide (compound 51)

[0178] A solution of 5-(4-(6-bromo-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-1,2,3- triazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide (300 mg, 618 µmol, 1.00 equiv.), 1-(oxetan-3-yl)piperazine (176 mg, 1.24 mmol, 2.00 equiv.), Cs2CO3(604 mg, 1.85 mmol, 3.00 equiv.), and dichloro[4,5-dichloro-1,3-bis(2,6-di-3-pentylphenyl)imidazole-2- ylidene](2-methylpyridyl)palladium(II) (52.0 mg, 62.0 µmol, 0.10 equiv.) in 1,4-dioxane (6 mL) was heated to 90 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure, and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% formic acid), mobile phase B: MeOH, gradient: 20-40% B in 42 min; wavelength: 254 nm). The title compound was obtained as a white solid (31.9 mg, 9.1%). LCMS (ESI) calculated for C28H32FN8O3(M+H)+: 547.3, found: 547.1.1H NMR (400 MHz, DMSO-d6) į 9.00 (s, 1H), 8.71 (s, 1H), 8.53 (d, J = 4.3 Hz, 1H), 7.82 (s, 1H), 7.75 (d, J = 6.4 Hz, 1H), 7.52 (d, J = 10.7 Hz, 1H), 7.09 (s, 1H), 4.57 (t, J = 6.4 Hz, 2H), 4.48 (t, J = 6.0 Hz, 2H), 3.92 (s, 3H), 3.49 (t, J = 6.3 Hz, 1H), 3.08 – 3.04 (m, 4H), 2.89 – 2.79 (m, 1H), 2.48 – 2.44 (m, 4H), 2.28 (s, 3H), 0.77 – 0.65 (m, 2H), 0.61 – 0.51 (m, 2H).

[0179] Example 9 – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(6-(1- methylpiperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 12); Prepared according to General Scheme 17

[0180] Part I – Synthesis of 6-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2- a]pyridine

[0181] A solution of 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6- tetrahydropyridine (6.79 g, 30.5 mmol, 1.20 equiv.), 6-bromoimidazo[1,2-a]pyridine (5.00 g, 25.4 mmol, 1.00 equiv.), Pd(dppf)Cl2 (1.86 mg, 2.54 mmol, 0.10 equiv.), and Cs2CO3 (16.5 g, 50.8 mmol, 2.00 equiv.) in 1,4-dioxane (50 mL) and water (10 mL) was heated to 100 °C for 2 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 10:1). The title compound was obtained as a brown solid (5.4 g, >99%).

[0182] Part II – Synthesis of 6-(1-methylpiperidin-4-yl)imidazo[1,2-a]pyridine

[0183] Palladium on carbon (1.95 g, 35 wt. %) was added to a solution of 6-(1-methyl- 1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridine (5.58 g, 26.2 mmol, 1.00 equiv.) in MeOH (100 mL) and the mixture was stirred at room temperature for 16 h under an atmosphere of hydrogen. Subsequently, the suspension was filtered, and the residue was washed with MeOH (2 x 50 mL). The solvent of the combined organic phases was removed under reduced pressure. The title compound was obtained as a yellow oil (4.87 g, 87%), which was used in the next reaction without further purification.

[0184] Part III – Synthesis of 3-bromo-6-(1-methylpiperidin-4-yl)imidazo[1,2- a]pyridine

[0185] NBS (3.80 g, 21.4 mmol, 1.00 equiv.) was slowly added to a solution of 6-(1- methylpiperidin-4-yl)imidazo[1,2-a]pyridine (4.60 g, 21.4 mmol, 1.00 equiv.) in DCM (90 mL) at 0 °C. Subsequently, the solution was stirred at room temperature for 16 h. The mixture was diluted with DCM (200 mL) and washed with an aqueous saturated solution of NaHCO3 (3 x 50 mL) and brine (3 x 50 mL). The organic phase was dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 5-40% B in 50 min; wavelength: 254 nm). The title compound was obtained as a yellow solid (2.1 g, 30%).

[0186] Part VI – Synthesis of 6-(1-methylpiperidin-4-yl)-3-(1H-pyrazol-4- yl)imidazo[1,2-a]pyridine

[0187] A solution of tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H- pyrazole-1-carboxylate (600 mg, 1.70 mmol, 1.00 equiv.), 3-bromo-6-(1-methylpiperidin-4- yl)imidazo[1,2-a]pyridine (500 mg, 1.70 mmol, 1.00 equiv.), Pd(dppf)Cl2(124 mg, 170 µmol, 0.10 equiv.), and K2CO3 (470 mg, 3.40 mmol, 2.00 equiv.) in 1,4-dioxane (8 mL) and water (2 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% ammonia), mobile phase B: ACN, gradient: 10-40% B in 30 min; wavelength: 254 nm). The title compound was obtained as a yellow solid (300 mg, 63%).

[0188] Part V – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(6-(1- methylpiperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 12)

[0189] A solution of 6-(1-methylpiperidin-4-yl)-3-(1H-pyrazol-4-yl)imidazo[1,2- a]pyridine (200 mg, 711 µmol, 1.00 equiv.), 5-bromo-N-cyclopropyl-2-fluoro-4- methylbenzamide (232 mg, 853 µmol, 1.20 equiv.), copper(I) iodide (67.7 mg, 355 µmol, 0.50 equiv.), (S,S)-N,N’-dimethyl-1,2-diaminocyclohexane (101 mg, 711 µmol, 1.00 equiv.), and K3PO4 (302 mg, 1.42 mmol, 2.00 equiv.) in DMF (4 mL) was heated to 100 °C for 24 h under an inert atmosphere of nitrogen. Subsequently, the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 10-50% B in 40 min; wavelength: 254 nm). The title compound was obtained as a white solid (33.4 mg, 9.8%). LCMS (ESI) calculated for C27H30FN6O (M+H)+: 473.3, found: 473.2.1H NMR (400 MHz, DMSO-d6) į 8.71 (d, J = 0.8 Hz, 1H), 8.45 (d, J = 4.4 Hz, 1H), 8.30 (d, J = 1.5 Hz, 1H), 8.22 (d, J = 0.7 Hz, 1H), 7.80 (s, 1H), 7.67 (d, J = 6.7 Hz, 1H), 7.58 (dd, J = 9.3, 0.9 Hz, 1H), 7.42 (d, J = 11.0 Hz, 1H), 7.27 (dd, J = 9.3, 1.7 Hz, 1H), 2.91 – 2.82 (m, 3H), 2.69 – 2.58 (m, 1H), 2.32 (s, 3H), 2.19 (s, 3H), 2.01 – 1.91 (m, 2H), 1.81 – 1.71 (m, 4H), 0.75 – 0.65 (m, 2H), 0.60 – 0.52 (m, 2H).

[0190] Example 10 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(6-(4-fluoro-1- methylpiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-imidazol-1-yl)-4- methylbenzamide (compound 10); Prepared according to General Scheme 18

[0191] Part I – Synthesis of 5-(4-bromo-1H-imidazol-1-yl)-2-fluoro-4-methylbenzoic acid

[0192] A solution of 2-fluoro-5-iodo-4-methylbenzoic acid (8.00 g, 28.6 mmol, 1.00 equiv.), 4-bromo-1H-imidazole (5.04 g, 34.3 mmol, 1.20 equiv.), copper(I) iodide (0.65 g, 3.43 mmol, 0.12 equiv.), and K2CO3(11.8 g, 85.7 mmol, 3.00 equiv.) in DMSO (80 mL) was heated to 130 °C overnight under an inert atmosphere of nitrogen. Subsequently, water (100 mL) was added, and the pH of the solution was brought to 2 with hydrochloric acid (12 M). The product was extracted with EtOAc (3 x 50 mL). The combined organic phases were dried over MgSO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a brown solid (1.18 g, 12%).

[0193] Part II – Synthesis of 5-(4-bromo-1H-imidazol-1-yl)-N-cyclopropyl-2-fluoro-4- methylbenzamide

[0194] A solution of 5-(4-bromo-1H-imidazol-1-yl)-2-fluoro-4-methylbenzoic acid (1.10 g, 3.68 mmol, 1.00 equiv.), cyclopropylamine (0.25 g, 4.41 mmol, 1.20 equiv.), BOP (2.44 g, 5.52 mmol, 1.50 equiv.), N-methylmorpholine (1.30 g, 12.9 mmol, 3.50 equiv.) in DMF (10 mL) was stirred at room temperature for 1 h. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 5:1). The title compound was obtained as a yellow solid (1.0 g, 76%).

[0195] Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(6-(4-fluoro-1- methylpiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-imidazol-1-yl)-4- methylbenzamide (compound 10)

[0196] A solution of 5-(4-bromo-1H-imidazol-1-yl)-N-cyclopropyl-2-fluoro-4- methylbenzamide (250 mg, 739 µmol, 1.00 equiv.), 3-bromo-6-(4-fluoro-1-methylpiperidin- 4-yl)-7-methoxyimidazo[1,2-a]pyridine (506 mg, 1.48 mmol, 2.00 equiv.), hexamethylditin (484 mg, 1.48 mmol, 2.00 equiv.), and Pd(PPh3)4(427 mg, 369 µmol, 0.50 equiv.) in 1,4- dioxane (5 mL) was heated to 100 °C overnight under an inert atmosphere of nitrogen. The solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water, mobile phase B: ACN, gradient: 10-60% B in 50 min; wavelength: 210 nm). The title compound was obtained as an off-white solid (13.5 mg, 3.2%). LCMS (ESI) calculated for C28H31F2N6O2(M+H)+: 521.3, found: 521.3.1H NMR (300 MHz, DMSO-d6) į 9.40 (s, 1H), 8.45 (d, J = 4.3 Hz, 1H), 8.10 (d, J = 1.4 Hz, 1H), 7.89 (d, J = 1.4 Hz, 1H), 7.72 (s, 1H), 7.61 (d, J = 6.7 Hz, 1H), 7.44 (d, J = 10.9 Hz, 1H), 7.09 (s, 1H), 3.92 (s, 3H), 2.84 (tt, J = 7.7, 3.9 Hz, 1H), 2.72 – 2.66 (m, 4H), 2.27 – 2.19 (m, 8H), 1.78 (t, J = 12.2 Hz, 2H), 0.70 (dt, J = 6.9, 3.3 Hz, 2H), 0.68 – 0.50 (m, 2H).

[0197] Example 11 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(6-(4-fluoro-1- methylpiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4- methylbenzamide (compound 8); Prepared according to General Scheme 4

[0198] Part I – Synthesis of tert-butyl 4-hydroxy-4-(7-methoxyimidazo[1,2-a]pyridin-6- yl)piperidine-1-carboxylate

[0199] A solution of isopropylmagnesium chloride lithium chloride complex in THF (1.3 M, 618 mL, 802 mmol, 2.00 equiv.) was added dropwise to a solution of 6-bromo-7- methoxyimidazo[1,2-a]pyridine (91.0 g, 401 mmol, 1.00 equiv.) in THF (800 mL) at -30 °C under an inert atmosphere of nitrogen. The reaction mixture was stirred at this temperature for 1 h. Subsequently, a solution of tert-butyl 4-oxopiperidine-1-carboxylate (168 g, 842 mmol, 2.10 equiv.) in THF (400 mL) was added dropwise at -30 °C. After 15 min, the mixture was allowed to warm to room temperature and stirred overnight. The reaction was quenched with a saturated aqueous solution of NH4Cl (1.2 L) and the product was extracted with EtOAc (3 x 1 L). The combined organic phases were washed with brine (3 x 700 mL), dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (DCM / MeOH 10:1). The title compound was obtained as a yellow solid (48 g, 30%).

[0200] Part II – Synthesis of tert-butyl 4-(3-bromo-7-methoxyimidazo[1,2-a]pyridin-6- yl)-4-hydroxypiperidine-1-carboxylate

[0201] NBS (22.1 g, 124 mmol, 0.90 equiv.) was added to a solution of tert-butyl 4- hydroxy-4-(7-methoxyimidazo[1,2-a]pyridin-6-yl)piperidine-1-carboxylate (48.0 g, 138 mmol, 1.00 equiv.) in THF (500 mL) and the mixture was stirred at room temperature overnight. Subsequently, the solvent was removed under reduced pressure, and the crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a yellow solid (39 g, 66%).

[0202] Part III – Synthesis of tert-butyl 4-(3-bromo-7-methoxyimidazo[1,2-a]pyridin-6- yl)-4-fluoropiperidine-1-carboxylate

[0203] A solution of bis(2-methoxyethyl)aminosulfur trifluoride in THF (50%, 24.9 g, 113 mmol, 2.40 equiv.) was added dropwise to a solution of tert-butyl 4-(3-bromo-7- methoxyimidazo[1,2-a]pyridin-6-yl)-4-hydroxypiperidine-1-carboxylate (20.0 g, 46.9 mmol, 1.00 equiv.) in DCM (200 mL) at -78 °C under an inert atmosphere of nitrogen. Subsequently, the mixture stirred at -30 °C and at room temperature for 1 h and 1.5 h, respectively. The reaction was quenched with NaHCO3(100 mL), and the product was extracted with EtOAc (3 x 100 mL). The combined organic phases were washed with brine (100 mL), dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a yellow solid (10 g, 50%).

[0204] Part IV – Synthesis of 3-bromo-6-(4-fluoropiperidin-4-yl)-7- methoxyimidazo[1,2-a]pyridine

[0205] A solution of HCl in 1,4-dioxane (4 M, 240 mL) was added to tert-butyl 4-(3- bromo-7-methoxyimidazo[1,2-a]pyridin-6-yl)-4-fluoropiperidine-1-carboxylate (24.0 g, 56.0 mmol, 1.00 equiv.) and the mixture was stirred at room temperature for 1 h. Subsequently, the solvent was removed under reduced pressure. The title compound was obtained as a white solid (18.3 g, >99%), which was used in the next reaction without further purification.

[0206] Part V – Synthesis of 3-bromo-6-(4-fluoro-1-methylpiperidin-4-yl)-7- methoxyimidazo[1,2-a]pyridine

[0207] Paraformaldehyde (7.32 g, 244 mmol, 4.00 equiv.) and sodium triacetoxyborohydride (51.7 g, 244 mmol, 4.00 equiv.) were added to a solution of 3-bromo-6-(4-fluoropiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridine (20.0 g, 60.9 mmol, 1.00 equiv.) in MeOH (200 mL) and the mixture was stirred at room temperature overnight. Insoluble byproducts were filtered off and washed with MeOH (2 x 10 mL). The solvent was removed under reduced pressure. The crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 10-50% B in 30 min; wavelength: 254 nm). The title compound was obtained as a yellow solid (12 g, 58%).

[0208] Part VI – Synthesis of 3-ethynyl-6-(4-fluoro-1-methylpiperidin-4-yl)-7- methoxyimidazo[1,2-a]pyridine

[0209] A solution of 3-bromo-6-(4-fluoro-1-methylpiperidin-4-yl)-7- methoxyimidazo[1,2-a]pyridine (200 mg, 584 µmol. 1.00 equiv.), trimethylsilylacetylene (115 mg, 1.17 mmol, 2.00 equiv.), Pd(dppf)Cl2 (17.1 mg, 23 µmol, 0.04 equiv.), copper(I) iodide (3.3 g, 18 µmol, 0.03 equiv.), and dicyclohexylamine (127 mg, 701 µmol, 1.20 equiv.) in ACN (4 mL) was heated to 80 °C for 3 h under an inert atmosphere of nitrogen. Subsequently, K2CO3 (80.8mg, 584 µmol, 1.00 equiv.) and MeOH (2 mL) were added, and the mixture was stirred at room temperature for 2 h. The solvent was removed under reduced pressure and the residue was dissolved in water (3 mL). The product was extracted with EtOAc (3 x 10 mL). The combined organic phases were dried over Na2SO4, and the solvent was removed under reduced pressure. The title compound was obtained as a brown oil (210 mg), which was used in the next reaction without further purification.

[0210] Part VII – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(6-(4-fluoro-1- methylpiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4- methylbenzamide (compound 8)

[0211] A solution of 3-ethynyl-6-(4-fluoro-1-methylpiperidin-4-yl)-7- methoxyimidazo[1,2-a]pyridine (200 mg, 696 µmol, 1.00 equiv.), 5-azido-N-cyclopropyl-2- fluoro-4-methylbenzamide (163 mg, 696 µmol, 1.00 equiv.), and copper(II) acetate (25.3 mg, 139 µmol, 0.20 equiv.) in ACN (4 mL) was stirred at room temperature for 3 h under an inert atmosphere of nitrogen. Subsequently, insoluble materials were filtered off and the solvent was removed under reduced pressure. The crude product was purified by reversed- phase flash chromatography (column: C18 silica gel; mobile phase A: water, mobile phase B: ACN, gradient: 10-50% B in 10 min; wavelength: 210 nm). The title compound was obtained as a white solid (13.2 mg, 3.5%). LCMS (ESI) calculated for C27H30F2N7O2 (M+H)+: 522.2, found: 522.1.1H NMR (400 MHz, DMSO-d6) į 9.31 (s, 1H), 9.01 (s, 1H), 8.53 (d, J = 4.3 Hz, 1H), 7.89 (s, 1H), 7.75 (d, J = 6.6 Hz, 1H), 7.53 (d, J = 10.8 Hz, 1H), 7.19 (s, 1H), 3.95 (s, 3H), 2.85 (dq, J = 7.2, 3.7 Hz, 1H), 2.74 – 2.67 (m, 4H), 2.28 – 2.24 (m, 8H), 1.81 (t, J = 12.5 Hz, 2H), 0.71 (td, J = 7.1, 4.7 Hz, 2H), 0.60 – 0.50 (m, 2H).

[0212] Example 12 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(6-(4-fluoro-1- methylpiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)-4- methylbenzamide (compound 1); Prepared according to General Scheme 17

[0213] Part I – Synthesis of 5-bromo-N-cyclopropyl-2-fluoro-4-methylbenzamide

[0214] Cyclopropylamine (0.37 mg, 6.44 mmol, 1.00 equiv.) was added to a solution of 5-bromo-2-fluoro-4-methylbenzoic acid (1.50 g, 6.44 mmol, 1.00 equiv.), chloro-N,N,N’,N’- tetramethylformamidinium hexafluorophosphate (2.89 g, 10.3 mmol, 1.60 equiv.), and 1- methylimidazole (1.85 g, 22.5 mmol, 3.50 equiv.) in ACN (24 mL) and the mixture was stirred at room temperature for 4 h. The precipitated product was filtered off and dissolved in EtOAc. The organic phase was washed with water, dried over Na2SO4, and the solvent was removed under reduced pressure. The title compound was obtained as a white solid (700 mg, 39%), which was used in the next reaction without further purification.

[0215] Part II – Synthesis of 6-(4-fluoro-1-methylpiperidin-4-yl)-7-methoxy-3-(1H- pyrazol-4-yl)imidazo[1,2-a]pyridine

[0216] A solution of tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H- pyrazole-1-carboxylate (516 mg, 1.75 mmol, 1.20 equiv.), 3-bromo-6-(4-fluoro-1- methylpiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridine (500 mg, 1.46 mmol, 1.00 equiv.), Pd(dppf)Cl2 (107 mg, 146 µmol, 0.10 equiv.), and K2CO3 (606 mg, 4.38 mmol, 3.00 equiv.) in 1,4-dioxane (15 mL) and water (5 mL) was heated to 90 °C for 16 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 10- 50% B in 30 min; wavelength: 254 nm). The title compound was obtained as a yellow solid (250 mg, 52%).

[0217] Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(6-(4-fluoro-1- methylpiperidin-4-yl)-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)-4- methylbenzamide (compound 1)

[0218] A solution of 6-(4-fluoro-1-methylpiperidin-4-yl)-7-methoxy-3-(1H-pyrazol-4- yl)imidazo[1,2-a]pyridine (200 mg, 607 µmol, 1.00 equiv.), 5-bromo-N-cyclopropyl-2- fluoro-4-methylbenzamide (198 mg, 728 µmol, 1.20 equiv.), copper(I) iodide (57.8 mg, 303 µmol, 0.50 equiv.), (S,S)-N,N’-dimethyl-1,2-diaminocyclohexane (86.4 mg, 607 µmol, 1.00 equiv.), and K3PO4 (258 mg, 1.21 mmol, 2.00 equiv.) in DMF (4 mL) was heated to 80 °C for 24 h under an inert atmosphere of nitrogen. Subsequently, the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN, gradient: 10-40% B in 40 min; wavelength: 254 nm). The title compound was obtained as a white solid (36.5 mg, 11%). LCMS (ESI) calculated for C28H31F2N6O2 (M+H)+: 521.3, found: 521.0.1H NMR (300 MHz, DMSO-d6) į 8.59 (s, 1H), 8.46 (d, J = 4.4 Hz, 1H), 8.21 (s, 1H), 8.12 (s, 1H), 7.67 – 7.60 (m, 2H), 7.42 (d, J = 11.0 Hz, 1H), 7.13 (s, 1H), 3.92 (s, 3H), 2.91 – 2.79 (m, 1H), 2.77 – 2.40 (m, 4H), 2.33 (s, 3H), 2.30 – 2.15 (m, 5H), 1.85 (t, J = 12.3 Hz, 2H), 0.77 – 0.65 (m, 2H), 0.61 – 0.51 (m, 2H).

[0219] Example 13 – Synthesis of N-cyclopropyl-5-(4-(6-(2-(dimethylamino)ethyl)-7- methoxyimidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)-2-fluoro-4-methylbenzamide (compound 21); Prepared according to General Scheme 1

[0220] Part I – Synthesis of 5-(4-(6-bromo-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H- pyrazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide

[0221] A solution of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)-1H-pyrazol-1-yl)benzamide (3.00 g, 7.79 mmol, 1.00 equiv., synthesized according to Part III of Example 5), 6-bromo-3-iodo-7-methoxyimidazo[1,2-a]pyridine (3.30 g, 9.34 mmol, 1.20 equiv., synthesized according to Part II of Example 8), Pd(dppf)Cl2(0.57 g, 779 Pmol, 0.10 equiv.), and K2CO3(3.23 g, 23.4 mmol, 3.00 equiv.) in 1,4-dioxane (15 mL) and water (1.5 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 10:1). The title compound was obtained as a brown solid (721 mg, 12%).

[0222] Part II – Synthesis of (E)-N-cyclopropyl-5-(4-(6-(2-ethoxyvinyl)-7- methoxyimidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)-2-fluoro-4-methylbenzamide

[0223] A solution of 5-(4-(6-bromo-7-methoxyimidazo[1,2-a]pyridin-3-yl)-1H-pyrazol- 1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide (380 mg, 785 Pmol, 1.00 equiv.), (E)- tributyl(2-ethoxyvinyl)stannane (340 mg, 942 Pmol, 1.20 equiv.), and Pd(PPh3)4 (45.3 mg, 39.0 Pmol, 0.05 equiv.) in 1,4-dioxane (8 mL) was heated to 100 °C for 10 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 20:1). The title compound was obtained as a brown solid (200 mg, 54%).

[0224] Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(7-methoxy-6-(2- oxoethyl)imidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamide

[0225] A solution of (E)-N-cyclopropyl-5-(4-(6-(2-ethoxyvinyl)-7-methoxyimidazo[1,2- a]pyridin-3-yl)-1H-pyrazol-1-yl)-2-fluoro-4-methylbenzamide (200 mg, 421 Pmol, 1.00 equiv.) in THF (6 mL) and aqueous hydrochloric acid (6 M, 6 mL) was heated to 50 °C for 1 h. Subsequently, the solvent was removed under reduced pressure and the crude product was used in the next reaction without further purification.

[0226] Part IV – Synthesis of N-cyclopropyl-5-(4-(6-(2-(dimethylamino)ethyl)-7- methoxyimidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)-2-fluoro-4-methylbenzamide (compound 21)

[0227] A solution of N-cyclopropyl-2-fluoro-5-(4-(7-methoxy-6-(2-oxoethyl)imidazo[1,2-a]pyridin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamide (188 mg, 421Pmol, 1.00 equiv.), dimethylamine hydrochloride (171 mg, 2.11 mmol, 5.00 equiv.), andsodium triacetoxyborohydride (357 mg, 1.68 mmol, 4.00 equiv.) in DCM (4 mL) was heated to 40 °C for 8 h. The solution was filtered, and the residue was washed with MeOH (1 mL). Subsequently, the solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water, mobile phase B: ACN, gradient: 10-50% B in 10 min; wavelength: 254 nm). The title compound was obtained as a white solid (10.3 mg, 4.8%). LCMS (ESI) calculated forC26H30FN6O2(M+H)+: 477.2, found: 477.2.1H NMR (300 MHz, DMSO-d6) į^8.62 (s, 1H), 8.46 (s, 1H), 8.32 (s, 1H), 8.19 (s, 1H), 7.70 – 7.56 (m, 2H), 7.42 (d, J = 11.2 Hz, 1H), 7.00 (s, 1H), 3.89 (s, 3H), 2.88 – 2.81 (m, 1H), 2.77 – 2.71 (m, 2H), 2.48 – 2.44 (m, 2H), 2.33 (s, 3H), 2.17 (s, 6H), 0.74 – 0.67 (m, 2H), 0.59 – 0.53 (m, 2H).

[0228]

[0229] Example 14 – Preparation of Additional Bicyclic Compounds

[0230] Compounds in the table below were prepared based on experimental procedures described in Examples 8-13 and the detailed description.

[0231] Example 15 – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(6-(3- oxomorpholino)imidazo[1,2-a]pyridin-3-yl)-1H-1,2,3-triazol-1-yl)benzamide (compound 169); Prepared according to General Schemes 10 and 14

[0232] Part I – Synthesis of 6-bromo-3-((trimethylsilyl)ethynyl)imidazo[1,2-a]pyridine

[0233] A solution of 6-bromo-3-iodoimidazo[1,2-a]pyridine (34.0 g, 105 mmol, 1.00 equiv.), trimethylsilylacetylene (20.7 g, 211 mmol, 2.00 equiv.), Pd(dppf)Cl2 (2.31 g, 3.16 mmol, 0.03 equiv.), copper(I) iodide (0.80 g, 4.21 mmol, 0.04 equiv.), and dicyclohexylamine (22.9 g, 126 mmol, 1.20 equiv.) in ACN (680 mL) was heated to 80 °C for 3 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 5:1). The title compound was obtained as a light-yellow solid (24.9 g, 79%).

[0234] Part II – Synthesis of 6-bromo-3-ethynylimidazo[1,2-a]pyridine

[0235] K2CO3 (11.7 g, 84.6 mmol, 1.00 equiv.) was added to a solution of 6-bromo-3- ((trimethylsilyl)ethynyl)imidazo[1,2-a]pyridine (24.8 g, 84.6 mmol. 1.00 equiv.) in methanol (250 mL) and the mixture was stirred at room temperature for 2 h. Subsequently, insoluble byproducts were filtered off and washed with MeOH (10 mL). The solvent was removed under reduced pressure and the title compound was obtained as a brown solid (19.5 g, 99%), which was used in the next reaction without further purification.

[0236] Part III – Synthesis of 5-(4-(6-bromoimidazo[1,2-a]pyridin-3-yl)-1H-1,2,3- triazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide

[0237] A solution of 6-bromo-3-ethynylimidazo[1,2-a]pyridine (18.0 g, 81.4 mmol, 1.00 equiv.), 5-azido-N-cyclopropyl-2-fluoro-4-methylbenzamide (38.2 g, 163 mmol. 2.00 equiv., synthesized according to Part III of Example 3), copper(II) sulfate pentahydrate (6.10 g, 24.4 mmol, 0.30 equiv.), and sodium ascorbate (8.11 g, 40.7 mmol, 0.50 equiv.) in DMSO (360mL) was heated to 40 °C for 2 h under an inert atmosphere of nitrogen. Subsequently, insoluble materials were filtered off, washed with EtOAc (3 x 50 mL). Water (500 mL) was added, and the product was extracted with EtOAc (3 x 100 mL). The combined organic phases were washed with brine (3 x 50 mL), dried over MgSO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (DCM / MeOH 12:1). The title compound was obtained as a light-brown solid (22.1 g, 59%).

[0238] Part IV – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(6-(3- oxomorpholino)imidazo[1,2-a]pyridin-3-yl)-1H-1,2,3-triazol-1-yl)benzamide (compound 169)A solution of 5-(4-(6-bromoimidazo[1,2-a]pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamide (300 mg, 659 Pmol, 1.00 equiv.), morpholin-3- one (99.9 mg, 989 Pmol, 1.50 equiv.), copper(I) iodide (12.6 mg, 65.9 Pmol, 0.10 equiv.), 1,10-phenanthroline (23.8 mg, 132 Pmol, 0.20 equiv.), and K2CO3 (229 mg, 1.65 mmol, 2.50 equiv.) in DMSO (3 mL) was heated to 90 °C for 18 h under an inert atmosphere of nitrogen. Subsequently, insoluble materials were filtered off and washed with ACN (1 mL). The crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water, mobile phase B: ACN, gradient: 40-70% B in 30 min; wavelength: 210 nm). The title compound was obtained as a white solid (62.8 mg, 20%). LCMS (ESI) calculated for C24H23FN7O3(M+H)+: 476.2, found: 476.3.1H NMR (300 MHz, DMSO-d6) į 9.30 (s, 1H), 9.10 (s, 1H), 8.52 (d, J = 4.3 Hz, 1H), 8.12 (s, 1H), 7.83 – 7.74 (m, 2H), 7.53 - 7.45 (m, 2H), 4.27 (s, 2H), 4.09 – 4.00 (m, 2H), 3.83 (t, J = 5.1 Hz, 2H), 2.87 – 2.83 (m, 1H), 2.28 (s, 3H), 0.75 – 0.65 (m, 2H), 0.60 – 0.52 (m, 2H).

[0239] Example 16 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3-fluoro-1- methylpiperidin-4-yl)amino)pyridazin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamide (compound 162); Prepared according to General Scheme 20

[0240] Part I – Synthesis of tert-butyl (3R,4S)-4-((6-chloropyridazin-4-yl)amino)-3- fluoropiperidine-1-carboxylate

[0241] A solution of 5-bromo-3-chloropyridazine (820 mg, 4.24 mmol, 1.00 equiv.), tert-butyl (3R,4S)-4-amino-3-fluoropiperidine-1-carboxylate (1.11 g, 5.09 mmol, 1.20 equiv.), and K2CO3 (1.18 g, 8.48 mmol, 2.00 equiv.) in DMF (8.2 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a yellow solid (835 mg, 50%).

[0242] Part II – Synthesis of tert-butyl (3R,4S)-4-((6-(1-(5-(cyclopropylcarbamoyl)-4- fluoro-2-methylphenyl)-1H-pyrazol-4-yl)pyridazin-4-yl)amino)-3-fluoropiperidine-1- carboxylate

[0243] A solution of tert-butyl (3R,4S)-4-((6-chloropyridazin-4-yl)amino)-3- fluoropiperidine-1-carboxylate (835 mg, 2.52 mmol, 1.00 equiv.), N-cyclopropyl-2-fluoro-4- methyl-5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)benzamide (972 mg, 2.52 mmol, 1.00 equiv., synthesized according to Part III of Example 5), dichloro[4,5- dichloro-1,3-bis(2,6-di-3-pentylphenyl)imidazole-2-ylidene](2-methylpyridyl)palladium(II) (212 mg, 252 Pmol, 0.10 equiv.), and K3PO4 (1.07 g, 5.05 mmol, 2.00 equiv.) in 1,4-dioxane (8.4 mL) and water (840 mL) was heated to 80 °C for 1 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 5:1). The title compound was obtained as a brown solid (350 mg, 20%).

[0244] Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3- fluoropiperidin-4-yl)amino)pyridazin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamide

[0245] A solution of HCl in 1,4-dioxane (4 M, 5 mL) was added to a solution of tert- butyl (3R,4S)-4-((6-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-pyrazol-4- yl)pyridazin-4-yl)amino)-3-fluoropiperidine-1-carboxylate (350 mg, 632 Pmol, 1.00 equiv.) in DCM (3.5 mL) and the mixture was stirred at 0 °C for 30 min. Subsequently, DCM (4 mL) was added, and the precipitated product was filtered off, washed with DCM (3 x 1 mL), and dried under reduced pressure. The title compound was obtained as a brown solid (160 mg), which was used in the next reaction without further purification.

[0246] Part IV – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3-fluoro-1- methylpiperidin-4-yl)amino)pyridazin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamide (compound 162)

[0247] Paraformaldehyde (42.4 mg, 1.41 mmol, 4.00 equiv.) and sodium triacetoxyborohydride (299 mg, 1.41 mmol, 4.00 equiv.) were added to a solution of N- cyclopropyl-2-fluoro-5-(4-(5-(((3R,4S)-3-fluoropiperidin-4-yl)amino)pyridazin-3-yl)-1H- pyrazol-1-yl)-4-methylbenzamide (160 mg, 353 µmol, 1.00 equiv.) in MeOH (3 mL) and the mixture was stirred at room temperature for 3 h. Insoluble byproducts were filtered off and the solvent was removed under reduced pressure. The crude product was purified by preparative HPLC (column: XSelect Prep OBD C18, 30 × 150 mm, 5 µm; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN; flow rate: 60 mL / min; gradient: 5% B for 2 min, then 5-15% B in 2.5 min, then 15-45% B in 10 min; wavelength: 220 nm; RT1: 7.27 min). The title compound was obtained as a white solid (25.0 mg, 15%). LCMS (ESI) calculated for C24H28F2N7O (M+H)+: 468.2, found: 468.4.1H NMR (400 MHz, DMSO-d6) į 8.69 (s, 1H), 8.58 (d, J = 2.7 Hz, 1H), 8.47 (d, J = 4.1 Hz, 1H), 8.34 (s, 1H), 7.61 (d, J = 6.6 Hz, 1H), 7.41 (d, J = 10.9 Hz, 1H), 7.07 – 6.98 (m, 2H), 4.79 (d, J = 49.6 Hz, 1H), 3.74 – 3.67 (m, 1H), 3.07 – 3.01 (m, 1H), 2.89 – 2.75 (m, 2H), 2.34 – 2.29 (m, 4H), 2.23 (s, 3H), 2.14 – 2.08 (m, 1H), 1.87 – 1.74 (m, 2H), 0.70 (td, J = 7.1, 4.7 Hz, 2H), 0.60 – 0.52 (m, 2H).

[0248] Example 17 – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5- ((tetrahydro-2H-pyran-4-yl)sulfonyl)pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 252); Prepared according to General Scheme 21

[0249] Part I – Synthesis of S-(tetrahydro-2H-pyran-4-yl) ethanethioateA solution of 4-chlorotetrahydro-2H-pyran (1.00 g, 8.29 mmol, 1.00 equiv.) and potassium thioacetate (1.42 g, 12.4 mmol, 1.50 equiv.) in DMF (10 mL) was heated to 100 °C overnight. Subsequently, the solvent was removed under reduced pressure. The title compound was obtained as a red oil (870 mg), which was used in the next reaction without further purification.

[0250] Part II – Synthesis of 5-(4-(5-bromopyridin-3-yl)-1H-pyrazol-1-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamide

[0251] A solution of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)-1H-pyrazol-1-yl)benzamide (977 mg, 2.54 mmol, 1.20 equiv., synthesized according to Part III of Example 5), 3-bromo-5-iodopyridine (600 mg, 2.11 mmol, 1.00 equiv.), Pd(dppf)Cl2 (155 mg, 211 Pmol, 0.10 equiv.), and K2CO3 (876 mg, 6.34 mmol, 3.00 equiv.) in 1,4-dioxane (9.6 mL) and water (2.4 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 2:1). The title compound was obtained as a yellow solid (760 mg, 81%).

[0252] Part III – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((tetrahydro-2H- pyran-4-yl)thio)pyridin-3-yl)-1H-pyrazol-1-yl)benzamide

[0253] A solution of 5-(4-(5-bromopyridin-3-yl)-1H-pyrazol-1-yl)-N-cyclopropyl-2- fluoro-4-methylbenzamide (250 mg, 602 Pmol, 1.00 equiv.), S-(tetrahydro-2H-pyran-4-yl) ethanethioate (193 mg, 1.20 mmol, 2.00 equiv.), Pd2(dba)3 (55.1 mg, 60.2 Pmol, 0.10equiv.), Xantphos (34.8 mg, 60.2 Pmol, 0.10 equiv.), and triethylamine (183 mg, 1.81 mmol, 3.00 equiv.) in 1,4-dioxane (2.5 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (EtOAc). The title compound was obtained as a brown solid (250 mg, 87%).

[0254] Part IV – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((tetrahydro-2H- pyran-4-yl)sulfonyl)pyridin-3-yl)-1H-pyrazol-1-yl)benzamide (compound 252)3-Chloroperbenoic acid (458 mg, 2.62 mmol, 6.00 equiv.) was added to a solution of N- cyclopropyl-2-fluoro-4-methyl-5-(4-(5-((tetrahydro-2H-pyran-4-yl)thio)pyridin-3-yl)-1H- pyrazol-1-yl)benzamide (200 mg, 442 Pmol, 1.00 equiv.) in DCM (2 mL) and the mixture was stirred at room temperature overnight. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water, mobile phase B: ACN, gradient: 10-50% B in 40 min; wavelength: 210 nm). The title compound was obtained as a light-yellow solid (15 mg, 7.0%). LCMS (ESI) calculated for C24H26FN4O4S (M+H)+: 485.2, found: 485.3.1H NMR (300 MHz, DMSO-d6) į 9.34 (d, J = 2.1 Hz, 1H), 8.91 (s, 1H), 8.83 (d, J = 2.1 Hz, 1H), 8.56 – 8.43 (m, 3H), 7.63 (d, J = 6.7 Hz, 1H), 7.42 (d, J = 10.9 Hz, 1H), 3.97 – 3.91 (m, 2H), 3.76 – 3.68 (m, 1H), 3.29 - 3.28 (m, 2H), 2.87 – 2.81 (m, 1H), 2.32 (s, 3H), 1.80 – 1.76 (m, 2H), 1.71 – 1.54 (m, 2H), 0.77 – 0.65 (m, 2H), 0.60 – 0.52 (m, 2H).

[0255] Example 18– Preparation of Additional Pyridine Compounds

[0256] Compounds in the table below were prepared based on experimental procedures described in Examples 1-6 and the detailed description.

[0257] Example 19– Preparation of Additional Bicyclic Compounds

[0258] Compounds in the table below were prepared based on the experimental procedures described in Examples 8-13 and the detailed description.

[0259] Example 20 – Synthesis of 5-(4-(2-chloro-5-(((3R,4S)-3-fluoro-1-(oxetan-3- yl)piperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-N-cyclopropyl-2-fluoro-4- methylbenzamide (compound 309); Prepared according to General Scheme 33Part I – Synthesis of tert-butyl (3R,4S)-4-((5-bromo-6-chloropyridin-3-yl)amino)-3- fluoropiperidine-1-carboxylateA solution of 3-bromo-2-chloro-5-iodopyridine (1.96 g, 6.17 mmol, 1.00 equiv.), tert-butyl (3R,4S)-4-amino-3-fluoropiperidine-1-carboxylate (1.48 g, 6.79 mmol, 1.10 equiv.), Cs2CO3 (4.02 g, 12.3 mmol, 2.00 equiv.), and GPhos Pd G6 (0.58 g, 617 Pmol, 0.10 equiv.) in toluene (29 mL) was heated to 100 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solution was filtered, and the solids were washed with EtOAc (5 mL). The organic phases were combined, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 3:1). The title compound was obtained as a gray solid (1.50 g, 60%). Part II – Synthesis of tert-butyl (3R,4S)-4-((6-chloro-5-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)pyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylateA solution of tert-butyl (3R,4S)-4-((5-bromo-6-chloropyridin-3-yl)amino)-3- fluoropiperidine-1-carboxylate (1.50 g, 3.66 mmol, 1.00 equiv.), bis(pinacolato)diboron (2.80 g, 11.0 mmol, 3.00 equiv.), potassium acetate (0.72 g, 7.34 mmol, 2.00 equiv.), andXPhos Pd G2 (433 mg, 550 Pmol, 0.15 equiv.) in 1,4-dioxane (15 mL) was heated to 90 °C for 3 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 10:1). The title compound was obtained as a dark yellow solid (302 mg, 15%). Part III – Synthesis of tert-butyl (3R,4S)-4-((6-chloro-5-(1-(5-(cyclopropylcarbamoyl)-4- fluoro-2-methylphenyl)-1H-imidazol-4-yl)pyridin-3-yl)amino)-3-fluoropiperidine-1- carboxylateA solution of tert-butyl (3R,4S)-4-((6-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2- yl)pyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (300 mg, 658 Pmol, 1.00 equiv.),5-(4-bromo-1H-imidazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide (223 mg, 658Pmol, 1.00 equiv., prepared according to the procedure described in Example 10), K2CO3(273 mg, 1.97 mmol, 3.00 equiv.), and Pd(dppf)Cl2(48.2 mg, 65.8 Pmol, 0.10 equiv.) in 1,4- dioxane (4.8 mL) and water (1.2 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 10:1). The title compound was obtained as a dark gray solid (312 mg, 65%).Part IV – Synthesis of 5-(4-(2-chloro-5-(((3R,4S)-3-fluoropiperidin-4-yl)amino)pyridin-3- yl)-1H-imidazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamideA solution of HCl in 1,4-dioxane (4 M, 3 mL) was added to a solution of tert-butyl (3R,4S)- 4-((6-chloro-5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-imidazol-4- yl)pyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (300 mg, 511 Pmol, 1.00 equiv.) in DCM (3 mL) and the mixture was stirred at room temperature for 1 h. Subsequently, the solution was diluted with DCM (5 mL), and the precipitated product was filtered off, washed with DCM (1 mL), and dried under reduced pressure. The title compound was obtained as a white solid, which was used in the next reaction without further purification. Part V – Synthesis of 5-(4-(2-chloro-5-(((3R,4S)-3-fluoro-1-(oxetan-3-yl)piperidin-4- yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide (compound 309)Sodium cyanoborohydride (155 mg, 2.46 mmol, 4.00 equiv.) was added to a solution of 5- (4-(2-chloro-5-(((3R,4S)-3-fluoropiperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamide (300 mg, 616 Pmol, 1.00 equiv.) and oxetan-3-one (178 mg, 2.46 mmol, 4.00 equiv.) in MeOH (3 mL) and the mixture was stirred overnight at room temperature. Subsequently, the solution was filtered, and the remaining solids were washed with MeOH (1 mL). The solvent of the combined organic phases was removed under reduced pressure and the crude product was purified by preparative HPLC (column:YMC-Actus Triart C18 ExRS, 30 × 150 mm, 5 µm; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN; flow rate: 60 mL / min; gradient: 5% B for 2 min, then 12-42% B in 10 min; wavelength: 220 nm; RT1: 9.9 min). The title compound was obtained as a light-yellow solid (11.0 mg, 4.0% over 2 steps). LCMS (ESI) calculated for C27H30ClF2N6O2 (M+H)+: 543.2, found: 543.3.1H NMR (300 MHz, DMSO-d6) į 8.44 (d, J = 4.4 Hz, 1H), 8.04 – 7.98 (m, 2H), 7.88 – 7.78 (m, 2H), 7.58 (d, J = 6.7 Hz, 1H), 7.43 (d, J = 11.0 Hz, 1H), 6.16 (d, J = 8.8 Hz, 1H), 4.82 (d, J = 48.0 Hz, 1H), 4.55 (t, J = 6.4 Hz, 2H), 4.44 (dt, J = 16.4, 6.1 Hz, 2H), 3.67 – 3.60 (m, 1H), 3.55 – 3.45 (m, 1H), 2.95 – 2.86 (m, 1H), 2.86 – 2.80 (m, 1H), 2.80 – 2.70 (m, 1H), 2.33 – 2.20 (m, 4H), 2.17 – 2.08 (m, 1H), 1.80 – 1.74 (m, 2H), 0.70 (dt, J = 7.0, 3.2 Hz, 2H), 0.60 – 0.50 (m, 2H).

[0260] Example 21 – Synthesis of N-cyclopropyl-5-(4-(5-(((3R,4S)-1-ethyl-3- fluoropiperidin-4-yl)amino)-2-fluoropyridin-3-yl)-1H-1,2,3-triazol-1-yl)-2-fluoro-4- methylbenzamide (compound 269); Prepared according to General Scheme 30Part I – Synthesis of 5-bromo-2-fluoro-3-((trimethylsilyl)ethynyl)pyridineA solution of 5-bromo-2-fluoro-3-iodopyridine (7.00 g, 23.2 mmol, 1.00 equiv.), trimethylsilylacetylene (2.28 g, 23.2 mmol, 1.00 equiv.), dicyclohexylamine (2.52 g, 13.9 mmol, 0.60 equiv.), CuI (1.77 g, 9.28 mmol, 0.40 equiv.), and Pd(dppf)Cl2(1.70 g, 2.32 mmol, 0.10 equiv.) in ACN (140 mL) was heated to 80 °C for 3 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure, and the crude product was purified by column chromatography (petroleum ether / EtOAc 3:1). The title compound was obtained as a white solid (4.76 g, 75%).Part II – Synthesis of 5-(4-(5-bromo-2-fluoropyridin-3-yl)-1H-1,2,3-triazol-1-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamideSodium ascorbate (880 mg, 4.41 mmol, 1.00 equiv.) and tetrabutylammonium fluoride trihydrate (700 mL, 2.20 mmol, 0.50 equiv.) were added to a solution of 5-bromo-2-fluoro- 3-((trimethylsilyl)ethynyl)pyridine (1.20 g, 4.41 mmol, 1.00 equiv.), 5-azido-N-cyclopropyl- 2-fluoro-4-methylbenzamide (1.03 g, 4.41 mmol, 1.00 equiv.), CuSO4 (700 mg, 4.41 mmol, 1.00 equiv.), and K2CO3 (610 mg, 4.41 mmol, 1.00 equiv.) in THF (9 mL) and water (6 mL). The mixture was stirred at room temperature for 2 h. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a white solid (980 mg, 51%). Part III – Synthesis of tert-butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2- methylphenyl)-1H-1,2,3-triazol-4-yl)-6-fluoropyridin-3-yl)amino)-3-fluoropiperidine-1- carboxylateA solution of 5-(4-(5-bromo-2-fluoropyridin-3-yl)-1H-1,2,3-triazol-1-yl)-N-cyclopropyl-2- fluoro-4-methylbenzamide (980 mg, 2.26 mmol, 1.00 equiv.), tert-butyl (3R,4S)-4-amino-3- fluoropiperidine-1-carboxylate (542 mg, 2.48 mmol, 1.10 equiv.), Cs2CO3 (2.21 g, 6.77 mmol, 3.00 equiv.), and dichloro[4,5-dichloro-1,3-bis(2,6-di-3-pentylphenyl)imidazole-2- ylidene](2-methylpyridyl)palladium(II) (190 mg, 226 Pmol, 0.10 equiv.) in 1,4-dioxane (20 mL) was heated to 90 °C overnight under an inert atmosphere of nitrogen. Subsequently, thesolvent was removed under reduced pressure, and the crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a white solid (1.34 g, 70%). Part IV – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin- 4-yl)amino)pyridin-3-yl)-1H-1,2,3-triazol-1-yl)-4-methylbenzamideA solution of HCl in 1,4-dioxane (4 M, 13 mL) was added to a solution of tert-butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-1,2,3-triazol-4- yl)-6-fluoropyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (1.30 g, 2.27 mmol, 1.00 equiv.) in DCM (13 mL) and the mixture was stirred at room temperature for 1 h. Subsequently, the solution was diluted with DCM (20 mL), and the precipitated product was filtered off, washed with DCM (3 x 1 mL), and dried under reduced pressure. The title compound was obtained as a white solid (1.1 g, 85%), which was used in the next reaction without further purification. Part V – Synthesis of N-cyclopropyl-5-(4-(5-(((3R,4S)-1-ethyl-3-fluoropiperidin-4- yl)amino)-2-fluoropyridin-3-yl)-1H-1,2,3-triazol-1-yl)-2-fluoro-4-methylbenzamide (compound 269)Sodium cyanoborohydride (96.0 mg, 1.53 mmol, 4.00 equiv.) was added to a solution of N- cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin-4-yl)amino)pyridin-3-yl)- 1H-1,2,3-triazol-1-yl)-4-methylbenzamide (180 mg, 382 Pmol, 1.00 equiv.) andacetaldehyde (67.3 mg, 1.53 mmol, 4.00 equiv.) in MeOH (3.6 mL) and the mixture was stirred at room temperature for 2 h. Subsequently, the solution was filtered, and the remaining solids were washed with MeOH (1 mL). The solvent of the combined organic phases was removed under reduced pressure and the crude product was purified by reversed- phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% formic acid), mobile phase B: MeOH, gradient: 20-50% B in 30 min; wavelength: 210 nm). The title compound was obtained as a white solid (35.8 mg, 18%). LCMS (ESI) calculated for C25H29F3N7O (M+H)+: 500.2, found: 500.3.1H NMR (300 MHz, DMSO-d6) į^8.77 (d, J = 3.3 Hz, 1H), 8.48 (d, J = 4.5 Hz, 1H), 7.99 (dd, J = 8.3, 3.0 Hz, 1H), 7.72 – 7.65 (m, 2H), 7.49 (d, J = 10.8 Hz, 1H), 6.01 (d, J = 9.0 Hz, 1H), 4.81 (d, J = 49.2 Hz, 1H), 3.67 – 3.56 (m, 1H), 3.11 – 3.05 (m, 1H), 2.91 – 2.76 (m, 2H), 2.42 – 2.35 (m, 2H), 2.22 – 2.16 (m, 4H), 2.18 – 2.07 (m, 1H), 1.81 – 1.68 (m, 2H), 1.01 (t, J = 7.1 Hz, 3H), 0.74 – 0.68 (m, 2H), 0.65 – 0.53 (m, 2H).

[0261] Example 22 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3- hydroxy-1-isopropylpiperidin-4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)-4- methylbenzamide (compound 229); Prepared according to General Scheme 33Part I – Synthesis of tert-butyl (3R,4S)-4-amino-3-((tert-butyldimethylsilyl)oxy)piperidine- 1-carboxylateA solution of tert-butyl (3R,4S)-4-amino-3-hydroxypiperidine-1-carboxylate (300 mg, 1.39 mmol, 1.00 equiv.), tert-butyldimethylsilyl chloride (314 mg, 2.08 mmol, 1.50 equiv.),DMAP (50.8 mg, 416 mmol, 0.30 equiv.), and triethylamine (421 mg, 4.16 mmol, 3.00 equiv.) in DCM (3 mL) was stirred overnight at room temperature. Subsequently, water (5 mL) was added, and the organic phase was separated. The aqueous phase was extracted with DCM (10 mL), and the combined organic phases were dried over Na2SO4. The solvent was removed under reduced pressure. The title compound was obtained as a yellow liquid (564 mg) which was used in the next reaction without further purification. Part II – Synthesis of tert-butyl (3R,4S)-3-((tert-butyldimethylsilyl)oxy)-4-((5-chloro-6- fluoropyridin-3-yl)amino)piperidine-1-carboxylateA solution of tert-butyl (3R,4S)-4-amino-3-((tert-butyldimethylsilyl)oxy)piperidine-1- carboxylate (3.46 g, 10.5 mmol, 1.10 equiv.), 5-bromo-3-chloro-2-fluoropyridine (2.00 g, 9.50 mmol, 1.00 equiv.), Cs2CO3(6.19 g, 19.0 mmol, 2.00 equiv.), and dichloro[4,5- dichloro-1,3-bis(2,6-di-3-pentylphenyl)imidazole-2-ylidene](2-methylpyridyl)palladium(II) (930 mg, 950 Pmol, 0.10 equiv.) in toluene (20 mL) was heated to 100 °C overnight under an inert atmosphere of nitrogen. The crude product was purified by column chromatography (petroleum ether / EtOAc 10:1). The title compound was obtained as a light-yellow solid (500 mg, 11%). Part III – Synthesis of tert-butyl (3R,4S)-3-((tert-butyldimethylsilyl)oxy)-4-((5-(1-(5- (cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-pyrazol-4-yl)-6-fluoropyridin-3- yl)amino)piperidine-1-carboxylateA solution of tert-butyl (3R,4S)-3-((tert-butyldimethylsilyl)oxy)-4-((5-chloro-6- fluoropyridin-3-yl)amino)piperidine-1-carboxylate (500 mg, 1.09 mmol, 1.00 equiv.), N- cyclopropyl-2-fluoro-4-methyl-5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H- pyrazol-1-yl)benzamide (502 mg, 1.30 mmol, 1.20 equiv., prepared according to the procedure described in Example 5), K3PO4 (461 mg, 2.17 mmol, 2.00 equiv.), and dichloro[4,5-dichloro-1,3-bis(2,6-di-3-pentylphenyl)imidazole-2-ylidene](2- methylpyridyl)palladium(II) (91.4 mg, 109 Pmol, 0.10 equiv.) in 1,4-dioxane (4 mL) and water (1 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. The crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a yellow solid (430 mg, 49%). Part IV – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3- hydroxypiperidin-4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamideA solution of HCl in 1,4-dioxane (4 M, 4.3 mL) was added to a solution of tert-butyl (3R,4S)-3-((tert-butyldimethylsilyl)oxy)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2- methylphenyl)-1H-pyrazol-4-yl)-6-fluoropyridin-3-yl)amino)piperidine-1-carboxylate (430 mg, 630 Pmol, 1.00 equiv.) in DCM (4.3 mL) and the mixture was stirred at room temperature for 1 h. Subsequently, the solution was diluted with DCM (5 mL), and the precipitated product was filtered off, washed with DCM (1 mL), and dried under reducedpressure. The title compound was obtained as a brown solid (190 mg, 58%), which was used in the next reaction without further purification. Part V – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-hydroxy-1- isopropylpiperidin-4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamide (compound 229)Sodium cyanoborohydride (137 mg, 2.18 mmol, 4.00 equiv.) was added to a solution of N- cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-hydroxypiperidin-4-yl)amino)pyridin-3- yl)-1H-pyrazol-1-yl)-4-methylbenzamide (340 mg, 544 Pmol, 1.00 equiv.) and acetone (316 mg, 5.44 mmol, 10.0 equiv.) in MeOH (6.8 mL) and the mixture was stirred overnight at room temperature. Subsequently, the solution was filtered, and the remaining solids were washed with MeOH (1 mL). The solvent of the combined organic phases was removed under reduced pressure and the crude product was purified by preparative HPLC (column: XBridge Prep Phenyl OBD, 19 × 250 mm, 5 µm; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: MeOH; flow rate: 25 mL / min; gradient: 5% B for 2 min, then 5-40% B in 2.5 min, then 40-70% B in 20 min; wavelength: 220 nm; RT1: 19 min). The title compound was obtained as a light-green solid (41.8 mg, 14%). LCMS (ESI) calculated for C27H33F2N6O2 (M+H)+: 511.3, found: 511.3.1H NMR (300 MHz, DMSO-d6) į^8.50 – 8.46 (m, 2H), 8.17 (d, J = 1.8 Hz, 1H), 7.64 – 7.47 (m, 3H), 7.40 (d, J = 11.1 Hz, 1H), 5.27 (d, J = 8.6 Hz, 1H), 4.32 (d, J = 6.5 Hz, 1H), 3.79 – 3.75 (m, 1H), 3.47 – 3.41 (m, 1H), 2.84 (td, J = 7.3, 3.7 Hz, 1H), 2.75 – 2.64 (m, 3H), 2.47 – 2.28 (m, 5H), 1.70 – 1.64 (m, 2H), 0.98 (d, J = 6.6 Hz, 6H), 0.70 (td, J = 7.2, 4.7 Hz, 2H), 0.65 – 0.50 (m, 2H).

[0262] Example 23 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3- fluoro-1-(oxetan-3-yl)piperidin-4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)-4- methylbenzamide (compound 192); Prepared according to General Scheme 33Part I – Synthesis of tert-butyl (3R,4S)-4-((5-chloro-6-fluoropyridin-3-yl)amino)-3- fluoropiperidine-1-carboxylateA solution of tert-butyl (3R,4S)-4-amino-3-fluoropiperidine-1-carboxylate (75.9 g, 348 mmol, 1.10 equiv.), 5-bromo-3-chloro-2-fluoropyridine (66.0 g, 314 mmol, 1.00 equiv.), Cs2CO3 (204 g, 627 mmol, 2.00 equiv.), and GPhos Pd G6 (14.9 g, 15.7 mmol, 0.05 equiv.) in toluene (990 mL) was heated to 100 °C overnight under an inert atmosphere of nitrogen. The solution was filtered, and the remaining solids were washed with EtOAc (50 mL). The solvent of the combined organic phases was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 3:1). The title compound was obtained as an off-white solid (61.9 g, 54%). Part II – Synthesis of tert-butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2- methylphenyl)-1H-pyrazol-4-yl)-6-fluoropyridin-3-yl)amino)-3-fluoropiperidine-1- carboxylateA solution of tert-butyl (3R,4S)-4-((5-chloro-6-fluoropyridin-3-yl)amino)-3- fluoropiperidine-1-carboxylate (1.10 g, 3.16 mmol, 1.00 equiv.), N-cyclopropyl-2-fluoro-4- methyl-5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)benzamide (1.28 g, 3.32 mmol, 1.05 equiv., prepared according to the procedure described in Part III of Example 5), K3PO4 (1.34 mg, 6.33 mmol, 2.00 equiv.), and dichloro[4,5-dichloro-1,3-bis(2,6-di-3-pentylphenyl)imidazole-2-ylidene](2-methylpyridyl)palladium(II) (250 mg, 316Pmol, 0.10 equiv.) in 1,4-dioxane (22 mL) and water (5.5 mL) was heated to 80 °Covernight under an inert atmosphere of nitrogen. The crude product was purified by column chromatography (DCM / MeOH 100:1). The title compound was obtained as a dark-yellow oil (1.1 g, 61%). Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin- 4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamideA solution of HCl in 1,4-dioxane (4 M, 10 mL) was added to a solution of tert-butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-pyrazol-4-yl)-6- fluoropyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (1.00 g, 1.75 mmol, 1.00 equiv.) in DCM (10 mL) and the mixture was stirred at room temperature for 1 h. Subsequently, the solvent was removed under reduced pressure. The title compound was obtained as a brown solid, which was used in the next reaction without further purification. Part IV – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoro-1- (oxetan-3-yl)piperidin-4-yl)amino)pyridin-3-yl)-1H-pyrazol-1-yl)-4-methylbenzamide (compound 192)Sodium cyanoborohydride (107 mg, 1.70 mmol, 4.00 equiv.) was added to a solution of N- cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin-4-yl)amino)pyridin-3-yl)- 1H-pyrazol-1-yl)-4-methylbenzamide (200 mg, 425 Pmol, 1.00 equiv.) and oxetan-3-one (123 mg, 1.70 mmol, 4.00 equiv.) in MeOH (2 mL) and the mixture was stirred overnight at room temperature. Subsequently, the solution was filtered, and the remaining solids were washed with MeOH (1 mL). The solvent of the combined organic phases was removed under reduced pressure and the crude product was purified by preparative HPLC (column: GreenSep Basic, 30 × 150 mm, 5 µm; mobile phase A: supercritical CO2, mobile phase B: MeOH (2 mM NH3); flow rate: 75 mL / min; column temperature: 35 °C; back pressure: 100 bar; isocratic separation with 20% B; wavelength: 254 nm; RT1: 4.72 min). The title compound was obtained as a white solid (43.2 mg, 19%). LCMS (ESI) calculated for C27H30F3N6O2 (M+H)+: 527.2, found: 527.3.1H NMR (300 MHz, DMSO-d6) į 8.51 – 8.41 (m, 2H), 8.18 (d, J = 1.8 Hz, 1H), 7.64 – 7.51 (m, 3H), 7.40 (d, J = 11.0 Hz, 1H), 5.79 (d, J = 9.3 Hz, 1H), 4.81 (d, J = 48.0 Hz, 1H), 4.60 – 4.50 (m, 2H), 4.48 – 4.38 (m, 2H), 3.85 – 3.52 (m, 1H), 3.50 (q, J = 6.4 Hz, 1H), 2.97 (t, J = 10.5 Hz, 1H), 2.94 (t, J = 11.5 Hz, 1H), 2.84 (tt, J = 7.2, 3.9 Hz, 1H), 2.28 (s, 3H), 2.27 – 2.05 (m, 2H), 1.78 – 1.70 (m, 2H), 0.70 (td, J = 7.2, 4.8 Hz, 2H), 0.66 – 0.50 (m, 2H).

[0263] Example 24 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3- fluoropiperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-4-methylbenzamide (compound 267); Prepared according to General Scheme 32Part I – Synthesis of tert-butyl (3R,4S)-3-fluoro-4-((6-fluoro-5-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)pyridin-3-yl)amino)piperidine-1-carboxylateA solution of tert-butyl (3R,4S)-4-((5-chloro-6-fluoropyridin-3-yl)amino)-3- fluoropiperidine-1-carboxylate (61 g, 175 mmol, 1.00 equiv.), bis(pinacolato)diboron (89.1 g, 351 mmol, 2.00 equiv.), potassium acetate (34.4 g, 351 mmol, 2.00 equiv.), and XPhos Pd G2 (13.8 g, 17.5 mmol, 0.10 equiv.) in 1,4-dioxane (610 mL) was heated to 90 °C for 1 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 5:1). The title compound was obtained as an off-white solid (57.5 g, 70%). Part II – Synthesis of tert-butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2- methylphenyl)-1H-imidazol-4-yl)-6-fluoropyridin-3-yl)amino)-3-fluoropiperidine-1- carboxylateA solution of tert-butyl (3R,4S)-3-fluoro-4-((6-fluoro-5-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)pyridin-3-yl)amino)piperidine-1-carboxylate (21.5 g, 48.9 mmol, 1.00equiv.), 5-(4-bromo-1H-imidazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamide (16.6 g, 48.9 mmol, 1.00 equiv.), K2CO3 (20.3 g, 147 mmol, 3.00 equiv.), and Pd(dppf)Cl2 (3.58 g, 4.89 mmol, 0.10 equiv.) in 1,4-dioxane (172 mL) and water (43 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure, and the crud product was purified by column chromatography (DCM / MeOH 50:1). The title compound was obtained as a black oil (21.1 g, 72%). Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin- 4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-4-methylbenzamide (compound 267)A solution of HCl in 1,4-dioxane (4 M, 2 mL) was added to a solution of tert-butyl (3R,4S)- 4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-imidazol-4-yl)-6- fluoropyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (200 mg, 350 Pmol, 1.00 equiv.) in DCM (2 mL) and the mixture was stirred at room temperature for 1 h. Subsequently, the solvent was removed under reduced pressure. The crude product was purified by preparative HPLC (column: XSelect Prep OBD C18, 30 × 150 mm, 5 µm; mobile phase A: water (0.1% formic acid), mobile phase B: ACN; flow rate: 60 mL / min; gradient: 6% B for 1 min, then 6-25% B in 10 min; wavelength: 220 nm; RT1: 8 min). The title compound was obtained as a white solid (53.4 mg, 32%). LCMS (ESI) calculated for C24H26F3N6O (M+H)+: 471.2, found: 471.3.1H NMR (400 MHz, DMSO-d6) į^8.43 (d, J = 4.3 Hz, 1H), 8.03 (d, J = 1.2 Hz, 1H), 7.90 (dd, J = 8.5, 3.0 Hz, 1H), 7.70 (dd, J = 3.9, 1.3 Hz, 1H), 7.57 (d, J = 6.6 Hz, 1H), 7.51 (t, J = 2.6 Hz, 1H), 7.41 (d, J = 10.9 Hz, 1H), 5.93 (d, J = 9.1 Hz, 1H), 4.78 (d, J = 48.0 Hz, 1H), 3.73 – 3.65 (m, 1H), 3.26 – 3.20 (m, 1H), 3.05 – 3.02 (m, 1H), 3.00 – 2.93 (m, 1H), 2.91 – 2.81 (m, 1H), 2.71 (t, J = 11.5 Hz, 1H), 2.22 (s, 3H), 1.73 – 1.68 (m, 2H), 0.70 (td, J = 7.1, 4.7 Hz, 2H), 0.59 – 0.51 (m, 2H).

[0264] Example 25 – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3- fluoro-1-(oxetan-3-yl)piperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-4- methylbenzamide (compound 199); Prepared according to General Scheme 28Part I – Synthesis of 2-bromo-1-(5-bromo-2-fluoropyridin-3-yl)ethan-1-oneBromine (517 PL, 10.1 mmol, 1.10 equiv.) was added dropwise to a solution of 1-(5-bromo- 2-fluoropyridin-3-yl)ethan-1-one (2.00 g, 9.17 mmol, 1.00 equiv.) in HBr / AcOH (33%, 100 mL) and AcOH (5 mL) and the mixture was stirred at room temperature for 3 h. Subsequently, water was added, and the pH of the solution was brought to ~7 with a saturated aqueous NaHCO3solution. The product was extracted with CH2Cl2(2 x 50 mL), and the combined organic phases were washed with brine and dried over Na2SO4. The solvent was removed under reduced pressure. The title compound was obtained as a white solid (2.37 g, 87%), which was used in the next reaction without further purification. Part II – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-nitrobenzamideA solution of 2-fluoro-4-methyl-5-nitrobenzoic acid (3.08 g, 15.4 mmol, 1.00 equiv.), cyclopropylamine (1.31 mL, 18.5 mmol, 1.20 equiv.), 1-methylimidazole (3.69 mL, 46.3 mmol, 3.00 equiv.), and TCFH (6.50 g, 23.2 mmol, 1.50 equiv.) in DMF (20 mL) was stirredat room temperature for 1 h. Subsequently, water (90 mL) was added, and the precipitated product was filtered off and washed with water. The product was dissolved in CH2Cl2, and the organic phase was washed with brine and dried over Na2SO4. The solvent was removed under reduced pressure. The title compound was obtained as a white solid (3.29 g, 89% yield), which was used in the next reaction without further purification. Part III – Synthesis of 5-amino-N-cyclopropyl-2-fluoro-4-methylbenzamideIron powder (3.86 g, 69.1 mmol, 5.00 equiv.) and ammonium chloride (2.96 g, 55.2 mmol, 4.00 equiv.) were added to a solution of N-cyclopropyl-2-fluoro-4-methyl-5-nitrobenzamide (3.29 g, 13.8 mmol, 1.00 equiv.) in ethanol (110 mL) and water (40 mL). Subsequently, concentrated hydrochloric acid (1 mL) was added and the mixture was heated to 80 °C for 1 h. The pH of the aqueous phase was adjusted to ~10 with a saturated aqueous NaHCO3solution. Insoluble byproducts were filtered off and the solvent was partially removed under reduced pressure (ca. 40 mL left). Water and CH2Cl2 were added and the organic phase was separated, washed with brine, and dried over Na2SO4. The solvent was removed under reduced pressure. The title compound was obtained as a brown solid (2.64 g, 92% yield), which was used in the next reaction without further purification. Part IV – Synthesis of 5-((2-(5-bromo-2-fluoropyridin-3-yl)-2-oxoethyl)amino)-N- cyclopropyl-2-fluoro-4-methylbenzamideA solution of 5-amino-N-cyclopropyl-2-fluoro-4-methylbenzamide (1.40 g, 6.72 mmol, 1.00 equiv.), 2-bromo-1-(5-bromo-2-fluoropyridin-3-yl)ethan-1-one (2.40 g, 8.07 mmol, 1.20 equiv.), and NaHCO3(847 mg, 10.1 mmol, 1.50 equiv.) in DMSO (15 mL) was stirred at room temperature for 2 h. Subsequently, water was added, and the product was extracted with CH2Cl2. The organic phase was washed with brine, dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was treated with hot MeOH and,after allowing the mixture to cool down to room temperature, the precipitated product was filtered off and washed with small amounts of MeOH and Et2O. The title compound was obtained as a yellow solid (1.55 g, 54% yield), which was used in the next reaction without further purification. Part V – Synthesis of 5-(4-(5-bromo-2-fluoropyridin-3-yl)-2-thioxo-2,3-dihydro-1H- imidazol-1-yl)-N-cyclopropyl-2-fluoro-4-methylbenzamideConcentrated hydrochloric acid (200 PL) was added to a solution of 5-((2-(5-bromo-2- fluoropyridin-3-yl)-2-oxoethyl)amino)-N-cyclopropyl-2-fluoro-4-methylbenzamide (1.53 g, 3.61 mmol, 1.00 equiv.) and potassium thiocyanate (351 mg, 3.61 mmol, 1.00 equiv.) in MeOH (20 mL) and the mixture was heated to 60 °C for 1 h. Subsequently, another 70 mg of potassium thiocyanate (0.20 equiv.) and 100 PL of concentrated hydrochloric acid were added, and the mixture was stirred at 60 °C for another hour. The suspension was diluted with MeOH, and the precipitated product was filtered off, washed with small amounts of MeOH and CH2Cl2, and dried under reduced pressure. The title compound was obtained as a white solid (1.62 g, 96% yield), which was used in the next reaction without further purification. Part VI – Synthesis of 5-(4-(5-bromo-2-fluoropyridin-3-yl)-1H-imidazol-1-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamideAn aqueous solution of hydrogen peroxide (30%, 1.60 mL) was added dropwise to a solution of 5-(4-(5-bromo-2-fluoropyridin-3-yl)-2-thioxo-2,3-dihydro-1H-imidazol-1-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamide (1.61 g, 3.45 mmol, 1.00 equiv.) in CH2Cl2(21 mL) and AcOH (16 mL) at 0 °C. The solution was stirred for 2 h at this temperature. Subsequently, another 320 PL of hydrogen peroxide (30%) were added and stirring wascontinued for another hour at 0 °C. The mixture was diluted with CH2Cl2and a saturated aqueous NaHCO3 solution. The organic phase was separated, washed with brine, and the solvent was removed under reduced pressure. The title compound was obtained as a reddish solid (1.34 g, 90%), which was used in the next reaction without further purification. Part VII – Synthesis of tert-butyl (3R,4S)-4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2- methylphenyl)-1H-imidazol-4-yl)-6-fluoropyridin-3-yl)amino)-3-fluoropiperidine-1- carboxylateA solution of 5-(4-(5-bromo-2-fluoropyridin-3-yl)-1H-imidazol-1-yl)-N-cyclopropyl-2- fluoro-4-methylbenzamide (588 mg, 1.34 mmol, 1.00 equiv.), tert-butyl (3R,4S)-4-amino-3-fluoropiperidine-1-carboxylate (382 mg, 1.75 mmol, 1.30 equiv.), Pd(dba)2 (77.3 mg, 134Pmol, 0.10 equiv.), tBuBrettPhos (65.2 mg, 134 Pmol, 0.10 equiv.), and Cs2CO3 (876 mg,2.69 mmol, 2.00 equiv.) in 1,4-dioxane (13 mL) was heated to 100 °C for 24 h under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure. Water and DCM were added, and the organic phase was separated. The organic phase was washed with brine, dried over Na2SO4, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (gradient: 0-10% MeOH in DCM). The title compound was obtained as a brownish oil (460 mg, 60%). Part VIII – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3- fluoropiperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-4-methylbenzamideA solution of HCl in 1,4-dioxane (4 M, 2 mL) was added to a solution of tert-butyl (3R,4S)- 4-((5-(1-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-imidazol-4-yl)-6- fluoropyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (200 mg, 350 Pmol, 1.00 equiv.) in DCM (2 mL) and the mixture was stirred at room temperature for 1 h. Subsequently, the solvent was removed under reduced pressure. The title compound was obtained as a brownish solid, which was used in the next reaction without further purification. Part IX – Synthesis of N-cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoro-1- (oxetan-3-yl)piperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-1-yl)-4-methylbenzamide (compound 199)Sodium cyanoborohydride (80.1 mg, 1.28 mmol, 4.00 equiv.) was added to a solution of N- cyclopropyl-2-fluoro-5-(4-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin-4-yl)amino)pyridin-3-yl)- 1H-imidazol-1-yl)-4-methylbenzamide (150 mg, 319 Pmol, 1.00 equiv.) and oxetan-3-one (91.9 mg, 1.28 mmol, 4.00 equiv.) in MeOH (3 mL) and the mixture was stirred overnight at room temperature. Subsequently, the solution was filtered, and the remaining solids were washed with MeOH (1 mL). The solvent of the combined organic phases was removed under reduced pressure and the crude product was purified by preparative HPLC (column: NanoMicro UniSil XB-C18, 50 × 250 mm, 10 µm; mobile phase A: water (10 mmol / L NH4HCO3), mobile phase B: ACN; flow rate: 80 mL / min; gradient: 30-55% B in 14 min;wavelength: 220 nm; RT1: 14 min). The title compound was obtained as a white solid (63.9 mg, 38%). LCMS (ESI) calculated for C27H30F3N6O2 (M+H)+: 527.2, found: 527.3.1H NMR (300 MHz, DMSO-d6) į^8.43 (d, J = 4.3 Hz, 1H), 8.03 (s, 1H), 7.90 (dd, J = 8.5, 2.9 Hz, 1H), 7.70 (dd, J = 3.9, 1.3 Hz, 1H), 7.57 (d, J = 6.7 Hz, 1H), 7.51 (t, J = 2.6 Hz, 1H), 7.42 (d, J = 10.9 Hz, 1H), 5.91 (d, J = 9.0 Hz, 1H), 4.82 (d, J = 48.9 Hz, 1H), 4.55 (t, J = 6.4 Hz, 2H), 4.44 (dt, J = 16.6, 6.1 Hz, 2H), 3.63 – 3.50 (m, 2H), 2.99 – 2.86 (m, 1H), 2.82 (tt, J = 7.8, 3.9 Hz, 1H), 2.77 – 2.73 (m, 1H), 2.31 – 2.13 (m, 4H), 2.10 – 2.00 (m, 1H), 1.81 – 1.68 (m, 2H), 0.76 – 0.60 (m, 2H), 0.60 – 0.50 (m, 2H).

[0265] Example 26 – Synthesis of N-cyclopropyl-2-fluoro-5-(1-(2-fluoro-5-(((3R,4S)-3- fluoro-1-(oxetan-3-yl)piperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-4-yl)-4- methylbenzamide (compound 314); Prepared according to General Scheme 34Part I – Synthesis of 5-bromo-N-cyclopropyl-2-fluoro-4-methylbenzamide

[0266] Cyclopropylamine (0.37 mg, 6.44 mmol, 1.00 equiv.) was added to a solution of 5-bromo-2-fluoro-4-methylbenzoic acid (1.50 g, 6.44 mmol, 1.00 equiv.), chloro-N,N,N’,N’- tetramethylformamidinium hexafluorophosphate (2.89 g, 10.3 mmol, 1.60 equiv.), and 1- methylimidazole (1.85 g, 22.5 mmol, 3.50 equiv.) in ACN (24 mL) and the mixture was stirred at room temperature for 4 h. The precipitated product was filtered off and dissolved in EtOAc. The organic phase was washed with water, dried over Na2SO4, and the solvent was removed under reduced pressure. The title compound was obtained as a white solid (700 mg, 39%), which was used in the next reaction without further purification.Part II – Synthesis of N-cyclopropyl-2-fluoro-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)benzamide

[0267] A solution of 5-bromo-N-cyclopropyl-2-fluoro-4-methylbenzamide (10 g, 36.7 mmol, 1.00 equiv.), bis(pinacolato)diboron (10.3 g, 40.4 mmol, 1.10 equiv.), potassium acetate (10.8 g, 110 mmol, 3.00 equiv.), and Pd(dppf)Cl2(1.34 g, 1.84 mmol, 0.05 equiv.) in 1,4-dioxane (100 mL) was heated to 90 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (DCM / MeOH 10:1). The title compound was obtained as a white solid (14 g, 95%). Part III – Synthesis of N-cyclopropyl-2-fluoro-5-(1H-imidazol-4-yl)-4-methylbenzamide

[0268] A solution of N-cyclopropyl-2-fluoro-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)benzamide (9.00 g, 28.2 mmol, 1.00 equiv.), tert-butyl 4-bromo-1H- imidazole-1-carboxylate (8.36 g, 33.8 mmol, 1.20 equiv.), K2CO3 (11.7 g, 84.6 g, 3.00 equiv.), and Pd(dppf)Cl2 (2.06 g, 2.82 mmol, 0.10 equiv.), in 1,4-dioxane (144 mL) and water (36 mL) was heated to 80 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 5:1). The title compound was obtained as a yellow solid (2 g, 21%). Part IV – Synthesis of 5-(1-(5-bromo-2-fluoropyridin-3-yl)-1H-imidazol-4-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamide

[0269] A solution of N-cyclopropyl-2-fluoro-5-(1H-imidazol-4-yl)-4-methylbenzamide (2.00 g, 7.71 mmol, 1.00 equiv.), (5-bromo-2-fluoropyridin-3-yl)boronic acid (4.24 g, 19.3 mmol, 2.50 equiv.), Cu(OTf)2 (2.798 g, 7.71 mmol, 1.00 equiv.), triethylamine (3.90 g, 38.6 mmol, 5.00 equiv.), and molecular sieves (3 Å, 2.00 g) in 1,2-dicholorethane (26 mL) and DMF (13 mL) was heated to 50 °C overnight under air. Subsequently, the solution was filtered, and the remaining solids were washed with DCM (10 mL). The solvent of the combined organic phases was removed under reduced pressure. The crude product was purified by column chromatography (petroleum ether / EtOAc 1:1). The title compound was obtained as a white solid (480 mg, 13%). Part V – Synthesis of tert-butyl (3R,4S)-4-((5-(4-(5-(cyclopropylcarbamoyl)-4-fluoro-2- methylphenyl)-1H-imidazol-1-yl)-6-fluoropyridin-3-yl)amino)-3-fluoropiperidine-1- carboxylate

[0270] A solution of 5-(1-(5-bromo-2-fluoropyridin-3-yl)-1H-imidazol-4-yl)-N- cyclopropyl-2-fluoro-4-methylbenzamide (460 mg, 956 mmol, 1.00 equiv.), tert-butyl (3R,4S)-4-amino-3-fluoropiperidine-1-carboxylate (229 mg, 1.05 mmol, 1.10 equiv.), Cs2CO3(623 mg, 1.91 mmol, 2.00 equiv.), and GPhos Pd G6 (90.3 mg, 96.0 mmol, 0.10 equiv.) in 1,4-dioxane (9.2 mL) was heated to 100 °C overnight under an inert atmosphere of nitrogen. Subsequently, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (petroleum ether / EtOAc 5:1). The title compound was obtained as a yellow solid (300 mg, 39%). Part VI – Synthesis of N-cyclopropyl-2-fluoro-5-(1-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin- 4-yl)amino)pyridin-3-yl)-1H-imidazol-4-yl)-4-methylbenzamide

[0271] A solution of HCl in 1,4-dioxane (4 M, 3 mL) was added to a solution of tert- butyl (3R,4S)-4-((5-(4-(5-(cyclopropylcarbamoyl)-4-fluoro-2-methylphenyl)-1H-imidazol-1- yl)-6-fluoropyridin-3-yl)amino)-3-fluoropiperidine-1-carboxylate (300 mg, 526 mmol, 1.00 equiv.) in DCM (3 mL) and the mixture was stirred at room temperature for 1 h. Subsequently, the precipitated product was filtered off, washed with DCM (3 x 1 mL), and dried under reduced pressure. The title compound was obtained as a white solid (29.5 mg, 12%), which was used in the next reaction without further purification. Part VII – Synthesis of N-cyclopropyl-2-fluoro-5-(1-(2-fluoro-5-(((3R,4S)-3-fluoro-1- (oxetan-3-yl)piperidin-4-yl)amino)pyridin-3-yl)-1H-imidazol-4-yl)-4-methylbenzamide (compound 73)

[0272] Sodium cyanoborohydride (80.1 mg, 1.28 mmol, 4.00 equiv.) was added to a solution of N-cyclopropyl-2-fluoro-5-(1-(2-fluoro-5-(((3R,4S)-3-fluoropiperidin-4- yl)amino)pyridin-3-yl)-1H-imidazol-4-yl)-4-methylbenzamide (150 mg, 319 mmol, 1.00 equiv.) and oxetan-3-one (91.9 mg, 1.28 mmol, 4.00 equiv.) in MeOH (3 mL) and the mixture was stirred at room temperature for 2 h. Subsequently, the crude product was purified by reversed-phase flash chromatography (column: C18 silica gel; mobile phase A: water (0.1% formic acid), mobile phase B: ACN, gradient: 10-50% B in 10 min; wavelength: 210 nm). The title compound was obtained as a white solid (41.6 mg, 24%). LCMS (ESI) calculated for C27H30F3N6O2(M+H)+: 527.2, found: 527.3.1H NMR (300MHz, DMSO-d6) į 8.37 – 8.29 (m, 1H), 8.17 (t, J = 1.5 Hz, 1H), 7.99 (d, J = 7.7 Hz, 1H), 7.84 (t, J = 1.4 Hz, 1H), 7.70 (t, J = 2.5 Hz, 1H), 7.53 (dd, J = 8.3, 2.7 Hz, 1H), 7.21 (d, J = 11.4 Hz, 1H), 6.20 (s, 1H), 4.85 (d, J = 48.0 Hz, 1H), 4.56 – 4.47 (m, 4H), 3.83 – 3.58 (m, 1H), 3.56 – 3.45 (m, 1H), 3.13 – 2.90 (m, 1H), 2.90 – 2.80 (m, 1H), 2.82 – 2.69 (m, 1H), 2.51 (s, 3H), 2.28 – 2.03 (m, 2H), 1.85 – 1.70 (m, 2H), 0.70 (td, J = 7.1, 4.7 Hz, 2H), 0.66 – 0.50 (m, 2H).

[0273] Example 27 – Preparation of Additional 2-Halopyridyl Compounds Compounds in the table below were prepared based on experimental procedures described in Examples 6 and 20-26 and the detailed description.

[0274]

[0275] Example 28 – Preparation of compounds 235, 240, 241, 244, 245, and 247.

[0276] Compound 235 can be prepared according to the synthetic protocol in Example 23. Compounds 240, 241, 244, 245, and 247 can be prepared according to the synthetic protocol in Example 22.

[0277] Examples 29-33 include data obtained with previously reported compounds 250, 251, 255, 256, and 315, which are provided for comparison:compound 250;

[0278] Example 29 - RIPK2 Inhibition

[0279] RIPK2 inhibition was measured as follows:

[0280] Materials: RIPK2 enzyme was purchased from Carna (catlogue number 09-128). The V9102 ADP-Glo Kinase Assay (including ultrapure ATP, 10mM) was purchased from Promega. Native swine MBP was used as the substrate for the reaction and was purchased from SignalChem Biotech (catalogue number M42-51N). Assay buffer used for the assay consisted of the following components: MgCl2(final concentration of 10 mM), Brij-35 (0.01%), DTT (final concentration of 2mM), BSA (0.05%), EGTA (final concentration of 1 mM), and HEPE (pH 7.5 at final concentration of 50 mM).

[0281] Method: In a 384 well plate, 10 nL of test compound was dispensed using Echo550 and mixed with RIPK2 enzyme (final concentration of 5nM) in assay buffer for 30 minutes at room temperature. Subsequently, ATP (final concentration of 150 µM) and MBP (final concentration of 0.02 µg / µL) were dissolved in assay buffer, added, and the mixture was incubated for 180 min at room temperature. Then ADP-Glo reagent was added and incubated for 60 min at room temperature. Last, Kinase Detection Reagent was added to the mixture and incubated for 60 min. The resulting luminescent signal was measured with an Envision reader to determine the amount of ADP produced. All plates contained vehicle controls (10 nL DMSO...

Claims

What is claimed is:

1. A compound represented by structural formula (X”) or a pharmaceutically acceptable salt thereof:wherein: X’is a moiety represented by one of the following structural formulas:and, wherein # indicates the point of attachment to the pyridyl group; A1*N or CH; A2*CH or N; R1*is selected from C1-6alkyl, H, halogen, C1-6haloalkyl a¸nd C1-6alkoxy; R2*is selected from halogen, C1-6alkyl, H, C1-6haloalkyl a¸nd C1-6alkoxy; R3*is C3-6 cycloalkyl or C1-6alkyl; R4*is a halogen; and R5*is 4- to 10-membered heterocyclyl; wherein each C1-6alkyl, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a*, SR15a*, NR16a*R17a*, S(O)R18a*, S(O)2R18b*, NR19*S(=O)R20*, C(=O)OR20a*, C(=O)NR21*R22*, NR23*C(=O)R24*, C(=S)NR25*R26*, C(=O)R27*, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10- membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected fromdeuterium, oxo, F, Cl, Br, CN, OR14b*, NR16b*R17b*, C(=O)NR21b*R22b*, NR23b*C(=O)R24b*, C(=O)R27b*, C(=O)OR27c*, S(O)R18c*, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a*,R14b*,R15a*,R18a*,R18b*, R18c*, R20*,R20a*,R24*,R24b*, R27*, R27b*, and R27c*are each independently hydrogen or C1-6alkyl; R16a*, R17a*, R16b*, and R17b*are each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19*, R23*,and R23b*are each independently C1-6alkyl or halo(C1-6)alkyl; R21*, R21b*, R22*, R22b*, R25*and R26*are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl.

2. The compound of claim 14, wherein the compound is represented by structural formula (X) or a pharmaceutically acceptable salt thereof:

3. The compound of claim 1, wherein the compound is represented by structural formula (XIII) or a pharmaceutically acceptable salt thereof:

4. The compound of any one of claims 1-3, wherein X’ is a moiety represented by one of the following structural formulas:.

5. The compound of claim 1, wherein the compound is represented by structural formula (Xa) or a pharmaceutically acceptable salt thereof:

6. The compound of any one of claims 1-3, wherein X’ is a moiety represented by one of the following structural formulas:.

7. The compound of claim 1, wherein the compound is represented by structural formula (Xb) or a pharmaceutically acceptable salt thereof:

8. The compound of any one of claims 1-3, wherein X’ is a moiety represented by one of the following structural formulas:.

9. The compound of claim 1, wherein the compound is represented by structural formula (Xc) or a pharmaceutically acceptable salt thereof:

10. The compound of any one of claims 1-9, wherein R1*is methyl.

11. The compound of any one of claims 1-10, wherein R2*is F.

12. The compound of any one of claims 1-11, wherein R3*is optionally substituted C3-6 cycloalkyl.

13. The compound of claim 12, wherein R3*is cyclopropyl.

14. The compound of any one of claims 1-11, wherein R3*is optionally substituted C1-6alkyl.

15. The compound of claim 14 wherein R3*is ethyl.

16. The compound of any one of claims 1-15, wherein R4*is F.

17. The compound of any one of claims 1-15, wherein R4*is Cl.

18. The compound of claim 1, wherein the compound is represented by structural formula (XI) or a pharmaceutically acceptable salt thereof:

19. The compound of any one of claims 1-18, wherein R5*is a 6-membered heterocyclyl, wherein the 6-membered heterocyclyl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a*, SR15a*, NR16a*R17a*, S(O)R18a*, S(O)2R18b*, NR19*S(=O)R20*, C(=O)OR20a*, C(=O)NR21*R22*, NR23*C(=O)R24*, C(=S)NR25*R26*, C(=O)R27*, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1- 6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b*, NR16b*R17b*, C(=O)NR21b*R22b*, NR23b*C(=O)R24b*, C(=O)R27b*, C(=O)OR27c*, S(O)R18c*, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a*, R14b*, R15a*, R18a*, R18b*, R18c*, R20*, R20a*, R24*, R24b*, R27*, R27b*, and R27c*are each independently hydrogen or C1-6alkyl; R16a*, R17a*, R16b*, and R17b*are each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19*, R23*,and R23b*are each independently C1-6alkyl or halo(C1-6)alkyl; R21*,R21b*,R22*,R22b*,R25*and R26*are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl.

20. The compound of claim 19, wherein R5*is a moiety represented by the following structural formula:wherein: A3*is O or NR7*, R6*is selected from H, F, OH, or C1-3alkoxy, and R7*is selected from H, C1-6alkyl, C3-6cycloalkyl, and 4- to 10-membered heterocyclyl, wherein C1-6alkyl, C3-6 cycloalkyl, or 4- to 10-membered heterocyclyl is optionally substituted.

21. The compound of claim 20, wherein R6*is F.

22. The compound of claim 20, wherein R6*is H.

23. The compound of claim 20, wherein R6*is OMe.

24. The compound of any one of claims 20-23, wherein A3*is O.

25. The compound of any one of claims 20-23, wherein A3*is NR7*.

26. The compound of claim 1, wherein the compound is represented by structural formula (XII) or a pharmaceutically acceptable salt thereof:wherein R28*is selected from H, C1-6alkyl, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl, wherein each C1-6alkyl, C3-6cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 deuterium, oxo, F, Cl, Br, CN, OR14a*, SR15a*, NR16a*R17a*, S(O)R18a*, S(O)2R18b*, NR19*S(=O)R20*, C(=O)OR20a*, C(=O)NR21*R22*, NR23*C(=O)R24*, C(=S)NR25*R26*, C(=O)R27*, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b*, NR16b*R17b*, C(=O)NR21b*R22b*, NR23b*C(=O)R24b*, C(=O)R27b*, C(=O)OR27c*, S(O)R18c*, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a*, R14b*, R15a*, R18a*, R18b*, R18c*, R20*, R20a*, R24*, R24b*, R27*, R27b*, and R27c*are each independently hydrogen or C1-6alkyl;R16a*, R17a*, R16b*, and R17b*are each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19*, R23*,and R23b*are each independently C1-6alkyl or halo(C1-6)alkyl; R21*,R21b*,R22*,R22b*,R25*and R26*are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl.

27. The compound of claim 26, wherein the compound is represented by structural formula (XIIa) or a pharmaceutically acceptable salt thereof:

28. The compound of claim 26 or 27, wherein R28*is H.

29. The compound of claim 26 or 27, wherein R28*is optionally substituted 4- to 10- membered heterocyclyl.

30. The compound of claim 26 or 27, wherein R28*is optionally substituted C1-6alkyl.

31. The compound of any one of claims 1-3 and 18-30, wherein A1*is N and A2*is CH.

32. The compound of any one of claims 1-3 and 18-30, wherein A1*is N and A2*is N.

33. The compound of any one of claims 1-3 and 18-30, wherein A1*is CH and A2*is N.

34. The compound of claim 1, wherein the compound is selected from the compounds in Table 10 or is a pharmaceutically acceptable salt thereof.

35. The compound of claim 1, wherein the compound is selected from the compounds in Table 11 or is a pharmaceutically acceptable salt thereof.

36. The compound of claim 1, wherein the compound is selected from the compounds in Table 12 or is a pharmaceutically acceptable salt thereof.

37. The compound of claim 1, wherein the compound is represented by one of the following structural formulas:pharmaceutically acceptable salt thereof.

38. A compound represented by structural formula (I’) or a pharmaceutically acceptable salt thereof:wherein: G is selected from the following moieties oriented in either direction unless indicated otherwise:,indicates the point of attachment to X; U1, U2, U3, and U4is each CH or N, provided that at least one and no more than two of U1, U2, U3, and U4are N; A1is CH, C(C1-3alkyl), or N, A2and A3is each independently CH or N, X is a moiety represented by one of the following structural formulas:A4is N or CR8; A5, A6, and Q is each independently CH or N; Y is -NHC(O)-*, -C(O)NH-*, or -C(O)(C1-3alkylene)-*, where * indicates the point of attachment to R3; R1, R1a, and R2is each independently selected from H, halogen, C1-6alkyl, C1-6haloalkyl, and C1-6alkoxy; R3is selected from C1-6alkyl, C1-6haloalkyl, C1-6alkoxy, C3-6 cycloalkyl, 4- to 10-membered heterocyclyl, 5- to 12-membered heteroaryl, or NR9R10; R4is selected from halogen, C3-6 cycloalkyl, C1-6alkoxy, 5- to 12-membered heteroaryl, C(=O)NR11R12,S(O)2R13, and Z2R13a; Q1is N or CR5; R5and R6is each independently selected from H, halogen, and C1-6alkyl; RGis selected from H, C1-6alkyl, and C1-6haloalkyl;Z1is selected from O, NH, N(C1-6alkyl), NH(C1-3alkylene), (C1-3alkylene)NH, C(O), C(O)NH, NHC(O), NHS(O)2, S(O)2NH, C1-3alkylene, and a bond; Z2is selected from C1-3alkylene, NH, and bond; R7is selected from C1-6alkyl, C3-6cycloalkyl, 4- to 10-membered heterocyclyl, 5-12 membered heteroaryl, (C1-6alkylene)NR17R18; R8is selected from H, halogen, C1-6haloalkyl, 4- to 10-membered heterocyclyl, and C1-6alkoxy; R9and R10is each independently C1-6alkyl; R11and R12is each independently H or C1-6alkyl, or R11and R12taken together with the nitrogen atom to which they are attached form 4- to 10- membered heterocyclyl; and R13and R13ais each independently 4- to 10-membered heterocyclyl or NR14R15; R14and R15is each independently C1-6alkyl; and R17and R18is each independently C1-6alkyl or H; wherein each C1-6alkyl, C1-3alkyl, C1-3alkylene, C1-6alkylene, C3-6 cycloalkyl, C1-6alkoxy, 5-12 membered heteroaryl, and 4- to 10-membered heterocyclyl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1- 6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10- membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl, C3-6cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further whereinR14a,R14b,R15a,R18a,R18b, R18c, R20,R20a,R24,R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21, R21b, R22, R22b, R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1- 3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl.

39. The compound of claim 38, wherein the compound is represented by structural formula (I) or a pharmaceutically acceptable salt thereof:

40. The compound of claim 38 or 39, wherein X is a moiety represented by one of the following structural formulas:

41. The compound of claim 38 or 39, wherein X is a moiety represented by one of the following structural formulas:, .

42. The compound of claim 41, wherein X is a moiety represented by the following structural formula:.

43. The compound of any one of claims 38-42, wherein A4is N.

44. The compound of any one of claims 38-42, wherein A4is CR8.

45. The compound of claim 44, wherein R8is selected from H, optionally substituted C1-6haloalkyl, and optionally substituted C1-6alkoxy.

46. The compound of claim 44, wherein R8is H.

47. The compound of claim 44, wherein R8is methoxy.

48. The compound of any one of claims 38-47, wherein R4is selected from halogen, optionally substituted C3-6cycloalkyl, C(=O)NR11R12,and Z2R13a.

49. The compound of claim 48, wherein R4is Z2R13a.

50. The compound of claim 49, wherein Z2is a bond.

51. The compound of claim 49 or 50, wherein R13ais an optionally substituted 4- to 10- membered heterocyclyl.

52. The compound of claim 51, wherein R13ais a 6-membered heterocyclyl, wherein the 6-membered heterocyclyl is optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6 alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected fromdeuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a,R14b,R15a,R18a,R18b, R18c, R20,R20a,R24,R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1 -6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21, R21b, R22, R22b, R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1- 3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl.

53. The compound of claim 41, wherein the compound is represented by structural formula (IIa) or (IIb):(IIb), whereinA7is CR28or N; A8is NR29, CHR30, or O; R28is selected from H, halogen, OH, CN, and C1-6alkoxy; R29is selected from H, C1-6alkyl, C3-6cycloalkyl, C(O)O(C1-6alkyl), and 4- to 10-membered heterocyclyl; R30is selected from H, OH, and NR31R32; and R31and R32is each independently C1-6alkyl, wherein each C1-6alkoxy, C1-6alkyl, C3-6 cycloalkyl, and 4- to 10-membered heterocyclyl is optionally substituted.

54. The compound of claim 53, wherein the compound is represented by structural formula (IIa).

55. The compound of claim 53 or 54, wherein A7is CR28, R28is F; A8is NR29; and R29is methyl.

56. The compound of claim 51, wherein R13ais an optionally substituted 4- to 10- membered bridged or spirocyclic bicyclic heterocyclyl.

57. The compound of any one of claims 38-52, wherein A5is CH.

58. The compound of any one of claims 38-52, wherein A5is N.

59. The compound of claim 38 or 39, wherein X is a moiety represented by one of the following structural formulas:, .

60. The compound of claim 59, wherein X is a moiety represented by the following structural formula:.

61. The compound of claim 60, wherein Q is CH.

62. The compound of claim 60, wherein Q is N.

63. The compound of claim 59, wherein X is a moiety represented by the following structural formula:.

64. The compound of any one of claims 59-63, wherein Z1is selected from O, NH, N(C1-6alkyl), C(O)NH, NHC(O), and a bond, wherein C1-6alkyl is optionally substituted.

65. The compound of claim 64, wherein Z1is NH.

66. The compound of any one of claims 38, 39, and 59-65, wherein R7is 4- to 10- membered heterocyclyl or (C1-6alkylene)NR17R18, wherein C1-6alkylene or 4- to 10- membered heterocyclyl is optionally substituted.

67. The compound of claim 66, wherein R7is a 4-membered, 5-membered, or 6- membered heterocyclyl, wherein the 4-membered, 5-membered, or 6-membered heterocyclyl is optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1- 6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C(=O)OR27c, S(O)R18c, C1-6alkyl, C3-6 cycloalkyl, halo(C1-6)alkyl, C6-12 aryl, and 4- to 10-membered heterocyclyl, and further wherein R14a,R14b,R15a,R18a,R18b, R18c, R20,R20a,R24,R24b, R27, R27b, and R27care each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21,R21b,R22,R22b,R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17,S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl.

68. The compound of claim 67, wherein R7is an optionally substituted 6-membered heterocyclyl.

69. The compound of any one of claims 65-68, wherein the compound is represented by structural formula (III):

70. The compound of claim 69, wherein the compound is represented by structural formula (IIIa):wherein: A10is O or NR33; A9is selected from CH2, CHF, CF2, CH(OH), CH(OC1-6alkyl), and C(C1-6alkyl)2; A10is O or NR33;R33is selected from C1-6alkyl, C3-6cycloalkyl, and 4- to 10-membered heterocyclyl, wherein each C1-6alkyl, C3-6 cycloalkyl, or 4- to 10-membered heterocyclyl is optionally substituted.

71. The compound of claim 70, wherein A10is NR33.

72. The compound of claim 70 or 71, wherein R33is optionally substituted C1-6alkyl.

73. The compound of any one of claims 70-72, wherein A9is CH2 or CHF.

74. The compound of claim 73, wherein A9is CHF.

75. The compound of claim 70, wherein A9is CHF and A10is N(methyl).

76. The compound of any one of claims 69-75, wherein R5is F or H.

77. The compound of claim 76, wherein R5is H.

78. The compound of any one of claims 63-68, wherein R6is H or methyl.

79. The compound of claim 79, wherein R6is H.

80. The compound of any one of claims 38-79, wherein R1is methyl.

81. The compound of any one of claims 38-80, wherein R2is F.

82. The compound of any one of claims 38-81, wherein Y is -C(O)NH-*.

83. The compound of any one of claims 38-82, wherein the compound is represented by structural formula (IV):

84. The compound of any one of claims 38-83, wherein R3is selected from optionally substituted C1-6alkyl, optionally substituted C1-6alkoxy, optionally substituted C3-6 cycloalkyl, optionally substituted 4- to 10-membered heterocyclyl, and optionally substituted 5- to 12-membered heteroaryl.

85. The compound claim 84, wherein R3is optionally substituted C3-6 cycloalkyl or optionally substituted 5- to 12-membered heteroaryl.

86. The compound of claim 85, wherein R3is cyclopropyl.

87. The compound of claim 85, wherein R3is a 5-membered heteroaryl optionally substituted with 0 to 3 substituents independently selected from deuterium, F, Cl, Br, CN, OR14a, SR15a, NR16aR17a, S(O)R18a, S(O)2R18b, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6 cycloalkyl, C2-6 alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12 aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl, wherein each substituent selected from C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1- 6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1-3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl is further optionally substituted with 1 to 5 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14b, NR16bR17b, C(=O)NR21bR22b, NR23bC(=O)R24b, C(=O)R27b, C1-6alkyl, C3-6cycloalkyl, halo(C1-6)alkyl, C6-12aryl, and 4- to 10-membered heterocyclyl, and further whereinR14a,R14b,R15a,R18a,R18b, R20,R20a,R24,R24b, R27, and R27bare each independently hydrogen or C1-6alkyl; R16a, R17a, R16b, and R17bare each independently selected from hydrogen, C1-6alkyl, hydroxy(C1-6)alkyl, and halo(C1-6)alkyl; R19, R23,and R23bare each independently C1-6alkyl or halo(C1-6)alkyl; R21, R21b, R22, R22b, R25and R26are each independently selected from H, C1-6alkyl, C1-3alkoxy(C1-6)alkyl, hydroxy(C1-6)alkyl, cyano(C1-6)alkyl, amino(C1-6)alkyl, C1-3alkylamino(C1-6)alkyl, and di(C1-3)alkylamino(C1-6)alkyl; or R21and R22, R21band R22b, or R25and R26, together with the nitrogen to which they are attached, form a 3-8 membered ring optionally substituted with 1 to 3 substituents independently selected from deuterium, oxo, F, Cl, Br, CN, OR14, SR15, NR16R17, S(O)R18, S(O)2R18a, NR19S(=O)R20, C(=O)OR20a, C(=O)NR21R22, NR23C(=O)R24, C(=S)NR25R26, C(=O)R27, C1-6alkyl, C3-6cycloalkyl, C2-6alkenyl, halo(C1-6)alkyl, C1-3alkylsulfonylaminoalkyl, hydroxy(C1-6)alkyl, amino(C1-6)alkyl, cyano(C1-6)alkyl, C1-3alkylcarbonylamino(C1-6)alkyl, C1-3alkoxy, halo(C1-3)alkoxy, C1-6alkoxy(C1- 3)alkyl, C6-12aryl, 4- to 10-membered heterocyclyl, and 5- to 12-membered heteroaryl.

88. The compound of any one of claims 38-83, wherein the compound is represented by structural formula (V):

89. The compound of any one of claims 38-87, wherein the compound is represented by structural formula (VI), (VII), (VIII), or (IX):

90. The compound of claim 89, wherein the compound is represented by structural formula (VI) or (VII).

91. The compound of any one of claims 38-58, wherein the compound is represented by structural formula (VIa) or (IVb):

92. The compound of claim 91, wherein the compound is represented by structural formula (VIa).

93. The compound of claim 92, wherein the compound is represented by structural formula (VIc):

94. The compound of any one of claims 59-90, wherein the compound is represented by structural formula (VIIa) or (VIIb):(VIIb).

95. The compound of claim 94, wherein R7is an optionally substituted 4-membered, optionally substituted 5-membered, or optionally substituted 6-membered heterocyclyl.

96. The compound of claim 59, wherein the compound is represented by structural formula (IXa) or (IXb):

97. The compound of claim 96, wherein R7is a is an optionally substituted 4-membered, 5-membered, or 6-membered heterocyclyl.

98. The compound of claim claim 59, wherein the compound is represented by structural formula (VIIc):

99. The compound of claim 98, wherein the compound is represented by structural formula (VIId):

100. The compound of claim 59, wherein the compound is represented by structural formula (VId) or (VIe):

101. The compound of claim 100, wherein R7is an optionally substituted 4-membered, 5- membered, or 6-membered heterocyclyl.

102. The compound of any one of claims 69-90, wherein the compound is represented by structural formula (VIf):

103. The compound of claim 102, wherein the compound is represented by structural formula (VIg):

104. The compound of any one of claims 38-22, wherein G is selected from the following moieties oriented in either direction: ,105. The compound of claim 38, wherein the compound is selected from the compounds in Table 1 or is a pharmaceutically acceptable salt thereof.

106. The compound of claim 38, wherein the compound is selected from the compounds in Table 2 or is a pharmaceutically acceptable salt thereof.

107. The compound of claim 38, wherein the compound is selected from the compounds in Table 3 or is a pharmaceutically acceptable salt thereof.

108. The compound of claim 38, wherein the compound is selected from the compounds in Table 4 or is a pharmaceutically acceptable salt thereof.

109. The compound of claim 38, wherein the compound is selected from the compounds in Table 5 or is a pharmaceutically acceptable salt thereof.

110. The compound of claim 38, wherein the compound is selected from the compounds in Table 6 or is a pharmaceutically acceptable salt thereof.

111. The compound of claim 38, wherein the compound is selected from the compounds in Table 7 or is a pharmaceutically acceptable salt thereof.

112. The compound of claim 38, wherein the compound is selected from the compounds in Table 8 or is a pharmaceutically acceptable salt thereof.

113. The compound of claim 38, wherein the compound is selected from the compounds in Table 9 or is a pharmaceutically acceptable salt thereof.

114. A pharmaceutical composition comprising a compound of any one of claims 1-113 and a pharmaceutically acceptable excipient.

115. A method of treating a disease or disorder, comprising administering to a subject in need thereof a compound of any one of claims 1-113 or a pharmaceutical composition of claim 114, wherein the disease or disorder is selected from an inflammatory disease, autoimmune disease, granulomatous disease, cancer, and neurodegenerative disease.

116. The method of claim 115, wherein the disease or disorder is an inflammatory disease.

117. The method of claim 116, wherein the inflammatory disease is selected from uveitis, interleukin- 1 converting enzyme fever syndrome, dermatitis, acute lung injury, type 2 diabetes mellitus, arthritis, inflammatory bowel disease (IBD), ischemia reperfusion injury in a solid organ transplant, sepsis, liver disease, allergic disease, and graft versus host disease.

118. The method of claim 116, wherein the inflammatory disease is an IBD.

119. The method of claim 116, wherein the IBD is selected from ulcerative colitis, Crohn's disease, early-onset IBD, and extraintestinal IBD.

120. The method of claim 116, wherein the inflammatory disease is selected from rheumatoid arthritis, inflammatory arthritis, peritonitis, ischemia reperfusion injury in kidney transplant, non-alcohol steatohepatitis, alcohol steatohepatitis, insulin-resistant type 2 diabetes, allergic rhinitis, asthma, atopic dermatitis, Sjogren’s syndrome, ankylosing spondylitis, pemphigus vulgaris, idiopathic plasmacytic lymphadenopathy, atherosclerosis, myocardial infarction, thrombosis, a-synucleinopathy, Parkinson’s disease, dementia with Lewy body, multiple system atrophy, Alzheimer’s disease, amyotrophic lateral sclerosis, and chronic obstructive pulmonary disease.

121. The method of claim 115, wherein the disease or disorder is an autoimmune disease.

122. The method of claim 121, wherein the autoimmune disease is selected from systemic lupus erythematosus, lupus nephritis, psoriasis, immune thrombocytopenic purpura, and multiple sclerosis.

123. The method of claim 115, wherein the disease or disorder is a granulomatous disease.

124. The method of claim 123, wherein the granulomatous disease is selected from sarcoidosis, Blau syndrome, Wegner’s granulomatosis, Behcet’s disease, and interstitial pulmonary disease.

125. The method of claim 115, wherein the disease or disorder is a cancer.

126. The method of claim 125, wherein the cancer is selected from leukemia, breast cancer, brain cancer, colorectal cancer, head and neck cancer, melanoma, pancreatic cancer, prostate cancer, ovarian cancer, renal cancer, and lung cancer.

127. The method of claim 115, wherein the disease or disorder is a neurodegenerative disease.

128. The method of claim 127, wherein the neurodegenerative disease is selected from Alzheimer’s disease, amyotrophic lateral sclerosis (ALS / Lou Gehrig’s Disease), Parkinson’s disease, multiple sclerosis, diabetic neurophathy, polyglutamine (polyQ) diseases, stroke, Fahr disease, Menke’s disease, Wilson’s disease, cerebral ischemia, a prion disorder, dementia, corticobasal degeneration, progressive supranuclear palsy, spinocerebellar atrophies, brain injury, and spinal cord injury.

129. The method of any one of claims 115-128, further comprising administering a second agent.

130. The method of claim 129, wherein the second agent is an anti-inflammatory agent or an anti-autoimmune agent.

131. The method of claim 129, wherein the second agent is selected from anti-TNF agent, anti-IL-23 agent, anti-integrin agent, and JAK inhibitor.

132. The method of claim 129, wherein the second agent is anti-TNF agent.

133. The method of claim 129, wherein the second agent is anti-IL-23 agent.

134. The method of claim 129, wherein the second agent is anti-integrin agent.

135. The method of claim 129, wherein the second agent is JAK inhibitor.

136. The method of any one of claims 129-135, wherein the second agent and the compound are administered together in a single pharmaceutical composition.

137. The method of any one of claims 129-135, wherein the second agent and the compound are administered separately.

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