Inhibitors of the menin-MLL Interaction

Abstract

Inhibitors of the menin-MLL intereaction Abstract The present invention is directed to inhibitors of the interaction of menin with MLL and MLL fusion proteins, pharmaceutical compositions containing the same, and their use in the treatment of cancer and other diseases mediated by the menin-MLL interaction. Inhibitors of the menin-MLL intereaction Abstract The present invention is directed to inhibitors of the interaction of menin with MLL and MLL fusion proteins, pharmaceutical compositions containing the same, and their use in the treatment of cancer and other diseases mediated by the menin-MLL interaction. 20 24 20 27 00 24 A pr 2 02 4 I n h i b i t o r s o f t h e m e n i n - M L L i n t e r e a c t i o n 2 0 2 4 2 0 2 7 0 0 2 4 A p r 2 0 2 4 A b s t r a c t

Description

TECHNICAL FIELD The present invention is directed to inhibitors of the interaction of menin with MLL and MLL fusion proteins, pharmaceutical compositions containing the same, and their use in the treatment of cancer and other diseases mediated by the menin-MLL interaction. BACKGROUND The mixed-lineage leukemia (MLL) protein is a histone methyltransferase that is mutated in clinically and biologically distinctive subsets of acute leukemia. Rearranged mixed lineage leukemia (MLL-r) involves recurrent translocations of the l lq23 chromosome locus which lead to an aggressive form of acute leukemia with limited therapeutic options. These translocations target theMLL gene creating an oncogenic fusion protein comprising the amino-terminus ofMLL fused in frame with more than 60 different fusion protein partners. Menin, a ubiquitously expressed, nuclear protein encoded by the multiple endocrine neoplasia type 1 (MENI) tumor suppressor gene, has a high affinity binding interaction with MLL fusion proteins and is an essential co-factor of oncogenic MLL-r fusion proteins (Yokoyama et al., 2005, Cell, 123:207-18; Cierpicki & Grembecka, 2014, Future Med. Chem., 6:447-462). Disruption of this interaction leads to selective growth inhibition and apoptosis of MLL-r leukemia cells both in vitro (Grembecka et al., 2012, Nat. Chem. Biol., 8:277-284) and in vivo (Yokoyama et al., 2005, op. cit.; Borkin et al., 2015, Cancer Cell, 27:589-602). The menin-MLL complex plays a role in castration-resistant / advanced prostate cancer, and a menin-MLL inhibitor has been shown to reduce tumor growth in vivo (Malik et al., 2015, Nat. Med., 21 :344-352). Additionally, a menin-MLL inhibitor has been shown to enhance human cell proliferation (Chamberlain et al., 2014, J. Clin. Invest., 124:4093-4101), supporting a role for inhibitors of the menin-MLL interaction in the treatment of diabetes (Yang et al., 2010, Proc Natl Acad Sci US A, 107:20358- 20363). The interaction between menin and MLL or MLL fusion proteins is an attractive target for therapeutic intervention, and there is a need for novel agents that inhibit the 2024202700   13 Aug 2026 menin-MLL interaction for the treatment of various diseases and conditions, including leukemia, other cancers and diabetes. It is an object of the present invention to overcome or ameliorate one or more of the disadvantages of the prior art, or at least to provide a useful alternative. In a first embodiment of the invention, there is provided a compound of the following formula:                                                  , or a pharmaceutically acceptable salt thereof, wherein: A, B, D, and E are each independently selected from -C(RA1XRA2)-, -c(ra1XRa2)-c(Ra1XRA2)- -c(Ra1XRa2)-o- -C(RA1XRA2)-NRA3- -c(=o)-, -C(Ra1)(Ra2)-C(=O)-, and -N=C(NH2)- wherein no more than one of A, B, D, and E is -C(RA1XRA2)—O- -C(Ra1XRA2)-NRA3- -C(Ra1XRA2)-C(=O)- -C(=O)-, or -N=C(NH2)-; U is N or CRU, wherein RU is H, halo, CN, OH, C1-4 alkyl, C1-4 alkoxy, amino, C1-4 alkyl amino, or C2-8 dialkylamino; W is N or CRW, wherein RW is H, halo, CN, OH, C1-4 alkyl, C1-4 alkoxy, amino, C1-4 alkyl amino, or C2-8 dialkylamino; X is NH; Y is O, S, CRY1RY2 or NRY3, wherein RY1, RY2, and RY3 are each independently selected from H and C1-4 alkyl; Z is Cy2, halo, C1-6 alkyl, C1-4 haloalkyl, C1-4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, CN, NO2, ORa3, SRa3, C(O)Rb3, C(O)NRc3Rd3, C(O)ORa3, OC(O)Rb3, OC(O)NRc3Rd3, C(=NRe3)NRc3Rd3, NRc3C(=NRe3)NRc3Rd3, NRc3Rd3, NRc3C(O)Rb3, NRc3C(O)ORa3, NRc3C(O)NRc3Rd3, NRc3S(O)Rb3, NRc3S(O)2Rb3, NRc3S(O)2NRc3Rd3, S(O)Rb3, S(O)NRc3Rd3, S(O)2Rb3, S(O)2NRc3Rd3, and P(O)Rc3Rd3 wherein said C1-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl 2024202700   13 Aug 2026 are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from Cy2, halo, CN, NO2, CN, NO2, ORa3, SRa3, C(O)Rb3, C(O)NRc3Rd3, C(O)ORa3, OC(O)Rb3, OC(O)NRc3Rd3, C(=NRe3)NRc3Rd3, NRc3C(=NRe3)NRc3Rd3, NRc3Rd3, NRc3C(O)Rb3, NRc3C(O)ORa3, NRc3C(O)NRc3Rd3, NRc3S(O)Rb3, NRc3S(O)2Rb3, NRc3S(O)2NRc3Rd3, S(O)Rb3, S(O)NRc3Rd3, S(O)2Rb3, and S(O)2NRc3Rd3; each R2 and R3 is independently selected from H, halo, C1-6 alkyl, C1-4 haloalkyl, C1-4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, CN, NO2, ORa4, SRa4, C(O)Rb4, C(O)NRc4Rd4, C(O)ORa4, OC(O)Rb4, OC(O)NRc4Rd4, C(=NRe4)NRc4Rd4, NRc4C(=NRe4)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, and S(O)2NRc4Rd4, wherein said C1-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from halo, CN, NO2, ORa4, SRa4, C(O)Rb4, C(O)NRc4Rd4, C(O)ORa4, OC(O)Rb4, OC(O)NRc4Rd4, C(=NRe4)NRc4Rd4, NRc4C(=NRe4)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, and S(O)2NRc4Rd4; each RA1 is independently selected from H, halo, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, amino, C1-4 alkylamino, C2-8 dialkylamino, CN, NO2, and OH; each RA2 is independently selected from H, halo, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, amino, C1-4 alkylamino, C2-8 dialkylamino, CN, NO2, and OH; each RA3 is independently selected from H, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C(O)Rz, and C(O)ORz, wherein said C1-4 alkyl is optionally substituted by phenyl, C1-4 alkoxy, C1-4 haloalkoxy, CN, NO2, or OH; Rz is H, C1-4 alkyl, or phenyl; each Cy2 is independently selected from C6-14 aryl, C3-18 cycloalkyl, 5-16 membered heteroaryl, and 4-18 membered heterocycloalkyl, each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy2; each RCy2 is independently selected from halo, C1-6 alkyl, C1-4 haloalkyl, C1-4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-7 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl, CN, NO2, ORa5, SRa5, C(O)Rb5, C(O)NRc5Rd5, C(O)ORa5, OC(O)Rb5, OC(O)NRc5Rd5, C(=NRe5)NRc5Rd5, NRc5C(=NRe5)NRc5Rd5, NRc5Rd5, NRc5C(O)Rb5, NRc5C(O)ORa5, NRc5C(O)NRc5Rd5, NRc5S(O)Rb5, NRc5S(O)2Rb5, NRc5S(O)2NRc5Rd5, S(O)Rb5, 2024202700   13 Aug 2026 S(O)NRc5Rd5, S(O)2Rb5, and S(O)2NRc5Rd5, wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-7 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from CN, NO2, ORa5, SRa5, C(O)Rb5, C(O)NRc5Rd5, C(O)ORa5, OC(O)Rb5, OC(O)NRc5Rd5, C(=NRe5)NRc5Rd5, NRc5C(=NRe5)NRc5Rd5, NRc5Rd5, NRc5C(O)Rb5, NRc5C(O)ORa5, NRc5C(O)NRc5Rd5, NRc5S(O)Rb5, NRc5S(O)2Rb5, NRc5S(O)2NRc5Rd5, S(O)Rb5, S(O)NRc5Rd5, S(O)2Rb5, and S(O)2NRc5Rd5; each Ra3, Rb3, Rc3, Rd3, Ra4, Rb4, Rc4, Rd4, Ra5, Rb5, Rc5, and Rd5 is independently selected from H, C1-6 alkyl, C1-4 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-6 alkyl, C3-10 cycloalkyl-C1-6 alkyl, (5-10 membered heteroaryl)-C1-6 alkyl, and (4-10 membered heterocycloalkyl)-C1-6 alkyl, wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-6 alkyl, C3-10 cycloalky-C1-6 alkyl, (510 membered heteroaryl)-C1-6 alkyl, and (4-10 membered heterocycloalkyl)-C1-6 alkyl are each optionally substituted with 1, 2, 3, 4, or 5 substituents independently selected from Rg; each Re3, Re4, and Re5 is independently selected from H, C1-4 alkyl, and CN; each Rg is independently selected from the group consisting of OH, NO2, CN, halo, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-4 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, cyano-C1-3 alkyl, HO-C1-3 alkyl, amino, C1-6 alkylamino, di(C1-6 alkyl)amino, thiol, C1-6 alkylthio, C1-6 alkylsulfinyl, C1-6 alkylsulfonyl, carboxy, aminocarbonyl, C1-6 alkylcarbonyl, and C1-6 alkoxycarbonyl; p is 0, 1, 2, or 3; and q is 0, 1, or 2; wherein any cycloalkyl or heterocycloalkyl group is optionally further substituted by 1 or 2 oxo groups. In a second embodiment of the invention, there is provided a compound selected from the following: to o to CD 2024202700   13 Aug 2026 or a pharmaceutically acceptable salt thereof. In a third embodiment of the invention, there is provided a compound selected from the following: thereof. and , or a pharmaceutically acceptable salt In a fourth embodiment of the invention, there is provided a compound selected from the following: 2h 2024202700   25 Aug 2026 thereof. , or a pharmaceutically acceptable salt SUMMARY The present invention provides inhibitors of the menin-MLL interaction, such as a compound of Formula I: R1-(Cy)m-(L)n I or a pharmaceutically acceptable salt thereof, wherein constituent variables are defined herein. The present invention further provides a pharmaceutical composition comprising a compound of Formula I, or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable carrier. The present invention further provides pharmaceutically acceptable salt forms of the compounds of Formula I. The present invention further provides crystalline forms of the compounds of Formaula I. 2i 2024202700   25 Aug 2026 The present invention further provides a method of inhibiting the interaction between menin and MLL comprising contacting the menin and MLL with a compound of Formula I, or a pharmaceutically acceptable salt thereof. The present invention further provides a method of treating cancer in a patient comprising administering to the patient a therapeutically effective amount of a compound of Formula I, or a pharmaceutically acceptable salt thereof. 2024202700   24 Apr 2024 The present invention further provides a method of treating insulin resistance, prediabetes, diabetes, risk of diabetes, or hyperglycemia in a patient comprising administering to the patient a therapeutically effective amount of a compound of Formula I, or a pharmaceutically acceptable salt thereof. 5              BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows an XRPD pattern characteristic of N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl )oxy)- 5 -fluoro-N-i sopropylb enzami de. Figure 2 shows an XRPD pattern characteristic of N-ethyl-2-((4-(7-(((lr,4r)-4- 10 (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide sesquifumaric acid salt. Figure 3 shows an XRPD pattern characteristic of N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide bis-methanesulfonic acid salt. 15          Figure 4 shows an XRPD pattern characteristic of N-ethyl-2-((4-(7-(((lr,4r)-4- (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide bis-hydrochloric acid salt. Figure 5 shows an XRPD pattern characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-20 yl)pyrimidin-5-yl)oxy)benzamide. Figure 6 shows an XRPD pattern characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide bis-methanesulfonic acid salt. Figure 7 shows an XRPD pattern characteristic of 5-fluoro-N,N-diisopropyl-2- 25 ((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt. Figure 8 shows an XRPD pattern characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide bis-hydrochloric acid salt. 2024202700   24 Apr 2024 Figure 9 shows XRPD pattern characteristics of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form A, Form B, Form C+Form A, Form D, Form, E, and Form F. 5          Figure 10 shows an XRPD pattern characteristic of 5-fluoro-N,N-diisopropyl-2- ((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form A. Figure 11 shows a DSC thermogram characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 10 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form A. Figure 12 shows a TGA thermogram characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form A. Figure 13 shows a DVS pattern characteristic of 5-fluoro-N,N-diisopropyl-2-((4-15 (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form A. Figure 14 shows variable tempterature (VT)-XRPD patterns characteristic of 5-fluoro-N,N-dii sopropyl -2-((4-(7-(((1 r,4r)-4-(m ethyl sulfonami do)cyclohexyl)methyl)-2,7 -diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, 20 crystalline Form A. Figure 15 shows an XRPD pattern characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form B. Figure 16 shows XRPD patterns characteristic of 5-fluoro-N,N-diisopropyl-2-((4-25 (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide fumaric acid salt, crystalline Form B and Form D isolated from a scale-up preparation as a slurry (top trace; Form B), a wet cake after vacuum filtration (middle trace; Form B), and after drying the wet cake at 45°C overnight (bottom trace; Form D). 2024202700   24 Apr 2024 Figure 17 shows a DSC thermogram characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form D. Figure 18 shows a TGA thermogram characteristic of 5-fluoro-N,N-diisopropyl- 5 2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form D. Figure 19 shows a DSC thermogram characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form F. 10          Figures 20-21 show ORTEP representations of 5-fluoro-N,N-diisopropyl-2-((4- (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide bis-methanesulfonic acid salt with 50% probability thermal ellipsoids. Figure 22 shows an ORTEP representation of 5-fluoro-N,N-diisopropyl-2-((4-(7- 15 (((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt with 50% probability thermal ellipsoids. Figure 23 shows an XRPD pattern characteristic of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 20 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt, crystalline Form D. DETAILED DESCRIPTION The present invention provides inhibitors of the menin-MLL interaction, such as a compound of Formula I: 2024202700   24 Apr 2024 R1 (Cy)m (L)n i I or a pharmaceutically acceptable salt thereof, wherein: A, B, D, and E are each independently selected from -QR^XR^)-, 5   -C(RA1)(RA2)-C(RA1)(RA2)-, -C(Ra1XRA2)-O-, -C(RA1)(RA2)-NRA3-, -C(=O)-, -C(RA1)(RA2)-C(=O)-, and -N=C(NH2)- wherein no more than one of A, B, D, and E is -C(RA1XRA2)-O-, -C(RA1XRA2)-NRA3-, -C(Ra1)(RA2)-C(=O)-, -C(=O)-, or -N=C(NH2)-; U is N or CRU, wherein Ru is H, halo, CN, OH, Ci-4 alkyl, Ci-4 alkoxy, amino, Ci-10   4 alkyl amino, or C2-8 dialkylamino; W is N or CRW, wherein Rw is H, halo, CN, OH, C1.4 alkyl, C1.4 alkoxy, amino, C1.4 alkyl amino, or C2-8 dialkylamino; X is N or CRX, wherein Rx is H, halo, CN, OH, C1.4 alkyl, C1.4 alkoxy, amino, Ci-4 alkyl amino, or C2-8 dialkylamino, wherein when X is N, the atom of L that is directly 15 bonded with X is other than N, O, or S; L is selected from -Ci-6 alkylene- and -(C1.4 alkylene)a-Q-(C 1.4 alkylene)b-, wherein the Ci-6 alkylene group and any C1.4 alkylene group of the -(C1.4 alkylene)a-Q-(C1.4 alkylene)b- group is optionally substituted with 1, 2, or 3 substituents independently selected from halo, CN, OH, C1.3 alkyl, C1.3 alkoxy, C1.3 haloalkyl, C1.3 haloalkoxy, 20 amino, C1.3 alkylamino, and di(C 1.3 alkyl)amino; Q is -O-, -S-, -S(=O)-, -S(=O)2-, -C(=O)-, -C(=O)NRq1-, -C(=O)O-, -OC(=O)NRq1-, -NRq1-, -NRqlC(=O)O-, -NRqlC(=O)NRq1-, -S(=O)2NRq1-, -C(=NRq2)-, or -C(=NRq2)-NRq1-, wherein each Rql is independently selected from H or Ci-6 alkyl, and wherein each Rq2 is independently selected from H, Ci-6 alkyl, and CN; 2024202700   24 Apr 2024 Cy is a linking C6-14 aryl, C3-18 cycloalkyl, 5-16 membered heteroaryl, or 4-18 membered heterocycloalkyl group, each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy; each RCy is independently selected from halo, Ci-6 alkyl, C1.4 haloalkyl, C1.4 5 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, Ce-io aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, CN, NO2, ORal, SRal, C(O)Rbl, C(O)NRclRdl, C(O)ORal, OC(O)Rbl, OC(O)NRclRdl, C(=NRel)NRclRdl, NRclC(=NRel)NRclRdl, NRclRdl, NRclC(O)Rbl, NRclC(O)ORal, NRclC(O)NRclRdl, NRclS(O)Rbl, NRclS(O)2Rbl, NRclS(O)2NRclRdl, S(O)Rbl, S(O)NRclRdl, S(O)2Rbl, and 10 S(O)2NRclRdl, wherein said Ci-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, Ce-io aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, and 4-10 membered heterocycloalkyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from CN, NO2, ORal, SRal, C(O)Rbl, C(O)NRclRdl, C(O)ORal, OC(O)Rbl, OC(O)NRclRdl, C(=NRel)NRclRdl, NRclC(=NRel)NRclRdl, NRclRdl, NRclC(O)Rbl, NRclC(O)ORal, 15 NRclC(O)NRclRdl, NRclS(O)Rbl, NRclS(O)2Rbl, NRclS(O)2NRclRdl, S(O)Rbl, S(O)NRclRdl, S(O)2Rbl, and S(O)2NRclRdl; R1 is H, Cy1, halo, Ci-6 alkyl, C1.4 haloalkyl, C1.4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, CN, NO2, ORa2, SRa2, C(O)Rb2, C(O)NRc2Rd2, C(O)ORa2, OC(O)Rb2, OC(O)NRc2Rd2, C(=NRe2)NRc2Rd2, NRc2C(=NRe2)NRc2Rd2, NR^R^, NRc2C(O)Rb2, 20 NRc2C(O)ORa2, NRc2C(O)NRc2Rd2, NRc2S(O)Rb2, NRc2S(O)2Rb2, NRc2S(O)2NRc2Rd2, S(O)Rb2, S(O)NRc2Rd2, S(O)2Rb2 and S(O)2NRc2Rd2, wherein said Ci-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from halo, CN, NO2, ORa2, SR32, C(O)Rb2, C(O)NRc2Rd2, C(O)ORa2, OC(O)Rb2, OC(O)NRc2Rd2, C(=NRe2)NRc2Rd2, NRc2C(=NRe2)NRc2Rd2, NR^R^, NRc2C(O)Rb2, 25 NRc2C(O)ORa2, NRc2C(O)NRc2Rd2, NRc2S(O)Rb2, NRc2S(O)2Rb2, NRc2S(O)2NRc2Rd2, S(O)Rb2, S(O)NRc2Rd2, S(O)2Rb2, and S(O)2NRc2Rd2; Y is O, S, CRY1RY2 or NRY3, wherein RY1, RY2, and RY3 are each independently selected from H and C1.4 alkyl; Z is Cy2, halo, Ci-6 alkyl, C1.4 haloalkyl, C1.4 cyanoalkyl, C2-6 alkenyl, C2-6 30 alkynyl, CN, NO2, ORa3, SRa3, C(O)Rb3, C(O)NRc3Rd3, C(O)ORa3, OC(O)Rb3, OC(O)NRc3Rd3, C(=NRe3)NRc3Rd3, NRc3C(=NRe3)NRc3Rd3, NRc3Rd3, NRc3C(O)Rb3, 2024202700   24 Apr 2024 NRc3C(O)ORa3, NRc3C(O)NRc3Rd3, NRc3S(O)Rb3, NRc3S(O)2Rb3, NRc3S(O)2NRc3Rd3, S(O)Rb3, S(O)NRc3Rd3, S(O)2Rb3, S(O)2NRc3Rd3, and P(O)Rc3Rd3 wherein said Ci-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from Cy2, halo, CN, NO2, CN, NO2, ORa3, SRa3, C(O)Rb3, 5 C(O)NRc3Rd3, C(O)ORa3, OC(O)Rb3, OC(O)NRc3Rd3, C(=NRe3)NRc3Rd3, NRc3C(=NRe3)NRc3Rd3, NRc3Rd3, NRc3C(O)Rb3, NRc3C(O)ORa3, NRc3C(O)NRc3Rd3, NRc3S(O)Rb3, NRc3S(O)2Rb3, NRc3S(O)2NRc3Rd3, S(O)Rb3, S(O)NRc3Rd3, S(O)2Rb3, and S(O)2NRc3Rd3; each R2 and R3 is independently selected from H, halo, Ci-6 alkyl, Ci-4 haloalkyl, 10 Ci-4 cyanoalkyl, C2.6 alkenyl, C2.6 alkynyl, CN, NO2, ORa4, SRa4, C(O)Rb4, C(O)NRc4Rd4, C(O)ORa4, OC(O)Rb4, OC(O)NRc4Rd4, C(=NRe4)NRc4Rd4, NRc4C(=NRe4)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, and S(O)2NRc4Rd4, wherein said Ci-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl are each optionally substituted by 1, 2, 3, or 4 15 substituents independently selected from halo, CN, NO2, ORa4, SRa4, C(O)Rb4, C(O)NRc4Rd4, C(O)ORa4, OC(O)Rb4, OC(O)NRc4Rd4, C(=NRe4)NRc4Rd4, NRc4C(=NRe4)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, and S(O)2NRc4Rd4; 20           each RA1 is independently selected from H, halo, Ci-4 alkyl, Ci-4 alkoxy, Ci-4 haloalkyl, Ci-4 haloalkoxy, amino, Ci-4 alkylamino, C2-s dialkylamino, CN, NO2, and OH; each RA2 is independently selected from H, halo, Ci-4 alkyl, Ci-4 alkoxy, Ci-4 haloalkyl, Ci-4 haloalkoxy, amino, Ci-4 alkylamino, C2-s dialkylamino, CN, NO2, and OH; each RA3 is independently selected from H, Ci-4 alkyl, Ci-4 alkoxy, Ci-4 haloalkyl, 25 C(O)RZ, and C(O)ORZ, wherein said Ci-4 alkyl is optionally substituted by phenyl, Ci-4 alkoxy, Ci-4 haloalkoxy, CN, NO2, or OH; Rz is H, Ci-4 alkyl, or phenyl; each Cy1 is independently selected from Ce-14 aryl, C3-18 cycloalkyl, 5-16 membered heteroaryl, and 4-18 membered heterocycloalkyl, each of which is optionally 30 substituted with 1, 2, 3, or 4 substituents independently selected from RCyl; 2024202700   24 Apr 2024 each Cy2 is independently selected from C6-14 aryl, C3-18 cycloalkyl, 5-16 membered heteroaryl, and 4-18 membered heterocycloalkyl, each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy2; each RCyl and RCy2 is independently selected from halo, Ci-6 alkyl, C1.4 haloalkyl, 5   C1.4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-7 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl, CN, NO2, ORa5, SRa5, C(O)Rb5, C(O)NRc5Rd5, C(O)ORa5, OC(O)Rb5, OC(O)NRc5Rd5, C(=NRe5)NRc5Rd5, NRc5C(=NRe5)NRc5Rd5, NRc5Rd5, NRc5C(O)Rb5, NRc5C(O)ORa5, NRc5C(O)NRc5Rd5, NRc5S(O)Rb5, NRc5S(O)2Rb5, NRc5S(O)2NRc5Rd5, S(O)Rb5, S(O)NRc5Rd5, S(O)2Rb5, and 10 S(O)2NRc5Rd5, wherein said Ci-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-7 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from CN, NO2, ORa5, SRa5, C(O)Rb5, C(O)NRc5Rd5, C(O)ORa5, OC(O)Rb5, OC(O)NRc5Rd5, C(=NRe5)NRc5Rd5, NRc5C(=NRe5)NRc5Rd5, NRc5Rd5, NRc5C(O)Rb5, NRc5C(O)ORa5, NRc5C(O)NRc5Rd5, 15 NRc5S(O)Rb5, NRc5S(O)2Rb5, NRc5S(O)2NRc5Rd5, S(O)Rb5, S(O)NRc5Rd5, S(O)2Rb5, and S(O)2NRc5Rd5; each Ral, Rbl, Rcl, Rdl, Ra2, Rb2, Rc2, Rd2, Ra3, Rb3, Rc3, Rd3, Ra4, Rb4, Rc4, Rd4, Ra5, Rb5, Rc5, and Rd5 is independently selected from H, Ci-6 alkyl, C1.4 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, Ce-io aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered 20 heterocycloalkyl, Ce-io aryl-Ci-6 alkyl, C3-10 cycloalkyl-Ci-6 alkyl, (5-10 membered heteroaryl)-Ci-6 alkyl, and (4-10 membered heterocycloalkyl)-Ci-6 alkyl, wherein said Ci-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, Ce-io aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, Ce-io aryl-Ci-6 alkyl, C3-10 cycloalky-Ci-6 alkyl, (5-10 membered heteroaryl)-Ci-6 alkyl, and (4-10 membered heterocycloalkyl)-Ci-6 alkyl are 25 each optionally substituted with 1, 2, 3, 4, or 5 substituents independently selected from Rs; each Rel, Re2, Re3, Re4, and Re5 is independently selected from H, C1.4 alkyl, and CN; each Rs is independently selected from the group consisting of OH, NO2, CN, 30 halo, Ci-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1.4 haloalkyl, Ci-6 alkoxy, Ci-6 haloalkoxy, cyano-Ci.3 alkyl, HO-C1.3 alkyl, amino, Ci-6 alkylamino, di(Ci-6 alkyl)amino, thiol, Ci-6 2024202700   24 Apr 2024 alkylthio, Ci-6 alkylsulfinyl, Ci-6 alkyl sulfonyl, carboxy, aminocarbonyl, Ci-6 alkylcarbonyl, and Ci-6 alkoxycarbonyl; n is 0 or 1; m is 0 or 1; 5             P is 0, 1, 2, or 3; q is 0, 1, or 2; a is 0 or 1; and b is 0 or 1, wherein any cycloalkyl or heterocycloalkyl group is optionally further substituted 10 by 1 or 2 oxo groups. In some embodiments, Y is O. In some embodiments, Y is NRY3. In some embodiments, Y is NH. In some embodiments, U is CRU. In some embodiments, U is CH. In some embodiments, W is N. 15         In some embodiments, W is CRW. In some embodiments, W is CH. In some embodiments, X is N. In some embodiments, X is CRX. In some embodiments, X is selected from CH or cnh2. In some embodiments, A, B, D, and E are each independently selected from 20   -C(RA1)(RA2)-, -C(RA1)(RA2)-C(RA1)(RA2)-, -C(Ra1)(RA2)-O-, -C(Ra1)(RA2)-C(=O)-, and —C(=O)~, wherein no more than one of A, B, D, and E is -C(RA1)(RA2)-O-, -C(RA1)(RA2)-C(=O)-, or-C(=O)-. In some embodiments, A, B, D, and E are each independently selected from -C(RA1)(RA2)-, -C(RA1)(RA2)-C(RA1)(RA2)-, and -C(RA1)(RA2)-O-, wherein no more 25 than one of A, B, D, and E is -C(RA1)(RA2)-O-. In some embodiments, A, B, D, and E are each independently selected from -C(RA1)(RA2)- or -C(RA1)(RA2)-C(RA1)(RA2)-. In some embodiments, each RA1 and RA2 are independently selected from H, OH, and NH2. 30          In some embodiments, A, B, D, and E are each independently selected from -CH2- -CH2-CH2-, and -CH2O-. 2024202700   24 Apr 2024 In some embodiments, A, B, D, and E are each independently selected from -CH2- or -CH2-CH2-. In some embodiments, the spiro moiety represented by the below formula: wherein e and f indicate points of attachment to the remainder of the molecule, is selected from: 2024202700   24 Apr 2024 In some embodiments, the spiro moiety represented by the below formula: e v / W I X A^B D; ,E w f 5 wherein e and f indicate points of attachment to the remainder of the molecule, is selected from: 2024202700   24 Apr 2024 In some embodiments, the spiro moiety represented by the below formula: e v / W I X A^B D; ,E w f 5 wherein e and f indicate points of attachment to the remainder of the molecule, is selected from: 2024202700   24 Apr 2024 In some embodiments, L is selected from -Ci-6 alkylene- optionally substituted with 1, 2, or 3 substituents independently selected from halo, CN, OH, C1.3 alkyl, C1.3 alkoxy, C1.3 haloalkyl, C1.3 haloalkoxy, amino, C1.3 alkylamino, and di(Ci-3 alkyl)amino. In some embodiments, L is selected from methylene, ethylene, and -CH2- 5 CH(OH)-. In some embodiments, L is methylene. In some embodiments, L is selected from -(C1.4 alkylene)a-Q-(Ci-4 alkylene)b-, wherein any C1.4 alkylene group of the -(C1.4 alkyl ene)a-Q-(C 1.4 alkylene)b- group is optionally substituted with 1, 2, or 3 substituents independently selected from halo, CN, 10 OH, C1.3 alkyl, C1.3 alkoxy, C1.3 haloalkyl, C1.3 haloalkoxy, amino, C1.3 alkylamino, and di(Ci-3 alkyl)amino. In some embodiments, a is 1. In some embodiments, a is 0. In some embodiments, b is 1. 15          In some embodiments, b is 0. In some embodiments, a and b are each 1. In some embodiments, a and b are each 0. In some embodiments, a is 1 and b is 0. In some embodiments, a is 0 and b is 1. 20          In some embodiments, L is selected from -C(O)-CH2-, -C(O)-CH2-CH2-, C(O), - NH-CH2-, NH, -C(O)-CH(NH2)-, -NH-CH(CH3)-, -N(CH3)-C(O)-, N(CH3)-CH2-, -ch2-CH2-O-, and -C(O)-NH-. In some embodiments, Cy is a linking phenyl, C3-18 cycloalkyl, 5-10 membered heteroaryl, or 4-9 membered heterocycloalkyl group, each of which is optionally 25 substituted with 1, 2, 3, or 4 substituents independently selected from RCy. In some embodiments, Cy is a linking phenyl, C3-18 cycloalkyl, 5-10 membered heteroaryl, or 4-9 membered heterocycloalkyl group, each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy. In some embodiments, Cy is a linking group having the formula: 2024202700   24 Apr 2024 CH JW 2024202700   24 Apr 2024 '       , each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy. In some embodiments, Cy is a linking group having the formula: 5         In some embodiments, Z is Cy2 or C(O)NRc3Rd3. In some embodiments, each Cy2 is independently selected from Ce-io aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, and 4-10 membered heterocycloalkyl, each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy2 10          In some embodiments, each Cy2 is independently selected from phenyl, C3-10 cycloalkyl, 5-6 membered heteroaryl, and 4-6 membered heterocycloalkyl, each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy2. In some embodiments, n is 0. In some embodiments, n is 1. 15          In some embodiments, m is 0. In some embodiments, m is 1. In some embodiments, p is 0. In some embodiments, p is 1. In some embodiments, q is 0. 20          In some embodiments, q is 1. In some embodiments, the compound of Formula I, or a pharmaceutically acceptable salt thereof, is a compound of Formula Ila, lib, Illa, or Illb: 2024202700   24 Apr 2024 Ila R1 (Cy)m (L)n I R1 (Cy)m (L)n I X AZ 'b zXx Illa nib 5 or a pharmaceutically acceptable salt thereof. In some embodiments, the compound of Formula I, or a pharmaceutically acceptable salt thereof, is a compound of Formula IVa, IVb, IVc, IVd, IVe, or IVf: IVa 2024202700   24 Apr 2024 2024202700   24 Apr 2024 In some embodiments, the compound or pharmaceutically acceptable salt of the compound of Formula I provided herein is crystalline. As used herein, “crystalline” or “crystalline form” is meant to refer to a certain lattice configuration of a crystalline substance. Different crystalline forms of the same substance typically have different 5 crystalline lattices (e.g., unit cells) which are attributed to different physical properties that are characteristic of each of the crystalline forms. In some instances, different lattice configurations have different water or solvent content. Different crystalline forms of the same compound or salt can have different bulk properties relating to, for example, hygroscopicity, solubility, stability, and the like. 10 Forms with high melting points often have good thermodynamic stability which is advantageous in prolonging shelf-life drug formulations containing the solid form. Forms with lower melting points often are less thermodynamically stable, but are advantageous in that they have increased water solubility, translating to increased drug bioavailability. Forms that are weakly hygroscopic are desirable for their stability to heat 15 and humidity and are resistant to degradation during long storage. The different crystalline forms can be identified by solid state characterization methods such as by X-ray powder diffraction (XRPD). Other characterization methods such as differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic vapor sorption (DVS), and the like further help identify the form as well as help 20 determine stability and solvent / water content. An XRPD pattern of reflections (peaks) is typically considered a fingerprint of a particular crystalline form. It is well known that the relative intensities of the XRPD peaks can widely vary depending on, inter alia, the sample preparation technique, crystal size distribution, various filters used, the sample mounting procedure, and the particular 25 instrument employed. In some instances, new peaks may be observed or existing peaks may disappear, depending on the type of the instrument or the settings. As used herein, the term “peak” refers to a reflection having a relative height / intensity of at least about 5% of the maximum peak height / intensity. Moreover, instrument variation and other factors can affect the 2-theta values. Thus, peak assignments, such as those reported 30 herein, can vary by plus or minus about 0.2° (2-theta), and the term “substantially” and 2024202700   24 Apr 2024 “about” as used in the context of XRPD herein is meant to encompass the abovementioned variations. In the same way, temperature readings in connection with DSC, TGA, or other thermal experiments can vary about ±3 °C depending on the instrument, particular 5 settings, sample preparation, etc. Accordingly, a crystalline form reported herein having a DSC thermogram “substantially” as shown in any of the Figures or the term “about” is understood to accommodate such variation. The present invention provides crystalline forms of certain compounds, or salts thereof. In some embodiments, the compound of Formula I is 5-fluoro-N,N-diisopropyl-10 2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide, or a pharmaceutically acceptable salt thereof. In some embodiments, the present invention provides crystalline the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide characterized, for example, by 15 an XRPD profile substantially as shown in Figure 5. In some embodiments, crystalline 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 6.2°, about 8.3°, about 16.1°, about 16.6°, 20 about 17.3°, about 19.0°, about 23.5°, about 25.3°, and about 26.9°. In some embodiments, crystalline 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 6.2°, about 8.3°, about 16.1°, about 16.6°, 25 and about 19.0°. In some embodiments, the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide can be isolated as a bis-methanesulfonic acid salt which can be crystalline having an XRPD profile substantially as shown in Figure 6. 30          In some embodiments, the crysatalline form of the 5-fluoro-N,N-diisopropyl-2- ((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 2024202700   24 Apr 2024 yl)pyrimidin-5-yl)oxy)benzamide bis-methanesulfonic acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 5.6°, about 8.8°, about 10.2°, about 12.6°, about 13.8°, about 15.3°, about 16.2°, about 16.8°, about 17.6°, about 18.6°, about 20.3°, about 20.9°, about 21.2°, about 22.7°, and 5 about 24.6°. In some embodiments, the crystalline form of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide bis-methanesulfonic acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 10   5.6°, about 8.8°, about 10.2°, about 12.6°, about 13.8°, about 15.3°, about 16.2°, about 16.8°, about 17.6°, about 18.6°, about 20.3°. In some embodiments, the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide can be isolated as a bis-hydrochloric acid salt which can be crystalline 15 having an XRPD profile substantially as shown in Figure 8. In some embodiments, the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide can be isolated as a fumaric acid salt, such as a sesquifumaric acid salt which can be crystalline. The crystalline sesquifumaric acid salt can be hydrated (e.g., a 20 monohydrate), solvated (e.g., contains solvent other than water), or anhydrous and unsolvated. In some embodiments, the crystalline form of the sesquifumaric acid salt is substantially anhydrous or substantially unsolvated. In some embodiments, the crystalline form of the sesquifumaric acid salt is hydrated or solvated. In some embodiments, the crystalline form of the sesquifumaric acid salt is hydrated. In some 25 embodiments, the crystalline form of the sesquifumaric acid salt is a monohydrate. In some embodiments, the crystalline form of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has an XRPD profile substantially as shown in Figure 7. 30          In some embodiments, the crystalline form of the 5-fluoro-N,N-diisopropyl-2-((4- (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 2024202700   24 Apr 2024 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 2.9°, about 5.8°, about 8.7°, about 13.2°, about 16.0°, about 17.6°, about 19.1°, about 20.3°, about 20.4°, about 20.8°, about 21.8°, about 22.9°, about 23.0°, about 23.3°, about 24.9°, 5 and about 26.0°. In some embodiments, the crystalline form of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 2.9°, 10 about 5.8°, about 8.7°, about 13.2°, about 16.0°, about 17.6°, about 19.1°, about 20.3°, about 20.4°, about 20.8°, about 21.8°, about 23.0°, about 23.3°, about 24.9°, and about 26.0°. In some embodiments, the crystalline form of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 15 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 2.9°, about 5.8°, about 8.7°, about 13.2°, about 16.0°, about 19.1°, about 21.8°, about 24.9°, and about 26.0°. In some embodiments, the crystalline form of the 5-fluoro-N,N-diisopropyl-2-((4- 20 (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 2.9°, about 5.8°, about 8.7°, about 13.2°, about 16.0°, about 19.1°, and about 21.8°. In some embodiments, the crystalline form of the 5-fluoro-N,N-diisopropyl-2-((4- 25 (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt is selected from crystalline Form A, crystalline Form B, crystalline Form C, crystalline Form D, crystalline Form E, and crystalline Form F. In some embodiments, crystalline Form A of the 5-fluoro-N,N-diisopropyl-2-((4- 30 (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 2024202700   24 Apr 2024 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt monohydrate has an XRPD profile substantially as shown in Figure 10. In some embodiments, crystalline Form A of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 5 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 5.8°, about 13.2°, about 15.9°, about 19.2°, about 20.3°, about 21.8°, about 23.0°, and about 23.3°. In some embodiments, crystalline Form A of the 5-fluoro-N,N-diisopropyl-2-((4- 10 (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt monohydrate is characterized by a DSC thermogram having an endothermic peak at about 183 °C. In some embodiments, crystalline Form A of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 15 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt monohydrate is characterized by a thermographic analysis (TGA) substantially as shown in Figure 12. In some embodiments, crystalline Form A of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt monohydrate is characterized 20 by a dynamic vapor sorption analysis substantially as shown in Figure 13. In some embodiments, crystalline Form B of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has an XRPD profile substantially as shown in Figure 15. 25          In some embodiments, crystalline Form B of the 5-fluoro-N,N-diisopropyl-2-((4- (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 6.2°, about 7.8°, about 8.5°, about 10.9°, about 12.6°, about 13.2°, about 13.5°, about 16.1°, 30 about 19.0°, about 19.3°, about 21.2°, about 21.4°, and about 21.6°. 2024202700   24 Apr 2024 In some embodiments, crystalline Form D of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has an XRPD profile substantially as shown in Figure 23. 5          In some embodiments, crystalline Form D of the 5-fluoro-N,N-diisopropyl-2-((4- (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 7.2°, about 8.5°, about 11.8°, about 14.5°, about 16.0°, about 17.4°, about 19.3°, about 19.7°, 10 and about 21.8°. In some embodiments, crystalline Form D of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt is characterized by a DSC thermogram having an endothermic peak at about 167 °C. 15          In some embodiments, crystalline Form D of the 5-fluoro-N,N-diisopropyl-2-((4- (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt is characterized by a thermographic analysis (TGA) substantially as shown in Figure 18. In some embodiments, crystalline Form E of the 5-fluoro-N,N-diisopropyl-2-((4-20 (7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has an XRPD profile substantially as shown in Figure 9. In some embodiments, the crystalline Form F of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 25 yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt has an XRPD profile substantially as shown in Figure 9. In some embodiments, the crystalline Form F of the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide sesquifumaric acid salt is characterized by a 30 thermographic analysis (TGA) substantially as shown in Figure 18. 2024202700   24 Apr 2024 In some embodiments, the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide is a benzenesulfonic acid salt (besylate) which can be crystalline. In some embodiments, the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4- 5 (methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide is a naphthalenedisulfonic acid (napadisylate) salt which can be crystalline. In some embodiments, the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide is a naphthalene-l,5-disulfonic acid salt which can be crystalline. 10          In some embodiments, the 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4- (methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide is a toluenesulfonic acid (tosylate) salt which can be crystalline. The present invention further provides crystalline forms of the compoundN-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2- 15 yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide, or a pharmaceutically acceptable salt thereof. In some embodiments, the present invention provides a crystalline form of N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide, having, 20 for example, an XRPD profile substantially as shown in Figure 1. In some embodiments, the crystalline form of N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 9.7°, about 11.6°, about 25    12.6°, about 16.6°, about 17.5°, about 18.8°, about 19.2°, about 19.8°, about 21.0°, and about 25.3°. In some embodiments, the N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide can be isolated as a fumaric acid salt, such as a 30 sesquifumaric acid salt, which can be crystalline. In some embodiments, the crystalline form of the sesquifumaric acid salt is substantially anhydrous. In some embodiments, the 2024202700   24 Apr 2024 crystalline form of the sesquifumaric acid salt is hydrated or solvated. In some embodiments, the crystalline form of the sesquifumaric acid salt is hydrated. In some embodiments, the crystalline form of the sesquifumaric acid salt is a monohydrate. In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4- 5 (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide sesquifumaric acid salt has an XRPD profile substantially as shown in Figure 2. In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5- 10 yl)oxy)-5-fluoro-N-isopropylbenzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 5.8°, about 8.7°, about 13.2°, about 16.0°, about 17.4°, about 17.6°, about 19.1°, about 20.3°, about 21.8°, about 23.0°, about 23.3°, about 24.9°, and about 26.0°. In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4- 15 (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 5.8°, about 8.7°, about 13.2°, about 16.0°, about 17.4°, about 17.6°, about 19.1°, about 20.3°, about 21.8°, and about 23.0°. 20          In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4- (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide sesquifumaric acid salt has at least one, at least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 5.8°, about 8.7°, about 13.2°, about 16.0°, about 17.4°, about 17.6°, and about 19.1°. 25          In some embodiments, the N-ethyl-2-((4-(7-(((lr,4r)-4- (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide is a bis-methanesulfonic acid salt which can be crystalline, having, for example, an XRPD profile substantially as shown in Figure 3. In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4- 30 (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide bis-methanesulfonic acid salt has at least one, at 2024202700   24 Apr 2024 least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 5.6°, about 11.0°, about 13.3°, about 16.7°, about 20.1°, about 20.9°, about 22.1°, about 23.6°, about 24.9°, and about 29.6°. In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4- 5 (ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide bis-methanesulfonic acid salt has at least one XRPD peak, in terms of 2-theta, selected from about 5.6° and about 16.7°. In some embodiments, the N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5- 10 yl)oxy)-5-fluoro-N-isopropylbenzamide is a bis-hydrochloric acid salt which can be crystalline, having, for example, an XRPD profile substantially as shown in Figure 4. In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropylbenzamide bis-hydrochloric acid salt has at least one, at 15 least two, at least three, or at least four XRPD peaks, in terms of 2-theta, selected from about 4.7°, about 10.7°, about 13.4°, about 15.9°, about 17.0°, about 19.5°, about 20.1°, about 23.8°, about 25.8°, and about 28.1°. In some embodiments, the crystalline form of the N-ethyl-2-((4-(7-(((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-20 yl)oxy)-5-fluoro-N-isopropylbenzamide bis-hydrochloric acid salt has at least one or two XRPD peaks, in terms of 2-theta, selected from about 4.7°, about 17.0°, and about 19.5°. It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, can also be provided in combination in a single embodiment. Conversely, various features of the invention which are, for brevity, 25 described in the context of a single embodiment, can also be provided separately or in any suitable subcombination. As used herein, the phrase "optionally substituted" means unsubstituted or substituted. As used herein, the term "substituted" means that a hydrogen atom is removed and replaced by a substituent. The term “substituted” may also mean that two 30 hydrogen atoms are removed and replaced by a divalent substituent such as an oxo or 2024202700   24 Apr 2024 sulfide group. It is to be understood that substitution at a given atom is limited by valency. At various places in the present specification, substituents of compounds of the invention are disclosed in groups or in ranges. It is specifically intended that the 5 invention include each and every individual subcombination of the members of such groups and ranges. For example, the term “Ci-6 alkyl” is specifically intended to individually disclose methyl, ethyl, C3 alkyl, C4 alkyl, C5 alkyl, and Ce alkyl. The term "z-membered" (where z is an integer) typically describes the number of ring-forming atoms in a moiety where the number of ring-forming atoms is z. For 10 example, piperidinyl is an example of a 6-membered heterocycloalkyl ring, pyrazolyl is an example of a 5-membered heteroaryl ring, pyridyl is an example of a 6-membered heteroaryl ring, and 1, 2, 3, 4-tetrahydro-naphthalene is an example of a 10-membered cycloalkyl group. At various places in the present specification, linking substituents are described. It 15 is specifically intended that each linking substituent include both the forward and backward forms of the linking substituent. For example, -NR(CR’R”)n- includes both -NR(CR’R”)n- and -(CR’R”)nNR-. Where the structure clearly requires a linking group, the Markush variables listed for that group are understood to be linking groups. For example, if the structure requires a linking group and the Markush group definition for 20 that variable lists “alkyl” or “aryl” then it is understood that the “alkyl” or “aryl” represents a linking alkylene group or arylene group, respectively. At various places in the present specification various aryl, heteroaryl, cycloalkyl, and heterocycloalkyl rings are described. Unless otherwise specified, these rings can be attached to the rest of the molecule at any ring member as permitted by valency. For 25 example, the term “a pyridine ring” or “pyridinyl” may refer to a pyridin-2-yl, pyridin-3-yl, or pyridin-4-yl ring. For compounds of the invention in which a variable appears more than once, each variable can be a different moiety independently selected from the group defining the variable. For example, where a structure is described having two R groups that are 30 simultaneously present on the same compound, the two R groups can represent different moieties independently selected from the group defined for R. 2024202700   24 Apr 2024 As used herein, the term "Ci-j alkyl," employed alone or in combination with other terms, refers to a saturated hydrocarbon group that may be straight-chain or branched, having i to j carbons. In some embodiments, the alkyl group contains from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms, or from 1 to 3 carbon atoms. Examples of alkyl 5 moieties include, but are not limited to, chemical groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, s-butyl, and t-butyl. In some embodiments, where an alkyl group is a linking group, it may be refered to as "Ci-j alkylene." As used herein, the term "Ci-j alkoxy," employed alone or in combination with other terms, refers to a group of formula -O-alkyl, wherein the alkyl group has i to j 10 carbons. Example alkoxy groups include methoxy, ethoxy, and propoxy (e.g., n-propoxy and isopropoxy). In some embodiments, the alkyl group has 1 to 3 carbon atoms. As used herein, "Ci-j alkenyl," employed alone or in combination with other terms, refers to an unsaturated hydrocarbon group having one or more double carbon-carbon bonds and having i to j carbons. In some embodiments, the alkenyl moiety contains 2 to 6 15 or 2 to 4 carbon atoms. Example alkenyl groups include, but are not limited to, ethenyl, n-propenyl, isopropenyl, n-butenyl, sec-butenyl, and the like. As used herein, "Ci-j alkynyl," employed alone or in combination with other terms, refers to an unsaturated hydrocarbon group having one or more triple carboncarbon bonds and having i to j carbons. Example alkynyl groups include, but are not 20 limited to, ethynyl, propyn-l-yl, propyn-2-yl, and the like. In some embodiments, the alkynyl moiety contains 2 to 6 or 2 to 4 carbon atoms. As used herein, the term "Ci-j alkylamino," employed alone or in combination with other terms, refers to a group of formula -NH(alkyl), wherein the alkyl group has i to j carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms. 25          As used herein, the term "di-Ci-j-alkylamino," employed alone or in combination with other terms, refers to a group of formula -N(alkyl)2, wherein each of the two alkyl groups has, independently, i to j carbon atoms. In some embodiments, each alkyl group independently has 1 to 6 or 1 to 4 carbon atoms. In some embodiments, the dialkylamino group is -N(Ci-4 alkyl)2 such as, for example, dimethylamino or diethylamino. 30          As used herein, the term "Ci-j alkylthio," employed alone or in combination with other terms, refers to a group of formula -S-alkyl, wherein the alkyl group has i to j 2024202700   24 Apr 2024 carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms. In some embodiments, the alkylthio group is Ci-4 alkylthio such as, for example, methylthio or ethylthio. As used herein, the term “thiol,” employed alone or in combination with other 5 terms, refers to -SH. As used herein, the term "amino," employed alone or in combination with other terms, refers to a group of formula -NH2. As used herein, "Ci-j haloalkoxy," employed alone or in combination with other terms, refers to a group of formula -O-haloalkyl having i to j carbon atoms. An example 10 haloalkoxy group is OCF3. An additional example haloalkoxy group is OCHF2. In some embodiments, the haloalkoxy group is fluorinated only. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms. In some embodiments, the haloalkoxy group is C1.4 haloalkoxy. As used herein, the term "halo," employed alone or in combination with other 15 terms, refers to a halogen atom selected from F, Cl, I or Br. In some embodiments, "halo" refers to a halogen atom selected from F, Cl, or Br. In some embodiments, the halo substituent is F. As used herein, the term "Ci-j haloalkyl," employed alone or in combination with other terms, refers to an alkyl group having from one halogen atom to 2s+l halogen 20 atoms which may be the same or different, where "s" is the number of carbon atoms in the alkyl group, wherein the alkyl group has i to j carbon atoms. In some embodiments, the haloalkyl group is fluorinated only. In some embodiments, the haloalkyl group is fluoromethyl, difluoromethyl, or trifluoromethyl. In some embodiments, the haloalkyl group is trifluoromethyl. In some embodiments, the haloalkyl group is 2,2,2 25 trifluoroethyl. In some embodiments, the haloalkyl group is 2,2-difluoroethyl. In some embodiments, the haloalkyl group has 1 to 6 or 1 to 4 carbon atoms. As used herein, "Ci-j cyanoalkyl," employed alone or in combination with other terms, refers to a group of formula CN-(Ci-j alkyl)-. As used herein, the term "aryl," employed alone or in combination with other 30 terms, refers to a monocyclic or polycyclic (e.g., having 2, 3 or 4 fused rings) aromatic hydrocarbon, such as, but not limited to, phenyl, 1-naphthyl, 2-naphthyl, anthracenyl, 2024202700   24 Apr 2024 phenanthrenyl, and the like. In some embodiments, aryl is Ce-io aryl. In some embodiments, aryl is C6-14 aryl. In some embodiments, the aryl group is a naphthalene ring or phenyl ring. In some embodiments, the aryl group is phenyl. As used herein, the term "Ci-j cycloalkyl," employed alone or in combination with 5 other terms, refers to a non-aromatic cyclic hydrocarbon moiety having i to j ringforming carbon atoms, which may optionally contain one or more alkenylene groups as part of the ring structure. Cycloalkyl groups can include mono- or polycyclic ring systems. Polycyclic ring systems can include fused ring systems and spirocycles. Also included in the definition of cycloalkyl are moieties that have one or more aromatic rings 10 fused (i.e., having a bond in common with) to the cycloalkyl ring, for example, benzo or pyrido derivatives of cyclopentane, cyclopentene, cyclohexane, and the like. A heterocycloalkyl group that includes a fused aromatic (e.g., aryl or heteroaryl) moiety can be attached to the molecule through an atom from either the aromatic or non-aromatic portion. One or more ring-forming carbon atoms of a cycloalkyl group can be oxidized to 15 form carbonyl linkages. In some embodiments, cycloalkyl is C3-10 cycloalkyl, C3-7 cycloalkyl, or C5-6 cycloalkyl. Exemplary cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, cyclohexadienyl, cycloheptatrienyl, norbomyl, norpinyl, norcarnyl, and the like. Further exemplary cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, and 20 cyclohexyl. Additional example cycloalkyl groups, where the cycloalkyl group has a fused aryl or heteroaryl moiety, include tetrahydronaphthalen-2-yl, 2,3-dihydro-lH-inden-2-yl; 2,3,4,9-tetrahydro-lH-carbazol-7-yl; 2,6,7,8-tetrahydrobenzo[cd]indazol-4-yl; and 5,6,7,8,9,10-hexahydrocyclohepta[b]indol-3-yl. As used herein, the term "heteroaryl," employed alone or in combination with 25 other terms, refers to a monocyclic or polycyclic (e.g., having 2, 3 or 4 fused rings) aromatic heterocylic moiety, having one or more heteroatom ring members selected from nitrogen, sulfur and oxygen. In some embodiments, the heteroaryl group has 1, 2, 3, or 4 heteroatom ring members. In some embodiments, the heteroaryl group has 1, 2, or 3 heteroatom ring members. In some embodiments, the heteroaryl group has 1 or 2 30 heteroatom ring members. In some embodiments, the heteroaryl group has 1 heteroatom ring member. In some embodiments, the heteroaryl group is 5- to 10-membered or 5- to 2024202700   24 Apr 2024 6-membered. In some embodiments, the heteroaryl group is 5-membered. In some embodiments, the heteroaryl group is 6-membered. In some embodiments, the heteroaryl group is 9- or 10-membered bicyclic. In some embodiments, the heteroaryl is 9-membere bicyclic. When the heteroaryl group contains more than one heteroatom ring member, 5 the heteroatoms may be the same or different. The nitrogen atoms in the ring(s) of the heteroaryl group can be oxidized to form N-oxides. Example heteroaryl groups include, but are not limited to, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, pyrrolyl, pyrazolyl, azolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, imidazolyl, furanyl, thiophenyl, triazolyl, tetrazolyl, thiadiazolyl, quinolinyl, isoquinolinyl, indolyl, benzothiopheneyl, 10 benzofuranyl, benzisoxazolyl, benzoimidazolyl, imidazo[l, 2-b]thiazolyl, purinyl, triazinyl, and the like. In some embodiments, the heteroaryl group is 9H-carbazol-2-yl; lH-benzo[d]imidazol-6-yl; lH-indol-6-yl; lH-indazol-6-yl; 2H-indazol-4-yl; 1H-benzo[d][l,2,3]triazol-6-yl; benzo[d]oxazol-2-yl; quinolin-6-yl; or benzo[d]thiazol-2-yl. As used herein, the term "heterocycloalkyl," employed alone or in combination 15 with other terms, refers to a non-aromatic heterocyclic ring system, which may optionally contain one or more unsaturations as part of the ring structure, and which has at least one heteroatom ring member independently selected from nitrogen, sulfur and oxygen. In some embodiments, the heterocycloalkyl group has 1, 2, 3, or 4 heteroatom ring members. In some embodiments, the heterocycloalkyl group has 1, 2, or 3 heteroatom 20 ring members. In some embodiments, the heterocycloalkyl group has 1 or 2 heteroatom ring members. In some embodiments, the heterocycloalkyl group has 1 heteroatom ring member. When the heterocycloalkyl group contains more than one heteroatom in the ring, the heteroatoms may be the same or different. Example ring-forming members include CH, CH2, C(O), N, NH, O, S, S(O), and S(O)2. Heterocycloalkyl groups can 25 include mono- or polycyclic (e.g., having 2, 3 or 4 fused rings) ring systems. Polycyclic rings can include both fused systems and spirocycles. Also included in the definition of heterocycloalkyl are moi eties that have one or more aromatic rings fused (i.e., having a bond in common with) to the non-aromatic ring, for example, 1, 2, 3, 4-tetrahydro-quinoline, dihydrobenzofuran and the like. A heterocycloalkyl group that includes a fused 30 aromatic moiety can be attached to the molecule through an atom from either the aromatic or non-aromatic portion. The carbon atoms or heteroatoms in the ring(s) of the 2024202700   24 Apr 2024 heterocycloalkyl group can be oxidized to form a carbonyl, sulfinyl, or sulfonyl group (or other oxidized linkage) or a nitrogen atom can be quaternized. In some embodiments, heterocycloalkyl is 5- to 10-membered, 4- to 10-membered, 4- to 7-membered, 5membered, or 6-membered. Examples of heterocycloalkyl groups include 1, 2, 3, 4 5 tetrahydro-quinolinyl, dihydrobenzofuranyl, azetidinyl, azepanyl, pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, and pyranyl. Examples of heterocycloalkyl groups that include one or more fused aromatic groups (e.g., aryl or heteroaryl) include N-(2'-oxospiro[cyclohexane-l,3'-indolin]-6'-yl; 1,2,3,4-tetrahydroisoquinolin-6-yl; 2,3-dihydro-lH-benzo[d]imidazol-5-yl; 1,3 10 dihydrospiro[indene-2,3'-indolin]-6'-yl; 2,3-dihydrobenzo[d]oxazol-5-yl; 1,2-dihydroquinolin-7-yl; indolin-6-yl; spiro[cyclopentane-l,3'-indolin]-6'-yl; spiro[cyclohexane-l,3'-indolin]-6'-yl; chroman-6-yl; 3,4-dihydro-2H-benzo[b][l,4]oxazin-6-yl; and benzo[d][l,3]dioxol-5-yl. As used herein, the term “arylalkyl,” employed alone or in combination with other 15 terms, refers to an alkyl group substituted by an aryl group. As used herein, the term “cycloalkylalkyl,” employed alone or in combination with other terms, refers to an alkyl group substituted by a cycloalkyl group. As used herein, the term “heteroarylalkyl,” employed alone or in combination with other terms, refers to an alkyl group substituted by a heteroaryl group. 20          As used herein, the term “hetercycloalkylalkyl,” employed alone or in combination with other terms, refers to an alkyl group substituted by a heterocycloalkyl group. As used herein, the term “Ci-j alkylsulfinyl,” employed alone or in combination with other terms, refers to a group of formulat -S(=O)-(Ci-j alkyl). 25          As used herein, the term “Ci-j alkylsulfinyl,” employed alone or in combination with other terms, refers to a group of formulat -S(=0)2-(Ci-j alkyl). As used herein, the term “carboxy,” employed alone or in combination with other terms, refers to a -C(=O)OH group. As used herein, the term “Ci-j alkylcarbonyl,” employed alone or in combination 30 with other terms, refers to a group of formula -C(=O)-(Ci-j alkyl). 2024202700   24 Apr 2024 As used herein, the term “Ci-j alkoxycarbonyl,” employed alone or in combination with other terms, refers to a group of formula -C(=O)O-(Ci-j alkyl). As used herein, the term “aminocarbonyl,” employed alone or in combination with other terms, refers to a group of formula -C(=O)NH2. 5          The compounds described herein can be asymmetric (e.g., having one or more stereocenters). All stereoisomers, such as enantiomers and diastereoisomers, are intended unless otherwise indicated. Where a compound name or structure is silent with respect to the stereochemistry of a stereocenter, all possible configurations at the stereocenter are intended. Compounds of the present invention that contain asymmetrically substituted 1 o carbon atoms can be isolated in optically active or racemic forms. Methods on how to prepare optically active forms from optically inactive starting materials are known in the art, such as by resolution of racemic mixtures or by stereoselective synthesis. Geometric isomers of olefins, C=N double bonds, and the like can also be present in the compounds described herein, and all such stable isomers are contemplated in the present invention. 15 Cis and trans geometric isomers of the compounds of the present invention are described and may be isolated as a mixture of isomers or as separated isomeric forms. When the compounds of the invention contain a chiral center, the compounds can be any of the possible stereoisomers. In compounds with a single chiral center, the stereochemistry of the chiral center can be (R) or (S). In compounds with two chiral 20 centers, the stereochemistry of the chiral centers can each be independently (R) or (S) so the configuration of the chiral centers can be (R) and (R), (R) and (S); (S) and (R), or (S) and (S). In compounds with three chiral centers, the stereochemistry each of the three chiral centers can each be independently (R) or (S) so the configuration of the chiral centers can be (R), (R) and (R); (R), (R) and (S); (R), (S) and (R); (R), (S) and (S); (S), 25    (R) and (R); (S), (R) and (S); (S), (S) and (R); or (S), (S) and (S). Resolution of racemic mixtures of compounds can be carried out by any of numerous methods known in the art. An example method includes fractional recrystallization using a chiral resolving acid which is an optically active, salt-forming organic acid. Suitable resolving agents for fractional recrystallization methods are, for 30 example, optically active acids, such as the D and L forms of tartaric acid, di acetyl tartaric acid, dibenzoyl tartaric acid, mandelic acid, malic acid, lactic acid or the various optically 2024202700   24 Apr 2024 active camphorsulfonic acids such as P-camphorsulfonic acid. Other resolving agents suitable for fractional crystallization methods include stereoisomerically pure forms of a-methylbenzylamine (e.g., S and R forms, or diastereoisomerically pure forms), 2-phenylglycinol, norephedrine, ephedrine, N-methylephedrine, cyclohexyl ethylamine, 1, 5 2-diaminocyclohexane, and the like. Resolution of racemic mixtures can also be carried out by elution on a column packed with an optically active resolving agent (e.g., dinitrobenzoylphenylglycine). Suitable elution solvent composition can be determined by one skilled in the art. When a disclosed compound is named or depicted without indicating the 10 stereochemistry of one or more stereocenters, each of the stereoisomers resulting from the possible stereochemistries at the undefined stereocenter(s) are intended to be encompassed. For example, if a stereocenter is not designated as R or S, then either or both are intended. Compounds of the invention also include tautomeric forms. Tautomeric forms 15 result from the swapping of a single bond with an adjacent double bond together with the concomitant migration of a proton. Tautomeric forms include prototropic tautomers which are isomeric protonation states having the same empirical formula and total charge. Example prototropic tautomers include ketone - enol pairs, amide - imidic acid pairs, lactam - lactim pairs, amide - imidic acid pairs, enamine - imine pairs, and annular 20 forms where a proton can occupy two or more positions of a heterocyclic system, for example, 1H- and 3H-imidazole, 1H-, 2H- and 4H- 1, 2, 4-triazole, 1H- and 2H-isoindole, and 1H- and 2H-pyrazole. Tautomeric forms can be in equilibrium or sterically locked into one form by appropriate substitution. Compounds of the invention can also include all isotopes of atoms occurring in 25 the intermediates or final compounds. Isotopes include those atoms having the same atomic number but different mass numbers. Isotopes of constituent atoms of the compounds of the invention can be present in natural or non-natural abundance. Examples of isotopes of hydrogen include deuterium and tritium. In some embodiments, the compounds of the invention are deuterated, meaning at least one deuterium atom is 30 present in the place of a hydrogen atom. In some embodiments, 1, 2, 3, 4, 5, 6, 7, or 8 2024202700   24 Apr 2024 hydrogens in a compound of the invention are replaced by deuterium. Methods for replacing hydrogen with deuterium in a molecule are known in the art. The term "compound" as used herein is meant to include all stereoisomers, geometric isomers, tautomers, and isotopes of the structures depicted. Compounds herein 5 identified by name or structure as one particular tautomeric form are intended to include other tautomeric forms unless otherwise specified (e.g., in the case of purine rings, unless otherwise indicated, when the compound name or structure has the 9H tautomer, it is understood that the 7H tautomer is also encompassed). All compounds, and pharmaceutically acceptable salts thereof, can be found 1 o together with other substances such as water and solvents (e.g., hydrates and solvates) or can be isolated. In some embodiments, the compounds of the invention, or salts thereof, or crystalline forms of any of the aforementioned, are purified or substantially isolated. By "substantially isolated" is meant that the compound is at least partially or substantially 15 separated from the environment in which it was formed or detected. Partial separation can include, for example, a composition enriched in a compound of the invention. Substantial separation can include compositions containing at least about 50%, at least about 60%, at least about 70%, at least about 80%, at least about 90%, at least about 95%, at least about 97%, or at least about 99% by weight of the compounds of the invention, or salt thereof. 20 In some embodiments, the compounds of the invention, or salts thereof, or crystalline forms of any of the aforementioned, can be prepared with a purity of about 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 98% or more, or 99% or more. The phrase "pharmaceutically acceptable" is employed herein to refer to those compounds, materials, compositions, and / or dosage forms which are, within the scope of 25 sound medical judgment, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit / risk ratio. The expressions, "ambient temperature" and "room temperature," as used herein, are understood in the art, and refer generally to a temperature, e.g., a reaction 30 temperature, that is about the temperature of the room in which the reaction is carried out, for example, a temperature from about 20 °C to about 30 °C. 2024202700   24 Apr 2024 The present invention also includes pharmaceutically acceptable salts of the compounds described herein. As used herein, "pharmaceutically acceptable salts" refers to derivatives of the disclosed compounds wherein the parent compound is modified by converting an existing acid or base moiety to its salt form. Examples of pharmaceutically 5 acceptable salts include, but are not limited to, mineral or organic acid salts of basic residues such as amines; alkali or organic salts of acidic residues such as carboxylic acids; and the like. The pharmaceutically acceptable salts of the present invention include the conventional non-toxic salts of the parent compound formed, for example, from nontoxic inorganic or organic acids. The pharmaceutically acceptable salts of the present 10 invention can be synthesized from the parent compound which contains a basic or acidic moiety by conventional chemical methods. Generally, such salts can be prepared by reacting the free acid or base forms of these compounds with a stoichiometric amount of the appropriate base or acid in water or in an organic solvent, or in a mixture of the two; generally, non-aqueous media like ether, ethyl acetate, alcohols (e.g., methanol, ethanol, 15 iso-propanol, or butanol) or acetonitrile (MeCN) are preferred. Lists of suitable salts are found in Remington's Pharmaceutical Sciences, 17th Ed., (Mack Publishing Company, Easton, 1985), p. 1418, Berge et al., J. Pharm. Sci., 1977, 66(1), 1-19, and in Stahl et al., Handbook of Pharmaceutical Salts: Properties, Selection, and Use, (Wiley, 2002). As used herein the terms “subject” and “patient” may be used interchangeably, 20 and means a mammal in need of treatment, e.g., companion animals (e.g., dogs, cats, and the like), farm animals (e.g., cows, pigs, horses, sheep, goats and the like) and laboratory animals (e.g., rats, mice, guinea pigs and the like). Typically, the subject or patient is a human in need of treatment. 25 Synthesis Compounds of the invention, including salts thereof, can be prepared using known organic synthesis techniques and can be synthesized according to any of numerous possible synthetic routes. The reactions for preparing compounds of the invention can be carried out in 30 suitable solvents which can be readily selected by one of skill in the art of organic synthesis. Suitable solvents can be substantially non-reactive with the starting materials 2024202700   24 Apr 2024 (reactants), the intermediates, or products at the temperatures at which the reactions are carried out, e.g., temperatures which can range from the solvent's freezing temperature to the solvent's boiling temperature. A given reaction can be carried out in one solvent or a mixture of more than one solvent. Depending on the particular reaction step, suitable 5 solvents for a particular reaction step can be selected by the skilled artisan. Preparation of compounds of the invention can involve the protection and deprotection of various chemical groups. The need for protection and deprotection, and the selection of appropriate protecting groups (“Pg”), can be readily determined by one skilled in the art. The chemistry of protecting groups (“Pg”) can be found, for example, in 10 P. G. M. Wuts and T. W. Greene, Protective Groups in Organic Synthesis, 4th Ed., Wiley & Sons, Inc., New York (2006), which is incorporated herein by reference in its entirety. Compounds of the invention can be prepared employing conventional methods that utilize readily available reagents and starting materials. The reagents used in the preparation of the intermediates of this invention can be either commercially obtained or 15 can be prepared by standard procedures described in the literature. Various technologies such as solid phase chemistry, microwave chemistry or flow chemistry etc., can also be utilized to synthesize intermediates or final compounds. Furthermore, other methods of preparing compounds of the invention will be readily apparent to person of ordinary skill in the art in light of the following reaction and schemes and examples. Unless otherwise 20 indicated all the variables are defined below. Suitable method of synthesis are described in the following references: March, Advanced Organic Chemistry, 3rd edition, John Wiley & Sons, 1985; Greene and Wuts, Protective Groups in Organic Chemistry, 2nd edition, John Wiley & Sons 1991; and Larock, Comprehensive Organic Transformations, 4th edition, VCH publishers Inc., 1989. Furthermore, in any one synthesis, one or more of the 25 reagents, intermediates or chemicals may be used in excess amount to ensure the completion of reaction. Suitable reaction temperatures generally range from about 0 °C to about the boiling point of the solvent. More typically, temperatures are sufficiently high to allow refluxing, for example, about 68 °C for tetrahydrofuran. In some cases, such as microwave conditions, the temperature of the reaction may exceed the boiling point of 30 the solvent. 2024202700   24 Apr 2024 The compounds of the invention can be synthesized by the methods described in Schemes 1-3 below. Many of the synthetic steps are well described in as in F.A. Carey, R.J. Sundberg, Advanced Organic Chemistry, 2nd ed., Plenum publication in 1983. The synthesis of various hydroxyl-substituted heterocycles is well documented in the 5 literature and can be synthesized by known literature methods. The general synthesis of useful heterocyclic rings are referenced in The Handbook of Heterocyclic Chemistry, Alan R. Katritzky; Pergamon Press, NY, USA, 1st ed. 1986. The depicted intermediates may also be available as commercial reagents from numerous vendors. Scheme 1. Fg-(Cy)m-(L)n A Ds ZE Route C Fg functional group intermediate IV R1-(Cy)m-(L)n The compounds of the invention can be synthesized by numerous methods, based on retro synthetic analysis of final targets. Examplary methods are shown in routes A, B & C. Route A: This method involves coupling of amine Intermediate I with various 15 aldehydes, amines, acids, aryl halides, and the like. The aldehydes and ketones can be condensed with Intermediate I by reductive amination. This method involves reaction of aldehydes or ketones with amine in presence of a reducing agent (e.g., sodium cyanoborohydride or triacetoxy sodium cyanoborohydride). Various alternative methods 2024202700   24 Apr 2024 for reaction of amines with aldehyde and ketones under reductive conditions are well known in the art. For example, these reactions can be performed in various protic and aprotic solvents and at temperatures from -78 °C to refluxing conditions. One method involves reaction of amines with aldehydes or ketones in solvents such as, for example, 5 methanol, ethanol, tetrahydrofuran, dichloromethane or 1,2-dichloroethane or a combination thereof in presence of a reducing agent (e.g., triacetoxy sodium borohydride or sodium cyanoborohydride) between RT and refluxing conditions in the presence or absence of microwave reactor. Route B: This method involves the coupling of Intermediate II with Intermediate 10 III. The Intermediate II (W = NH) can be synthesized, for example, from various spirocyclic amines using known synthetic procedures as described in literature and by methods known to a person skilled in the art. For example, Intermediate III can be synthesized by any of the various methods described below. The leaving group (LVG) can be any suitable group such as, for example, a halogen, mesylate, tosylate, or any 15 other groups that can be suitable for nucleophilic substitution catalyzed by base or by metal catalyzed displacement (e.g., copper, palladium, and the like). These methods are well described in Handbook of Reagents for Organic Synthesis, Catalyst Components for Coupling Reactions; Gary Molander, 1st. edition, 2013; John Wiley & sons. One method involves reaction of halo derivatives of Intermediate III with amine under protic or 20 aprotic solvents in the presence of organic or inorganic base at elevated temperature. An additional example involves treatment of chloro derivatives of Intermediate III with an amine in an aprotic solvent (e.g., DMF or DMSO) in the presence of organic base (e.g., triethylamine or pyridine) at elevated temperatures. For compounds of Intermediate II where W is carbon the reaction can can be performed, for example, by a cross coupling 25 reaction of vinyl boronates of spiroamines with Intermediate III, followed by hydrogenation to yield carbon analogs. Route C: The final compound can be synthesized from Intermediate IV by functional group modification. The functional group may be, for example, an acid, alcohol, amine, aryl halide, and the like. This reaction utilizes amines with various 30 acylating agents (e.g., acyl chloride, sulfonyl chloride, isocyanates, and the like). Alternatively, functional groups such as acid can be converted to amides. Aryl halides 2024202700   24 Apr 2024 can be converted to the desired product using conventional methods known for other functional groups and many of these functional group transformations are well known in literature and described in “Comprehensive Organic Transformations: A Guide to Functional Group Preparations” by Richard C. Larock, Edition 2, 1999, Wiley & Sons. 5 One functional group transformation involves reaction of an amine with various acylating agents (e.g., acyl chloride or sulfonyl chloride) in the presence of an aprotic solvent and base. Another example involves reaction of an amine with sulfonyl chloride in di chloromethane in the presence of an organic base (e.g., pyridine, trimethylamine, and the like). 10                                     Scheme 2. YM = OH, NH2, SH or CH2Metal Intermediate VII Route F Intermediate V Intermediate I Route D Intermediate VI Intermediate I can be synthesized by numerous methods as depicted in Scheme 2. Examplary methods are shown in routes D, E & F. 15         Route D: The method employed in route D is analogous to the method employed in route B (Scheme 1). For spirodiamines, one of the amine functionalities may be selectively protected so as to perform the reaction in a regioselective manner. The protecting groups are chosen such that they can be compatible with other functional groups and their transformations, and can be removed selectively. Various amine 2024202700   24 Apr 2024 protecting groups are well known in literature and are well documented in Greene's Protective Groups in Organic Synthesis by Peter G. M. Wuts & Theodora W. Greene; 4th Edition,; 2006, Wiley-Interscience. Commonly used amine protecting group include, for example, tert-butoxycarbonylwhich is cleaved under acidic condition in aprotic 5 solvents. One example method comprises the use of trifluoroacetic acid or hydrochloride gas in aprotic solvents (e.g., 1,4-di oxane, di chloromethane, and the like) at RT. Route E: The functional group Fg of Intermediate V can undergo various functional group transformation to prepare Intermediate I. Such transformations are well documented in the literature, for example, as in Advanced Organic Chemistry: Reactions, 10 Mechanisms, and Structure, by Jerry March, Wiley-Interscience; 6 edition 2007. An example reaction involves the cross coupling of an aryl halide (e.g., where Fg is a halogen) of Intermediate V with various boronates, tin reagents, and the like. These cross coupling reactions can be effected with various metal catalysts (e.g., copper, palladium, rhodium, and the like) in a variety of protic / aprotic solvents or combination thereof, in 15 the presence of inorganic or organic bases at temperatures varying from RT to elevated temperatures. An optional microwave reactor may also be used. An example method involves reaction of a chloro- or bromo- derivative of Intermediate V with an aryl Suzuki reagent in the presence of a palladium catalyst in various solvents (e.g., DMF, toluene / water, and the like) at elevated temperature in presence of inorganic base (e.g., 20 cesium carbonate or potassium phosphate). In certain cases further functionalization can be performed to arrive at the desired compound. For example, an Fg halo group in Intermediate V can be converted into an acid and further converted into an amide, alcohol, ether, and the like. Similarly, the Fg halo group of Intermediate V can be converted into a cyano group, which can be further converted into other functional groups 25 as is well known in the art. Route F: This method involves reactions of phenols, thiols, anilines with 3-halopyridines or 5-halo pyrimidine using metal mediated reactions. The nucelophilic displacement of 3-halopyridines or 5-halo pyrimidine by phenols, anilines and aryl thiols are well known in literature as described, for example, in Copper-Mediated Cross- 30 Coupling Reactions by Gwilherm Evano & Nicolas Blanchard by John Wiley & Sons, Edition 1, 2013. For example, Intermediate VII can be synthesized from a 3,4-di 2024202700   24 Apr 2024 halopyridine or a 4,5-dihalo pyrimidine by reaction with a spiroamine using methods similar to that described in Route B. Additionally, the carbon analog can be synthesized, for example, by cross coupling reaction of Intermediate VII with various alkyl zinc halides in the presence of metal catalyst as described in “Applied Cross-Coupling 5 Reactions” by Yasushi Nishihara Springer Science Edition 1, 2013. An example method involves reaction of benzyl zinc bromide with palladium catalyst in an aprotic solvent (e.g., diethylether or tetrahydrofuran) at elevated temperature in the presence or absence of a microwave reactor. Fluoro substituted phenols, anilines, and thiols are well known in literature and can be synthesized by various methods known to one skilled in the art. 1 o           Various methods are available for synthesis of Intermediate III containing a pyrimide-phenol ether. Some of the methods are illustrated in Scheme 3, Routes A and B Scheme 3, Route A. Y= O; U = N Y= O; U = NU = N Y= O; U = N Intermediate III Y= O; U = N LVG= leaving group Scheme 3, Route A involves reaction of a phenol with a 2-halo acetate. This 15 method is well known in literature and described, for example, in Journal of Medicinal Chemistry (1980), 23(9), 1026-31. This reaction is achieved by converting a phenol into the corresponding phenolate by reaction with a metal hydride in an aprotic solvent (e.g., DMF, THF, and the like). One example involves reaction of phenol with sodium hydride in an aprotic solvents (e.g., DMF), followed by addition of methylchloroacetate in the 20 same pot at temperature varying from -78 °C to RT. The 2-phenoxyacetate intermediate is further condensed with formaldehyde in presence of a metal hydride (e.g., NaH) in an aprotic solvent as described in the first step. This intermediate is then reacted with thiourea in a protic solvent (e.g., alcohol) under elevated temperature to yield 2- 2024202700   24 Apr 2024 thiopyrimidine intermediate. The thiopyrimidine can be reduced to pyrimidine or converted to 2-substituted pyrimidine by various synthetic routes known in the literature. An example method involves reduction of thiopyrimidine to pyrimidine under metal catalyzed hydrogenation conditions (e.g., nickel in a protic solvent such as ethanol, and 5 the like). The 4-pyrimidone intermediate can then be converted to a 4-halopyrimidone by reaction with a chlorinating solvent (e.g., thionyl chloride, phosphorousoxy trichloride, and the like) either neat or in an aprotic solvent (e.g., toluene, THF, and the like) at elevated temperature. Alternatively the 4-pyrimidone can be reacted with a sulfonyl chloride (e.g., methane sulfonyl chloride or trifluoromethane sulfonyl chloride) to 10 generate a sulfonate as a leaving group suitable for nucleophilic displacement, which can be further utilized in preparing the desired compounds as described herein in Schemes 1 and 2. Scheme 3, Route B. Y= O                               Y=O 15          The first step in Scheme 3, Route B, involves the coupling of phenol with 5- halopyrimidine as described, for example, in Organic Letters, 14(1), 170-173; 2012, or in Journal of Organic Chemistry, 75(5), 1791-1794; 2010. The resulting pyrimidine can then be oxidized with a peracid in an aprotic solvent at RT to yield a pyrimidine N-oxide. An example method involves reaction of pyrimdine ether with meta-perchloro perbenzoic 20 acid in a halogenated solvent (e.g., di chloromethane, 1,2-di chloroethane, and the like) as described in J. Org. Chem., 1985, 50 (17), pp 3073-3076. The crude intermediate can be further treated with phosphorousoxytrichloride or phosphorous pentachloride to yield Intermediate III as described in Int. Patent Appl. No., WO 2009 / 137733. 2024202700   24 Apr 2024 Methods of Use The compounds of the invention are inhibitors of the interaction of menin with MLL and MLL fusion proteins. In some embodiments, the present invention is directed 5 to a method of inhibiting the interaction between menin and MLL or an MLL fusion protein by contacting menin and MLL or the MLL fusion protein with a compound of the invention. The contacting can be carried out in vitro or in vivo. In some embodiments, the compounds of the invention can bind to menin, thereby interfering with the binding of MLL to menin. In some embodiments, the present invention provides a method of 10 inhibiting the activity of menin by contacting menin with a compound of the invention in the presence of MLL or an MLL fusion protein. In further embodiments, the present invention provides a method of inhibiting the binding of MLL or an MLL fusion protein to menin, comprising contacting menin with a compound of the invention in the presence of the MLL or MLL fusion protein. 15          The compounds of the invention are also useful in treating diseases associated with the menin-MLL interaction or menin-MLL fusion protein interaction. For example, diseases and conditions treatable according to the methods of the invention include cancer, such as leukemia, and other diseases or disorders mediated by the menin-MLL interaction or menin-MLL fusion protein interaction such as diabetes. 20          Accordingly, the compounds of the invention are believed to be effective against a broad range of cancers, including, but not limited to, hematological cancer (e.g., leukemia and lymphoma), bladder cancer, brain cancer (e.g., glioma, diffuse intrinsic pontine glioma (DIPG)), breast cancer (e.g., triple-negative breast cancer, estrogen-receptor-positive breast cancer (i.e., ER+ breast cancer)), colorectal cancer, cervical 25 cancer, gastrointestinal cancer (e.g., colorectal carcinoma, gastric cancer), genitourinary cancer, head and neck cancer, liver cancer, lung cancer, melanoma, ovarian cancer, pancreatic cancer, prostate cancer (e.g., castration resistant prostate cancer), renal cancer (e.g., renal cell carcinoma), skin cancer, thyroid cancer (e.g., papillary thyroid carcinoma), testicular cancer, sarcoma (e.g., Ewing’s sarcoma), and AIDS-related 30 cancers. In some embodiments, the cancer is associated with a rearranged MLL gene. In 2024202700   24 Apr 2024 some embodiments, the pathophysiology of the cancer is dependent on the MLL gene. In some embodiments, the cancer is associated with mutant p53 gain-of-function. In some embodiments, the specific cancers that may be treated by the compounds, compositions and methods described herein include cardiac cancers, such as for example, 5 sarcoma (e.g., angiosarcoma, fibrosarcoma, rhabdomyosarcoma, and liposarcoma), myxoma, rhabdomyoma, fibroma, lipoma and teratoma; lung cancers, including, for example, bronchogenic carcinoma (e.g., squamous cell, undifferentiated small cell, undifferentiated large cell, and adenocarcinoma), alveolar and bronchiolar carcinoma, bronchial adenoma, sarcoma, lymphoma, chondromatous hamartoma, mesothelioma, 10 non-small cell lung cancer, small cell lung cancer, bronchial adenomas / carcinoids, and pleuropulmonary blastoma; gastrointestinal cancer, including, for example, cancers of the esophagus (e.g., squamous cell carcinoma, adenocarcinoma, leiomyosarcoma, and lymphoma), cancers of the stomach (e.g., carcinoma, lymphoma, and leiomyosarcoma), cancers of the pancreas (e.g., ductal adenocarcinoma, insulinoma, glucagonoma, 15 gastrinoma, carcinoid tumors, and vipoma), cancers of the small bowel (e.g., adenocarcinoma, lymphoma, carcinoid tumors, Kaposi's sarcoma, leiomyoma, hemangioma, lipoma, neurofibroma, and fibroma), cancers of the large bowel or colon, (e.g., adenocarcinoma, tubular adenoma, villous adenoma, hamartoma, and leiomyoma), and other cancers of the digestive tract (e.g., anal cancer, anorectal cancer, appendix 20 cancer, cancer of the anal canal, cancer of the tongue, gallbladder cancer, gastrointestinal stromal tumor (GIST), colon cancer, colorectal cancer, extrahepatic bile duct cancer, intrahepatic bile duct cancer, rectal cancer, and small intestine cancer); genitourinary tract cancers, including, for example, cancers of the kidney (e.g., adenocarcinoma, Wilm's tumor (nephroblastoma), lymphoma, and leukemia), cancers of the bladder and 25 urethra (e.g., squamous cell carcinoma, transitional cell carcinoma, and adenocarcinoma), cancers of the prostate (e.g., adenocarcinoma and sarcoma), cancers of the testis, (e.g., seminoma, teratoma, embryonal carcinoma, teratocarcinoma, choriocarcinoma, sarcoma, interstitial cell carcinoma, fibroma, fibroadenoma, adenomatoid tumors, and lipoma), as well as transitional cell cancer, transitional cell cancer of the renal pelvis and ureter and 30 other urinary organs, urethral cancer, and urinary bladder cancer; liver cancers, including, for example, hepatoma (e.g., hepatocellular carcinoma), cholangiocarcinoma, 2024202700   24 Apr 2024 hepatoblastoma, angiosarcoma, hepatocellular adenoma, and hemangioma; bone cancers, including, for example, osteogenic sarcoma (osteosarcoma), fibrosarcoma, malignant fibrous histiocytoma, chondrosarcoma, Ewing's sarcoma, malignant lymphoma (reticulum cell sarcoma), multiple myeloma, malignant giant cell tumor chordoma, 5 osteochrondroma (osteocartilaginous exostoses), benign chondroma, chondroblastoma, chondromyxofibroma, osteoid osteoma and giant cell tumors; nervous system cancers, including, for example, cancers of the skull (e.g., osteoma, hemangioma, granuloma, xanthoma, and osteitis deformans); cancers of the meninges (e.g., meningioma, meningiosarcoma, and gliomatosis); cancers of the brain (e.g., astrocytoma, 10 medulloblastoma, glioma, ependymoma, germinoma (pinealoma), glioblastoma multiforme, oligodendroglioma, schwannoma, retinoblastoma, and congenital tumors); cancers of the spinal cord (e.g., neurofibroma, meningioma, glioma, and sarcoma), and other nervous system cancers (e.g., brain stem glioma, diffuse intrinsic pontine glioma (DIPG), brain tumor, central nervous system cancer, cerebellar astrocytoma, cerebral 15 astrocytoma / malignant glioma, childhood cerebellar astrocytoma, childhood cerebral astrocytoma, primary central nervous system lymphoma, visual pathway and hypothalamic glioma, nervous system lymphoma, supratentorial primitive neuroectodeimal tumors, pineoblastoma and supratentorial primitive neuroectodermal tumors); gynecological cancers, including, for example, cancers of the uterus (e.g., 20 endometrial carcinoma), cancers of the cervix (e.g., cervical carcinoma, and pre tumor cervical dysplasia), cancers of the ovaries (e.g., ovarian carcinoma, including serous cystadenocarcinoma, mucinous cystadenocarcinoma, unclassified carcinoma, granulosa thecal cell tumors, Sertoli Leydig cell tumors, dysgerminoma, and malignant teratoma), cancers of the vulva (e.g., squamous cell carcinoma, intraepithelial carcinoma, 25 adenocarcinoma, fibrosarcoma, and melanoma), cancers of the vagina (e.g., clear cell carcinoma, squamous cell carcinoma, botryoid sarcoma, and embryonal rhabdomyosarcoma), and cancers of the fallopian tubes (e.g., carcinoma); other reproductive tract cancers, including, for example, endometrial cancer, endometrial uterine cancer, germ cell tumor, gestational trophoblastic tumor, gestational trophoblastic 30 tumor glioma, ovarian epithelial cancer, ovarian germ cell tumor, ovarian low malignant potential tumor, penile cancer, vaginal cancer, vulvar cancer, extracranial germ cell 2024202700   24 Apr 2024 tumor, extragonadal germ cell tumor, uterine cancer, uterine corpus cancer, uterine sarcoma; lymphatic and hematologic cancers, including, for example, cancers of the blood (e.g., acute myeloid leukemia (AML), chronic myeloid leukemia (CML), acute lymphoblastic leukemia (ALL), chronic lymphoblastic leukemia, chronic lymphocytic 5 leukemia, myeloproliferative diseases, multiple myeloma, and myelodysplastic syndrome, Hodgkin's lymphoma, non Hodgkin's lymphoma (malignant lymphoma) and Waldenstrom's macroglobulinemia), and other lymphatic or hematologic cancers including, for example, childhood leukemia, myeloproliferative disorders (e.g., primary myelofibrosis), plasma cell neoplasm / multiple myeloma, myelodysplasia, 10 myelodysplastic syndrome, cutaneous T-cell lymphoma, lymphoid neoplasm, AIDS-related lymphoma, thymoma, thymoma and thymic carcinoma, mycosis fungoides, and Sezary Syndrome; skin cancers, including, for example, malignant melanoma, basal cell carcinoma, squamous cell carcinoma, Kaposi's sarcoma, moles dysplastic nevi, lipoma, angioma, dermatofibroma, keloids, psoriasis, merkel cell carcinoma, merkel cell skin 15 carcinoma, melanoma, and carcinoid tumor; adrenal gland cancers, including, for example, neuroblastoma; other cancers associated with the endocrine system including, for example, adrenocortical carcinoma, multiple endocrine neoplasia (e.g., multiple endocrine neoplasia type I), multiple endocrine neoplasia syndrome, parathyroid cancer, pituitary tumor, pheochromocytoma, islet cell pancreatic cancer, and islet cell tumors); 20 connective tissue cancer (e.g., bone cancer, bone and joint cancer, osteosarcoma and malignant fibrous histiocytoma); cancer associated with the head, neck, and mouth (e.g., head and neck cancer, paranasal sinus and nasal cavity cancer, metastatic squamous neck cancer, mouth cancer, throat cancer, esophageal cancer, laryngeal cancer, pharyngeal cancer, hypopharyngeal cancer, lip and oral cavity cancer, nasopharyngeal cancer, oral 25 cancer, oropharyngeal cancer, and salivary gland cancer); and cancer associated with the eye (e.g., ocular cancer, intraocular melanoma). In some embodiments, the cancer is Ewing’s sarcoma. In some embodiments, the cancer is a hematological cancer such as leukemia or lymphoma. Example leukemia and lymphomas treatable by the compounds of the 30 invention include mixed lineage leukemia (MLL), MLL-related leukemia, MLL-associated leukemia, MLL-positive leukemia, MLL-induced leukemia, rearranged mixed 2024202700   24 Apr 2024 lineage leukemia (MLL-r), leukemia associated with a MLL rearrangement or a rearrangement of the MLL gene, acute leukemia, chronic leukemia, indolent leukemia, lymphoblastic leukemia, lymphocytic leukemia, myeloid leukemia, myelogenous leukemia, childhood leukemia, acute lymphocytic leukemia (ALL) (also referred to as 5 acute lymphoblastic leukemia or acute lymphoid leukemia), acute myeloid leukemia (AML) (also referred to as acute myelogenous leukemia or acute myeloblastic leukemia), acute granulocytic leukemia, acute nonlymphocytic leukemia, chronic lymphocytic leukemia (CLL) (also referred to as chronic lymphoblastic leukemia), chronic myelogenous leukemia (CML) (also referred to as chronic myeloid leukemia), therapy 10 related leukemia, myelodysplastic syndrome (MDS), myeloproliferative disease (MPD) (such as primary myelofibrosis (PMF)), myeloproliferative neoplasia (MPN), plasma cell neoplasm, multiple myeloma, myelodysplasia, cutaneous T-cell lymphoma, lymphoid neoplasm, AIDS-related lymphoma, thymoma, thymic carcinoma, mycosis fungoides, Alibert-Bazin syndrome, granuloma fungoides, Sezary Syndrome, hairy cell leukemia, T- 15 cell prolymphocytic leukemia (T-PLL), large granular lymphocytic leukemia, meningeal leukemia, leukemic leptomeningitis, leukemic meningitis, multiple myeloma, Hodgkin's lymphoma, non Hodgkin's lymphoma (malignant lymphoma), and Waldenstrom's macroglobulinemia. In some embodiments, the acute myeloid leukemia (AML) is abstract nucleophosmin (NPMl)-mutated acute myeloid leukemia (i.e., NPMlmut acute 20 myloid leukemia). In particular embodiments, compounds of the invention are used to treat leukemia associated with a MLL rearrangement, acute lymphocytic leukemia associated with a MLL rearrangement, acute lymphoblastic leukemia associated with a MLL rearrangement, acute lymphoid leukemia associated with a MLL rearrangement, acute 25 myeloid leukemia associated with a MLL rearrangement, acute myelogenous leukemia associated with a MLL rearrangement, or acute myeloblastic leukemia associated with a MLL rearrangement. As used herein, “MLL rearrangement” means a rearrangement of the MLL gene. In some embodiments, diseases and conditions treatable with compounds of the 30 invention include insulin resistance, pre-diabetes, diabetes (e.g., Type 2 diabetes or Type 1 diabetes), and risk of diabetes. In some embodiments, diseases and conditions treatable 2024202700   24 Apr 2024 with compounds of the invention include hyperglycemia. In some embodiments, the hyperglycemia is associated with diabetes, such as Type 2 diabetes. In some embodiments, compounds of the invention are used to treat loss of response to other antidiabetic agents and / or reduced beta cell function in a patient or subject. In some 5 embodiments, compounds of the invention are used to restore response to other antidiabetic agents and / or to restore beta cell function and / or to reduce the need for insulin in a patient or subject. In some embodiments, compounds of the invention are used to reduce insulin resistance, reduce the risk of diabetes, or reduce increases in blood glucose caused by a statin in a subject taking a statin. In some embodiments, compounds of the 1 o invention are used to treat diabetes in a subject taking a statin or to prevent diabetes in a subject taking a statin. Methods of the invention include decreasing, reducing, inhibiting, suppressing, limiting or controlling in the patient elevated blood glucose levels. In further aspects, methods of the invention include increasing, stimulating, enhancing, promoting, inducing or activating in the subject insulin sensitivity. Statins include, but 15 are not limited to atorvastatin, cerivastatin, fluvastatin, lovastatin, mevastatin, pitavastatin, pravastatin, rousuvastatin and simvastatin. In some embodiments, a patient is treated with (e.g., administered) a compound of the present invention in an amount sufficient to treat or ameliorate one or more of the diseases and conditions recited above (e.g., a therapauetically effective amount). The 20 compounds of the invention may also be useful in the prevention of one or more of the diseases recited therein. Combination Therapy The invention further relates to a combination therapy for treating a disease or a 25 disorder described herein. In some embodiments, the combination therapy comprises administering at least one compound of the present invention in combination with one or more other pharmaceutically active agents for treating cancer or other disorders mediated by menin / MLL. In some embodiments, the combination therapy comprises administering at least one compound of the present invention in combination with one or more other 30 pharmaceutically active agents, such as for the treatment of cancer. The pharmaceutically active agents can be combined with a compound of the invention in a single dosage form, 2024202700   24 Apr 2024 or the therapeutics can be administered simultaneously or sequentially as separate dosage forms. The compounds according to the invention may also be used in combination with immunotherapies, including but not limited to cell-based therapies, antibody therapies 5 and cytokine therapies, for the treatment of a disease or disorder disclosed herein. In certain embodiments, compounds according to the invention are used in combination with one or more passive immunotherapies, including but not limited to naked monoclonal antibody drugs and conjugated monoclonal antibody drugs. Examples of naked monoclonal antibody drugs that can be used include, but are not limited to 10 rituximab (Rituxan®), an antibody against the CD20 antigen; trastuzumab (Herceptin®), an antibody against the HER2 protein; alemtuzumab (Lemtrada®, Campath®), an antibody against the CD52 antigen; cetuximab (Erbitux®), an antibody against the EGFR protein; and bevacizumab (Avastin®) which is an anti-angiogenesis inhibitor of VEGF protein. 15          Examples of conjugated monoclonal antibodies that can be used include, but are not limited to, radiolabeled antibody ibritumomab tiuxetan (Zevalin®); radiolabeled antibody tositumomab (Bexxar®); and immunotoxin gemtuzumab ozogamicin (Mylotarg®) which contains calicheamicin; BL22, an anti-CD22 monoclonal antibody-immunotoxin conjugate; radiolabeled antibodies such as OncoScint® and ProstaScint®; 20 brentuximab vedotin (Adcetris®); ado-trastuzumab emtansine (Kadcyla®, also called TDM-1). Further examples of therapeutic antibodies that can be used include, but are not limited to, REOPRO® (abciximab), an antibody against the glycoprotein Ilb / IIIa receptor on platelets; ZENAPAX® (daclizumab) an immunosuppressive, humanized anti-CD25 25 monoclonal antibody; PANOREX™, a murine anti-17-IA cell surface antigen IgG2a antibody; BEC2, a murine anti-idiotype (GD3 epitope) IgG antibody; IMC-C225, a chimeric anti-EGFR IgG antibody; VITAXIN™ a humanized anti-aVp3 integrin antibody; Campath 1H / LDP-03, a humanized anti CD52 IgGl antibody; Smart M195, a humanized anti-CD33 IgG antibody; LYMPHOCIDE™, a humanized anti-CD22 IgG 30 antibody; LYMPHOCIDE™ Y-90; Lymphoscan; Nuvion® (against CD3; CM3, a humanized anti-ICAM3 antibody; IDEC-114 aprimatized anti-CD80 antibody; IDEC- 2024202700   24 Apr 2024 131a humanized anti-CD40L antibody; IDEC-151 a primatized anti-CD4 antibody; IDEC-152 a primatized anti-CD23 antibody; SMART anti-CD3, a humanized anti-CD3 IgG; 5G1.1, a humanized anti-complement factor 5 (C5) antibody; D2E7, a humanized anti-TNF-a antibody; CDP870, a humanized anti-TNF-a Fab fragment; IDEC-151, a 5 primatized anti-CD4 IgGl antibody; MDX-CD4, a human anti-CD4 IgG antibody; CD20-streptdavidin (+biotin-yttrium 90); CDP571, a humanized anti-TNF-a IgG4 antibody; LDP-02, a humanized anti-a4p7 antibody; OrthoClone OKT4A, a humanized anti-CD4 IgG antibody; ANTOVA™, a humanized anti-CD40L IgG antibody; ANTEGREN™, a humanized anti-VLA-4 IgG antibody; and CAT-152, a human anti- 10 TGF-P2 antibody. In certain embodiments, compounds according to the invention are used in combination with one or more targeted immunotherapies containing toxins but not an antibody, including but not limited to denileukin diftitox (Ontak®), IL-2 linked to diphtheria toxin. 15          The compounds according to the invention may also be used in combination with adjuvant immunotherapies for the treatment of a disease or disorder disclosed herein. Such adjuvant immunotherapies include, but are not limited to, cytokines, such as granulocyte-macrophage colony-stimulating factor (GM-CSF), granulocyte-colony stimulating factor (G-CSF), macrophage inflammatory protein (MIP)-l-alpha, 20 interleukins (including IL-1, IL-2, IL-4, IL-6, IL-7, IL-12, IL-15, IL-18, IL-21, and IL-27), tumor necrosis factors (including TNF-alpha), and interferons (including IFN-alpha, IFN-beta, and IFN-gamma); aluminum hydroxide (alum); Bacille Calmette-Guerin (BCG); Keyhole limpet hemocyanin (KLH); Incomplete Freund's adjuvant (IFA); QS-21; DETOX; Levamisole; and Dinitrophenyl (DNP), and combinations thereof, such as, for 25 example, combinations of interleukins, for example IL-2, with other cytokines, such as IFN-alpha. In certain embodiments, compounds according to the invention are used in combination with vaccine therapy, including but not limited to autologous and allogeneic tumor cell vaccines, antigen vaccines (including polyvalent antigen vaccines), dendritic 30 cell vaccines, and viral vaccines. 2024202700   24 Apr 2024 In another embodiment, the present disclosure comprises administering to a subject with cancer an effective amount of a compound of the invention and one or more additional anti-cancer therapies selected from: surgery, anti-cancer agents / drugs, biological therapy, radiation therapy, anti-angiogenesis therapy, immunotherapy, 5 adoptive transfer of effector cells, gene therapy or hormonal therapy. Examples of anticancer agents / drugs are described below. In some embodiments, the anti-cancer agents / drug is, for example, adriamycin, aactinomycin, bleomycin, vinblastine, cisplatin, acivicin; aclarubicin; acodazole hydrochloride; acronine; adozelesin; aldesleukin; altretamine; ambomycin; ametantrone 1 o acetate; aminoglutethimide; amsacrine; anastrozole; anthramycin; asparaginase; asperlin; azacitidine; azetepa; azotomycin; batimastat; benzodepa; bicalutamide; bisantrene hydrochloride; bisnafide dimesylate; bizelesin; bleomycin sulfate; brequinar sodium; bropirimine; busulfan; cactinomycin; calusterone; caracemide; carbetimer; carboplatin; carmustine; carubicin hydrochloride; carzelesin; cedefingol; chlorambucil; cirolemycin; 15 cladribine; crisnatol mesylate; cyclophosphamide; cytarabine; dacarbazine; daunorubicin hydrochloride; decitabine; dexormaplatin; dezaguanine; dezaguanine mesylate; diaziquone; doxorubicin; doxorubicin hydrochloride; droloxifene; droloxifene citrate; dromostanolone propionate; duazomycin; edatrexate; eflornithine hydrochloride; elsamitrucin; enloplatin; enpromate; epipropidine; epirubicin hydrochloride; erbulozole; 20 esorubicin hydrochloride; estramustine; estramustine phosphate sodium; etanidazole; etoposide; etoposide phosphate; etoprine; fadrozole hydrochloride; fazarabine; fenretinide; floxuridine; fludarabine phosphate; fluorouracil; flurocitabine; fosquidone; fostriecin sodium; gemcitabine; gemcitabine hydrochloride; hydroxyurea; idarubicin hydrochloride; ifosfamide; ilmofosine; iproplatin; irinotecan hydrochloride; lanreotide 25 acetate; letrozole; leuprolide acetate; liarozole hydrochloride; lometrexol sodium; lomustine; losoxantrone hydrochloride; masoprocol; maytansine; mechlorethamine hydrochloride; megestrol acetate; melengestrol acetate; melphalan; menogaril; mercaptopurine; methotrexate; methotrexate sodium; metoprine; meturedepa; mitindomide; mitocarcin; mitocromin; mitogillin; mitomalcin; mitomycin; mitosper; 30 mitotane; mitoxantrone hydrochloride; mycophenolic acid; nocodazole; nogalamycin; ormaplatin; oxisuran; pegaspargase; peliomycin; pentamustine; peplomycin sulfate; 2024202700   24 Apr 2024 perfosfamide; pipobroman; piposulfan; piroxantrone hydrochloride; plicamycin; plomestane; porfimer sodium; porfiromycin; prednimustine; procarbazine hydrochloride; puromycin; puromycin hydrochloride; pyrazofurin; riboprine; rogletimide; safingol; safingol hydrochloride; semustine; simtrazene; sparfosate sodium; sparsomycin; 5 spirogermanium hydrochloride; spiromustine; spiroplatin; streptonigrin; streptozocin; sulofenur; talisomycin; tecogalan sodium; tegafur; teloxantrone hydrochloride; temoporfin; teniposide; teroxirone; testolactone; thiamiprine; thioguanine; thiotepa; tiazofurin; tirapazamine; toremifene citrate; trestolone acetate; triciribine phosphate; trimetrexate; trimetrexate glucuronate; triptorelin; tubulozole hydrochloride; uracil 10 mustard; uredepa; vapreotide; verteporfin; vinblastine sulfate; vincristine sulfate; vindesine; vindesine sulfate; vinepidine sulfate; vinglycinate sulfate; vinleurosine sulfate; vinorelbine tartrate; vinrosidine sulfate; vinzolidine sulfate; vorozole; zeniplatin; zinostatin; zorubicin hydrochloride; palbociclib; Yervoy® (ipilimumab); Mekinist™ (trametinib); peginterferon alfa-2b, recombinant interferon alfa-2b; Sylatron™ 15 (peginterferon alfa-2b); Tafinlar® (dabrafenib); Zelboraf® (vemurafenib); or nivolumab. The compounds according to the present invention can be administered in combination with existing methods of treating cancers, for example by chemotherapy, irradiation, or surgery. Thus, there is further provided a method of treating cancer comprising administering an effective amount of a compound of the invention, or a 20 pharmaceutically acceptable salt form thereof, to a subject in need of such treatment, wherein an effective amount of at least one additional cancer chemotherapeutic agent is administered to the subject. Examples of suitable cancer chemotherapeutic agents include any of: abarelix, ado-trastuzumab emtansine, aldesleukin, alemtuzumab, alitretinoin, allopurinol, altretamine, anastrozole, arsenic trioxide, asparaginase, azacitidine, 25 bevacizumab, bexarotene, bleomycin, bortezombi, bortezomib, busulfan intravenous, busulfan oral, calusterone, capecitabine, carboplatin, carmustine, cetuximab, chlorambucil, cisplatin, cladribine, clofarabine, cyclophosphamide, cytarabine, dacarbazine, dactinomycin, dalteparin sodium, dasatinib, daunorubicin, decitabine, denileukin, denileukin diftitox, dexrazoxane, docetaxel, doxorubicin, dromostanolone 30 propionate, eculizumab, emtansine, epirubicin, eribulin, erlotinib, estramustine, etoposide phosphate, etoposide, everolimus, exemestane, fentanyl citrate, filgrastim, floxuridine, 2024202700   24 Apr 2024 fludarabine, fluorouracil, fruquintinib, fulvestrant, gefitinib, gemcitabine, gemtuzumab ozogamicin, goserelin acetate, histrelin acetate, ibritumomab tiuxetan, idarubicin, ifosfamide, imatinib mesylate, interferon alfa 2a, irinotecan, ixabepilone, lapatinib ditosylate, lenalidomide, letrozole, leucovorin, leuprolide acetate, levamisole, lomustine, 5 meclorethamine, megestrol acetate, melphalan, mercaptopurine, methotrexate, methoxsalen, mitomycin C, mitotane, mitoxantrone, nandrolone phenpropionate, nelarabine, nofetumomab, oxaliplatin, paclitaxel, paclitaxel albumin-stabilized nanoparticle formulation, pamidronate, panitumumab, pegaspargase, pegfilgrastim, pemetrexed disodium, pentostatin, pertuzuma, pipobroman, plicamycin, procarbazine, 10 quinacrine, rasburicase, rituximab, sorafenib, streptozocin, sulfatinib, sunitinib, sunitinib maleate, tamoxifen, temozolomide, teniposide, testolactone, thalidomide, thioguanine, thiotepa, topotecan, toremifene, tositumomab, trastuzumab, tretinoin, uracil mustard, valrubicin, vinblastine, vincristine, vinorelbine, volitinib, vorinostat, and zoledronate. In particular embodiments, compounds according to the invention are used in 15 combination with one or more anti-cancer agent selected from methotrexate, paclitaxel albumin-stabilized nanoparticle formulation, ado-trastuzumab emtansine, eribulin, doxorubicin, fluorouracil, everolimus, anastrozole, pamidronate disodium, exemestane, capecitabine, cyclophosphamide, docetaxel, epirubicin, toremifene, fulvestrant, letrozole, gemcitabine, gemcitabine hydrochloride, goserelin acetate, trastuzumab, ixabepilone, 20 lapatinib ditosylate, megestrol acetate, tamoxifen citrate, pamidronate disodium, palbociclib, and pertuzumab for the treatment of breast cancer. Other anti-cancer agents / drugs include, but are not limited to: 20-epi-l,25 dihydroxyvitamin D3; 5-ethynyluracil; abiraterone; aclarubicin; acylfulvene; adecypenol; adozelesin; aldesleukin; ALL-TK antagonists; altretamine; ambamustine; amidox; 25 amifostine; aminolevulinic acid; amrubicin; amsacrine; anagrelide; andrographolide; angiogenesis inhibitors; antagonist D; antagonist G; antarelix; anti-dorsalizing morphogenetic protein-1; antiandrogen; antiestrogen; antineoplaston; antisense oligonucleotides; aphidicolin glycinate; apoptosis gene modulators; apoptosis regulators; apurinic acid; ara-CDP-DL-PTBA; arginine deaminase; asulacrine; atamestane; 30 atrimustine; axinastatin 1; axinastatin 2; axinastatin 3; azasetron; azatoxin; azatyrosine; baccatin III derivatives; balanol; batimastat; BCR / ABL antagonists; benzochlorins; 2024202700   24 Apr 2024 benzoylstaurosporine; beta lactam derivatives; beta-alethine; betaclamycin B; betulinic acid; bFGF inhibitor; bicalutamide; bisantrene; bisaziridinylspermine; bisnafide; bistratene A; bizelesin; breflate; bropirimine; budotitane; buthionine sulfoximine; calcipotriol; calphostin C; camptothecin derivatives; canarypox IL-2; capecitabine; 5 carboxamide-amino-triazole; carboxyamidotriazole; CaRestM3; CARN 700; cartilage derived inhibitor; carzelesin; casein kinase inhibitors; castanospermine; cecropin B; cetrorelix; chlorins; chloroquinoxaline sulfonamide; cicaprost; cis-porphyrin; cladribine; clomifene analogues; clotrimazole; collismycin A; collismycin B; combretastatin A4; combretastatin analogue; conagenin; crambescidin 816; crisnatol; cryptophycin 8; 10 cryptophycin A derivatives; curacin A; cyclin-dependent kinase inhibitors; cyclopentanthraquinones; cycloplatam; cypemycin; cytarabine ocfosfate; cytolytic factor; cytostatin; dacliximab; decitabine; dehydrodidemnin B; deslorelin; dexamethasone; dexifosfamide; dexrazoxane; dexverapamil; diaziquone; didemnin B; didox; diethylnorspermine; dihydro-5-azacytidine; 9- dioxamycin; diphenyl spiromustine; 15 docosanol; dolasetron; doxifluridine; droloxifene; dronabinol; duocarmycin SA; ebselen; ecomustine; edelfosine; edrecolomab; eflomithine; elemene; emitefur; epirubicin; epristeride; estramustine analogue; estrogen agonists; estrogen antagonists; etanidazole; etoposide phosphate;fadrozole; fazarabine; fenretinide; filgrastim; finasteride; flavopiridol; flezelastine; fluasterone; fludarabine; fluorodaunorunicin hydrochloride; 20 forfenimex; formestane; fostriecin; fotemustine; gadolinium texaphyrin; gallium nitrate; galocitabine; ganirelix; gelatinase inhibitors; gemcitabine; glutathione inhibitors; hepsulfam; heregulin; hexamethylene bisacetamide; hypericin; ibandronic acid; idarubicin; idoxifene; idramantone; ilmofosine; ilomastat; imidazoacridones; imiquimod; immunostimulant peptides; insulin-like growth factor-1 receptor inhibitor; iobenguane; 25 iododoxorubicin; ipomeanol, 4-; iroplact; irsogladine; isobengazole; isohomohalicondrin B; itasetron; jasplakinolide; kahalalide F; lamellarin-N triacetate; lanreotide; leinamycin; lenograstim; lentinan sulfate; leptolstatin; letrozole; leukemia inhibiting factor; leuprolide+estrogen+progesterone; leuprorelin; levamisole; liarozole; linear polyamine analogue; lipophilic disaccharide peptide; lipophilic platinum compounds; lissoclinamide 30   7; lobaplatin; lombricine; lometrexol; lonidamine; losoxantrone; lovastatin; loxoribine; lurtotecan; lutetium texaphyrin; lysofylline; lytic peptides; maitansine; mannostatin A; 2024202700   24 Apr 2024 marimastat; masoprocol; maspin; matrilysin inhibitors; matrix metalloproteinase inhibitors; menogaril; merbarone; meterelin; methioninase; metoclopramide; MIF inhibitor; mifepristone; miltefosine; mirimostim; mismatched double stranded RNA; mitoguazone; mitolactol; mitomycin analogues; mitonafide; mitotoxin fibroblast growth 5 factor-saporin; mitoxantrone; mofarotene; molgramostim; monoclonal antibody, human chorionic gonadotrophin; monophosphoryl lipid A+myobacterium cell wall sk; mopidamol; multiple drug resistance gene inhibitor; multiple tumor suppressor 1-based therapy; mustard anticancer agent; mycaperoxide B; mycobacterial cell wall extract; myriaporone; N-acetyldinaline; N-substituted benzamides; nafarelin; nagrestip; 10 naloxone+pentazocine; napavin; naphterpin; nartograstim; nedaplatin; nemorubicin; neridronic acid; neutral endopeptidase; nilutamide; nisamycin; nitric oxide modulators; nitroxide antioxidant; nitrullyn; O6-benzylguanine; octreotide; okicenone; oligonucleotides; onapristone; ondansetron; ondansetron; oracin; oral cytokine inducer; ormaplatin; osaterone; oxaliplatin; oxaunomycin; palauamine; palmitoylrhizoxin; 15 pamidronic acid; panaxytriol; panomifene; parabactin; pazelliptine; pegaspargase; peldesine; pentosan polysulfate sodium; pentostatin; pentrozole; perflubron; perfosfamide; perillyl alcohol; phenazinomycin; phenyl acetate; phosphatase inhibitors; picibanil; pilocarpine hydrochloride; pirarubicin; piritrexim; placetin A; placetin B; plasminogen activator inhibitor; platinum complex; platinum compounds; platinum-20 triamine complex; porfimer sodium; porfiromycin; prednisone; propyl bis-acridone; prostaglandin J2; proteasome inhibitors; protein A-based immune modulator; protein kinase C inhibitors; microalgal; protein tyrosine phosphatase inhibitors; purine nucleoside phosphorylase inhibitors; purpurins; pyrazoloacridine; pyridoxylated hemoglobin polyoxyethylene conjugate; raf antagonists; raltitrexed; ramosetron; ras 25 famesyl protein transferase inhibitors; ras inhibitors; ras-GAP inhibitor; retelliptine demethylated; rhenium Re 186 etidronate; rhizoxin; ribozymes; RII retinamide; rogletimide; rohitukine; romurtide; roquinimex; rubiginone Bl; ruboxyl; safingol; saintopin; SarCNU; sarcophytol A; sargramostim; Sdi 1 mimetics; semustine; senescence derived inhibitor 1; sense oligonucleotides; signal transduction inhibitors; signal 30 transduction modulators; single chain antigen-binding protein; sizofiran; sobuzoxane; sodium borocaptate; sodium phenylacetate; solverol; somatomedin binding protein; 2024202700   24 Apr 2024 sonermin; sparfosic acid; spicamycin D; spiromustine; splenopentin; spongistatin 1; squalamine; stem cell inhibitor; stem-cell division inhibitors; stipiamide; stromelysin inhibitors; sulfinosine; superactive vasoactive intestinal peptide antagonist; suradista; suramin; swainsonine; synthetic glycosaminoglycans; tallimustine; tamoxifen 5 methiodide; tauromustine; tazarotene; tecogalan sodium; tegafur; tellurapyrylium; telomerase inhibitors; temoporfm; temozolomide; teniposide; tetrachlorodecaoxide; tetrazomine; thaliblastine; thiocoraline; thrombopoietin; thrombopoietin mimetic; thymalfasin; thymopoietin receptor agonist; thymotrinan; thyroid stimulating hormone; tin ethyl etiopurpurin; tirapazamine; titanocene bichloride; topsentin; toremifene; 10 totipotent stem cell factor; translation inhibitors; tretinoin; tri acetyluridine; triciribine; trimetrexate; triptorelin; tropisetron; turosteride; tyrosine kinase inhibitors; tyrphostins; UBC inhibitors; ubenimex; urogenital sinus-derived growth inhibitory factor; urokinase receptor antagonists; vapreotide; variolin B; vector system, erythrocyte gene therapy; velaresol; veramine; verdins; verteporfin; vinorelbine; vinxaltine; vitaxin; zanoterone; 15 zilascorb; zinostatin stimalamer; 5-fluorouracil; and leucovorin. In some embodiments, the anti-cancer agent / drug is an agent that stabilizes microtubules. As used herein, a "microtubulin stabilizer" means an anti-cancer agent / drug which acts by arresting cells in the G2-M phases due to stabilization of microtubules. Examples of microtubulin stabilizers include ACLITAXEL® and Taxol® analogues. 20 Additional examples of microtubulin stabilizers include without limitation the following marketed drugs and drugs in development: Discodermolide (also known as NVP-XX-A-296); Epothilones (such as Epothilone A, Epothilone B, Epothilone C (also known as desoxyepothilone A or dEpoA); Epothilone D (also referred to as KOS-862, dEpoB, and desoxyepothilone B); Epothilone E; Epothilone F; Epothilone B N-oxide; Epothilone A 25 N-oxide; 16-aza-epothilone B; 21-aminoepothilone B (also known as BMS-310705); 21-hydroxyepothilone D (also known as Desoxyepothilone F and dEpoF), 26-fluoroepothilone); FR-182877 (Fujisawa, also known as WS-9885B), BSF-223651 (BASF, also known as ILX-651 and LU-223651); AC-7739 (Ajinomoto, also known as AVE-8063A and CS-39.HC1); AC-7700 (Ajinomoto, also known as AVE-8062, 30   AVE-8062A, CS-39-L-Ser.HCl, and RPR-258062A); Fijianolide B; Laulimalide; 2024202700   24 Apr 2024 Caribaeoside; Caribaeolin; Taccalonolide; Eleutherobin; Sarcodictyin; Laulimalide; Dictyostatin-1; Jatrophane esters; and analogs and derivatives thereof. In another embodiment, the anti-cancer agent / drug is an agent that inhibits microtubules. As used herein, a "microtubulin inhibitor" means an anti-cancer agent 5 which acts by inhibiting tubulin polymerization or microtubule assembly. Examples of microtubulin inhibitors include without limitation the following marketed drugs and drugs in development: Erbulozole (also known as R-55104); Dolastatin 10 (also known as DLS-10 and NSC-376128); Mivobulin isethionate (also known as CI-980); Vincristine; NSC-639829; ABT-751 (Abbott, also known as E-7010); Altorhyrtins (such 10 as Altorhyrtin A and Altorhyrtin C); Spongistatins (such as Spongistatin 1, Spongistatin 2, Spongistatin 3, Spongistatin 4, Spongistatin 5, Spongistatin 6, Spongistatin 7, Spongistatin 8, and Spongistatin 9); Cemadotin hydrochloride (also known as LU-103793 and NSC-D-669356); Auristatin PE (also known as NSC-654663); Soblidotin (also known as TZT-1027), LS-4559-P (Pharmacia, also known as LS-4577); LS-4578 15 (Pharmacia, also known as LS-477-P); LS-4477 (Pharmacia), LS-4559 (Pharmacia); RPR-112378 (Aventis); Vincristine sulfate; DZ-3358 (Daiichi); GS-164 (Takeda); GS-198 (Takeda); KAR-2 (Hungarian Academy of Sciences); SAH-49960 (Lilly / Novartis); SDZ-268970 (Lilly / Novartis); AM-97 (Armad / Kyowa Hakko); AM-132 (Armad); AM-138 (Armad / Kyowa Hakko); IDN-5005 (Indena); Cryptophycin 52 (also known as LY- 20   355703); Vitilevuamide; Tubulysin A; Canadensol; Centaureidin (also known as NSC- 106969); T-13 8067 (Tularik, also known as T-67, TL-13 8067 and TI-13 8067); COBRA-1 (Parker Hughes Institute, also known as DDE-261 and WHI-261); H10 (Kansas State University); Hl6 (Kansas State University); Oncocidin Al (also known as BTO-956 and DIME); DDE-313 (Parker Hughes Institute); SPA-2 (Parker Hughes Institute); SPA-1 25 (Parker Hughes Institute, also known as SPIKET-P); 3-IAABU (Cytoskeleton / Mt. Sinai School of Medicine, also known as MF-569); Narcosine (also known as NSC-5366); Nascapine, D-24851 (Asta Medica), A-105972 (Abbott); Hemiasterlin; 3-BAABU (Cytoskeleton / Mt. Sinai School of Medicine, also known as MF-191); TMPN (Arizona State University); Vanadocene acetylacetonate; T-138026 (Tularik); Monsatrol; 30 Inanocine (also known as NSC-698666); 3-IAABE (Cytoskeleton / Mt. Sinai School of Medicine); A-204197 (Abbott); T-607 (Tularik, also known as T-900607); RPR-115781 2024202700   24 Apr 2024 (Aventis); Eleutherobins (such as Desmethyleleutherobin, Desaetyleleutherobin, Isoeleutherobin A, and Z-Eleutherobin); Halichondrin B; D-64131 (Asta Medica); D-68144 (Asta Medica); Diazonamide A; A-293620 (Abbott); NPI-2350 (Nereus); TUB-245 (Aventis); A-259754 (Abbott); Diozostatin; (-)-Phenylahistin (also known as NSCL-5   96F037); D-68838 (Asta Medica); D-68836 (Asta Medica); Myoseverin B; D-43411 (Zentaris, also known as D-81862); A-289099 (Abbott); A-318315 (Abbott); HTI-286 (also known as SPA-110, trifluoroacetate salt) (Wyeth); D-82317 (Zentaris); D-82318 (Zentaris); SC-12983 (NCI); Resverastatin phosphate sodium; BPR-0Y-007 (National Health Research Institutes); SSR-250411 (Sanofi); Combretastatin A4; eribulin 1 o (Halaven®); and analogs and derivatives thereof. In further embodiments, compounds according to the invention are used in combination with one or more alkylating agents, antimetabolites, natural products, or hormones. Examples of alkylating agents useful in the methods of the invention include but 15 are not limited to, nitrogen mustards (e.g., mechloroethamine, cyclophosphamide, chlorambucil, melphalan, etc.), ethylenimine and methylmelamines (e.g., hexamethlymelamine, thiotepa), alkyl sulfonates (e.g., busulfan), nitrosoureas (e.g., carmustine, lomusitne, semustine, streptozocin, etc.), or triazenes (decarbazine, etc.). Examples of antimetabolites useful in the methods of the invention include but are 20 not limited to folic acid analog (e.g., methotrexate), or pyrimidine analogs (e.g., fluorouracil, floxouridine, cytarabine), and purine analogs (e.g., mercaptopurine, thioguanine, pentostatin). Examples of natural products useful in the methods of the invention include but are not limited to vinca alkaloids (e.g., vinblastin, vincristine), epipodophyllotoxins (e.g., etoposide, teniposide), antibiotics (e.g., actinomycin D, 25 daunorubicin, doxorubicin, bleomycin, plicamycin, mitomycin) or enzymes (e.g., L-asparaginase). Examples of hormones and antagonists useful for the treatment of cancer include but are not limited to adrenocorticosteroids (e.g., prednisone), progestins (e.g., hydroxyprogesterone caproate, megestrol acetate, medroxyprogesterone acetate), 30 estrogens (e.g., diethlystilbestrol, ethinyl estradiol), antiestrogen (e.g., tamoxifen), 2024202700   24 Apr 2024 androgens (e.g., testosterone propionate, fluoxymesterone), antiandrogen (e.g., flutamide), and gonadotropin releasing hormone analog (e.g., leuprolide). Other agents that can be used in combination with the compounds of the invention for the treatment of cancer include platinum coordination complexes (e.g., cisplatin, 5 carboblatin), anthracenedione (e.g., mitoxantrone), substituted urea (e.g., hydroxyurea), methyl hydrazine derivative (e.g., procarbazine), and adrenocortical suppressant (e.g., mitotane, aminoglutethimide). Other anti-cancer agents / drugs that can be used in combination with the compounds of the invention include, but are not limited to, liver X receptor (LXR) modulators, including LXR agonists and LXR beta-selective agonists; 10 aryl hydrocarbon receptor (AhR) inhibitors; inhibitors of the enzyme poly ADP ribose polymerase (PARP), including olaparib, iniparib, rucaparib, veliparib; inhibitors of vascular endothelial growth factor (VEGF) receptor tyrosine kinases, including cediranib; programmed cell death protein 1 (PD-1) inhibitors, including nivolumab (Bristol-Myers Squibb Co.) and pembrolizumab (Merck & Co., Inc.; MK-3475); MEK inhibitors, 15 including cobimetinib; B-Raf enzyme inhibitors, including vemurafenib; cytotoxic T lymphocyte antigen (CTLA-4) inhibitors, including tremelimumab; programmed deathligand 1 (PD-L1) inhibitors, including MEDI4736 (AstraZeneca); inhibitors of the Wnt pathway; inhibitors of epidermal growth factor receptor (EGFR) including AZD9291 (AstraZeneca), erlotinib, gefitinib, panitumumab, and cetuximab; adenosine A2A 20 receptor inhibitors; adenosine A2B receptor inhibitors; colony-stimulating factor-1 receptor (CSF1R) inhibitors, including PLX3397 (Plexxikon), and inhibitors of CD73. The compounds of the invention can be used in combination with one or more therapeutic strategies including immune checkpoint inhibitors, including inhibitors of PD-1, PD-L1, and CTLA-4. 25         The compounds of the invention can be used in combination with one or more anti-cancer agents selected from MCL-1 inhibitors, e.g., homoharringtonin (HHT) and omacetaxine; BCL-2 inhibitors, e.g., venetoclax (ABT-199), navitoclax (ABT-263), ABT-737, gossypol (AT-101), apogossypolone (ApoG2) and obatoclax; selective inhibitors of nuclear export (SINEs), e.g., selinexor (KPT-330). 30          In particular embodiments, the compounds of the invention are used in combination with one or more anti-cancer agents selected from methotrexate 2024202700   24 Apr 2024 (Abitrexate®; Fol ex®; Fol ex PFS®; Mexate®; Mexate-AQ®); nelarabine (Arranon®); blinatumomab (Blincyto®); rubidomycin hydrochloride or daunorubicin hydrochloride (Cerubidine®); cyclophosphamide (Clafen®; Cytoxan®; Neosar®); clofarabine (Clofarex®; Clolar®); cytarabine (Cytosar-U®; Tarabine PFS®); dasatinib (Sprycel®); 5 doxorubicin hydrochloride; asparaginase Erwinia chrysanthemi (Erwinaze); imatinib mesylate (Gleevec®); ponatinib hydrochloride (Iclusig®); mercaptopurine (Purinethol; Purixan); pegaspargase (Oncaspar®); prednisone; vincristine sulfate (Oncovin®, Vincasar PFS®, Vincrex®); vincristine sulfate liposome (Marqibo®); hyper-CVAD (fractionated cyclophosphamide, vincristine, adriamycin, and dexamethasone); arsenic trioxide 10 (Trisenox®); idarubicin hydrochloride (Idamycin®); mitoxantrone hydrochloride; thioguanine (Tabloid®); ADE (cytarabine, daunorubicin, and etoposide); alemtuzumab (Lemtrada®, Campath®); chlorambucil (Ambochlorin®, Amboclorin®, Leukeran®, Linfolizin®); ofatumumab (Arzerra®); bendamustine hydrochloride (Treanda®); fludarabine phosphate (Fludara®); obinutuzumab (Gazyva®); ibrutinib (Imbruvica®); 15 idelalisib (Zydelig®); mechlorethamine hydrochloride (Mustargen®); rituximab (Rituxan®); chlorambucil-prednisone; CVP (cyclophosphamide, vincristine, and prednisone); bosutinib (Bosulif®); busulfan (Busulfex®; Myleran®); omacetaxine mepesuccinate (Synribo®); nilotinib (Tasigna®); Intron® A (recombinant interferon Alfa-2b); DOT IL inhibitors, including EPZ-5676 (Epizyme, Inc.); and inhibitors of 20 bromodomain and extra-terminal motif (BET) proteins (BET inhibitors), including MS417, JQ1,1-BET 762, and I-BET 151 for the treatment of leukemia. Compounds of the invention can be used in combination with one or more other agents or therapies for the treatment of insulin resistance, pre-diabetes, diabetes (e.g., Type 2 diabetes or Type 1 diabetes), and risk of diabetes, including but not limited to 25 insulins and insulin analogues, such as Humulin® (Eli Lilly), Lantus® (Sanofi Aventis), Novolin® (Novo Nordisk), and Exubera® (Pfizer); Avandamet® (metformin HCI and rosiglitazone maleate, GSK); Avandaryl® (glimepiride and rosiglitazone maleate, GSK); Metaglip® (glipizide and metformin HCI, Bristol Myers Squibb); Glucovance® (glyburide and metformin HCI, Bristol Myers Squibb); PPAR gamma agonists, such as 30 Avandia® (rosiglitizone maleate, GSK) and Actos® (pioglitazone hydrochloride, Takeda / Eli Lilly); sulfonylureas, such as Amaryl® (glimepiride, Sanofi Aventis), 2024202700   24 Apr 2024 Diabeta® (glyburide, Sanofi Aventis), Micronase® / Glynase® (glyburide, Pfizer), and Glucotrol® / Glucotrol XL® (glipizide, Pfizer); meglitinides, such as Prandin® / NovoNorm® (repaglinide, Novo Nordisk), Starlix® (nateglinide, Novartis), and Glufast® (mitiglinide, Takeda); biguanides, such as Glucophase® / Glucophase XR® (metformin HCI, Bristol 5 Myers Squibb) and Glumetza® (metformin HCI, Depomed); thiazolidinediones; amylin analogs; GLP-1 analogs; DPP-IV inhibitors such as Januvia® (sitagliptin, Merck) and Galvus® (vildagliptin, Novartis); PTB-1 B inhibitors; protein kinase inhibitors (including AMP-activated protein kinase inhibitors); glucagon antagonists, glycogen synthase kinase-3 beta inhibitors; glucose-6-phoshatase inhibitors; glycogen phosphorylase 10 inhibitors; sodium glucose co-transporter inhibitors; and alpha-glucosidase inhibitors, such as Glycet® (miglitol, Pfizer); statins, fibrates, and Zetia® (ezetimibe); alphablockers; beta-blockers; calcium channel blockers; diuretics; angiotensin converting enzyme (ACE) inhibitors; dual ACE and neutral endopeptidase (NEP) inhibitors; angiotensin-receptor blockers (ARBs); aldosterone synthase inhibitors; aldosterone- 15 receptor antagonists; endothelin receptor antagonists; orlistat; phentermine; sibutramine; Acomplia® (rimonabant); thiazolidinediones (e.g., rosiglitazone, pioglitazone); SGLT 2 inhibitors (e.g., dapagliflozin, remogliflozin etabonate, sergliflozin, canagliflozin, and 1 -chloro-4-(P-D- glucopyranos-l-yl)-2-[4-(('S)-tetrahydrofuran-3-yloxy)-benzyl]-benzene); PPAR-gamma-agonists (e.g., G1 262570) and antagonists; PPAR-gamma / alpha 20 modulators (e.g., KRP 297); alpha-glucosidase inhibitors (e.g., acarbose, voglibose); DPPIV inhibitors (e.g., Januvia® (sitagliptin), Galvus® / Zomelis® (vildagliptin), Onglyza® (saxagliptin), Nesina® / Vipidia® (alogliptin), and Tradjenta® / Trajenta® (linagliptin)); alpha2-antagonists; glucagon-like protein-1 (GLP-1) receptor agonists and analogues (e.g., exendin-4); amylin; inhibitors of protein tyrosinephosphatase 1; substances that 25 affect deregulated glucose production in the liver, e.g., inhibitors of glucose-6-phosphatase, or fructose-1 ,6- bisphosphatase, glycogen phosphorylase; glucagon receptor antagonists; inhibitors of phosphoenol pyruvate carboxykinase; glycogen synthase kinase and glucokinase activators; lipid lowering agents such as HMG-CoA-reductase inhibitors (e.g., simvastatin, atorvastatin); fibrates (e.g., bezafibrate, 30 fenofibrate), nicotinic acid and the derivatives thereof, PPAR-alpha agonists, PPAR-delta agonists; ACAT inhibitors (e.g., avasimibe); cholesterol absorption inhibitors such as 2024202700   24 Apr 2024 ezetimibe; bile acid-binding substances such as cholestyramine; inhibitors of ileac bile acid transport; HDL-raising compounds such as CETP inhibitors and ABC1 regulators; active substances for treating obesity such as sibutramine and tetrahydrolipostatin; SDRIs; axokine; leptin; leptin mimetics; antagonists of the cannabinoid 1 receptor; and 5 MCH-1 receptor antagonists; MC4 receptor agonists; NPY5 and NPY2 antagonists; beta3 adrenergic agonists such as SB- 418790 and AD-9677; agonists of the 5HT2c receptor; GABA-receptor antagonists; Na-channel blockers; topiramate; protein-kinase C inhibitors; advanced glycation end product inhibitors; and aldose reductase inhibitors. 10   Pharmaceutical Formulations, Administration, and Dosage Forms When employed as pharmaceuticals, the compounds of the invention can be administered in the form of a pharmaceutical composition which refers to a combination of a compound of the invention, or its pharmaceutically acceptable salt, and at least one pharmaceutically acceptable carrier. These compositions can be prepared in a manner 15 well known in the pharmaceutical art, and can be administered by a variety of routes, depending upon whether local or systemic treatment is desired and upon the area to be treated. Administration may be topical (including ophthalmic and to mucous membranes including intranasal, vaginal and rectal delivery), pulmonary (e.g., by inhalation or insufflation of powders or aerosols, including by nebulizer; intratracheal, intranasal, 20 epidermal and transdermal), ocular, oral or parenteral. Methods for ocular delivery can include topical administration (eye drops), subconjunctival, periocular or intravitreal injection or introduction by balloon catheter or ophthalmic inserts surgically placed in the conjunctival sac. Parenteral administration includes intravenous, intraarterial, subcutaneous, intraperitoneal, or intramuscular injection or infusion; or intracranial, e.g., 25 intrathecal or intraventricular, administration. Parenteral administration can be in the form of a single bolus dose, or may be, for example, by a continuous perfusion pump. Pharmaceutical compositions and formulations for topical administration may include transdermal patches, ointments, lotions, creams, gels, drops, suppositories, sprays, liquids and powders. Conventional pharmaceutical carriers, aqueous, powder or oily bases, 30 thickeners and the like may be necessary or desirable. 2024202700   24 Apr 2024 This invention also includes pharmaceutical compositions which contain, as the active ingredient, one or more of the compounds of the invention above in combination with one or more pharmaceutically acceptable carriers. In making the compositions of the invention, the active ingredient is typically mixed with an excipient, diluted by an 5 excipient or enclosed within such a carrier in the form of, for example, a capsule, sachet, paper, or other container. When the excipient serves as a diluent, it can be a solid, semisolid, or liquid material, which acts as a vehicle, carrier or medium for the active ingredient. Thus, the compositions can be in the form of tablets, pills, powders, lozenges, sachets, cachets, elixirs, suspensions, emulsions, solutions, syrups, aerosols (as a solid or 10 in a liquid medium), ointments containing, for example, up to 10% by weight of the active compound, soft and hard gelatin capsules, suppositories, sterile injectable solutions, and sterile packaged powders. Compounds or compositions described herein may be administered to a patient using any amount and any route of administration effective for treating or lessening the 15 severity of one or more of the diseases and conditions described herein. The exact amount required will vary from subject to subject, depending on the species, age, and general condition of the subject, the severity of the infection, disease or disorder, the particular agent, its mode of administration, and the like. Provided compounds are preferably formulated in a particular unit dosage form for ease of administration and 20 uniformity of dosage. The expression "unit dosage form" as used herein refers to a physically discrete unit of agent appropriate for the patient to be treated. The therapeutic dosage of the compounds of the present invention can vary according to, for example, the particular use for which the treatment is made, the manner of administration of the compound, the health and condition of the patient, and the 25 judgment of the prescribing physician. The proportion or concentration of a compound of the invention in a pharmaceutical composition can vary depending upon a number of factors including dosage, chemical characteristics (e.g., hydrophobicity), and the route of administration. For example, the compounds of the invention can be provided in an aqueous physiological buffer solution containing about 0.1 to about 10% w / v of the 30 compound for parenteral administration. Some typical dose ranges are from about 1 pg / kg to about 1 g / kg of body weight per day. In some embodiments, the dose range is 2024202700   24 Apr 2024 from about 0.01 mg / kg to about 100 mg / kg of body weight per day. The dosage is likely to depend on such variables as the type and extent of progression of the disease or disorder, the overall health status of the particular patient, the relative biological efficacy of the compound selected, formulation of the excipient, and its route of administration. 5 Effective doses can be extrapolated from dose-response curves derived from in vitro or animal model test systems. EXAMPLES As depicted in the Examples below, compounds of the invention were prepared 1 o and isolated according to the following general procedures. It will be appreciated that, although the general methods may depict the synthesis of certain compounds of the present invention, the following general methods, and other methods known to one of ordinary skill in the art, can be applied to all compounds and subclasses and species of each of these compounds, as described herein. 15          Microwave reactions were performed in a CEM reactor using discovery SP system. Where NMR data are presented, spectra were obtained in a Varian-400 (400 MHz). Spectra are reported as ppm downfield from tetramethylsilane with the number of proton, multiplicities and, in certain instances, coupling constants indicated parenthetically along with reference to deuterated solvent. Compounds were also purified 20 by ISCO flash chromatography system utilizing standard methods described in the manual. Compounds were purified by acidic, basic, or neutal preparative HPLC method as described below in HPLC Methods A to G. Preparative RP-HPLC Method A: 25         RP-HPLC (C-18, Boston Green ODS 150*30mm*5pm; eluent-gradient: water+0.1 % TFA / acetonitrile = 81:19 to 51:49) Mobile phase A: water+0.1%TFA; Mobile phase B: CH3CN; Flow rate: 30 mL / min; Detection: UV 220 nm / 254 nm; Column: Boston Green ODS 150*30mm*5pm; Column temperature: 30 °C. Time in min %A %B 0.00 81 19 2024202700   24 Apr 2024 8.00 51 49 8.20 0 100 10.00 0 100 Preparative RP-HPLC Method B: RP-HPLC (C-18, Phenomenex Synergi C18 250*21.2mm*4pm; eluent-gradient: water+0.1% TFA / acetonitrile = 75: 25 to 45:55). 5         Mobile phase A: water+0.1%TFA; Mobile phase B: CH3CN; Flow rate: 25 mL / min; Detection: UV 220 nm / 254 nm; Column: Phenomenex Synergi Cl8 250*21.2mm*4pm; Column temperature: 30 °C. %B Time in min %A 0.00 75 25 10.00 45 55 10.20 0 100 12.00 0 100 Preparative RP-HPLC Method C: RP-HPLC (C-18, Phenomenex Synergi C18 250*21.2mm*4pm; eluent-gradient: 10   water+0.0 5 %HC1 / acetonitrile = 82:18 to 52:48). Mobile phase A: water with 0.05% HC1; Mobile phase B: CH3CN; Flow rate: 30 mL / min; Detection: UV 220 nm / 254 nm; Column: Phenomenex Gemini 150*30mm*4pm; Column temperature: 30 °C. %B Time in min %A 0.00 82 18 8.00 52 48 8.20 0 100 10.00 0 100 Preparative RP-HPLC Method D: 15         RP-HPLC (C-18, Phenomenex Gemini 150*25 mm* 10 pm; eluent-gradient: water+0.05% ammonia hydroxide / acetonitrile = 30:70 to 0:100). 2024202700   24 Apr 2024 Mobile phase A: water with 0.05% ammonia hydroxide; Mobile phase B: CH3CN; Flow rate: 25 mL / min; Detection: UV 220 nm / 254 nm; Column: Phenomenex Gemini 150*25mm*10pm; Column temperature: 30 °C. Time in min   %A  %B 0.00        30    70 8.00         0    100 8.20         0    100 10.00        0    100 Preparative RP-HPLC Method E: 5          Mobile phase A: water with 0.1% TFA; Mobile phase B: acetonitrile with 0.1% TFA; Flow rate: 25 mL / min; Detection: UV 220 nm / 254 nm; Column: C-18 Synergi Max-RP 150*30mm*4pm; Column temperature: 30 °C. Time in min   %A  %B 0.00        90    10 12.00       60    40 12.20        10    90 13.5        90    10 Neutral preparative HPLC method F: Mobile phase A: water 10         Mobile phase B: CH3CN Flow rate: 120 mL / min Detection: UV 220 nm / 254 nm Column: Phenomenex Synergi Max-RP 250*50mm*10 um Column temperature: 30 °C Time in min   %A  %B 0.00        80    20 23.00       35    65 23.20        0    100 26.00        0    100 15 Preparative HPLC method G: Mobile phase A: water (lOmM NH4HCO3) 2024202700   24 Apr 2024 Mobile phase B: CH3CN Flow rate: 25 mL / min Detection: UV 220 nm / 254 nm Column: Xtimate Cl8 150 * 25 mm * 5 um 5          Column temperature: 30 °C Time in min %A  %B 0.00        72    28 10.00       52    48 10.20        0    100 13.00        0    100 LCMS data were obtained by utilizing the following chromatographic conditions: LCMS Method A: HPLC System: Waters ACQUITY; Column: Waters ACQUITY CSH™ C18 1.7 10 pM.Guard column: Waters Assy. Frit, 0.2 pM, 2.1 mm; Column temperature: 40 °C. Mobile Phase: A: TFA: Water (1: 1000, v:v); Mobile phase B: TFA: ACN (1: 1000, v:v); Flow Rate: 0.65 mL / min; Injection Volume: 2 pL; Acquisition time: approximately 1.5 min. 15   Gradient Program: Time (min) B% 0.00        10 1.0         90 1.20         10 Mass Spectrometer: Waters SQD; Ionization: Positive Electrospray Ionization (ESI); Mode Scan (100-1400 m / z in every 0.2 second); ES Capillary Voltage: 3.5 kV; ES Cone Voltage: 25 V. Source Temperature: 120 °C; Desolvation Temperature: 500 °C; Desolvation Gas 20 Flow: Nitrogen Setting 650 (L / h); Cone Gas Flow: Nitrogen Setting 50 (L / h). LCMS Method B: 2024202700   24 Apr 2024 HPLC System: Waters ACQUITY; Column: Waters ACQUITY CSH™ C18 1.7 pM.Guard column: Waters Assy. Frit, 0.2 pM, 2.1 mm; Column tern: 40 °C. Mobile Phase: A: TFA: Water (1: 1000, v:v); Mobile phase B: TFA: ACN (1: 1000, v:v); Flow Rate: 0.65 mL / min; Injection Volume: 2 pL; Acquisition time: 5 approximately 1.5 min. Time (min) B% 0.00        10 2         90 2.20        90 Mass Spectrometer: Waters SQD; Ionization: Positive Electrospray Ionization (ESI); Mode Scan (100-1400 m / z in every 0.2 second); ES Capillary Voltage: 3.5 kV; ES Cone Voltage: 25 v. 10          Source Temperature: 120 °C; Desolvation Temperature: 500 °C; Desolvation Gas Flow: Nitrogen Setting 650 (L / h); Cone Gas Flow: Nitrogen Setting 50 (L / h). LCMS Method C: Column MERCK, RP-18e 25-2mm Mobile Phase A: water(4L)+TFA( 1.5mL) B: acetonitrile) ;4L)+TFA(0.75mL) TIME (min) B% 0 5 0.7 95 1.1 95 1.11 5 1.5 5 Flow Rate 1.5 mL / min wavelength UV 220, 224 nm Oven Temp 50 °C MS ionization ESI 15 LCMS Method D: Column Xbrige Shield RP-18,5 pm, 2.1*50mm Mobile Phase A: water(lL)+NH3H2O(0.5mL) B: acetonitrile TIME(min) B% 2024202700   24 Apr 2024 0 10 2 80 2.48 80 2.49 10 3 10 Flow Rate 1.0 mL / min wavelength UV 220 nm Oven Temp 30 °C MS ionization ESI LCMS Method E: Column Xtimate C18 2.1*30mm,3pm Mobile Phase A: water(4L)+TFA( 1.5 mL) B: acetonitrile (4L)+TFA(0.75mL) TIME(min) B% 0 10 0.9 80 1.5 80 1.51 10 2 10 Flow Rate 1.2 mL / min wavelength UV 220 nm Oven Temp 50 °C MS ionization ESI LCMS Method F: Column Xtimate C18 2.1*30mm,3pm Mobile Phase A: water(4L)+TFA( 1.5 mL) B: acetonitrile(4L)+TFA(0.75mL) TIME(min) B% 0 0 0.9 60 1.5 60 1.51 0 2 0 Flow Rate 1.2 mL / min wavelength UV 220 nm Oven Temp 50 °C MS ionization ESI LCMS Method G: 2024202700   24 Apr 2024 HPLC System: Waters ACQUITY; Column: Waters ACQUITY CSH™ C18 1.7 pM.Guard column: Waters Assy. Frit, 0.2 pM, 2.1 mm; Column tern: 40 °C. Mobile Phase: A: TFA: Water (1: 1000, v:v); Mobile phase B: TFA: ACN (1: 1000, v:v); Flow Rate: 1 mL / min; Injection Volume: 2 pL; Acquisition time: 5 approximately 115 min. Time in min B% 0.1          10 2.0          10 14         90 15         90 16         10 Mass Spectrometer: Waters SQD; Ionization: Positive Electrospray Ionization (ESI); Mode Scan (100-1400 m / z in every 0.2 second); ES Capillary Voltage: 3.5 kV; ES Cone Voltage: 25 v. Source Temperature: 120 °C; Desolvation Temperature: 500 °C; Desolvation Gas 10 Flow: Nitrogen Setting 650 (L / h); Cone Gas Flow: Nitrogen Setting 50 (L / h). The following are Supercritical Fluid Chromatography (SFC) separation methods for racemic compounds. Method A 15         Instrument: Thar SFC 80; Column: AD 250mm*30mm, 5pm; Mobile phase: A: Supercritical CO2, B: IPA (0.05% DEA), A: B =80:20 at 60 mL / min; Column Temp: 38 °C; Nozzle Pressure: 100 Bar; Nozzle Temp: 60 °C; Evaporator Temp: 20 °C; Trimmer Temp: 25 °C; Wavelength: 220 nm. 20 Method B Instrument: SFC MG2; Column: OJ 250mm*30mm, 5pm; Mobile phase: A: Supercritical CO2, B: MeOH (0.05% DEA), A:B =90:10 at 70 mL / min; Column Temp: 38 °C; Nozzle Pressure: 100 Bar Nozzle Temp: 60 °C; Evaporator Temp: 20 °C; Trimmer Temp: 25 °C; Wavelength: 220nm. 2024202700   24 Apr 2024 The following are SFC analytical (anal.) methods utilized to characterize final compounds. SFC Anal. Method A: Instrument: Thar SFC 80; Column: AD_H 4 mm*40mm, 5pm; Mobile phase: A: Supercritical CO2, B: IPA (0.05% DEA), A: B =80:20 at 4 5 mL / min; 3 min run, Column Temp: 38 °C; Nozzle Pressure: 100 Bar; Nozzle Temp: 60 °C; Evaporator Temp: 20 °C; Trimmer Temp: 25 °C; Wavelength: 220 nm. SFC Anal. Method B: Instrument: Thar SFC 80; Column: AD_H 4 mm*40mm, 5pm; Mobile phase: A: Supercritical CO2, B: IPA (0.05% DEA), A: B =80:20 at 2.4 mL / min; 10 min run, Column Temp: 38 °C; Nozzle Pressure: 100 Bar; Nozzle Temp: 10   60 °C; Evaporator Temp: 20 °C; Trimmer Temp: 25 °C; Wavelength: 220 nm. SFC Anal. Method C: Instrument: Thar SFC 80; Column: AD_H 4 mm*40mm, 5pm; Mobile phase: A: Supercritical CO2, B: IPA (0.05% DEA), A: B =80:20 at 2.8 mL / min; 13 min run, Column Temp: 38 °C; Nozzle Pressure: 100 Bar; Nozzle Temp: 60 °C; Evaporator Temp: 20 °C; Trimmer Temp: 25 °C; Wavelength: 220 nm. 15         SFC Anal. Method D: Instrument: Thar SFC 80; Column: AD-3, 5 mm*40mm, 5pm; Mobile phase: A: Supercritical CO2, B: IPA (0.05% DEA), A: B =80:20 at 25 mL / min; 5 min run, Column Temp: 38 °C; Nozzle Pressure: 100 Bar; Nozzle Temp: 60 °C; Evaporator Temp: 20 °C; Trimmer Temp: 25 °C; Wavelength: 220 nm. 20 X-ray Powder Diffraction (XRPD) Method A Rigaku MiniFlex 600 X-ray diffractometer with a high speed D / teX detector was used under the following conditions: 40kV, 15mA, Cu K-alpha radiation (wavelength = 1.54 A). The 2-theta scanning range was 3-45° and the scanning rate was 10° / min. 25 X-ray Powder Diffraction (XRPD) Method B Parameter Value Instrument Rigaku SmartLab System Geometry Reflection BB X-ray Tube copper Monochromati zati on beta filter Detector D’teX PSD 2024202700   24 Apr 2024 Voltage (kV) 40.00 Current (mA) 44.00 Start Angle (29) 2.00 End Angle (29) 70.00 Step Size (29) 0.04 Scan Speed (29) 3.00 Slits (SOdeg, SI deg, S3mm) 1 / 3, 4, 13 Measurement Type symmetric 9:29 Sample Holder Si low-background Sample Rotation (RPM) 75 X-ray Powder Diffraction (XRPD) Method C Transmission Geometry XRPD patterns were collected with a PANalytical X'Pert PRO MPD 5 diffractometer using an incident beam of Cu radiation produced using an Optix long, fine-focus source. An elliptically graded multilayer mirror was used to focus Cu Ka X-rays through the specimen and onto the detector. Prior to the analysis, a silicon specimen (NIST SRM 640e) was analyzed to verify the observed position of the Si-111 peak was consistent with the NIST-certified position. A specimen of the sample was placed 10 between 3-pm-thick films and analyzed in transmission geometry. A beam-stop, short antiscatter extension, and antiscatter knife edge were used to minimize the background generated by air. Soller slits for the incident and diffracted beams were used to minimize broadening from axial divergence. Diffraction patterns were collected using a scanning position-sensitive detector (X'Celerator) located 240 mm from the specimen and Data 15    C oil ector software v. 2.2b. Reflection Geometry XRPD patterns were collected with a PANalytical X'Pert PRO MPD diffractometer using an incident beam of Cu Ka radiation produced using a long, fine- 20 focus source and a nickel filter. The diffractometer was configured using the symmetric Bragg-Brentano geometry. Prior to the analysis, a silicon specimen (NIST SRM 640e) 2024202700   24 Apr 2024 was analyzed to verify the observed position of the Si-111 peak was consistent with the NIST-certified position. A specimen of the sample was prepared as a thin, circular layer centered on a silicon zero-background substrate. Antiscatter slits (SS) were used to minimize the background generated by air. Soller slits for the incident and diffracted 5 beams were used to minimize broadening from axial divergence. Diffraction patterns were collected using a scanning position-sensitive detector (X'Celerator) located 240 mm from the sample and Data Collector software v.2.2b. Differential Scanning Calorimetry (DSC) 10          DSC measurements were performed using a TA Instruments 2920 differential scanning calorimeter. Temperature calibration was performed using NIST-traceable indium metal. Dynamic Vapor Sorption / Desorpotion (DVS) 15          Moisture sorption / desorption data were collected on a VTI SGA-100 Vapor Sorption Analyzer. NaCl and PVP were used as calibration standards. Samples were not dried prior to analysis. Sorption and desorption data were collected over a range from 5% to 95% RH at 10% RH increments under a nitrogen purge. The equilibrium criterion used for analysis was less than 0.0100% weight change in 5 minutes with a maximum 20 equilibration time of 3 hours. Data were not corrected for the initial moisture content of the samples. Thermal Gravimetric Analysis (TGA) TG analyses were performed using a TA Instruments Q5000 IR 25 thermogravimetric analyzer. Temperature calibration was performed using nickel and ALUMEL™. Each sample was prepared in a platinum pan and the furnace was heated under nitrogen. The invention is illustrated by the following examples, in which the following 30 abbreviations may be employed: Abbreviation Meaning 2024202700   24 Apr 2024 ACN acetonitrile BOP (benzotri azol-1 -yloxy)tris(dimethylamino)phosphonium hexafluorophosphate BTC bis(trichloromethyl) carbonate DCE 1,2-di chloroethane DCM methylene chloride DIEA diisopropylethyl amine DMA dimethyl acetamide DMF dimethyl formamide dppf 1,1 -bis(diphenylphosphino)ferrocene DSC differential scanning calorimetry DVS dynamic vapor sorption / desorption EDX energy-dispersive X-ray spectroscopy EtN triethylamine EtOAc ethyl acetate EtOH ethanol h hour(s) HATU l-[bis(dimethylamino)methylene]-lH-l,2,3-triazolo[4,5-b]pyridinium 3-oxid hexafluorophosphate. HBTU 2-(lH-benzotri azole-1 -yl)-1,1,3,3 -tetramethyluronium hexafluorophosphate HC1 hydrochloric acid HPLC high performance liquid chromatography Im imidazaole KI potassium iodide K3PO4 Potassium phosphate LCMS liquid chromatography-mass spectorphotmetry min minute(s) Me methyl mL milliliters mmol millimoles mg milligram NaBH3CN sodium cyanoborohydride PLM polarized light microscopy RP reverse phase RT room temperature SFC supercritical fluid chromatography SPhos Gen 2 Chloro(2-dicyclohexylphosphino-2',6'-dimethoxy-l, 1 biphenyl)[2-(2'-amino-1,1 '-biphenyl)]palladium(II), tR; tr, Rt, retention time TBAF tetra butyl ammonium fluoride TBDMS tert butyl dimethyl silyl TEA triethylamine TFA trifluoroacetic acid THF tetrahydrofuran 77 2024202700   24 Apr 2024 TGA thermogravimetric analysis TLC thin layer chromatography XPhos dicyclohexyphosphino-2',4',6' triiso-propyl-l,l'-biphenyl XRPD X-ray powder diffraction Intermediate 1. 5-(2-bromo-4-fluorophenoxy)-4-chloropyrimidine Br         Cl 5 Step 1: Ethyl 2-(2-bromo-4-fluorophenoxy)acetate Br O To solution of 2-bromo-4-fluorophenol (250 g, 1.31 mol) in CH3CN (2 L) was added K2CO3 (270 g, 1.97 mol) and ethyl 2-bromoacetate (219 g, 1.31 mol). The suspension was heated at 90 °C for 1.5 h. The mixture was filtered and the fitrate was 10 concentrated to give crude ethyl 2-(2-bromo-4-fluorophenoxy)acetate as a brown oil, which was used directly in next step.Yield: 312 g; 'HNVIR (CDCh): d 7.32 (dd, J= 7.6, 3.2 Hz, 1H), 6.95-6.97 (m, 1H), 6.82 (dd, J= 8.8, 4.4 Hz, 1H), 4.66 (s, 2H), 4.27 (q, J= 7.2 Hz, 2H), 1.31 (t, J= 7.2 Hz, 3H). 'F NMR (CDCh): d -120.06 (s, IF). 15 Step 2: 5-(2-bromo-4-fluorophenoxy)-2-thioxo-2,3-dihydropyrimidm-4(lH)-one Br O To a solution of ethyl 2-(2-bromo-4-fluorophenoxy)acetate (100 g) in anhydrous THF (2 L) was added ethyl formate (108 g) and NaH (20 g) at 0 °C. The mixture was stirred at 35-45 °C for 18 h. The solvent was removed under vacuum and anhydrous 20 EtOH (2 L) and thiourea (25 g, 324.8 mmol) were added and stirred at 90 °C for 16 h. The mixture was concentrated and diluted with water (2 L) and extrated with petroleum ether:ethyl acetate (10:1; 500 mL x 3). The aqueous layer was acidified to pH = 4 by aq. 2024202700   24 Apr 2024 HC1 (IN, 200 mL) and white solid was preciptated. The mixture was fitered and the resulting filter cake was dried to give crude 5-(2-bromo-4-fluorophenoxy)-2-thioxo-2,3-dihydropyrimidin-4(lH)-one (62 g) as a withe solid, which was used directly in next step without purification.Yield: 62 g; LCMS method C: Rt = 0.638 min; (M+H)+ = 316.9, 5   318.9 (chlorine isotopes). Step 3: 5-(2-bromo-4-fluorophenoxy)pyrimidin-4-ol Br OH To a solution of 5-(2-bromo-4-fluorophenoxy)-2-thioxo-2,3-dihydropyrimidin-10 4(lH)-one (62 g) in anhydrous EtOH (1.5 L) was added Raney Ni (62 g) and the mixture was heated at reflux for 6 h. The solvent was removed under vacuum and anhydrous EtOH (2 L) was added. The mixture was fitered and filtrate stock was concentrated to give crude 5-(2-bromo-4-fluorophenoxy)pyrimidin-4-ol as a grey solid.Yield: 55 g. LCMS method C: Rt = 0.619 min, (M+H)+ = 284.9 287.0 (chlorine isotopes). 15 Step 4: 5-(2-bromo-4-fluorophenoxy)-4-chloropyrimidine To a solution of 5-(2-bromo-4-fluorophenoxy)pyrimidin-4-ol (55 g) in SOCh (500 mL) was added anhydrous DMF (5 mL). The mixture was heated at 70 °C for 4 h. The mixture was concentrated, dissolved with DCM (500 mL), then poured into saturated 20 NaHCCh (aq) (500 mL) and stirred at RT for 2 h. The organic layer was separated, dried over Na2SO4, filtered, and concentrated. The residue was then purified by ISCO column on silica gel (from 100% petroleum ether to EtOAc: petroleum ether = 9:1) to give 5-(2-bromo-4-fluorophenoxy)-4-chloropyrimidine as a light yellow solid. Yield: 32 g. LCMS method C: Rt = 0.858 min, (M+H)+ = 302.9, 304.9 (chlorine & bromine isotopes); 'H 25 NMR (CDCh): b 8.22 (s, 1H), 8.07 (s, 1H), 7.45 (dd, J= 2.6 3.2 Hz, 1H), 7.06-7.12 (m, 2H). 'F NMR (CDCh): ¢5-113.64 (s, IF). Intermediates 2-10a. 2024202700   24 Apr 2024 The following intermediates were prepared according to the procedure described for Intermediate 1. Table 1. Intermediates 2-10a. Int. No. Name Structural formula Yield Mass peak(s) (M+H)+ Rf value or Rt 2 4-chloro-5-(2,6-dichloro-4-fluorophen oxy)pyrimi dine Cl          Cl xX 87% 294.9, 296.9 Rt = 0.828 LCMS method C XH NMR (CDCh): 3 8.75 (s, 1H), 7.88 (s, 1H), 7.26 (s, 1H), 7.24 (s, 1H). 19F NMR: (CDCh): 3 -110.54 (s, IF). 3 4-chloro-5-(2-chloro-3,4-difluorophe noxy)pyrim idine Cl Cl hX- 42% 277.0, 279.0 0.994 min LCMS method C 'H NMR (CDCh): 3 8.81 (s, 1H), 8.17 (s, 1H), 7.10-7.20 (m, 1H), 6.80-6.85 (m, 1H).19FNMR: (CDCh): 3 -132.37, -136.57. 4 4-chloro-5-(4-fluoro-2-(trifluorom ethyl)phen oxy) pyrimidine Tl 4 o / / -n v__y w O z     o V / - 32% 292.9 0.886 min in LCMS method C 'H NMR (CDCh): 3 8.80 (s, 1H), 8.26 (s, 1H), 7.46 (d, J= 8.0 Hz, 1H), 7.15-7.25 (m, 1H), 6.81-6.95 (m, 1H). 19F NMR: (CDCh): 3 -62.00 ~ -62.29, -114.92 ~ -114.95. 5 ethyl 2-(2-chloro-4-(trifluorom ethyl)phen oxy)acetate Cl          Cl JLJ Ujn f3c^^   hr 15% 308.8, 310.8 0.854 min in LCMS method C 6 4-chloro-5-(4-fluoro-2-(trifluorom ethyl)phen oxy) pyrimidine Cl          Cl / Or Xj o 36% 276.8, 278.8 0.834 min in LCMS method C XH NMR (CDCh): ¢5 8.79 (s, 1H), 8.15 (s, 1H), 7.55 (d, J= 2.0 Hz, 1H), 7.30 (dd, J= 8.8 2.4 Hz, 1H), 6.99 (d, J= 8.8 Hz, 1H). 2024202700   24 Apr 2024 Int. No. Name Structural formula Yield Mass peak(s) (M+H)+ Rf value or Rt 7 4-chloro-5-(4-fluoro-2- (trifluorom ethyl)phen oxy) pyrimidine Br         Cl X / 0. X rx o 14% 320.8, 322.8 0.878 min in LCMS method C 8 4-chloro-5-(2- bromo-3, 4-difluorophe noxy) pyrimidine LL      LL 31% 321.0, 323.1 1.645 min in LCMS method C 9 5-(2-bromo- 4,5 difluoro phenoxy)-4chloro pyrimidine Br         Cl X FT X F 31% 320.8, 322.8 1.025 min in LCMS method C 10 4-chloro-5-(2-chloro- 3- (trifluorom ethyl)phen oxy) pyrimidine Cl          Cl F3C. X / 0. X Yj Yjn 25% 309.1, 310.9 0.841 min in LCMS method C 'H NMR (CD3OD): 3 8.82 (s, 1 H), 8.40 (s, 1 H), 7.70 (d, J= 8.0 Hz, 1 H), 7.54 (t, J = 8.0 Hz, 1 H) 7.39 (d, J = 8.0 Hz, 1 H). 19F NMR (CD3OD): 3 -63.82 (m, 3 F). 10a 4-chloro-5-(2-chloro-4-fluorophen oxy)pyrimi dine Cl          Cl Xj 45% 258.1, 260.1 0.829 min in LCMS method C Intermediate 11. tert-Butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7- diazaspiro [4.4] nonane-2-carboxylate 2024202700   24 Apr 2024 A solution of 5-(2-bromo-4-fluorophenoxy)-4-chloropyrimidine (Intermediate 1, 4 g, 13.18 mmol), tert-butyl 2,7-diazaspiro[4.4]nonane-2-carboxylate (3.0 g, 13.18 mmol) and K2CO3 (7.3 g, 52.72 mmol) in CH3CN (100 mL) was stirred at 95 °C for 8 h. The 5 solid was filtered off and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (eluting with petroleum ether:ethyl acetate = 10:1 to 3:2) to afford tert-butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (Intermediate 11) as a yellow oil. Yield: 9.5 g; HPLC method C: Rt = 0.749 min; (M+H)+ = 493.0 10 495.1(bromine isotopes); 'H NMR (CD3OD): 3 8.29 (s, 1H), 7.66 (s, 1H), 7.54 (d, J= 2.8 Hz, 1H), 7-16 (d, J= 6.0 Hz, 1H), 6.96 (d, J= 4.8 Hz, 1H), 3.67-3.81 (t, 4H), 3.37 (s, 2H), 3.23-3.27 (m, 2H), 1.87-1.96 (t, 4H), 1.44 (s, 9H). 19F NMR(CD3OD): 3 -119.01. Intermediates 12-19. 15          The following intermediates were prepared according to the procedure described for Intermediate 11. Table 2. Intermediates 12-19 Int. No. Name Structural formula Yield Mass peak(s) (M+H)+ Rf value or Rt 12 7-(5-(2,6-dichloro-4-fluorophenox y)pyrimidin- 4-yl)-2,7-diazaspiro[4.4 ] nonane-2-carboxylate Z^N-Boc . V X. ,0. X jlX 80% 483.0, 485.0 0.775 in LCMS method C 2024202700   24 Apr 2024 Int. No. Name Structural formula Yield Mass peak(s) (M+H)+ Rf value or Rt 13 tert-butyl-6 -(5-(2-chloro-4-fluorophenox y)pyrimidin-4-yl)-2,6-diazaspiro[3.4 ]octane-2-carboxylate Boc X Cl         N F. A JX X Yj O 86% 467.3, 469.3 1.023 min in LCMS method C 'H NMR (CDCh): 3 8.44 (s, 1H), 7.83 (s, 1H), 7.00-7.10 (m, 1H), 6.45-6.55 (m, 1H), 3.55-3.90 (m, 4H), 3.20-3.50 (m, 4H), 1.80-2.00 (m, 4H), 1.45 (s, 9H).19F NMR: (CDCh 400 MHz): d -133.24 - -133.47, -140.23 - -140.44. 14 tert-butyl 7-(5-(4-fluoro-2-(trifluorometh yl)phenoxy)p yrimidin-4-yl)-2,7-diazaspiro[4.4 ]nonane-2-carboxylate >^n^Boc jVy5 85% 483.1 0.821 min in LCMS method C 'H NMR (CD3OD): d 8.30-8.40 (m, 1H), 7.80 (s, 1H), 7.55 (dd, J= 8.0 2.8 Hz, 1H), 7.36-7.40 (m, 1H), 6.917.00 (m, 1H), 3.70-3.88 (m, 2H), 3.55-3.69 (m, 2H), 3.323.50 (m, 2H), 3.15-3.29 (m, 2H), 1.84-2.00 (m, 4H), 1.45 (d, J= 3.6 Hz, 9H).19F NMR: (CD3OD): d -63. 9 - -63.53, -120.02--120.32. 15 tert-butyl 7-(5-(2-chloro- 4- (trifluorometh yl)phenoxy) pyrimidin-4-yl)-2,7-diazaspiro[4.4 ]nonane-2-carboxylate Boc Y Cl         N Xj Xj f3c^^ 70% 499.3, 502.3 (chlorin e isotopes ) 0.819 min in LCMS method E XH NMR (CDCh): 3 8.49 (s, 1 H), 7.94 (s, 1 H), 7.76 (s, 1 H), 7.47 (d, J= 8.4 Hz, 1 H), 6.80-6.82 (m, 1 H), 3.653.76 (m, 2 H), 3.57-3.60 (m, 2 H), 3.41-3.47 (m, 2 H), 3.23-3.32 (m, 2 H), 1.85-1.92 (m, 4 H), 1.46 (s, 9 H).19F NMR: (CDCh): 8 -62.09. 2024202700   24 Apr 2024 Int. No. Name Structural formula Yield Mass peak(s) (M+H)+ Rf value or Rt 16 tert-butyl 7(5-(2,4-di chi or ophen oxy)pyrimidi n-4-yl)-2,7-diazaspiro[4.4 ]nonane-2-carboxylate ^n^Boc A. A. Xj Xj 94% (M+H)+ = 464.9, 466.9 (chlorin e isotopes ) 0.788 min in LCMS method C 'H NMR (CDCh): 3 8.44 (s, 1H), 7.84 (s, 1H), 7.48 (s, 1H), 7.19 (d, J= 8.4 2.4 Hz, 1H), 6.72 (d, J= 8.0 Hz, 1H), 3.60-3.80 (m, 4H), 3.25-3.46 (m, 4H), 1.87-1.93 (m, 4H), 1.46 (s, 9H). 17 tert-butyl7-(5-(2-bromo-4,6-difluoropheno xy)pyrimidin-4-yl)-2,7-diazaspiro[4.4 ]nonane-2-carboxylate ^n-Boc B A A A jq A 90% (M+H)+ = 513.1, 515.1 (bromin e isotopes ) 0.762 min in LCMS method C 18 tert-butyl7-(5-(2-bromo-4,5-difluoropheno xy)pyrimidin-4-yl)-2,7-diazaspiro[4.4 ]nonane- 2-carboxylate ^n^Boc B Q A. xx A XX A F'^y    xhr F 90% (M+H)+ = 510.9, 512.9 (bromin e isotopes ) 0.823 min in LCMS method C 19 tert-butyl 7-(5-(2-chloro- 3- (tri fluorometh yOphenoxy) pyrimidin-4-yl)-2,7-diazaspiro [4.4]nonane-2-carboxylate o Z=\ z—G  z A / X / / o o— o LL? 74% (M+H)+ = 499.3, 501.3 (chlorin e isotopes ) 1.060 min in LCMS method D 'H NMR (CD3OD): 3 8.38 (s, 1 H), 7.86 (s, 1 H), 7.477.60 (m, 2 H), 7.18 (s, 1 H), 3.80-3.84 (m, 2 H), 3.61-3.67 (m, 2 H), 3.44-3.52 (m, 2 H), 3.24-3.27 (m, 2 H), 1.891.99 (m, 4 H), 1.46-1.48 (m, 9 H). 19F NMR (CD3OD): 3 -63.71 (m, 3 F). 2024202700   24 Apr 2024 Intermediate 20. tert-butyl 6-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,6- diazaspiro [3.3] heptane-2-carboxylate Boc I N 5          To a solution of 5-(2-bromo-4-fluorophenoxy)-4-chloropyrimidine (Intermediate 1, 5.55 g, 18.4 mmol) in CH3CN (80 mL) was added tert-butyl 2,6-diazaspiro[3.3]heptane-2-carboxylate (3.62 g, 18.4 mmol) and Na2CO3 (3.89 g, 36.74 mmol). The mixture was stirred at 90-95 °C for 16 h. The mixture was filtered and the filtrate was concentrated. The residue was purified by silica gel column chromatography 10 (petroleum ether:ethyl acetate = 0:1) to give tert-butyl 6-(5-(2-bromo-4- fluorophenoxy)pyrimidin-4-yl)-2,6-diazaspiro[3.3]heptane-2-carboxylate as a yellow solid. Yield: 6.5 g; HPLC method C: Rt = 0.742 min, (M+H)+ = 465.0, 467.0 (bromine isotopes). 15 Intermediates 20a-25. The following intermediates were prepared according to the procedure described for Intermediate 20. Table 3. Intermediates 20a-25 Int. No. Name Structure Yield Mass peak(s) (M+H)+ Rf value or Rt 20a tert-butyl 6-(5-(2-chloro-4-fluorophenoxy )pyrimidin-4-yl)-2,6-diazaspiro[3.3] heptane-2-carboxylate Boc I N Cl         N / J XJ 70% 421.1, 423.1 0.701 min in LCMS method C 2024202700   24 Apr 2024 Int. No. Name Structure Yield Mass peak(s) (M+H)+ Rf value or Rt 21 tert-butyl(2-(5-(2-bromo-4-fluorophenoxy ) pyrimidin-4-yl)-2-azaspiro [3.3]heptan-6-yl)carbamate NHBoc Br XX YX 76% 478.9, 480.9 0.696 min in LCMS method C 22 2-(5-(2-bromo-4-fluorophenoxy )pyrimidin-4-yl)-2-azaspiro[3.3]h eptan-6-one O N 55 378.1, 380.1 0.721 min in LCMS method C 23 tert-butyl 2-(5-(2-bromo-4-fluorophenoxy ) pyrimidin-4-yl)-2,7-diazaspiro[3.5] nonane-7-carboxylate Boc l Br       NZ Y. ± Xj Tj 82% 493.0, 495.0 0.696 min in LCMS method C 24 tert-butyl2-(5-(2-bromo-4-fluorophenoxy ) pyrimidin-4-yl)-2,6-diazaspiro[3.4] octane-6-carboxylate Boc Br        N fj Yj 90% 478.9, 480.9 0.725 min in LCMS method C 24A tert-butyl2-(5-(2-bromo-4-fluorophenoxy ) pyrimidin-4-yl)-2,6-diazaspiro[3.4] octane-6-carboxylate Boc g Cl         N Xj Xj 90% 435.1 437.1 0.713 min in LCMS method C 2024202700   24 Apr 2024 Int. No. Name Structure Yield Mass peak(s) (M+H)+ Rf value or Rt 25 tert-butyl6-(5-(2-bromo-4-fluorophenoxy ) pyrimidin-4-yl)-2,6-diazaspiro[3.4] octane-2-carboxylate 0 'oo 0 0 78% 479.0, 481.0 0.716 min in LCMS method C Intermediate 26. 2-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-2,7- diazaspiro [4.4] nonane Step 1: tert-butyl 7-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)- 2,7-diazaspiro[4.4]nonane-2-carboxylate To a suspension of tert-butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)- 10 2,7-diazaspiro[4.4]nonane-2-carboxylate (Intermediate 11, 200 mg, 0.40 mmol), (4-isopropylpyrimidin-5-yl)boronic acid (130 mg, 0.80 mmol) and K3PO4 (170 mg, 0.80 mmol) in dioxane (6 mL) and H2O (2 mL) was added Sphos palladacycle (14.4 mg, 0.02 mmol) under N2 atmosphere and the mixture was stirred at 90 °C for 16 h. The reaction mixture was washed with water (80 mL) and extracted with EtOAc (3 x 50 mL), the 15 organic layers were dried over anhydrous Na2SO4, filtered, and concentrated under 2024202700   24 Apr 2024 reduced pressure. The residue was purified by preparative TLC on silica gel (petroleum ether: EtOAc = 1: 1, Rf = 0.25) to give tert-butyl 7-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4] nonane-2-carboxylate as a white solid. Yield: 110 mg; HPLC method C: Rt = 0.759 min; (M+H)+ = 535.2. 5 Step 2: 2-(5-(4-jluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy) pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane To a solution of tert-butyl 7-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (100 mg, 1.87 10 mmol) in CH2Q2 (3 mL) was added TFA (1 mL). The mixture was stirred at 20-25 °C for 2 h. Then the reaction mixture was neutralized with NH3-H2O (pH = 8) and washed with water (80 mL) and extracted with CH2Q2 (3 * 50 mL). The organic layers were dried over anhydrous Na2SO4, filtered, and concentrated in vacuo to give crude 2-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)- 2,7-diazaspiro[4.4]nonane as a 15 yellow solid which was used in the next step without further purification. Yield: 90 mg; HPLC method C: Rt = 0.575 min; (M+H)+ = 435.2. Intermediates 27-32. The following intermediates were prepared according to the procedure described 20 for Intermediate 26. Table 4. Intermediates 27-32 Int No. Name Structure Yield Mass peak(s) (M+H)+ Rf value or Rt 27 2-(5-(4-fluoro-2-(4- isopropylpyrimidin -5-yl)phenoxy) pyrimidin-4-yl)-2,6- diazaspiro[3.3]hept ane >=\   )= z (W Xi—y   ^_z O Cb2^22 59% 407.0 0.566 min in LCMS method C 2024202700   24 Apr 2024 Int No. Name Structure Yield Mass peak(s) (M+H)+ Rf value or Rt 28 (6-(5-(4-fluoro-2-(4- isopropylpyrimidin -5-yl)phenoxy) pyrimidin-4-yl)-2,6- diazaspiro[3,4]octa ne ,—NH N^N  !— N 90% 421.2 1.941 min in LCMS method D 'H NMR (MeOD): 3 9.12 (s, 1 H), 8.63-8.65 (m, 1 H), 8.26 (s, 1 H), 7.77 (s, 1 H), 7.25-7.30 (m, 2 H), 7.027.05 (m, 1 H) 3.58-3.74 (m, 8 H), 3.09-3.14 (m, 1 H), 2.05-2.16 (m, 2 H), 1.24 (d, J = 6.8 Hz, 6 H).19F NMR (MeOD): 3 -120.40. 29 2-(5-(4-fluoro-2-(4- isopropylpyrimidin -5-yl)phenoxy) pyrimidin-4-yl)-2-azaspiro[3.3]heptan -6-amine nh2 N^N   >< Ji J <> N । Xj u 74% 421.0 0.565 min in LCMS method C 30 2-(5-((5-fluoro-2'-isopropyl-[l,l'-biphenyl]-2-yl)oxy) pyrimidin- 4-yl)-2,6-diazaspiro[3.3] heptane H N ^IT   N I JL d. X Xj o NT 78% 405.1 0.617 min in LCMS method C 31 2-((4-(2,7-diazaspiro[4.4]non an-2-yl)pyrimidin-5-yl)oxy) -2-cyclopropyl-5'- fluoro-[l,l'- biphenyl]-4-carbonitrile CN 1        X NH vX x Xj yx 77% 456.2 0.639 min in LCMS method C 2024202700   24 Apr 2024 Int No. Name Structure Yield Mass peak(s) (M+H)+ Rf value or Rt 31a 2-(5-(4-fluoro-2-(1-isopropyl-lH-pyrazol-5-yl)phenoxy) pyrimidin-4-yl)-2,7- diazaspiro[4.4]non ane / Z"z o ^Z I 70% 423.2 0.539 min in LCMS method C 31b 2-(5-(4-fluoro-2-(4- isopropylpyrimidin -5- yl)phenoxy)pyrimi din-4-yl)-2,7-diazaspiro[3.5]non ane X Z X z—\  z o Z—A   \ A 58 435.2 0.551 min in LCMS method C 31c 2-(5-(2-(2-cyclopropylpyridin -3-yl)-4-fluorophenoxy) pyrimidin-4-yl)-2,6- diazaspiro[3.3]hept ane H N J <> A0?; 50% 404.2 0.532 min in LCMS method C 32 2-((4-(2,6-diazaspiro[3.3]hept an-2-yl)pyrimidin-5-yl)oxy)-2-cyclopropyl-5'-fluoro-[l,l'-biphenyl]-4-carbonitrile N II            H N Xj UJ 49% 428.0 0.615 min in in LCMS method C Intermediate 33. 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzamide 2024202700   24 Apr 2024 Step 1. tert-butyl 7-(5-(4-fluoro-2-(methoxycarbonyl)phenoxy)pyrimidm-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate 5          To a solution of tert-butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7- diazaspiro[4.4]nonane-2-carboxylate (Intermediate 11, 9.5 g, 19.31 mmol) and Pd(dppf)C12 (7.1 g, 9.66 mmol) was added in EtsN (13.4 mL) and MeOH (100 mL). Then the reaction mixture was stirred at 65 °C under CO (50 Psi) for about 16 h. The reaction was filtered through Celite and concentrated under reduced pressure to afford the residue 10 which was purified by column chromatography on silica gel (eluting with DCM: MeOH = 1: 0 ~ 10:1) to afford tert-butyl 7-(5-(4-fluoro-2-(methoxycarbonyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate as brown oil. Yield: 9.0 g; LC-MS method E: Rt = 0.914 min; (M+H)+ = 473.2. 15 Step 2. 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5- yl)oxy)-5-fluorobenzoic acid To a solution of tert-butyl 7-(5-(4-fluoro-2- (methoxycarbonyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate 2024202700   24 Apr 2024 (3.3 g, 6.99 mmol) in MeOH (30 mL), THF (30 mL) and H2O (10 mL) was added KOH (0.78 g, 13.98 mmol). The mixture was stirred at 13-23 °C for 16 h. The mixture was concentrated, and adjusted to pH = 3-4 with aqueous HC1 (3 mol / L). The mixture was extracted with EtOAc (3 x 50 mL), and the combined organic layers were washed with 5 brine (50 mL), dired over Na2SO4, filtered and concentrated to give crude 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluorobenzoic acid as a brown solid, which was used directly without further purification. Yield: 3.2 g; LCMS Method C: Rt = 0.702 min, (M+H)+ = 459.0. 'H NMR (DMSO-d6): d 8.30 (s, 1 H), 7.39-7.69 (m, 3 H), 6.95-7.05 (m, 1 H), 3.60-3.72 (m, 5 H), 3.17 (s, 3 H), 1.77-1.88 10   (m, 4H), 1.38 (s, 9 H). 19F NMR (DMSO-d6): d-119.13. Step 3. tert-butyl 7-(5-(4-fluoro-2-isopropyl(methyl)carbamoyl)phenoxy)pyrimidin-4-yl)- 2,7-diazaspiro[4.4]nonane-2-carboxylate 15           To a solution of 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[4.4]nonan-2- yl)pyrimidin-5-yl)oxy)-5-fluorobenzoic acid (2.9 g, 5.45 mmol) and N-methylpropan-2-amine (0.6 g, 8.18 mmol) in DCM (100 mL) was added HATU(3.1 g, 8.18 mmol) and DIPEA (2.1 g, 16.3 mmol). The mixture was stirred at 13-21 °C for 16 h. The mixture was concentrated, and the residue was purified by neutral preparative HPLC to give tert- 20 butyl 7-(5-(4-fluoro-2-isopropyl(methyl)carbamoyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate. Yield: 2.1 g; LCMS method E: Rt = 0.731 min (M+H)+= 514.1. 1HNMR(DMSO-d6): b 8.30-8.33 (m, 1 H), 7.77-7.82 (m, 1 H), 7.197.29 (m, 2 H), 6.87-6.97 (m, 1 H), 4.67 (s, 1 H), 3.56-3.78 (m, 6 H), 3.15-3.17 (m, 2 H), 2.67-2.83 (m, 3 H), 1.79-1.84 (m, 4 H), 1.38 (s, 9 H), 1.06-1.11 (m, 6 H). 19F NMR 25 (DMSO-d6): ¢5-111.36. 2024202700   24 Apr 2024 Step 4. 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzamide To a solution of tert-butyl 7-(5-(4-fluoro-2-(isopropyl(methyl)carbamoyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2- 5 carboxylate (1 g, 1.95 mmol) in anhydrous DCM (10 mL) was added HCl-MeOH (2 mL, 4 mol / L in MeOH) slowly at 0 °C under N2. The reaction was stirred at 17-23 °C for 16 h. The mixture was adjusted to pH = 11—12 with aq. NaOH (1 mol / L) then was extracted with EtOAc (50 mL x 3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, filtered, and concentrated under reduced pressure to give 10   crude 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N- methylbenzamide as a brown solid. Yield: 0.8 g (95% crude); LCMS method C: Rt = 0.508 min, (M+H)+ = 414.0. Intermediates 35-39. 15          The following intermediates were prepared according to the procedure provided for Intermediate 33. Table 5. Intermediates 35-39 Int. No. Name Structure Yield Mass peak(s) (M+H) + Rf value or Rt 35 2-((4-(2,6-diazaspiro[3.4 ]octan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzam ide T1 ---- / =\ Z- \ O €$-Xi 77% 400.0 0.420 min in LCMS method C 36 2-((4-(2,7-diazaspiro[3.5 ]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N- / =\  z— \ 0 81% 414.3 0.827 min in LCMS method F 2024202700   24 Apr 2024 Int. No. Name Structure Yield Mass peak(s) (M+H) + Rf value or Rt methylbenzam ide 'H NMR (CD3OD): 3 8.22-8.27 (m, 1H), 7.70-7.80 (m, 1H), 6.94-7.22 (m, 3H), 4.77-4.79 (m, 1H), 3.90-4.01 (m, 4H), 2.77-3.31 (m, 7H), 1.84-1.86 (m, 4H), 1.15-1.28 (m, 6H). 19F NMR (CD3OD): 3 -115.01. 37 2-((4-(2,6-diazaspiro[3.4 ]octan-6-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzam ide ^-NH 1             N । JL ,0. X Xj O 54% 400.2 1.850 min in LCMS Method D 'H NMR (CD3OD): 3 8.25-8.35 (m, 1 H), 7.75-7.91 (m, 1 H), 7.15-7.25 (m, 2 H), 6.85-7.00 (m, 1 H), 3.60-4.05 (m, 9 H), 2.80-3.00 (m, 3 H), 2.15-2.25 (m, 2 H), 1.00-1.30 (m, 6H). 19F NMR (CD3OD): <5-120.13 --120.73. 38 2-((4-(6-amino-2-azaspiro[3.3]h eptan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzam ide nh2 1 X \    -O   \ / 1             N / V Xj XX ^NF 37% 399.8 1.45 min in LCMS Method D 39 ((4-(2,6-diazaspiro[3.3 ]heptan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzam ide H N 1         1                  N JO Jo 35% 386.1 1.42 min in LCMS Method D Intermediate 40. 2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde 2024202700   24 Apr 2024 To a suspension of 2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbonitrile (10 g, 57.75 mmol) in HCO2H (187 mL) and H2O (63 mL) was added Ni-Al alloy (6.19 g,144.38 mmol) in portions. Then the mixture was stirred at 90 °C for 16 h. The reaction 5 mixture was filtered and the filtrate was washed with EtOH and concentrated under reduced pressure. The residue was washed with water (150 mL) and filtered. The filter cake was dried under reduced pressure to give 2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde as a grey white solid. Yield: 9.1 g (97.2%); LCMS method D: Rt = 1.404 min, (M+H)+ = 163.0. 'H NMR (CD,OD): 3 9.87 (s, 1H), 7.65 (dd, J= 8.4, 1.2 Hz, 1H), 10   7.55 (s, 1H), 7.19 (d,J= 8.0 Hz, 1H). Intermediate 41. 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide Step 1. Methyl 5-fluoro-2-methoxybenzoate COOMe X ax To a solution of 5-fluoro-2-hydroxybenzoic acid (100 g, 641 mmol) in acetone (1000 mL) was added K2CO3 (190 g, 1380 mmol) and Mel (268.3 g, 1890 mmol). The mixture was stirred at 50 °C for 16 h. The mixture was filtered and concentrated under 20 reduced pressure. The residue was mixed with EtOAc (500 mL) and washed with H2O (3 x 300 mL). The organic layer was then dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with petroleum ether:ethyl acetate = 20:1 to afford methyl 5-fluoro-2-methoxybenzoate. Yield: 78 g (66%). XHNMR (CDCL): 3 7.50 (dd, J 2024202700   24 Apr 2024 = 3.6 Hz, 8.8 Hz, 1H), 7.17-7.18 (m, 1H), 6.92 (dd, J= 4.0 Hz, 8.8 Hz 1H), 3.89 (s, 3H), 3.88 (s, 3H). Step 2. 5-fluoro-2-methoxybenzoic acid COOH X ,0 To a solution of methyl 5-fluoro-2-methoxybenzoate (25 g, 135.9 mmol) in MeOH (250 mL) and H2O (50 mL) was added KOH (25 g, 446.4 mmol). The mixture was stirred at 60 °C for 3 h. The mixture was then adjusted to pH 3-4 by 2N HC1 solution and concentrated to remove MeOH under reduced pressure. The residue was mixed with 10 EtOAc (200 mL) and washed with H2O (2 x 200 mL). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to afford crude 5-fluoro-2-methoxybenzoic acid as a white solid, which was used for next step without further purification. Yield: 23 g. 15 Step 3. 5-fluoro-N,N-diisopropyl-2-methoxybenzamide To a solution of 5-fluoro-2-methoxybenzoic acid (20 g, 117.6 mmol) and diisopropylamine (23.8 g, 235.6mmol) in anhydrous CH2CI2 (300 mL) was added DIEA (22.8 g, 176.7 mmol) and HATU (53.6 g, 141.4 mmol) at 0 °C. The mixture was stirred 20 at 25 °C for 16 h. The mixture was then washed with H2O (3 x 200 mL). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with petroleum ether:ethyl acetate = 5:1 to afford 5-fluoro-N,N-diisopropyl-2-methoxybenzamide as a white solid. Yield: 22 g. LCMS method C: Rt value: 0.785 min, 25   (M+H)+ = 254.0. 2024202700   24 Apr 2024 Step 4. 5-fluoro-2-hydroxy-N,N-diisopropylbenzamide To a solution of 5-fluoro-N,N-diisopropyl-2-methoxybenzamide (15 g, 59.3 mmol) in anhydrous CH2CI2 (250 mL) was added with BBr3 (11 mL, 116.6 mmol) 5 dropwise at-70 °C. The mixture was stirred at 5 °C for 16 h. The reaction mixture was quenched with MeOH (30 mL) slowly at -78 °C and adjusted to pH 7-8 with sat. NaHCOs solution. The mixture was extracted with EtOAc (2 x 300 mL). The combined organic layers were dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel 10 eluting with petroleum ether:ethyl acetate = 4:1 to afford 5-fluoro-2-hydroxy-N,N-diisopropylbenzamide as a white solid. Yield: 11g. LCMS method C: Rt = 0.744 min; (M+H)+ = 240.0. Step 5. 5-fluoro-N,N-diisopropyl-2-(pyrimidin-5-yloxy)benzamide To a solution of 5-fluoro-2-hydroxy-N,N-diisopropylbenzamide (11.0 g, 46.0 mmol) and 5-bromopyrimidine (21.8 g, 138.0 mmol) in anhydrous DMF (300 mL) was added CS2CO3 (45.0 g, 138.0 mmol). The mixture was stirred at 130 °C for 16 h. The mixture was added to EtOAc (500 mL) and washed with H2O (3 x 300 mL). The organic 20 layer was dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with petroleum ether:ethyl acetate = 3:1 to afford 5-fluoro-N,N-diisopropyl-2-(pyrimidin-5- 2024202700   24 Apr 2024 yloxy)benzamide as a white solid. Yield: 14 g (97%) LCMS method C: Rt = 0.731 min; (M+H)+= 317.9. Step 6. 5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidine-l-oxide To a solution of 5-fluoro-N,N-diisopropyl-2-(pyrimidin-5-yloxy)benzamide (14 g, 44.2 mmol) in anhydrous CH2Q2 (400 mL) was added m-CPBA (27 g, 132.7 mmol). The mixture was stirred at 10 °C for 16 h. The reaction mixture was quenched with sat. Na2SO3 solution (200 mL) and washed with NaHCO, (2 x 200 mL). The organic layer 10 was dried over anhydrous Na2CO3, filtered, and concentrated under reduced pressure to afford crude 5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidine 1-oxide as a pale yellow solid, which was used for next step without further purification. Yield: 16 g (109%). LCMS method C: Rt = 0.705 min, (M+H)+ = 333.9. 15 Step 7. 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide To a solution of EtsN (7.3 g, 72.3 mmol) in CHCL (30 mL) was added POCI3 (12.5 g, 81.7 mmol) at 0 °C. Then the mixture was added to a solution of 5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidine-l-oxide (16.0 g, 48.0 mmol) in CHCL (270 mL) slowly at 0 °C. The mixture was stirred at 65 °C for 16 h. The mixture 20 was then slowly added to a sat. NaHCO, solution (500 mL) and the pH was adjusted to 78 by sat. NaHCO, solution. The mixture was extracted with ethyl acetate (2 x 300 mL). The combined organic layers were dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with petroleum ether:ethyl acetate = 5:1 to afford 2 25 ((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (6 g) as a yellow solid. HPLC method C: Rt = 0.735 min, (M+H)+ = 351.9. 'H NMR (CDCh): b 8.71 (s, 1H), 8.21 (s, 1H), 7.02-7.12 (m, 3H), 3.73-3.80 (m, 1H), 3.46-3.53 (m, 1H), 1.49 (d, J= 2024202700   24 Apr 2024 6.8 Hz, 3H), 1.34 (d, 7= 6.8 Hz, 3H), 1.26 (d, 7= 6.4 Hz, 3H), 1.14 (d, 7= 6.8 Hz, 3H). 19F NMR (CDCh): ¢5-114.5. Intermediate 41a. 5   2-((4-(2,6-diazaspiro [3.3] heptan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N- diisopropylbenzamide The title compound was synthesized from Intermediate 41 and tert-butyl 2,6-diazaspiro[3.3]heptane-2-carboxylate by method described for preparing Intermediate 20. 10 LCMS- Method C: 0.620 min, (M+H)+= 413.2. Intermediates 41b-41f. The following intermediates were prepared according to the procedure described for Intermediates 41 and 41a. 15                             Table 6. Intermediates 42b-42f Int. No. Name Structure Yield Mass peak(s) Rf value or Rt 41b 2-((4-(2,6-diazaspiro[3.4] octan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropyl benzamide / —NH \      \z 1         1                   N / X. Xj o 77% (M+H)+ = 428.0 0.520 min in LCMS method C 2024202700   24 Apr 2024 Int. No. Name Structure Yield Mass peak(s) Rf value or Rt 41c 2-((4-(2,6-diazaspiro[3.4] octan-6-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropyl benzamide I 54% (M+H)+ = 428.2 1.45 min in LCMS Method D 41d 2-((4-(6-amino-2azaspiro[3.3] heptan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropyl benzamide CM    A    .       Z^=\ x              /   \ Z— / 2 o 37% (M+H)+ = 428.2 1.42 min in LCMS Method D 41e 2-((4-(2,6-diazaspiro[3.4] octan-2-yl)pyrimidin-5-yl)oxy)-N-ethyl-5-fluoro-N-isopropylbenza mide / —NH .0  \Z T i        N Xj Xj 70% (M+H)+ = 414.1 0.512 min in LCMS method C 41f 2-((4-(2,7-diazaspiro[3.5] nonan-2-yl)pyrimidin-5-yl)oxy)-N-ethyl-5-fluoro-N-isopropylbenza mide H N T i        N / X Xj o 54% (M+H)+ = 428.2 1.36 min in LCMS Method D Intermediates 42 and 42c. l-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde and 2-(5-formyl-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl formate 2024202700   24 Apr 2024 Step 1. 4-((2-hydroxyethyl)amino)-3-nitrobenzonitrile H To a solution of 4-fluoro-3-nitrobenzonitrile (15 g, 90.4 mmol) and 2 5 aminoethanol (11.0 g, 180.7 mmol) in anhydrous DMF (600 mL) was added K2CO3 (37.4 g, 271.2 mmol) under N2, then the reaction mixture was stirred at 25 °C for 2 h. The reaction mixture was filtered and the filtrate was concentrated under reduced pressure. The residue was washed with H2O (100 mL) and the mixture was extracted with EtOAc (3 x 500 mL). The organic layers were washed with brine (20 mL), dried over anhydrous 10 Na2SO4, filtered, and concentrated to afford 4-((2-hydroxyethyl)amino)-3-nitrobenzonitrile. The residue was used for the next step without further purification as a yellow solid.Yield: 17.3 g. LCMS method E: Rt = 1.016 min; (M+H)+ = 207.9. Step 2. 3-amino-4-((2-hydroxyethyl)ammo)benzonitrile H OH 15                   NC^^^NHz To a solution of 4-((2-hydroxyethyl)amino)-3-nitrobenzonitrile (17.3 g, 83.6 mmol) in EtOH (800 mL) and H2O (400 mL) were added Fe (23.4 g, 418.0 mmol) and NH4CI (44.8 g, 836.0 mmol) under N2. The reaction mixture was stirred at 80 °C for 2 h. The reaction mixture was filtered and the filtrate was concentrated under reduced 20 pressure. The residue was dissolved in EtOAc (500 mL), washed with H2O (2 * 100 mL), brine (20 mL), dried over anhydrous Na2SO4, filtered, and concentrated to afford 3-amino-4-((2-hydroxyethyl)amino)benzonitrile. The residue was used for the next step 2024202700   24 Apr 2024 without further purification as a brown red solid. Yield: 11.6 g. LCMS Method D: Rt = 0.941 min; (M+H)+= 178.2. Step 3. 3-ammo-4-((2-((tert-butyldimethylsifyl)oxy)ethyl)ammo)benzonitrile H y ^^ OTBS 5                                NC''''^55^ To a solution of 3-amino-4-((2-hydroxy ethyl)amino)benzonitrile (11.6 g, 65.46 mmol) and tert-butylchlorodimethylsilane (11.84 g, 78.55 mmol) in anhydrous DMF (300 mL) was added imidazole (11.14 g, 163.65 mmol), then the reaction was stirred at 35 °C for 16 h. The reaction mixture was filtered and the filtrate was concentrated under 1 o reduced pressure. The reaction mixture was added to water (1000 mL) and extracted with EtOAc (3 x 500 mL). The organic layer was washed with brine (100 mL), dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to afford 3-amino-4-((2-((tert-butyldimethylsilyl)oxy)ethyl)amino)benzonitrile as a black oil, which was used for the next step without further purification. Yield: 25 g. LCMS method C: Rt = 15   0.878 min; (M+H)+= 292.1. Step 4. l-(2-((tert-butyldimethylsifyl)oxy)ethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbonitrile OTBS XX a° 20           To a solution of 3-amino-4-((2-((tert- butyldimethylsilyl)oxy)ethyl)amino)benzonitrile (14 g, 48.1 mmol) in anhydrous THF (400 mL) was added a solution of BTC (28.5 g, 96.2 mmol) at at 0 °C. Then EtsN (33 mL) was added dropwise to the mixture under at 0 °C. After addition, the reaction was stirred at 25 °C for 2 h. The reaction was poured into sat. aq. NaHCOs (500 mL), 25 extracted with EtOAc (3 x 300 mL). The organic layer was washed with brine, dried over anhydrous Na2SO4, filtered, and concentrated. The residue was purified by column 2024202700   24 Apr 2024 chromatograph on silica gel (eluting with petroleum ether: EtOAc = 5:1 to 1:1) to afford l-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbonitrile. Yield: 4.8 g (31%). LCMS method F: Rt = 1.378 min, (M+H)+ = 318.3 'H NMR (CDCh): d 10.06 (brs, 1 H), 7.31 (d, J= 8.4 Hz, 1 H), 7.16 (s, 1H), 7.11 (d, J= 8.0 5 Hz, 1 H), 3.94-3.96 (m, 2 H), 3.83-3.85 (m, 2 H), 0.67 (s, 9 H), -0.198 (s, 6H). Step 5. l-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde and 2-(5-formyl-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl formate 10           To a solution of l-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2-oxo-2,3-dihydro-lH- benzo[d]imidazole-5-carbonitrile (6.1 g, 19.2 mmol) in HCOOH (120 mL) and H2O (40 mL) was added Ni-Al (8.27 g, 96.2 mmol) under N2, then the reaction mixture was stirred at 90 °C for 16 h. The reaction mixture was then filtered and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatograph on silica gel 15 (eluting with DCM:MeOH = 10:1) to afford l-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde as a white solid and 2-(5-formyl-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl formate as a yellow solid. Intermediate 42. 2-(5-formyl-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl formate: Yield: 1.7 g (27%). LCMS method F: Rt = 0.858 min; (M+H)+ = 235.2 'H NMR 20 (DMSO-d6): b 11.27 (brs, 1 H), 9.87 (s, 1 H), 8.12 (s, 1H), 7.63 (dd, 7=8.0, 1.2 Hz, 1 H), 7.42 (s, 1H), 7.37 (d, J= 8.0 Hz, 1 H), 4.35-4.38 (m, 2 H), 4.12-4.14 (m, 2 H). Intermediate 42c. l-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde: Yield: 1.5 g (27%). LCMS method F: Rt = 0.788 min; (M+H)+ = 207.2 XH NMR (DMSO-d6): b 11.20 (brs, 1 H), 9.86 (s, 1 H), 7.60 (d, J= 8.0 Hz, 1 H), 7.40 (s, 25    1H), 7.31 (d, J= 8.0 Hz, 1 H), 4.86 (s, 1 H), 3.85-3.86 (m, 2 H), 3.63-3.65 (m, 2 H). Intermediate 42a. 2024202700   24 Apr 2024 l-(2-methoxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde The title product was prepared according to the procedure provided for Intermediate 41 starting with 2-methoxyethan-1 -amine. LCMS method F: Rt = 0.828 min; 5   (M+H)+= 221.2. Intermediate 42b. l-ethyl-2-oxo-2,3-dihydro-lH-benzo [d] imidazole-5-carbaldehyde 1 o          The title product was prepared according to the procedure provided for Intermediate 41, starting with ethylamine LCMS method F: Rt = 0.868 min; (M+H)+ = 191.2. Intermediate 43. 15 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzamide Step 1. 5-(2-bromo-4-fluorophenoxy)pyrimidme To a solution of 2-bromo-4-fluorophenol (6 g, 31.41 mmol) and 5 20 bromopyrimidine (5.7 g, 36.12 mmol) in anhydrous DMF (60 mL) was added CS2CO3 (30.7 g, 94.23 mmol) under N2. The reaction mixture was stirred at 130 °C for 16 h. The 2024202700   24 Apr 2024 reaction mixture was then filtered through a Celite and diluted with H2O (60 mL). The mixture was extracted with EtOAc (3 x 100 mL). The combined organic layers were washed with brine (3 x 100 mL), dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to give 5-(2-bromo-4-fluorophenoxy)pyrimidine as brown oil 5 which was used for next step directly. Yield: 6.5 g. LCMS method F: Rt = 0.969 min, (M+H)+= 269.1. Step 2. 5-fluoro-N-isopropyl-N-methyl-2-(pyrimidin-5-yloxy)benzamide 10          To a solution of 5-(2-bromo-4-fluorophenoxy)pyrimidine (5.5 g, crude, 20.45 mmol) and N-methylpropan-2-amine (12 g, 163.60 mmol) in anhydrous DMF (60 mL) was added Pd(dppf)C12 (3 g, 4.09 mmol) and EtsN (14 mL, 102.25 mmol, d = 0.726 g / mL) under CO atmosphere. The reaction was stirred at 80 °C for 20 h with 50 psi. The reaction was concentrated under reduced pressure to afford the residue which was 15 purified by column chromatography on silica gel (eluting with petroleum ether:EtOAc = 10:1 to 1:1) to give 5-fluoro-N-isopropyl-N-methyl-2-(pyrimidin-5-yloxy)benzamide as a brown oil. Yield: 3.5 g. LCMS method E: Rt = 0.700 min; (M+H)+ = 290.1. Step 3. 5-(4-fluoro-2-(isopropyl(methyl)carbamoyl)phenoxy)pyrimidine-l-oxide To a solution of 5-fluoro-N-isopropyl-N-methyl-2-(pyrimidin-5-yloxy)benzamide (1.8 g, 6.22 mmol) in anhydrous CH2Q2 (80 mL) was added m-CPBA (2.6 g, 15.55 mmol) under N2. The reaction was stirred at 11-20 °C for 30 h. The reaction was quenched with sat. NaHSOs solution (100 mL), extracted with CH2CI2 (3 x 100 mL). 25 The combined organic layers were washed with sat. NaHCOs solution (3 x 100 mL), 2024202700   24 Apr 2024 brine (3 * 100 mL), dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to give 5-(4-fluoro-2 (isopropyl(methyl)carbamoyl)-phenoxy)pyrimidine-l-oxide as a yellow solid which was used for next step directly.Yield: 1.6 g; LCMS method F: Rt =0.886 min; (M+H)+ = 306.1. Step 4. 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzamide To a solution of EtsN (1.1 mL, 7.86 mmol, d = 0.726 g / mL) and POCh (1.2 g, 7.86 mmol) in CHCh (5 mL) was added 5-(4-fluoro-2- 10 (isopropyl(methyl)carbamoyl)phenoxy)pyrimidine-l-oxide (1.6 g, 5.24 mmol) in CHCh (15 mL) slowly under N2. The mixture reaction was stirred at 65 °C for 16 h. The reaction mixture was then quenched with sat. NaHCCh solution (100 mL) and extracted with CH2CI2 (3 x 80 mL). The combined organic layers were washed with brine (3 x 80 mL), dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to 15 afford a residue which was purified by column chromatography on silica gel (eluting with petroleum ether: EtOAc = 20:1 to 3:1) to give 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzamide as a yellow solid. Yield: 470 mg . LCMS method E: Rt = 0.982 min; (M+H)+ = 324.2. 20 Intermediate 43a. 5-(2-(benzyloxy)-4-fluorophenoxy)-4-chloropyrimidine 2024202700   24 Apr 2024 The title product was synthesized according to the procedure described for Intermediate 43, starting from 2-(benzyloxy)-4-fluorophenol. LCMS method B: Rt = 2.13 min; (M+H)+ = 313.3 'H NMR (CDCh, 400 MHz): 3 8.66 (s, 1H), 8.03 (s, 1H), 7.32 - 7.27 (m, 3H), 7.19 - 7.15 (m, 3H), 6.84 - 6.81 (m, 1H), 6.76 - 6.71 (m, 1H), 5.02 5    (s, 2H). Intermediate 43b. tert-Butyl 7-(5-(4-fluoro-2-hydroxyphenoxy)pyrimidin-4-yl)-2,7- diazaspiro [4.4] nonane-2-carboxylate A solution of 5-(2-(benzyloxy)-4-fluorophenoxy)-4-chloropyrimidine (0.80 15 mmol) and tert-butyl 2,7-diazaspiro[4.4]nonane-2-carboxylate (218 mg, 0.96 mmol) in 'PrOH (2 mL) was added Hunig’s base (285 pL, 1.60 mmol). The reaction mixture was heated in the microwave reactor at 120 °C for 90 min. After cooling to RT, the mixture was diluted with H2O (10 mL) and extracted with EtOAc (3x15 mL). The organic layer was washed with brine, dried over Na2SO4, and concentrated under vacuum. The crude 20 product was purified by flash chromatography over silica gel eluting with 3% MeOH / DCMto afford 170 mg tert-butyl 7-(5-(2-(benzyloxy)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate as an orange oil. LCMS method B: Rt = 1.71 min; (M+H)+= 521.7. 2024202700   24 Apr 2024 Step 2. tert-butyl 7-(5-(4-fluoro-2-hydroxyphenoxy)pyrimidm-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate To a solution of tert-butyl 7-(5-(2-(benzyloxy)-4-fluorophenoxy)pyrimidin-4-yl)-5 2,7-diazaspiro[4.4]nonane-2-carboxylate (160 mg, 0.3 mmol) in MeOH (5 mL) was added palladium on carbon (5% dry basis, 33 mg, 30 pmol). The mixture was stirred at RT under the atmosphere of a hydrogen balloon for 3 h and filtered through a celite pad. The filtrate was then concentrated under reduced pressure. The crude product was used directly for the next step reaction without further purification. LCMS method B: Rt = 10   1.56 min; (M+H)+= 431. Intermediate 44. N-(2-(5-formyl-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl)acetamide NHAc 15 Step 1. N-(2-((4-cyano-2-nitrophenyl)amino)ethyl)acetamide H NHAc To a solution of 4-fluoro-3-nitrobenzonitrile (200 mg, 1.2 mmol) and N-(2-aminoethyl)acetamide (245 mg, 2.4 mmol) in anhydrous DMF (10 mL) was added K2CO3 (496 mg, 3.6 mmol) under N2, then the reaction mixture was stirred at 14-20 °C 20 for 4 h. The reaction mixture was filtered and the filtrate was concentrated under reduced pressure. The residue was then extracted with H2O (10 mL) and EtOAc (3 x 20 mL). The organic layers were washed with brine (20 mL), dried over anhydrous Na2SO4, filtered, and concentrated to afford N-(2-((4-cyano-2-nitrophenyl)amino)ethyl)acetamide. The residue was used for the next step without further purification as a yellow solid. Yield: 25   250 mg. LCMS method D: Rt = 1.256 min, (M+H)+ = 249.1. 2024202700   24 Apr 2024 Step 2. N-(2-((2-amino-4-cyanophenyl)ammo)ethyl)acetamide H y NHAc To a solution of N-(2-((4-cyano-2-nitrophenyl)amino)ethyl)acetamide (250 mg, 1.0 mmol) in EtOH (10 mL) and H2O (5 mL) was added Fe (280 mg, 5.0 mmol) and 5 NH4CI (530 mg, 10 mmol) under N2. The reaction mixture was stirred at 80 °C for 2 h. The reaction mixture was then filtered and the filtrate was concentrated under reduced pressure. The residue was extracted with H2O (10 mL) and EtOAc (20 mL). The organic layer was washed with brine (20 mL), dried over anhydrous Na2SO4, filtered, and concentrated to afford N-(2-((2-amino-4-cyanophenyl)amino)ethyl)acetamide. The 10 residue was used for the next step without further purification as a brown solid. Yield: 200 mg. LCMS method F: Rt = 0.992 min, (M+H)+ = 219.1. Step 3. N-(2-(5-cyano-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl)acetamide 15          To a solution of N-(2-((2-amino-4-cyanophenyl)amino)ethyl)acetamide (10 mg, 0.046 mmol) in anhydrous THF (4 mL) was added EtsN (0.5 mL), then a solution of BTC (27 mg, 0.092 mmol) in anhydrous THF (2 mL) was added dropwise to the mixture at 0 °C. After addition, the reaction mixture was stirred at 3-14 °C for 12 h. The reaction mixture was extracted with H2O (5 mL) and EtOAc (20 mL x 3). The organic layers were 20 washed with brine (20 mL), dried over anhydrous Na2SO4, filtered, and concentrated. The residue was purified by column chromatography on silica gel (eluting with CH2CI2: MeOH = 1:0 to 10:1) to afford N-(2-(5-cyano-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl)acetamide as a brown oil. Yield: 20 mg. LCMS method F: Rt = 1.175 min; (M+H)+ = 245.2. Step 4. N-(2-(5-formyl-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl)acetamide 2024202700   24 Apr 2024 To a solution of N-(2-(5-cyano-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl)acetamide (20 mg, 0.082 mmol) in HCOOH (3 mL) and H2O (1 mL) was added Ni-Al (35 mg, 0.41 mmol), then the reaction was stirred at 90 °C for 12 h. The reaction was filtered and the filtrate was concentrated under reduced pressure to afford N-(2-(5- 5 formyl-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-l-yl)ethyl)acetamide (15 mg, 92% purity, 75%). The residue was used for the next step without further purification as a brown solid. Yield: 15 mg. LCMS method F: Rt = Rt value: 0.773 min; (M+H)+ = 248.1. Intermediate 44a. 10 l-(2-(dimethylamino)ethyl)-2-oxo-2,3-dihydro-lH-benzo [d] imidazole-5-carbaldehyde The title product was synthesized according to the procedure described for Intermediate 44 starting with Nl,Nl-dimethylethane-l,2-diamine and 4-fluoro-3- 15 nitrobenzonitrile. LCMS method F: Rt = 0.773 min; (M+H)+ = 233.1. Intermediate 45. 3,3-dimethyl-2-oxoindoline-6-carbaldehyde 20          To a solution of 6-bromo-3,3-dimethylindolin-2-one (502 mg, 2.09 mmol) in DMF (10 mL) under N2 atmosphere was added Pd(OAc)2 (14 mg, 0.063 mmol), N-formyl saccharin (662 mg, 3.14 mmol), dppb (39 mg, 0.094 mmol), Na2CO3 (315 mg, 3.16 mmol) and EtsSiH ( 316 mg, 2.72 mmol). The resulting mixture was heated to 80 °C for 16 h. The reaction mixture was diluted with EtOAc, washed with H2O, brine, dried 25 over anhydrous Na2SO4, and filtered. The filtrate was then concentrated to dryness. The 2024202700   24 Apr 2024 residue was purified by flash chromatography to afford 70 mg of 3,3-dimethyl-2-oxoindoline-6-carbaldehyde. LCMS method B: Rt = 1.63 min; (M+H)+ = 190. Intermediate 46. 5 6-formyl-3-methyl-2-oxoindoline-3-carbonitrile NC . jQ>° H Step 1. Methyl 4-(2-cyano-l-ethoxy-l-oxopropan-2-yl)-3-nitrobenzoate CN <^y^~co2Et MeO2C^^^ NO2 To a 60% suspension of sodium hydride (2.0 g, 50 mmol) in dry DMF (50 mL) at 10   0 °C was added ethyl 2-cyanoacetate (5.33 mL, 50 mmol) dropwiseand the reaction mixture was stirred for an additional 30 min at 0 °C. To the resulting gray suspension was added methyl 4-fluoro-3-nitrobenzoate (7.97 g, 40 mmol) at 0 °C. The resulting deep red mixture was stirred at 0 °C for 30 min and warmed to RT over 2 h. The reaction mixture was cooled to 0 °C, and Mel (7.8 mL) was added, followed by KOtBu (8.4 g, 75 mmol). 15 After the addition, the mixture was stirred for 2 days at RT and subsequently quenched with aqueous NH4CI solution. The resulting mixture was then extracted with EtOAc twice. The organic layers were combined and washed with H2O and brine successively, and dried over anhydrous sodium sulfate, filtered, and concentrated. The residue was purified by flash-chromatography to afford methyl 4-(2-cyano-l-ethoxy-1 -oxopropan-2-20 yl)-3-nitrobenzoate. Yield 6.04 g. LCMS method B: Rt = 1.63 min. Step 2. Methyl 3-cyano-3-methyl-2-oxoindolme-6-carboxylate To a solution of methyl 4-(2-cyano-l-ethoxy-l-oxopropan-2-yl)-3-nitrobenzoate 25   (6.039 g, 19.72 mmol) in EtOH (60 mL) was added saturated aqueous NH4CI solution 2024202700   24 Apr 2024 (15 mL) and iron powder (5.803 g, 98.61 mmol). The mixture was heated to reflux overnight. The mixture was then cooled to RT and filtered through a short pad of Celite and subsequently washed with EtOAc. The filtrate was washed with H2O, brine, dried over anhydrous sodium sulfate, filtered, and concentrated. The residue was purified by 5 flash-chromatography to afford methyl 3-cyano-3-methyl-2-oxoindoline-6-carboxylate. Yield 4.404 g. LCMS method B: Rt = 1.07 min; (M+H)+ = 231. Step 3. 6-(Hydroxymethyl)-3-methyl-2-oxoindoline-3-carbonitrile 10          To a solution of methyl 3-cyano-3-methyl-2-oxoindoline-6-carboxylate (2.101 g, 9.12 mmol) in dry THF ( 40 mL) under N2 atmosphere was added a solution of LiBH4 (9.1 mL, 18.2 mmol), followed by MeOH (0.2 mL). The mixture was heated to reflux for 2 h and subsequently quenched with aqueous NH4CI solution. The mixture was then extracted twice with EtOAc. The organic layers were combined and washed with H2O 15 and brine successively, dried over anhydrous sodium sulfate, filtered, and concentrated. The residue was purified by flash-chromatography to afford 6-(hydroxymethyl)-3-methyl-2-oxoindoline-3-carbonitrile. Yield 1.42 g. LCMS method B: Rt = 0.79 min; (M+H)+= 203.1. 20 Step 4. 6-formyl-3-methyl-2-oxoindoline-3-carbonitrile To a solution of 6-(hydroxymethyl)-3-methyl-2-oxoindoline-3-carbonitrile (0.597 g, 2.95 mmol) in DCM was added active Mn02 (2.57 g, 29.56 mmol). The mixture was stirred at RT overnight and then filtered through a short pad of Celite. The filtrate was concentrated to remove solvent. The residue was purified by flash-chromatography to 25 afford 6-formyl-3-methyl-2-oxoindoline-3-carbonitrile. Yield 0.347 g. LCMS method B: Rt = 1.25 min, (M+H)+ = 201.1. Intermediate 47. N-((lr,4r)-4-formylcyclohexyl)methanesulfonamide 2024202700   24 Apr 2024 Step 1. Methyl (lr,4r)-4-(methylsulfonamido)cyclohexane-l-carboxylate A mixture of methyl (lr,4r)-4-aminocyclohexane-l-carboxylate hydrochloride (50 5 g, 0.259 mol) and EtsN (130.8 g, 1.295 mol) in anhydrous CH2CI2 (2000 mL) was stirred RT for 20 min. MsCl (29.8 g, 0.259 mol) was added dropwise at 0 °C under N2 and the mixture was stirred at 0 °C for 2 h. The DCM reaction mixture was washed with H2O (3 X 800 mL) and brine (800 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The mixture was purified by column chromatography on silica 10 gel eluting with petroleum ether: EtOAc = 2:1 to 1:1 (adding 25 mL of CH2CI2 in 1 L of petroleum ether / ethyl acetate for the eluent) to afford methyl (lr,4r)-4- (methylsulfonamido)cyclohexane-l-carboxylate (58 g, 89.5%) as a white solid. 'H NMR (CDCh): d 4.45 (d, J= 7.6 Hz, 1H), 3.69 (s, 3H), 3.29-3.23 (m, 1H), 2.98 (s, 3H), 2.242.13 (m, 1H), 2.11-2.09 (m, 2H), 2.05-2.02 (m, 2H), 1.55-1.51 (m, 2H), 1.29-1.26 (m, 15   2H). Step 2. N-((lr,4r)-4-formylcyclohexyl)methanesulfonamide Methyl (lr,4r)-4-(methylsulfonamido)cyclohexane-l-carboxylate (20 g, 85.11 20 mmol) in anhydrous toluene (500 mL) was stirred at 40 °C for 30 min under N2. The resulting solution was cooled to -70 °C (internal temperature). A solution of DIBAL-H (1 M in toluene, 180 mL, 180 mmol) was added dropwise within 110 min under N2 (keeping the internal temperature below -70 °C). After addition, the mixture was stirred vigorously at -70 °C for 4 h. MeOH (30 mL) was then carefully added dropwise over a 25   30 min period (keeping the internal temperature below -70 °C). After being stirred for 10 min, sat. Rochelle salt solution (600 mL) was added at -70 °C and the mixture was 2024202700   24 Apr 2024 warmed to RT. EtOAc (300 mL) was added and the mixture stirred at RT for 16 h. The mixture was separated and the aqueous layer was extracted with EtOAc (3 X 400 mL). The combined organic layers were washed with brine (3 X 500 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford crude N-5 ((lr,4r)-4-formylcyclohexyl)methanesulfonamide (19 grams) which was used for next step without further purification. 'H NMR (CDCL): 3 9.65 (s, 0.035H), 9.62 (s, 1H), 4.40-4.39 (m, 1H), 3.28-3.25 (m, 1H), 2.98 (s, 3H), 2.18-2.03 (m, 5H), 1.38-1.28 (m, 4H). 10 Step 3. Sodium (R)-hydroxy((lr,4R)-4-(methylsulfonamido)cyclohexyl)methanesulfonate SO3Na To a solution of crude N-((lr,4r)-4-formylcyclohexyl)methanesulfonamide (19 grams) in THF (200 mL) was added aq. NaHSOs solution (4 M, 110 mL) over a 10 min period at 45 °C. After being stirred at 45 °C for 30 min, the mixture was cooled to RT 15 and stirred for another 1 h. The resulting white precipitate was filtered and the filter cake was washed with THF (3 X 50 mL) and dried under high vacuum to afford sodium (R)-hydroxy((lr,4R)-4-(methylsulfonamido)cyclohexyl)methanesulfonate (16.5 g, 55% over Step 2-3) as a white solid, which was used for next step without further purification. 'H NMR (DMSO-de): 3 9.90 (s, 0.17H), 6.91 (d, J= 7.2 Hz, 1H), 4.98 (d, J= 5.2 Hz, 1H), 20   3.65 (t, J= 4.4 Hz, 1H), 2.97-2.95 (m, 1H), 2.89 (d, J= 6.8 Hz, 3H), 2.06-2.03 (m, 1H), 1.86-1.81 (m, 3H), 1.61 (brs, 1H), 1.23-1.06 (m, 4H). Step 4. N-((lr,4r)-4-formylcyclohexyl)methanesulfonamide To a mixture of sodium (R)-hydroxy((lr,4R)-4- 25 (methylsulfonamido)cyclohexyl)methanesulfonate (16.5 g, 53.4 mmol) in CH2CI2 (160 mL) was added aq. Na2CO3 solution (IM, 160 mL). The mixture was stirred at RT for 30 min. The mixture was separated and the aqueous layer was extracted with CH2CI2 (3 X 80 mL). The combined organic layers were washed with brine (300 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford crude N- 2024202700   24 Apr 2024 ((lr,4r)-4-formylcyclohexyl)methanesulfonamide (7.5 g, 69%) as a white solid, which was used for next step without further purification. 'H NMR (CDCh): d 9.66 (s, 0.021H), 9.62 (s, 1H), 4.38 (brs, 1H), 3.30-3.25 (m, 1H), 2.98 (s, 3H), 2.18-2.14 (m, 3H), 2.05-2.01 (m, 2H), 1.42-1.30 (m, 4H). 5 Intermediate 48. Methyl 2-((4-chloropyrimidin-5-yl)oxy)-5-fluorobenzoate Step 1: Ethyl 2-(2-bromo-4-fluorophenoxy)acetate To solution of 2-bromo-4-fluorophenol (250 g, 1.31 mol) in MeCN (2 L) was added K2CO3 (270 g, 1.97 mol) and ethyl 2-bromoacetate (219 g, 1.31 mol). The suspension was heated at 90 °C for 1.5 h. The mixture was filtered and the fitrate was concentrated to give crude ethyl 2-(2-bromo-4-fluorophenoxy)acetate as a brown oil, 15 which was used directly in next step (312 g); 'H NMR. (CDCh): d 7.32 (dd, J= 7.6, 3.2 Hz, 1 H), 6.95-6.97 (m, 1 H), 6.82 (dd, J= 8.8, 4.4 Hz, 1 H), 4.66 (s, 2 H), 4.27 (q, J= 7.2 Hz, 2 H), 1.31 (t, J= 7.2 Hz, 3 H); 'F NMR (CDCh): b -120.06 (s, IF). Step 2: 5-(2-Bromo-4-fluorophenoxy)-2-thioxo-2,3-dihydropyrimidin-4(lH)-one Br O 20                                                   H To a solution of ethyl 2-(2-bromo-4-fluorophenoxy)acetate (100 g) in anhydrous THF (2 L) was added ethyl formate (108 g) and NaH (20 g) at 0 °C. The mixture was stirred at 35-45 °C for 18 h. The solvent was removed under vacuum and anhydrous EtOH (2 L) and thiourea (25 g, 324.8 mmol) were added and the mixture was stirred at 2024202700   24 Apr 2024 90 °C for 16 h. The mixture was concentrated and diluted with water (2 L) and extrated with petroleum ether:ethyl acetate (10:1; 500 mL x 3). The aqueous layer was acidified to pH = 4 by aq. HC1 (IN, 200 mL) and a white solid was preciptated. The mixture was fitered and the resulting filter cake was dried to give crude 5-(2-bromo-4-fluorophenoxy)- 5 2-thioxo-2,3-dihydropyrimidin-4(lH)-one (62 g) as a white solid, which was used directly in the next step without purification; LCMS method C: Rt = 0.638 min; (M+H)+ = 316.9, 318.9 (chlorine isotopes). Step 3: 5-(2-Bromo-4-fluorophenoxy)pyrimidin-4-ol Br OH To a solution of 5-(2-bromo-4-fluorophenoxy)-2-thioxo-2,3-dihydropyrimidin-4(lH)-one (62 g) in anhydrous EtOH (1.5 L) was added Raney Ni (62 g), and the mixture was heated at reflux for 6 h. The solvent was removed under vacuum and anhydrous EtOH (2 L) was added. The mixture was filtered and the filtrate was concentrated to give 15 crude 5-(2-bromo-4-fluorophenoxy)pyrimidin-4-ol as a grey solid (55 g); LCMS method C: Rt = 0.62 min, (M+H)+ = 284.9, 287.0 (bromine isotopes). Step 4: Methyl 5-fluoro-2-((4-hydroxypyrimidin-5-yl)oxy)benzoate 20          To a solution of 5-(2-bromo-4-fluorophenoxy)pyrimidin-4-ol (60 g, 0.17 mol) in DMF (100 mL) and MeOH (150 mL) was added TEA (25.5 g, 0.252 mol) and Pd(dppf)C12 (12.4 g, 0.017 mol). The resulting reaction mixture was stirred under 50 PSI of CO at 80 °C for 24 h. The mixture was then concentrated, diluted with H2O (300 mL), and extracted with DCM / MeOH (10:1) (200 mL x 3). The combined organic layers were 25 dried over Na2SO4, filtered, and concentrated to give the crude product, which was washed with ethyl acetate (100 mL). The filter cake was dried to afford crude methyl 5- 2024202700   24 Apr 2024 fluoro-2-((4-hydroxypyrimidin-5-yl)oxy)benzoate as a brown solid (20 g, 45%); LCMS method C: Rt = 0.56 min; (M+H)+ = 264.9. Step 5: Methyl 2-((4-chloropyrimidin-5-yl)oxy)-5-fluorobenzoate 5          To a solution of crude methyl 5-fluoro-2-((4-hydroxypyrimidin-5-yl)oxy)benzoate (11 g, 42 mmol) in SOCL (5 mL) was added DMF (0.5 mL). The resulting mixture was heated at 70 °C for 2 h. The mixture was concentrated to give the residue which was dissolved into DCM (100 mL) and H2O (100 mL). The mixture was neutralized with saturated NaHCOs (50 mL). The separated organic layer was dried over Na2SO4, filtered, 10 and concentrated, and the residue was purified by chromatography column (petroleum ether: ethyl acetate = 5:1 -1:1) to afford methyl 2-((4-chloropyrimidin-5-yl)oxy)-5-fluorobenzoate as a brown solid (8.3 g, 57%); LCMS method C: Rt = 0.74 min; (M+H)+ = 283.5. 15 Intermediate 49. 5-Fluoro-2-(pyrimidin-5-yloxy)benzoic acid 20          A 100-L jacketed reactor was charged with 2-bromo-4-fluorophenol (11.00 kg, 57.59 moles), 5-bromopyrimidine (9.43 kg, 59.32 moles), cesium carbonate (24.39 kg, 74.87 moles), and DMA (66.00 L), and the mixture was heated to 115-125 °C over 2.5 h. The batch was then stirred at 120 °C over 4 days. The internal temperature of the batch was then adjusted to 20-30 °C. Once the batch was cooled it was partitioned between 25 deionized water (132.00 L) and MTBE (44.00 L) in a 250 L Schott reactor. The reactor contents were agitated at RT for 30 min. After this time, the agitation was stopped and 2024202700   24 Apr 2024 the layer separation was allowed to occur. The top organic layer was removed and placed in a separate container. A total of four MTBE extractions were performed. The MTBE extracts were combined and washed with 2 N sodium hydroxide (22.00 L), then by 0.5 M citric acid solution (11.00 L), and finally by 5 wt% sodium bicarbonate solution (11.00 5   L). The MTBE solution was concentrated using a rotary evaporator (25 in. Hg vacuum, 40 °C water bath). The residue was passed through a wiped film evaporator (WFE) system to remove volatiles (MTBE) and a portion of remaining 5-bromopyrimidine. The conditions for WFE distillation were as follows: the first pass - vacuum 10-15 in. Hg, wiper speed 600 rpm, jacket temperature 150-160 °C, addition rate 4 mL / min; the second 10 pass - vacuum 0.7 Torr, wiper speed 600 rpm, jacket temperature 160-170 °C, addition rate 4 mL / min. The product 5-(2-bromo-4-fluorophenoxy)-pyrimidine was isolated in 45% yield (7.15 kg) with HPLC purity 95.3% (ALIC). Step 2: Methyl 5-fluoro-2-(pyrimidin-5-yloxy)benzoate A 80-L jacketed stainless steel reactor was charged with palladium catalyst (Pd(dppf)C12 DCM complex) (1.00 kg, 1.22 moles) , 5-(2-bromo-4-fluorophenoxy)pyrimidine (8.54 kg, 31.59 moles), TEA (6.38 kg, 63.18 moles), and methanol (42.50 L). The reactor was purged with nitrogen (3 times up to 50 psig of 20 nitrogen pressure) and then with carbon monoxide gas (3 times up to 50 psig of carbon monoxide). The reactor internal temperature was adjusted to 65-75 °C over 75 min. Once at temperature, the vessel internal pressure was adjusted to 50 psig with carbon monoxide gas. The reactor contents were stirred at the specified temperature and pressure for at least 34 h. After this time, the reaction mixture was cooled to 15-25 °C 25 and was purged with nitrogen three times with 50 psig pressure to afford a methanolic solution containing methyl 5-fluoro-2-(pyrimidin-5-yloxy)benzoate. The batch was filtered over a Celite™ pad to remove the palladium catalyst. 2024202700   24 Apr 2024 Step 3: 5-Fluoro-2-(pyrimidin-5-yloxy)benzoic acid The methanolic solution containing compound methyl 5-fluoro-2-(pyrimidin-5-yloxy)benzoate from Step 2 was placed in a 100-L jacketed glass reactor and was diluted with water (17.00 L). After this, 50 wt% sodium hydroxide aqueous solution (10.11 kg, 5   126.36 moles) was added, keeping the batch internal temperature at 35-45 °C. Once the addition was complete, the temperature was adjusted to 35-45 °C, and the batch was stirred for at least 14 h. The reaction volume was decreased by vacuum distillation from 87 to 33 liters (27 in. Hg vacuum was achieved; at the end the batch temperature was 32.4 °C). The batch was then diluted with water (42.5 L), cooled to 20-30 °C, and was 1 o filtered through a Celite™ pad to remove the catalyst. The aqueous layer was extracted two times with MTBE (17 L). The batch was adjusted to pH = 2 using 6 M hydrochloric acid (about 17 L), keeping the internal batch temperature at 10-20 °C. Once the acid addition was complete, the batch was cooled to 0-10 °C and filtered over a polypropylene cloth using a filter / dryer. The filter cake was washed with water (17.00 L) and dried 15 under stream of nitrogen at 40-45 °C over several days until the water level was 0.3 wt% by KF analysis. The product was isolated in 102% yield (7.57 kg) with a HPLC purity of 97.5% (AUC) and 94 wt% purity by NMR analysis. Intermediate 50. 20 ((lr,4r)-4-(Ethylsulfonamido)cyclohexyl)methyl 4-methylbenzenesulfonate Step 1: Methyl (lr,4r)-4-(ethylsulfonamido)cyclohexane-l-carboxylate A solution of methyl (lr,4r)-4-aminocyclohexane-l-carboxylate hydrochloride 25   (120 g, 0.62 mol) and EtsN (346 mL, 2.48 mol) in anhydrous DCM (2.5 L) was stirred at 2024202700   24 Apr 2024 RT for 30 min. Ethanesulfonyl chloride (80.6 g, 0.63 mol) was added dropwise over 30 min to the reaction mixture at 0-5 °C. After addition, the mixture was stirred at 0 °C for 3 h. The mixture was quenched with water (250 mL) at 0 °C. After partition, the organic layer was washed with H2O (600 mL, 5 volumes) and 1 N HC1 (2 x 600 mL, 2x5 5 volumes), H2O (600 mL, 5 volumes) and brine (600 mL, 5 volumes), dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to afford crude methyl (lr,4r)-4-(ethylsulfonamido)cyclohexane-l-carboxylate (117.6 g, 76%) as a light yellow solid, which was used for the next step without further purification. 1H NMR (CDCL 400 MHz): 3 4.36 (d, J= 8.0 Hz, 1 H), 3.67 (s, 3 H), 3.29-3.22 (m, 1 H), 3.04 (q, 10 J= 7.6 Hz, 2 H), 2.25-2.21 (m, 1 H), 2.15-2.09 (m, 2 H), 2.08-2.01 (m, 2 H), 1.58-1.51 (m, 2H), 1.39-1.25 (m, 5 H). Step 2. N-((lr,4r)-4-(hydroxymethyl)cyclohexyl)ethanesulfonamide 15          To a solution of crude methyl (lr,4r)-4-(ethylsulfonamido)cyclohexane-l- carboxylate (100 g, 402 mmol) in anhydrous THF (1 L) was added LiAlH4 (403 mL, 403 mmol, 1 M in THF) dropwise at 0-5 °C under N2 over about 1 h. The mixture was then stirred at 0 °C for 2 h under N2. Additional LiAlH4 (40 mL, 40 mmol, 1 AT in THF) was then added to the reaction mixture. The mixture was stirred at 0 °C for 1 h under N2. The 20 mixture was quenched with 20% NaCl solution (20 mL) slowly at 0 °C and diluted with THF (500 mL, 5 volumes). The mixture was warmed to 15 °C and stirred for 15 min. The mixture was filtered and rinsed with THF (2 X 200 mL). The filter cake was suspended within THF (1 L, 10 volumes) for 30 min. The suspension was filtered and rinsed with THF (2 x 200 mL). The filter cake suspension and filtration was repeated 25 twice in THF (IL, 10 volumes), and was then rinsed with THF (2 x 200 mL). The combined filtrate was dried over anhydrous Na2SO4, concentrated under reduced pressure to afford crude N-((lr,4r)-4-(hydroxymethyl)cyclohexyl)ethanesulfonamide (72 g, 81%) as a white solid, which was used for the next step without further purification; 1H NMR (CDCL 400 MHz): 3 4.23 (d, J= 8.0 Hz, 1 H), 3.46 (t, J= 6.4 Hz, 2 H), 3.25-3.18 (m, 1 2024202700   24 Apr 2024 H), 3.04 (q, J= 7.6 Hz, 2 H), 2.11-2.07 (m, 2H), 1.88-1.84 (m, 2 H), 1.46-1.35 (m, 4 H), 1.29-1.24 (m, 2 H), 1.09-1.00 (m, 2 H). Step 3: ((lr,4r)-4-(Ethylsulfonamido)cyclohexyl)methyl 4-methylbenzenesulfonate 5          To a solution of crude N-((lr,4r)-4- (hydroxymethyl)cyclohexyl)ethanesulfonamide (30 g, 136 mmol) in anhydrous DCM (300 mL) was added TsCl (25.84 g, 136 mmol), DMAP (1.66 g, 13.6 mmol) and EtsN (41.2 g, 408 mmol). The mixture was stirred at 10 °C for 6 h under N2. The mixture was then quenched with H2O (200 mL). After partition, the organic layer was washed with 10 H2O (2 * 150 mL) and brine (150 mL), dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with petroleum ether / ethyl acetate = 1 / 0 ~ 2 / 1 to give ((lr,4r)-4-(ethylsulfonamido)cyclohexyl)methyl 4-methylbenzenesulfonate (37 g, 73%) as a white solid; XHNMR (CDCh 400 MHz): d 7.78 (d, J= 8.4 Hz, 2 H), 7.35 (d, J= 8.8 Hz, 2 H), 15   4.23 (d, J = 7.6 Hz, 1 H), 3.81 (d, J= 6.4 Hz, 2 H), 3.19-3.14 (m, 1 H), 3.01 (q, J= 7.6 Hz, 2 H), 2.46 (s, 3 H), 2.09-2.03 (m, 2 H), 1.79-1.74 (m, 2 H), 1.66-1.56 (m, 1 H), 1.35 (t, J =7.6 Hz, 3 H), 1.28-1.18 (m, 2 H), 1.09-1.01 (m, 2 H). Example 1. 20 5-fluoro-N,N-diisopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide (Racemic Mixture) 2024202700   24 Apr 2024 Step 1. tert-butyl 7-(5-(4-fluoro-2-(methoxycarbonyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate To a solution of tert-butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7- 5 diazaspiro[4.4]nonane-2-carboxylate (Intermediate 11, 900 mg, 1.82 mmol) and Pd(dppf)C12 (134 mg, 0.18 mmol) were added in EtsN (3 mL) and MeOH (20 mL). Then the reaction mixture was stirred at 65 °C under CO (50 psi) for about 16 h. The reaction mixture was filtered through a Celite pad, and concentrated under reduced pressure to afford the residue which was purified by column chromatography on silica gel (eluting 10 with di chloromethane: methanol = 1:0-0: 1) to afford tert-butyl 7-(5-(4-fluoro-2-(methoxycarbonyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate as a light yellow oil. Yield: 850 mg. LCMS method C: Rt = 0.739 min; (M+H)+ = 473.2. Step 2. 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidm-5-15 yl)oxy)-5-fluorobenzoic acid To a mixture of tert-butyl 7-(5-(4-fluoro-2-(methoxycarbonyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (850 mg, 1.79 mmol) andNaOH (143 mg, 3.58 mmol) was added MeOH (10 mL) and H2O (2 mL) under N2. The reaction mixture 20 was stirred at 21-27 °C for 12 h. The solvent was removed under reduced pressure to afford the residue. Then, IN HC1 was added to adjust the solution to pH 5 - 6 and EtOAc 2024202700   24 Apr 2024 (10 mL) was added. The organic layer was concentrated under reduced pressure to afford 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluorobenzoic acid. Yield: 700 mg (85%). LCMS method C: Rt = 0.705 min (M+H)+ = 459.2. Step 3. tert-butyl 7-(5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate Boc I N To a solution of 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[4.4]nonan-2- 10 yl)pyrimidin-5-yl)oxy)-5-fluorobenzoic acid (800 mg, 1.746 mmol) in anhydrous CH2Q2 (15 mL) were added HATU (553 mg, 1.455 mmol) and DIEA (677 mg, 5.238 mmol) under N2, and the reaction mixture was stirred at 9-20 °C for 30 min. Then diisopropylamine (265 mg, 2.619 mmol) was added to the solution and the reaction mixture was stirred at 9-20 °C for 12 h. The solvent was then removed under reduced 15 pressure. The resulting residue was purified by column chromatography on silica gel (eluting with CH2Q2: MeOH =1:0-10: l)to afford tert-butyl 7-(5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate as brown oil. Yield: 900 mg. LCMS method F: Rt = 1.238 min; (M+H)+ = 542.4. 20 Step 4. 2-((4-(2,7-diazaspiro [4.4] nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide 2024202700   24 Apr 2024 H N To a solution of tert-butyl 7-(5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (900 mg, 1.67 mmol) in anhydrous CH2CI2 (25 mL) was added TFA(5 mL) under N2. The reaction 5 mixture was stirred at 10-22 °C for 2 h. The solvent was then removed under reduced pressure. The resulting residue was adjusted to pH to 9 ~ 10 using 10% NaOH. Then the mixture was extracted with CH2CI2 (20 mL * 3). The organic layers were washed with brine (20 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro- 10 N,N-diisopropylbenzamide. The residue was used for the next step without further purification, as a brown oil.Yield: 730 mg. LCMS method F: Rt = 0.888 min; (M+H)+ = 442.4. Step 5. 5-fluoro-N,N-diisopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5- 15   yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide To a mixture of 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (730 mg, 1.654 mmol), 2-oxo-2,3-dihydro- 1H-benzo[d]imidazole-5-carbaldehyde (Intermediate 40, 536 mg, 3.308 mmol) and 4A-molecular sieves (100 mg) was added anhydrous MeOH (20 mL), then the reaction was 20 stirred at 60 °C for 30 min under N2. ThenNaBHsCN (513 mg, 8.270 mmol) was added to the solution and the reaction mixture was stirred at 60 °C for 4 h. The reaction mixture was then filtered and concentrated under reduced pressure. The resulting residue was diluted with MeOH (15 mL) and the mixture was purified by preparative RP-HPLC method C (HC1) to afford compound 5-fluoro-N,N-diisopropyl-2-((4-(7-((2-oxo-2,3- 25 dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide as a white solid. Yield: 540 mg (55%). LCMS method C: Rt = 0.931; 2024202700   24 Apr 2024 (M+H)+= 588.5. XH NMR (CD3OD): 3 8.30-8.38 (m, 1 H), 7.62-7.84 (m, 1 H), 6.86-7.15 (m, 6 H), 4.22-4.30 (m, 3 H), 3.20-4.03 (m, 9 H), 1.87-2.04 (m, 5 H), 0.81-1.30 (m, 11 H).19F NMR (CD3OD): 3-117.14. 5 Examples 1A and IB. 5-fluoro-N,N-diisopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide (Isomers 1 and 2) 10         The racemic compound of Example 1 was separated by SFC method A to afford two isomers. Isomer 1 (Example 1A): LCMS method C: Rt = 0.931; (M+H)+ = 588.5. 'H NMR(CD3OD): 3 8.54-8.61 (m, 1 H), 7.86-8.09 (m, 1 H), 7.20-7.31 (m, 5 H), 7.15 (d, J = 36.4 Hz, 1 H), 4.41-4.51 (m, 3 H), 3.40-4.02 (m, 9 H), 2.15-2.25 (m, 4 H), 1.06-1.48 15   (m, 12 H).19F NMR (CD3OD): <5-117.11. SFC Anal. Method A: tR= 0.569 min, ee = 100%. Isomer 2 (Example IB): LCMS method C: Rt = 0.930; (M+H)+ = 588.5. 'H NMR(CD3OD): 3 8.58-8.65 (m, 1 H), 7.90-8.14 (m, 1 H), 7.25-7.35 (m, 5 H), 7.18 (d, J = 44.8 Hz, 1 H), 4.45-4.54 (m, 3 H), 3.43-4.06 (m, 9 H), 2.18-2.30 (m, 4 H), 1.10-1.52 20   (m, 12 H). 19F NMR (CD3OD 400 MHz): <5-117.10. SFC Anal. Method A: t r= 0.809 min, ee = 98.87%. Example 2. 2024202700   24 Apr 2024 N-ethyl-5-fluoro-N-isopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide (Racemic Mixture) The title product was synthesized by the method described in Example 1. In step 3, N-isopropyl-N-ethyl amine was utilized. LCMS method B: Rt = 1.164; (M+H)+ = 574.1. Examples 2A and 2B. 10   N-ethyl-5-fluoro-N-isopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo [d] imidazol-5- yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide (Isomers 1- N. / 0 The racemic compound of Example 2 was separated by SFC method A to afford two isomers. Isomer 1 (Example 2A): Yield: 92.5 mg. LCMS method E: Rt = 1.132 min; (M+H)+ = 574.3 'H NMR (CD3OD): J8.20-8.29 (m, 1 H), 7.72-7.80 (m, 1 H), 6.85-7.16 2024202700   24 Apr 2024 (m, 6 H), 4.35-4.41 (m, 1 H), 3.45-3.89 (m, 8H), 3.12-3.23 (m, 1H), 2.50-2.71 (m, 4 H), 1.76-1.96 (m, 4 H), 1.05-1.27 (m, 8 H). 19F NMR (CD3OD): J-120.380. SFC Anal. Method A: tR = 0.722 min, ee = 100%. Isomer 2 (Example 2B): Yield: 115.8 mg. LCMS method E: Rt = 1.121 min; 5   (M+H)+= 574.3. XH NMR (CD3OD): J8.21-8.29 (m, 1 H), 7.71-7.80 (m, 1 H), 6.85-7.16 (m, 6 H), 4.35-4.42 (m, 1 H), 3.45-3.90 (m, 8H), 3.15-3.23 (m, 1H), 2.48-2.71 (m, 4 H), 1.76-1.96 (m, 4 H), 1.05-1.27 (m, 8 H). 19F NMR (CD3OD): J-120.390. SFC Anal. Method A: tR = 1.455 min, ee = 99.65%. 10 Examples 3A and 3B. 5-fluoro-2-((4-(7-((l-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N,N- diisopropylbenzamide (Isomers 1-2) 15           To a solution of 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5- fluoro-N,N-diisopropylbenzamide (70 mg, 0.16 mmol) and 1-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde (Intermediate 42c, 33 mg, 0.16 mmol) in anhydrous MeOH (3 mL) was added NaBH3CN (50 mg, 0.80 mmol) under N2. The reaction was stirred at 55 °C for 16 h. The reaction was concentrated under reduced 20 pressure to afford the residue which was purified by silica gel chromatography (CH2Q2: MeOH = 10: 1), and further purified by preparative SFC method B and RP-HPLC method E to give the compound as two isomers. 2024202700   24 Apr 2024 Isomer 1 (Example 3A): White solid. LCMS method E: Rt = 0.736 min (M+H)+ = 632.4. 'H NMR (CD3OD): 3 8.28 (s, 1H), 7.80 (d, J= 2.4 Hz, 1H), 6.89-7.15 (m, 5H), 6.89-6.90 (m, 1H), 3.99 (t, J= 5.6 Hz, 2H), 3.55-3.85 (m, 10H), 2.52-2.72 (m, 4H), 1.841.96 (m, 4H), 1.54 (dd, J= 2.4, 6.8 Hz, 3H), 1.43 (t, J= 4.8 Hz, 3H), 1.19 (d, J= 3.2 Hz, 5   3H), 1.32 (t, J= 4.8 Hz, 3H).19F NMR (CD3OD): 3 -120.25 - 120.33. SFC Anal. Method B: tR= 7.26 min, ee = 100%. Isomer 2 (Example 3B): White solid. LCMS method E: Rt = 0.738 min. (M+H)+ = 632.4. 'H NMR (CD3OD): 3 8.28 (s, 1H), 7.80 (d, J= 2.4 Hz, 1H), 6.89-7.15 (m, 5H), 6.89-6.90 (m, 1H), 3.99 (t, J= 5.6 Hz, 2H), 3.55-3.85 (m, 10H), 2.52-2.72 (m, 4H), 1.8410   1.96 (m, 4H), 1.54 (dd, J= 2.4, 6.8 Hz, 3H), 1.43 (t, J= 4.8 Hz, 3H), 1.19 (d, J= 3.2 Hz, 3H), 1.32 (t, J= 4.8 Hz, 3H). 19F NMR (CD3OD): 3 -120.27 - 120.35. SFC Anal. Method B: t r= 7.92 min, ee = 97.04%. Example 4. 15 N-ethyl-5-fluoro-2-((4-(7-((l-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N-isopropylbenzamide To a solution of 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N- 20 ethyl-5-fluoro-N-isopropylbenzamide (prepared as an intermediate during the synthesis of Example 2, 100 mg, 0.23 mmol) in anhydrous MeOH (10 mL) was added 1-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde (Intermediate 42c, 72 mg, 0.35 mmol), and was stirred for 5 min under N2. Then NaBH3CN (71 mg, 2024202700   24 Apr 2024 1.15 mmol) was added and the mixture was stirred at 65 °C for 2 h. The reaction mixture, with an additional 20 mg of 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N-ethyl-5-fluoro-N-isopropylbenzamide, was concentrated under reduced pressure to afford the residue which was purified by column chromatograph on silica gel 5 (eluting with di chloromethane: methanol = 20: 1 to 10: 1) to give N-ethyl-5-fluoro-2-((4-(7-((1 -(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N-isopropylbenzamide as a yellow oil. Yield: 70 mg. LCMS method C: Rt = 0.583 min; (M+H)+ = 618.1. 10 Examples 4A and 4B. N-ethyl-5-fluoro-2-((4-(7-((l-(2-hydroxyethyl)-2-oxo-2,3-dihydro-lH- benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N-isopropylbenzamide (Isomers 1-2) 15          An amount of 70 mg of N-ethyl-5-fluoro-2-((4-(7-((l-(2-hydroxyethyl)-2-oxo- 2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N-isopropylbenzamide (Example 4) was separated with SFC method A to give Isomers 1 and 2 as white solids. Isomer 1 (Example 4A): Yield: 8.70 mg. Rt = 1.14 min; (M+H)+ = 618.3. 'H 20 NMR (CD3OD): J8.27-8.29 (m, 1 H), 7.78-7.82 (m, 1 H), 6.89-7.18 (m, 6 H), 3.33-4.01 (m, 13 H), 2.48-2.75 (m, 4 H), 1.75-1.96 (m, 4 H), 1.05-1.26 (m, 9 H). 19F NMR (CD3OD): J-120.390. SFC Anal. Method C: tR= 1.870 min, ee = 98.60%. 2024202700   24 Apr 2024 Isomer 2 (Example 4B): Yield: 9.2 mg. LCMS method E: Rt = Rt value: 1.140 min;(M+H)+= 618.3. 'H NMR (CD3OD): J8.25-8.31 (m, 1 H), 7.76-7.25 (m, 1 H), 6.857.20 (m, 6 H), 3.48-4.00 (m, 13 H), 2.48-2.75 (m, 4 H), 1.75-1.96 (m, 4 H), 1.05-1.33 (m, 9 H). 19F NMR (CD3OD): J-120.398. SFC Anal. Method C: tR= 2.922 min, ee = 5   99.43%. Example 5. 5-fluoro-N-(2-hydroxyethyl)-N-isopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH- benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5- Step 1. tert-butyl 7-(5-(2-((2-((tert-butyldimethylsilyl)oxy)ethyl)(isopropyl)carbamoyl)- 4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate Boc l 15           To a solution of 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[4.4]nonan-2- yl)pyrimidin-5-yl)oxy)-5-fluorobenzoic acid (Intermediate 33, Step 2, 50 mg, 0.1092 mmol) in anhydrous DMF (3 mL) was added N-(2-((tert- butyldimethylsilyl)oxy)ethyl)propan-2-amine (36 mg, 0.1637 mmol), HATU (83 mg, 0.2183 mmol) and DIEA (28 mg, 0.2183 mmol)and the mixture was stirred at 16 °C for 6 2024202700   24 Apr 2024 h under N2. The mixture was then diluted with EtOAc (20 mL) and washed with brine (3 x 20 mL). The organic layer was dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by preparative TLC with EtOAc to afford tert-butyl 7-(5-(2-((2-((tert-butyldimethylsilyl)oxy)ethyl)(isopropyl)carbamoyl)-4-5 fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate as a yellow oil. Yield: 50 mg. LCMS method C: Rt = 0.851 min, (M+H)+ = 658.1. Step 2. 2-((4-(2,7-diazaspiro [4.4] nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-(2- hydroxyethyl)-N-isopropylbenzamide H N To a solution of tert-butyl 7-(5-(2-((2-((tert-butyldimethylsilyl)oxy)ethyl)(isopropyl)carbamoyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (50 mg, 0.0761 mmol) in CH2Q2 (4 mL) was added TFA (1 mL)and the mixture was stirred at 16 °C for 3 h. The mixture was then 15 concentrated under reduced pressure. The residue was adjusted to pH = 8-9 with sat. NaHCOs solution and diluted with water (15 mL). The aqueous layer was extracted with CH2CI: TrOH (3:1,3 * 20 mL). The combined organic layers were dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to give crude 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-(2-hydroxyethyl)-N- 20 isopropylbenzamide as a yellow oil, which was used for the next step directly without further purification. Yield: 34 mg. Step 3. 5-fluoro-N-(2-hydroxyethyl)-N-isopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5- 25 yl)oxy)benzamide 2024202700   24 Apr 2024 To a solution of 2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-(2-hydroxyethyl)-N-isopropylbenzamide (34 mg, 0.0761 mmol) in anhydrous MeOH (3 mL) was added 2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde (Intermediate 40, 25 mg, 0.1522 mmol) andNaBHaCN (24 mg, 0.3805 mmol). The 5 mixture was stirred at 60 °C for 16 h under N2. LCMS showed that the reaction was completed. The mixture was concentrated under reduced pressure and purified directly by RP- HPLC method D to give 5-fluoro-N-(2-hydroxyethyl)-N-isopropyl-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide as a pale yellow solid. Yield: 10.00 mg. LCMS method 10 C: Rt = 0.560 min, (M+H)+ = 590.2 'H NMR (CDCh): d 10.35-10.15 (m, 0.5H), 9.759.60 (m, 0.5H), 9.01-8.77 (m, 1H), 8.36 (s, 1H), 7.81-7.70 (m, 1H), 7.35-7.25 (m, 0.5H), 7.18-7.08 (m, 0.5H), 7.05-6.90 (m, 2H), 6.89-6.75 (m, 2H), 6.65-6.50 (m, 1H), 4.05-3.25 (m, 12H), 2.97-2.25 (m, 4H), 2.12-1.85 (m, 4H), 1.30-1.07 (m, 6H). 19F NMR (CDCh): b -119.3. 15 Example 6A. 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4- (methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide Step 1. tert-butyl 2-(5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane- 7-carboxylate 2024202700   24 Apr 2024 Boc A mixture of 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (Intermediate 41, 1.8 g, 5.13 mmol), tert-butyl 2,7-diazaspiro[3.5]nonane-7-carboxylate (1.35 g, 5.13 mmol) and DIEA (1.32 g, 10.26 5 mmol) in 'PrOH (20 mL) was stirred at 70 °C for 16 h. After concentration, the mixture was purified directly by column chromatography on silica gel eluting with petroleum ether: ethyl acetate = 3: 7 to afford tert-butyl 2-(5-(2-(diisopropylcarbamoyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane-7-carboxylate as a yellow oil. Yield: 2.9 g. LCMS method E: Rt = 0.767 min; (M+H)+ = 542.2 o Step 2: 2-((4-(2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide H The solution of tert-butyl 2-(5-(2-(diisopropylcarbamoyl)-4- 15 fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane-7-carboxylate (2.9 g, 5.35 mmol) in anhydrous CH2CI2 (30 mL) was added TFA (10 mL) and the mixture was stirred at 25 °C for 2 h. The mixture was then concentrated under reduced pressure and to the residue was added 30% aqueous NaOH solution to a pH = 11-12. The aqueous layer was then extracted with CH2C12 / 'PrOH (4 / 1, 3 / 30 mL). The combined organic layers 20 were dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford crude 2-((4-(2,7-di azaspiro[3.5 ]nonan-2-yl)pyrimidin-5 -yl)oxy)-5 -fluoro-N,N- 2024202700   24 Apr 2024 diisopropylbenzamide as a yellow solid, which was used for next step without further purification. Yield: 2.3 g. LCMS method C: Rt = 0.584 min, (M+H)+ = 442.1. Step 3: tert-butyl ((lr,4r)-4-((2-(5-(2-(diisopropylcarbamoyl)-4- 5   fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5Jnonan- 7- yl)methyl)cyclohexyl)carbamate (Example 99A) To a solution of 2-((4-(2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (2.3 g, 5.20 mmol) in anhydrous MeOH (50 mL) was 10 adjusted to pH 6-7 by AcOH. Then tert-butyl ((lr,4r)-4-formylcyclohexyl)carbamate (1.3 g, 5.72 mmol) was added. After being stirred at 25 °C for 5 min, NaBHsCN (656 mg, 10.41 mmol) was added and the mixture was stirred at 70 °C for 1 h. The mixture was then concentrated under reduced pressure. The residue was dissolved with EtOAc (50 mL) and washed with H2O (2 x 30 mL). The organic layer was dried over anhydrous 15 Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with petroleum ether:ethyl acetate = 3:7 to afford tert-butyl ((lr,4r)-4-((2-(5-(2-(diisopropylcarbamoyl)-4 fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonan-7-yl)methyl)cyclohexyl)carbamate as a white solid. Yield: 3.0 g. LCMS method C: Rt = 0.929 min; (M+H)+ = 653.3. 20 Step 4: 2-((4-(7-(((lr,4r)-4-aminocyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide 2024202700   24 Apr 2024 To a solution of tert-butyl ((lr,4r)-4-((2-(5-(2-(diisopropylcarbamoyl)-4- fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonan-7-yl)methyl)cyclohexyl)carbamate (3 g, 4.60 mmol) in anhydrous ethyl CH2Q2 (30 mL) 5 was added with TFA (10 mL) and the mixture was stirred at 25 °C for 2 h. The mixture was then concentrated under reduced pressure to afford crude 2-((4-(7-(((lr,4r)-4-aminocyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide as a pale yellow oil, which was used for next step without further purification. Yield: 4.0 g. LCMS method C: Rt = 0.513 min; (M+H)+ = 553.2. 10 Step 5: (5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro [3.5] nonan-2-yl)pyrimidin-5-yl)oxy) benzamide) 15          To a solution of 2-((4-(7-(((lr,4r)-4-aminocyclohexyl)methyl)-2,7- diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (3.6 g, crude, about 4.14 mmol) and EtsN (2.47 g, 24.0 mmol) in anhydrous CH2CI2 (50 mL) 2024202700   24 Apr 2024 was added MsCl (844 mg, 7.34 mmol) dropwise at 0 °C under N2 and the mixture was stirred at 0 °C for 2 h. The mixture was then washed with H2O (3 x 50 mL) and brine (50 mL). The organic layer was dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica 5 gel eluting with CH2Q2: CH3OH = 19:1 to afford 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide as a white solid, which was purified by by RP-HPLC method D to afford 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5- 10 yl)oxy)benzamide as a white solid. Yield: 1.59 g. LCMS method C: Rt = 0.565 min; (M+H)+= 631.1. ^NMR (CDCI3): d 8.27 (s, 1H), 8.78 (s, 1H), 7.17-7.15 (m, 2H), 7.036.99 (m, 1H), 4.06-4.03 (m, 2H), 3.96-3.89 (m, 2H), 3.87-3.84 (m, 1H), 3.66-3.63 (m, 1H), 3.34-3.32 (m, 1H), 3.20-3.15 (m, 1H), 2.95 (s, 3H), 2.55-2.51 (m, 3H), 2.33-2.30 (m, 2H), 2.06-2.04 (m, 2H), 1.89-1.87 (m, 6H), 1.56 (d, J= 6.8 Hz, 4H), 1.48 (d, J= 6.8 15 Hz, 3H), 1.33-1.30 (m, 2H), 1.20 (d, J= 6.8 Hz, 3H), 1.13 (d, J= 6.4 Hz, 3H), 1.08-1.07 (m, 2H). 19F NMR (CDCI3): 6 -119.7. Examples 6A-6B. Alternative Synthesis of 5-fluoro-N,N-diisopropyl-2-((4-(7-(((lr,4r)-4- 20   (methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro [3.5] nonan-2-yl)pyrimidin-5- yl)oxy)benzamide (Example 6A) and 5-fluoro-N,N-diisopropyl-2-((4-(7-(((ls,4s)-4-(methylsulfonamido)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide (Example 6B) 2024202700   24 Apr 2024 To a solution of 2-((4-(2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (Example 6A, Step 2, 11 g, 24.9 mmol) in anhydrous CH2Q2 (170 mL) was added Intermediate 47 (7.5 g, 36.6 mmol). The mixture was stirred at RT for 15 min and NaBH(OAc)3 (7.2 g, 33.9 mmol) was added in portions over 5   5 min. The mixture was stirred at RT for another 2 h. The mixture was washed with H2O (3 X 100 mL) and brine (100 mL), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with CH2CI2 / CH3OH = 24 / 1 to 10 / 1 to afford the title compound as the free base with a trans:cis ratio of 97:3. LC-MS Method D tR = 10   0.555 min, MS (m / z 631.3 [M+H]+ The trans and cis isomers were separated by SFC method A. Trans-isomer (Example 6A): LC-MS Method E tR = 3.881 min, m / z 631.3 [M+H]+. Isomer SFC tR= 4.430 min in 10 min chromatography (Column: OD-3; Method Name: OD-3_EtOH / diethylamine_5_40_25mL, trans = 100%). 'H NMR (CD3OD ): 3 15   8.22 (s, 1H), 7.73 (s, 1H), 7.23-7.10 (m, 2H), 7.01-6.95 (m, 1H), 4.08-3.80 (m, 5H), 3.68 3.56 (m, 1H), 3.20-3.07 (m, 1H), 2.92 (s, 3H), 2.48-2.25 (m, 4H), 2.13 (d, J= 6.4 Hz, 2H), 2.06-1.96 (m, 2H), 1.91-1.76 (m, 6H), 1.53 (d, J= 6.8 Hz, 3H), 1.51-1.45 (m, 1H), 1.45 (d, J= 6.8 Hz, 3H), 1.35-1.24 (m, 2H), 1.17 (d, J= 6.8 Hz, 3H), 1.09 (d, J= 6.4 Hz, 3H), 1.06-0.98 (m, 2H). 19F NMR (CDCh): 3 -119.711. 20         Cis-isomer (Example 6B): LC-MS method D: tR = 0.582 minm / z 631.1 [M+H]+. Isomer SFC tR= 4.461 min in 10 min chromatography (Column: OD-3; Method Name: OD-3_EtOH / diethylamine_5_40_25mL, trans / cis = 2.1% / 97.9%). 'H NMR (CDCh): 3 8.36 (s, 1H), 7.75 (s, 1H), 7.05-6.96 (m, 2H), 6.80-6.71 (m, 1H), 4.40-4.30 (m, 1H), 4.053.75 (m, 5H), 3.70-3.60 (m, 1H), 3.55-3.45 (m, 1H), 2.96 (s, 3H), 2.45-2.09 (m, 6H), 25   1.85-1.65 (m, 10H), 1.60-1.45 (m, 7H), 1.44-1.19 (m, 2H), 1.13 (d, J= 6.8 Hz, 3H), 1.09 (d, 7=6.8 Hz, 3H). 19F NMR (CDCh): 3 -118.583. Example 7. 5-((7-(5-(2-(amino(cyclopentyl)methyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7- 30 diazaspiro[4.4]nonan-2-yl)methyl)-l,3-dihydro-2H-benzo[d]imidazol-2-one 2024202700   24 Apr 2024 Step 1: tert-Butyl 7-(5-(2-(l-((tert-butylsulfinyl)amino)ethyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate 5          To a solution of tert-butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7- diazaspiro[4.4]nonane-2-carboxylate (Intermediate 11, 407 mg, 0.83 mmol) and (E)-N-(cyclopentylmethylene)-2-methylpropane-2-sulfinamide (249 mg, 1.24 mmol) in anhydrous THF (6 mL) was added 1.6 M BuLi solution in hexane (0.78 mL, 1.24 mmol) dropwise under N2 atmosphere at -78 °C. After the addition, the mixture was stirred for 10 another 30 min before quenching with aq. NH4CI solution. The reaction mixture was extracted twice with EtOAc and the combined organic phase was washed with H2O, dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure. The residue was purified by flash chromatography using DCM / MeOH as eluent to yield 461 mg of the desired product tert-butyl 7-(5-(2-(1 -((tert-butyl sulfmyl)amino)ethyl)-4- 15 fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate. LCMS method B:Rt= 1.32 min, (M+H)+= 616.3. Step 2: N-((2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5- fluorophenyl)(cyclopentyl)methyl)-2-methylpropane-2-sulfmamide 2024202700   24 Apr 2024 H To a solution of tert-butyl 7-(5-(2-(l-((tert-butylsulfmyl)amino)ethyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (61 mg, 0.099 mmol) in DCM (6 mL) was added TFA (0.3 mL). The mixture was stirred 16 h at RT. 5 The reaction mixture was diluted with EtOAc, washed with aqueous NaHCO, solution and brine successively, dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure to afford 37 mg of crude product, which was used in the next step without further purification. 10 Step 3: N-(cyclopentyl(5-fluoro-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)phenyl)methyl)-2-methylpropane-2-sulfinamide To a solution of N-((2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5- 15 fluorophenyl)(cyclopentyl)methyl)-2-methylpropane-2-sulfmamide (37 mg, 0.072 mmol) in MeOH (2 mL) was added 2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde (Intermediate 40, 14 mg, 0.086 mmol) andNaBLECN (9 mg, 0.14 mmol). The suspension was stirred at RT for 24 h. Solvent was removed under reduced pressure. The residue was used for next step without further purification. 2024202700   24 Apr 2024 Step 4: 5-((7-(5-(2-(ammo(cyclopentyl)methyl)-4-fluorophenoxy)pyrimidm-4-yl)-2,7-diazaspiro[4.4]nonan-2-yl)methyl)-l, 3-dihydro-2H-benzo[d]imidazol-2-one Above crude product was dissolved in MeOH (1 mL) and 4 M HCl / dioxane (3 5 ml). The solution was stirred at RT for 30 min before solvents was removed under reduced pressure. The residue was purified by RP-HPLC method A to afford 5-((7-(5-(2-(amino(cyclopentyl)methyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-2-yl)methyl)-l,3-dihydro-2H-benzo[d]imidazol-2-one. LCMS method A: Rt = 0.15 min, (M+H)+= 558.3. 1HNMR(CD3OD)5: 8.57 (s, 1H), 7.83 (m, 1H), 7.41 (m, 1H), 7.26 10   7.17 (m, 4H), 7.09 (d, J = 7.6 Hz, 1H), 4.42 (m, 2H), 4.07 (m, 4H), 3.64-3.34 (m,4H), 2.48 (m, 1H), 2.22-2.03 (m, 5 H), 1.78-1.48 (m, 6H), 1.39 (d, J = 6.4 Hz, 1H). Example 8. 5-((7-(5-(2-(cyclopentyl(dimethylamino)methyl)-4-fluorophenoxy)pyrimidin-4-yl)- 15 2,7-diazaspiro[4.4]nonan-2-yl)methyl)-l,3-dihydro-2H-benzo[d]imidazol-2-one H To a solution of 5-((7-(5-(2-(amino(cyclopentyl)methyl)-4- fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-2-yl)methyl)-l,3-dihydro-2H-benzo[d]imidazol-2-one tri-TFA salt (Example 7, 8.7 mg, 0.01 mmol) in DCM (2 mL) 20 was added TEA (1 drop), paraformadehyde (4 mg), followed by NaBH3(OAc)3 (9 mg, 0.04 mmol). The mixture was stirred overnight at RT before the solvent was removed under reduced pressure. The residue was purified by RP- HPLC method A to afford the titled compound. LCMS method A: Rt = 0.53 min, (M+H)+ = 586.3. 'H NMR (CD3OD) 5: 5: 8.57 (s, 1H), 7.83 (m, 1H), 7.61 (m, 1H), 7.36 (m, 1H), 7.26 (m, 1H), 7.21 (s, 1H), 2024202700   24 Apr 2024 7.18 (d, J= 8.0 Hz, 1H), 7.09 (d, J= 8.0 Hz, 1H), 4.43 (m, 2H), 4.14 (m, 2H), 3.62-3.45 (m, 3H), 2.84 (s, 6H), 2.20-2.06 (m, 5H), 1.76 (m, 2H), 1.62-1.47 (m, 4H), 0.99 (m, 1H). Example 9. 5 N-(cyclopentyl(5-fluoro-2-((4-(7-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5- yl)methyl)-2,7-diazaspiro[4.4]nonan-2-yl)pyrimidin-5- yl)oxy)phenyl)methyl)acetamide The title product was synthesized by acylating the compound of Example 7 with 10 acetic anhydride in pyridine. The final product was purified by RP-HPLC method A. LCMS method A: Rt = 0.53 min, (M+H)+ = 600.3. Example 10. 6-((7-(5-(4-fluoro-2-(l-hydroxy-2-methylpropyl)phenoxy)pyrimidin-4-yl)-2,7- 15 diazaspiro [4.4] nonan-2-yl)methyl)-3,3-dimethylindolin-2-one 2024202700   24 Apr 2024 Step 1: 1-(2-((4-(2,7-diazaspiro[4.4]nonan-2-yl)pyrimidm-5-yl)oxy)-5-fluorophenyl)-2-methylpropan-l-ol H N To a solution of tert-butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7-5 diazaspiro[4.4]nonane-2-carboxylate (Intermediate 11, 526 mg, 1.065 mmol) and N-methoxy-N-methylisobutyramide (268 mg, 2.04 mmol) in dry THF (6 mL) under N2 atmosphere at -78 °C was added 1.6 M BuLi (0.7 mL, 1.067 mmol) dropwise. After the addition, the reaction mixture was stirred for another 10 min before quenched with aqueous NH4CI solution. The resulting mixture was extracted with EtOAc, washed with 10 H2O, brine, dried over anhydrous Na2SO4 and filtered. The filtrate was concentrated to dryness. The residue was purified by flash chromatography to afford 249 mg of tert-butyl 7-(5-(4-fluoro-2-isobutyrylphenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (Intermediate 41b). LCMS Method B: tR: 1.76 min, (M+H)+ = 485.3 To a cold solution of Intermediate 41b (83 mg, 0.17 mmol) in THF / MeOH (2 / 0.5 15 mL) at 0 °C was added NaBH4 (20 mg, 0.53 mmol). The mixture was stirred for another 20 min and quenched with acetone. The solvent was removed to give the crude product. The crude product was then dissolved in MeOH (1 mL) 4 M HCl / dioxane (0.5 mL) was added and the mixture was stirred for 30 min. The solvents were removed under reduced pressure to afford crude product as the bis-HCl salt. 20 Step 2: 6-((7-(5-(4-fluoro-2-(l-hydroxy-2-methylpropyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-2-yl)methyl)-3,3-dimethylindolin-2-one The crude product from Step 1 was dissolved in DCM (1 mL) containing TEA (0.1 mL). Solvent was then removed under reduced procedure. The resulting residue was 25 dissolved in DCM (2 mL). To this solution was added Intermediate 45 (32 mg, 0.17 mmol) and NaBH(OAc)3 (72 mg, 0.34 mmol) and the mixture was stirred for 30 min. The 2024202700   24 Apr 2024 solvents were removed and the residue was purified by preparative HPLC method A to afford the titled compound as a TFA salt. LCMS method A: Rt = 075 min, (M+H)+ = 560.3.¾ NMR(CD3OD) 5: 8.53 (s, 1H), 7.58 (s, 1H), 7.36-7.10 (m, 6H), 4.53-3.78 (m, 11H), 2.22 (m, 4 H), 1.96 (m, 1H), 1.34 (s, 6H), 1.00 (d, 7= 6.8 Hz, 3H), 0.84 (d,7=6.8 5 Hz, 3H). Example 11. 6-((7-(5-(4-fluoro-2-isobutyrylphenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-2-yl)methyl)-3-methyl-2-oxoindoline-3-carbonitrile The title compound was synthesized from tert-butyl 7-(5-(4-fluoro-2-isobutyrylphenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (Intermediate 41b), by the method described for step 2 and 3 in the synthesis of Example 10. In step 3, 6-formyl-3-methyl-2-oxoindoline-3-carbonitrile was utilized. LCMS 15 method A: Rt = 0.57 min, (M+H)+= 569.3. Example 12. 5-fluoro-2-((4-(6-(3-(4-fluorophenyl)propanoyl)-2,6-diazaspiro[3.4]octan-2-yl)pyrimidin-5-yl)oxy)-N,N-diisopropylbenzamide 2024202700   24 Apr 2024 To a solution of Intermediate 41b (10 mg, 0.02 mmol), 3-(4-fluorophenyl)propanoic acid (10 mg, 0.06 mmol) and iPr2NEt (0.02 mL, 0.11 mmol) in DMF (2 mL) was added HATU (12 mg, 0.03 mmol) at RT and the reaction mixture was 5 stirred for 1 h at RT. EtOAc (5 mL) and H2O (2 mL) were added for the workup. The EtOAc layer was dried using Na2SO4 and evaporated. The crude residue was purified by ISCO flash column chromatography (eluting with 10% MeOH in DCM) to afford 5-fluoro-2-((4-(6-(3-(4-fluorophenyl)propanoyl)-2,6-diazaspiro[3.4]octan-2-yl)pyrimidin-5-yl)oxy)-A,A-diisopropylbenzamide as the free base. LCMS Method G: tR = 6.728 min, 10 MS (ESI) m / z 578.56 [M+H]+. 'H NMR (CD3OD): 3 8.45 (s, 1H), 7.72 (s, 1H), 7.25-7.17 (m, 5H), 6.93 (t, J= 8.4 Hz, 2H), 4.65-4.20 (m, 4H), 3.77-3.72 (m, 1H), 3.60-3.56 (m, 3H), 3.44-3.40 (m, 2H), 2.85 (t, J= 7.6 Hz, 2H), 2.55 (t, J= 7.6 Hz, 2H), 2.16-2.10 (m, 2H), 1.46 (d, J= 6.4 Hz, 3H), 1.37 )d, J= 6.4 Hz, 3H), 1.15 (d, J = 6.4 Hz, 3H), 1.03 (d, 7=6.4 Hz, 3H). 15 Example 13. 5-((7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin -4-yl)-3-oxo-2,7-diazaspiro [4.4] nonan-2-yl)methyl)-lH-benzo [d] imidazol-2(3H)-one 2024202700   24 Apr 2024 Step 1: 2,7-diazaspiro[4.4]nonan-3-one O To solution of tert-butyl 8-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate (1 g, 4.2 5 mmol) in anhydrous CH2CI2 (5 mL) was added HCl-dioxane (5 mL) and stirred at 16-34 °C for 1 h. The mixture was concentrated to afford 2,7-diazaspiro[4.4]nonan-3-one (HC1 salt, crude) as white solid, which was used in next step directly. Yield: 900 mg (HC1 salt). Step 2: 7-(5-(2-bromo-4-fluorophenoxy)pyrimidm-4-yl)-2,7-diazaspiro [4.4]nonan-3-one Br N To solution of 2,7-diazaspiro[4.4]nonan-3-one (900 mg, 4.1 mmol, HC1 salt, crude) in CH3CN (20 mL) was added 5-(2-bromo-4-fluorophenoxy)-4-chloropyrimidine (Intermediate 1, 1.3 g, 4.05mmol) and K2CO3 (1.1 g, 8.1 mmol). The mixture was stirred at 85 °C for 24 h. The mixture was fitered and the filtrate was concentrated to purify by 15 ISCO column chromatography on silica gel (from 100% DCM to 5% MeOH in DCM) to give 7-(5 -(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3 -one as 2024202700   24 Apr 2024 colorless oil. Yield: 1.2 g (73%); LCMS Method C: Rt = 0.659 min. (M+H)+ = 407.0, 409.0 (bromo isotopes). Step 3: 7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diaza 5   spiro [4.4]nonan-3-one To solution of 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one (850 mg, 2.09 mmmol) in dioxane:H2O (15 mL, 1:1) was added (1-isopropyl-lH-pyrazol-5-yl)boronic acid (385 mg, 2.51 mmol), Sphos 10 Pallacycle-gen 2 (75 mg, 0.105 mmol) and K3PO4 (1.34 g, 6.27 mmol). The mixture was heated at 115 °C for 30 min in a microwave. The mixture was then concentrated and diluted with EtOAc (30 mL) and washed with brine (50 mL x 2). The organic layers were concentrated and the residue was purified by ISCO column chromatography on silica gel (from 100% DCM to 10% MeOH in DCM) to afford a brown solid. This solid was 15 purified by basic preparative RP-HPLC method D to afford 7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one as a white solid. Yield: 350 mg. LCMS Method C: Rt = 0.629 min; (M+H)+ = 437.2. 'H NMR (CDCL): 3 8.40 (s, 1H), 7.82 (s, 1H), 7.57 (s, 1H), 7.05-7.15 (m, 2H), 6.81 (dd, J= 9.2 4.4 Hz, 1H), 6.17 (d, 7=2.0 Hz, 1H), 5.74 (s, 1H), 4.30-4.41 (m, 1H), 3.80-3.85 (m, 1H), 20   3.71 (d, J= 11.2 Hz, 1H), 3.50-3.65 (m, 2H), 3.30-3.43 (m, 2H), 2.15-2.25 (m, 1H), 2.00 2.10 (m, 2H), 1.75-1.85 (m, 1H), 143 (d, 7=6.8 Hz, 3H), 1.47 (d, J= 6.8 Hz, 3H). 19F NMR (CDCL): <5 -119.08. Step 4: 7-(5-(4-jluoro-2-(l-isopropyl-lH-pyrazol-5-yl) phenoxy)pyrimidin-4-yl)-2-(4- 25 fluoro-3-nitrobenzyl)-2,7-diazaspiro[4.4]nonan-3-one 2024202700   24 Apr 2024 To a solution of 7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one (50 mg, 0.11 mmmol) in anhydrous THF (3 mL) was added NaH (7 mg, 0.17 mmol) and n-Bud (4 mg, 0.01 5 mmol). Then 4-(bromomethyl)-l-fluoro-2-nitrobenzene (33 mg, 0.14 mmol, dissolved in 1 mL THF) was added dropwise into the mixture and the mixture was stirred at 0 °C for 30 min. Then the mixture was stirred at 16-25 °C for 2 h. The mixture was quenched with saturated NH4CI (5 mL, aq.) and extracted with EtOAc (5 mL x 2). The combined organic layers were dried over Na2SO4 and concentrated. The resulting residue was 10 purified by acidic preparative RP-HPLC method A to give 7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2-(4-fluoro-3-nitrobenzyl)-2,7- diazaspiro[4.4]nonan-3-one as the TFA salt as a white solid. Yield: 21 mg (32%); LCMS Method C: Rt = 0.740 min; (M+H)+ = 589.9.¾ NMR (MeOD): 3 8.54 (s, 1H), 8.03 (d, J = 6.8 Hz, 1H),7.94 (s, 1H), 7.60-7.70 (m, 1H), 7.56 (s, 1H), 7.46 (t, J= 9.2 Hz, 1H), 15   7.35-7.40 (m, 2H), 7.31 (d, 7= 8.8 Hz, 1H), 6.30 (s, 1H), 4.57 (s, 2H), 4.35-4.45 (m, 1H), 4.05-4.15 (m, 1H), 4.00-4.05 (m, 1H), 3.85-3.95 (m, 1H), 3.65-3.80 (m, 1H), 3.35-3.50 (m, 2H), 2.00-2.25(m, 4H), 1.30-1.45 (m, 6H). 19F NMR (MeOD): 3 -77.21, -117.66, -122.07. 20 Step 5: 2-(4-amino-3-nitrobenzyl)-7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro [4.4]nonan-3-one 2024202700   24 Apr 2024 To solution of 7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2-(4-fluoro-3-nitrobenzyl)-2,7-diazaspiro[4.4]nonan-3-one (80 mg, 0.14 mmmol) in NHs-MeOH (5 mL) was heated to 70 °C for 36 h in an autocalve. The mixture was then 5 concentrated and purified by preparative TLC on silica gel (DCM: MeOH = 10: 1) to give 2-(4-amino-3-nitrobenzyl)-7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one as yellow solid. Yield: 65 mg (80%); LCMS method C: Rt = 0.713 min; (M+H)+ = 587.2. 'H NMR (MeOD): 3 8.29 (s, 1H), 7.96 (s, 1H), 7.83 (s, 1H), 7.51 (s, 1H), 7.22-7.30 (m, 2H), 7.19 (dd, J= 8.0 2.8 10 Hz, 1H), 6.96-6.99 (m, 2H), 6.19 (s, 1H), 4.38-4.43 (m, 3H), 3.65-3.73 (m, 1H), 3.593.71 (m, 2H), 3.51 (d, J= 12.0 Hz, 1H), 3.35 (s, 1H), 3.27-3.29 (m, 1H), 2.11-2.16 (m, 1H), 1.84-2.06 (m, 3H), 1.33-1.44 (m, 6H).19F NMR (MeOD): 3 -120.79. Step 6: 2-(3,4-diaminobenzyl)-7-(5-(4-fluoro-2-(1 -isopropyl-lH-pyrazol-5-yl)phenoxy)py 15   rimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one 2024202700   24 Apr 2024 To a solution of 2-(4-amino-3-nitrobenzyl)-7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one (50 mg, 0.85 mmol) in anhydrous EtOH (10 mL) was added Raney Ni (10 mg, wet) and stirred at 1726 °C for 18 h under EE (15 psi). The mixture was fitered and the fitrate was 5 concentrated. The residue was purified by preparative TLC on silica gel (DCM: MeOH = 10: 1) to give 2-(3,4-diaminobenzyl)-7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one as a white solid. Yield: 20 mg (42%); LCMS method C: Rt = 0.624 min. (M+H)+ = 557.3. 10 Step 7: 5-((7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-3-oxo -2,7-diazaspiro[4.4]nonan-2-yl)methyl)-lH-benzo[d]imidazol-2(3H)-one To solution of 2-(3,4-diaminobenzyl)-7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one (13 mg, 0.023 mmol) in anhydrous THF (5 mL) was added EtsN (10 pL) and bis(trichlormethyl)carbonate (7 mg, 15   0.023 mmol) and the resulting mixture was sitrred at 18-26 °C for 16 h. TLC (DCM: MeOH = 10: 1, Rf = 0.7) showed a new spot and 2-(3,4-diaminobenzyl)-7-(5-(4-fluoro-2-(l-isopropyl-lH-pyrazol-5-yl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonan-3-one was not consumed completely. The mixture was poured into water (5 mL) and extrated with EA (10 mL x 2). The combined organic layers were washed with brine (30 mL x 2), 20 dried over Na2SO4 and concentrated to purify by basic preparative RP-HPLC method D to give 5-((7-(5 -(4-fluoro-2-( 1 -i sopropyl-1 H-pyrazol-5 -yl)phenoxy)pyrimidin-4-yl)-3 -oxo-2,7-diazaspiro[4.4]nonan-2-yl)methyl)-lH-benzo[d]imidazol-2(3H)-one as a white solid. Yield: 2.9 mg (22%); LCMS method C: Rt =: 1.596 min, (M+H)+ = 583.2. 'H NMR(MeOD): 3 8.30 (s, 1H), 7.83 (s, 1H), 7.48 (s, 1H), 7.25-7.35 (m, 1H), 7.21 (d, J= 25   8.4 Hz, 1H), 7.00-7.05 (m, 1H), 6.95-7.00 (m, 3H), 6.16 (s, 1H), 4.35-4.55 (m, 3H), 3.80 3.90 (m, 1H), 3.55-3.70 (m, 2H), 3.45-3.55 (m, 1H), 3.20-3.30 (m, 2H), 1.85-2.20 (m, 4H), 1.35-1.45 (m, 6H).19F NMR (MeOD): 3 -120.78. Examples 14A-14B. 30 N-(4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)-4-(6-((tetrahydro-2H-pyran-4-yl)methyl)-2,6-diazaspiro [3.3] heptan-2-yl)pyrimidin-5-amine (Example 2024202700   24 Apr 2024 14A) & 4-(5-fluoro-2-((4-(6-((tetrahydro-2H-pyran-4-yl)methyl)-2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-yl)oxy)phenyl)-5-isopropyl-3-methylisoxazole (Example 14B) 5 Step 1. 5dsopropyl-3-methylisoxazole and 3-isopropyl-5-methylisoxazole N and A suspension of 5-methylhexane-2,4-dione (300 mg, 2.34 mmol) and hydroxylamine HC1 (194 mg, 2.82 mmol) in EtOH was heated for 3 min in a microwave at 130 °C. The EtOH was evaporated and crude product was partitioned between Et2O (5 10 mL) and water (3 mL). The Et2O layer was dried using MgSO4 and subsequently evaporated to give the crude product as a 4:1 mixture of isoxazole regioisomers. The major isomer was assigned as 5-isopropyl-3-methylisoxazole and the minor as 3-isopropyl-5-methylisoxazole. This crude mixture was used directly for the next step without further purification. LCMS method A: tR = 1.485; [M + H]+ = 126.28. 15 Step 2. 4-bromo-5-isopropyl-3-methylisoxazole and 4-bromo-3-isopropyl-5-methylisoxazole and To a solution of crude 5-isopropyl-3-methylisoxazole (4:1 crude mixture from 20 Step 1, 2.34 mmol) in DMF (3 mL) was added 7V-bromosuccinimide (625 mg, 3.51 2024202700   24 Apr 2024 mmol) at RT and the reaction mixture was stirred for 15 h at RT. EtOAc (10 mL) and H-2O (10 mL) were then added for the workup. The EtOAc layer was separated and washed with a saturated Na2S20s aqueous solution followed by brine. The EtOAc layer was then dried using Na2SO4 and evaporated. The crude product was purified by ISCO flash 5 column chromatography (eluting with 20% EtOAc in hexanes) to afford 200 mg (42% over 2 steps) of product as a 4:1 mixture of regioisomers. The major isomer was assigned as 4-bromo-5-isopropyl-3-methylisoxazole and the minor isomer as 4-bromo-3-isopropyl-5-methylisoxazole. LCMS method A: tR = 1.787; [M]+ = 204.25 and 206.26. 'H NMR (CDCh): major isoxazole regioisomer (4-bromo-5-isopropyl-3- 10 methylisoxazole) 3 3.21-3.14 (m, 1H), 2.26 (s, 3H), 1.32 (d, J= 7.2 Hz, 6H). Step 3. 5-isopropyl-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoxazole and 3-isopropyl-5-methyl-4-(4,4,5,5-tetramethyl-l, 3,2-dioxaborolan-2-yl)isoxazole 15          A mixture of 4-bromo-5-isopropyl-3-methylisoxazole (4:1 mixture of regioisomers from Step 2, 100 mg, 0.49 mmol), pinacol borane (0.11 mL, 0.78 mmol), PdC12(MeCN)2 (3 mg, 2 mol%), SPhos ligand (10 mg, 5 mol%) and EtsN (0.24 mL, 1.72 mmol) in dioxane (2 mL) was heated at 100 °C in a sealed vial under a blanket of N2 for 1 h. The reaction mixture was cooled to RT, filtered through a plug of celite and 20 evaporated. The crude residue was purified using ISCO flash column chromatography (eluting with 20% EtOAc in hexanes) to afford 100 mg of 5-isopropyl-3-methyl-4-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)isoxazole and 3-isopropyl-5-methyl-4-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)isoxazole as a 4:1 mixture of regioisomers and used in the next step without further purification. Step 4. tert-butyl 6-(5-bromopyrimidm-4-yl)-2,6-diazaspiro[3.3]heptane-2-carboxylate 2024202700   24 Apr 2024 Boc A suspension of 5-bromo-4-chloropyrimidine (1.67 g, 8.65 mmol), tert-butyl 2,6-diazaspiro[3.3]heptane-2-carboxylate hemioxalate salt (2 g, 4.12 mmol) and iPr2NEt (1.80 mL, 10.3 mmol) in iPrOH (10 mL) was heated at reflux for 15 h. Saturated NH4CI 5 aqueous solution (10 mL) and EtOAc (20 mL) were added to the reaction for the workup. The EtOAc layer was separated and the aqueous layer was extracted again with EtOAc. The EtOAc layers were combined, washed with water, then brine, and dried using Na2SO4. Evaporation of the EtOAc gave tert-butyl 6-(5-bromopyrimidin-4-yl)-2,6-diazaspiro[3.3]heptane-2-carboxylate as an off-white foamy solid (2 grams, 70%) that 10 was nearly pure by LCMS analysis and used directly for the next step without further purification. LCMS method A: tR = 1.330 min; [M + H]+ = 355.41 and 357. Step 5. tert-butyl 6-(5-((2-chloro-4-fluorophenyl)ammo)pyrimidm-4-yl)-2,6-diazaspiro[3.3]heptane-2-carboxylate A mixture of tert-butyl 6-(5-bromopyrimidin-4-yl)-2,6-diazaspiro[3.3]heptane-2-carboxylate (100 mg, 0.28 mmol), 2-chloro-4-fluoroaniline (39 mg, 0.27 mmol), Pd2(dba)3 (5 mg, 0.005 mmol), Xphos (11 mg, 0.023 mmol) and NaOtBu (60 mg, 0.63 mmol) in toluene (2 mL) was heated in a CEM microwave at 160 °C for 30 min. Upon 20 cooling, the reaction was diluted with 5 mL of EtOAc and filtered through a plug of celite. Evaporation of the solvents gave a crude solid which was triturated overnight using hexanes. Filtration of the solid material afforded 92 mg (79%) of tert-butyl 6-(5-((2-chloro-4-fluorophenyl)amino)pyrimidin-4-yl)-2,6-diazaspiro[3.3]heptane-2- 2024202700   24 Apr 2024 carboxylate which was nearly pure by LCMS analysis and used directly in the next step without further purification. LCMS method A: tR = 1.411; [M + H]+ = 420.54 and 422.55. 5 Step 6. tert-butyl 6-(5-((4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)amino)pyrimidin-4-yl)-2,6-diazaspiro[3.3]heptane-2-carboxylate and tert-butyl 6-(5-((4-fluoro-2-(3-isopropyl-5-methylisoxazol-4-yl)phenyl)amino)pyrimidin-4-yl)-2,6-diazaspiro[3.3]heptane-2-carboxylate Boc                    Boc N                     N 10          A mixture of tert-butyl 6-(5-((2-chloro-4-fluorophenyl)amino)pyrimidin-4-yl)- 2,6-diazaspiro[3.3]heptane-2-carboxylate (35 mg, 0.083 mmol) and 5-isopropyl-3-methyl-4-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)isoxazole and 3-isopropyl-5-methyl-4-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)isoxazole as a 4:1 mixture of isomers (Step 3, 21 mg, 0.083 mmol), K3PO4 (53 mg, 0.25 mmol) and SPhos- 15 palladacycle (CAS#: 1375325-64-6, 3 mg, 0.004 mmol) in dioxane / H2O (1 mL / 0.40 mL) was heated to 120 °C for 15 min in a CEM microwave. Upon cooling, the reaction mixture was filtered through celite and evaporated. Purification by ISCO flash column chromatography (eluting with 100% EtOAc) gave tert-butyl 6-(5-((4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)amino)pyrimidin-4-yl)-2,6- 20 diazaspiro[3.3]heptane-2-carboxylate as the major isoxazole isomer (4:1 mixture) from the isomeric mixture of starting materials. This isomeric mixture of products was used directly for the next step without further purification. LCMS method A: tR = 1.367; [M + H]+= 509.70. 25 Step 7. N-(4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)-4-(2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine and N-(4-fluoro-2-(3-isopropyl-5-methylisoxazol-4-yl)phenyl)-4-(2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine 2024202700   24 Apr 2024 To a solution of tert-butyl 6-(5-((4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)amino)pyrimidin-4-yl)-2,6-diazaspiro[3,3]heptane-2-carboxylate and tert-butyl 6-(5-((4-fluoro-2-(3-isopropyl-5-methylisoxazol-4-yl)phenyl)amino)pyrimidin-4-yl)-2,6- 5 diazaspiro[3.3]heptane-2-carboxylate (4:1 mixture of isoxazole regioisomers from Step 6, 40 mg, 0.079 mmol) in DCM (3 mL) was added TFA (1 mL) at RT. The reaction stirred for 1 h at RT and the solvents were then removed. DCM (2 mL) and EtsN (0.05 mL) were added to form the free base amine from the TFA salt. Evaporation of the solvents and drying under high vacuum gave A-(4-fluoro-2-(5-isopropyl-3-methylisoxazol-4- 10 yl)phenyl)-4-(2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine and A-(4-fluoro-2-(3-isopropyl-5-methylisoxazol-4-yl)phenyl)-4-(2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine as the free base (4:1 mixture of isoxazole regioisomers). This material was used directly for the next step without further purification. 15 Step 8. N-(4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)-4-(6-((tetrahydro-2H-pyran-4-yl)methyl)-2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine and N-(4-fluoro-2-(3-isopropyl-5-methylisoxazol-4-yl)phenyl)-4-(6-((tetrahydro-2H-pyran-4-yl)methyl)-2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine To a solution of crude A-(4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)- 20   4-(2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine and A-(4-fluoro-2-(3-isopropyl-5- methylisoxazol-4-yl)phenyl)-4-(6-((tetrahydro-2H-pyran-4-yl)methyl)-2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine (4:1 mixture of isoxazole regioisomers from Step 7, 0.079 mmol) and tetrahydro-2 / 7-pyran-4-carbaldehyde (27 mg, 0.24 mmol) in dichloroethane (2 mL, containing 1% AcOH) was added NaBH(OAc)3 (50 mg, 0.24 25 mmol) at RT. The reaction mixture was stirred for 30 min and was complete by LCMS analysis. Evaporation of the solvent followed by purification using HPLC method A afforded A-(4-fluoro-2-(5-isopropyl-3-methylisoxazol-4-yl)phenyl)-4-(6-((tetrahydro-2H- 2024202700   24 Apr 2024 pyran-4-yl)methyl)-2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine TFA salt and N-(4-fluoro-2-(3-isopropyl-5-methylisoxazol-4-yl)phenyl)-4-(6-((tetrahydro-2H-pyran-4-yl)methyl)-2,6-diazaspiro[3.3]heptan-2-yl)pyrimidin-5-amine TFA salt as a 4:1 mixture of isoxazole regioisomers (15 mg). LCMS method B: tR = 1.124; [M + H]+ = 507.70. 5         Example 14A: major isoxazole regioisomer LCMS method B: tR = 1.013; [M + H]+= 507.70 XH NMR (CD3OD). 3 8.55 (bs, 1H), 7.79 (bs, 1H), 7.17-7.12 (m, 1H), 7.00 (dd, J= 3.2, 8.8 Hz, 1H), 6.83 (dd, J= 5.2, 9.2 Hz, 1H), 4.60-4.35 (m, 8H), 3.93 (dd, J= 4.0, 11.6 Hz, 2H), 3.40 (t, J= 11.6 Hz, 2H), 3.11 (d, 7= 7.2 Hz, 2H), 3.07-3.00 (m, 1H), 2.17 (s, 3H), 1.93-1.87 (m, 1H), 1.60 (d, 7= 11.6 Hz, 2H), 1.37-1.20 (m, 1H), 1.27 (d,7 = 10   6.4 Hz, 3H), 1.26 (d, 7= 6.4 Hz, 3H), 1.21-1.16 (1H, m). Example 14B: minor isoxazole regioisomer LCMS method B tR = 1.124; [M + H]+ = 507.70. Example 15. 15 N-(5-fluoro-2'-isopropyl-[l,l'-biphenyl]-2-yl)-4-(6-((tetrahydro-2H-pyran-4- yl)methyl)-2,6-diazaspiro [3.3] heptan-2-yl)pyrimidin-5-amine The title product was synthesized by the method described in Examples 14A-14B. In Step 3, 2-isopropyl phenyl boronic acid was used. LCMS Method G: Rt = 4.88 min; 20 M+H+ = 502.85. 'H NMR (d4-MeOH) 8.45 (s, 1H), 7.72, (s, 1H), 7.47 (d, 1H), 7.42 (m, 1H), 7.28 (m, 1H), 7.20 (d, 1H), 7.07 (m, 1H), 6.92 (m, 1H), 6.81 (m, 1H), 4.32 - 4.56 (m, 8H), 3.94 (m, 2H), 3.39 (m, 2H), 3.11 (d, 2H), 2.82 (m, 2H), 1.86 (m, 1H), 1.59 (d, 2H), 1.33 (m, 2H), 1.20 (d, 3H), 1.13 (d, 3H) ppm. 25 Example 16. 2024202700   24 Apr 2024 5-fluoro-2-((4-(2-(2-hydroxy-2-methylpropyl)-2,7-diazaspiro[3.5]nonan-7-yl)pyrimidin-5-yl)amino)-N,N-diisopropylbenzamide N Step 1. 2-((4-(2-(tert-butoxycarbonyl)-2,7-diazaspiro[3.5]nonan-7-yl)pyrimidin-5- 5 yl)amino)-5-fluorobenzoic acid Boc N To a round bottom flask was added tert-butyl 7-(5-iodopyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane-2-carboxylate (Example 71, Step 1, 500 mg, 1 eq.), 2-amino-5-fluorobenzoic acid (216 mg, 1.2 eq), Pd2(dba)3 (21 mg, 0.02 eq.), Xantphos (54 mg, 0.08 10 eq.) and CS2CO3 (1.33 g, 3.5 eq.). To this solid mixture was added dioxane (8 mL, 0.15 M with respect to tert-butyl 7-(5-iodopyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane-2-carboxylate). The heterogenous solution was purged with a nitrogen stream for 1 min The flask was capped and the reaction was heated overnight at 100 °C. The CS2CO3 was then filtered off and the filtrate was diluted with EtOAc and 0.5 M HC1 was added. The 15 resulting while solid was filtered and dried over vacuum. Yield: 400 mg. Step 2. tert-butyl 7-(5-((2-(diisopropylcarbamoyl)-4-fluorophenyl)amino)pyrimidin-4-yl)- 2024202700   24 Apr 2024 Boc N To a round bottom flask were added 2-((4-(2-(tert-butoxycarbonyl)-2,7-diazaspiro[3.5]nonan-7-yl)pyrimidin-5-yl)amino)-5-fluorobenzoic acid (500 mg) and HOBt (184 mg). To this solid mixture was added DMF (3.65 mL), diisopropylamine (1 5 mL) and diisopropyl ethyl amine (209 pL), followed by BOP reagent (532 mg, 1.1 eq.) and the mixture was stirred overnight. The mixture was then partitioned between EtOAc and water. The phases were separated and the aqueous phase was back-extracted with EtOAc twice. The combined organic phases were dried over magnesium sulfate and concentrated. The crude material was purified by flash chromatography (40 g SiO2, 10 MeOH / DCM as the eluents) yielding tert-butyl 7-(5-((2-(diisopropylcarbamoyl)-4-fluorophenyl)amino)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane-2-carboxylate (300 mg). Step 3. 5-fluoro-2-((4-(2-(2-hydroxy-2-methylpropyl)-2,7-diazaspiro[3.5]nonan-7-yl)pyrimidin-5-yl)amino)-N,N-diisopropylbenzamide 15          To a round bottom flask was added tert-butyl 7-(5-((2-(diisopropylcarbamoyl)-4- fluorophenyl)amino)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane-2-carboxylate (300 mg), DCM (5 mL), and TFA (5 mL) and the reaction mixture was stirred for 30 min at RT. The volatiles were then removed under vacuum. The crude residue was co-evaporated with DCM twice yielding 2-((4-(2,7-diazaspiro[3.5]nonan-7-yl)pyrimidin-5-yl)amino)-5- 20 fluoro-N,N-diisopropylbenzamide bis-TFA salt. To a round bottom flask was added the bis-TFA salt (20 mg), 2,2-dimethyl oxirane (11 mg), tri ethylamine (21 pL) and THF: ethanol (2 mL, 1:1 ratio). The flask was capped and the mixture was heated at 65 °C overnight. When the reaction was complete, the volatiles were removed under vacuum. The crude material was purified by RP-HPLC method A yielding 5-fluoro-2-((4-(2-(2- 25 hydroxy-2-methylpropyl)-2,7-diazaspiro[3.5]nonan-7-yl)pyrimidin-5-yl)amino)-N,N-diisopropylbenzamide (3.7 mg). LCMS method G Rt = 3.65 min; (M+H)+ = 513.61. 'H 2024202700   24 Apr 2024 NMR (d4-MeOH) 8.52 (s, 1H), 7.87 (s, 1H), 7.07 - 7.15 (m, 2H), 6.93 (m, 1H), 4.23 (d, 2H), 4.04 (d, 2H), 3.82 - 3.89 (m, 6H), 1.93 - 1.99 (m, 4H), 1.26 - 1.34 (m, 18H). Example 17. 5 5-((7-(5-(2-(dimethylphosphoryl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro [4.4] nonan-2-yl)methyl)-lH-benzo [d] imidazol-2(3H)-one Step 1. tert-Butyl 7-(5-(2-(dimethylphosphoryl)-4-fluorophenoxy)pyrimidm-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate Boc l N To a mixture of tert-butyl 7-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate (Intermediate 11, 200 mg, 0.41 mmol), (CHa^PO (35 mg, 0.45 mmol), K3PO4 (104 mg, 0.49 mmol) in anhydrous DMF (3 mL) was added Pd(OAc)2 (1.0 mg, 0.004 mmol) and Xantphos (4.0 mg, 0.006 mmol) and the reaction 15 was stirred at 150 °C under a microwave for 30 min. The reaction was filtered through a Celite pad and concentrated under reduced pressure to afford the residue which was purified by column chromatography on silica gel (eluting with di chloromethane: methanol = 1:0-10: 1) to afford tert-butyl 7-(5-(2-(dimethylphosphoryl)-4- 2024202700   24 Apr 2024 fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[4.4]nonane-2-carboxylate as light yellow oil. Yield: 120 mg. LCMS method E: Rt = 0.836 min.(M+H)+ = 491.2. Steps 2-3. 5-((7-(5-(2-(dimethylphosphoryl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7- 5 diazaspiro [4.4]nonan-2-yl)methyl)-lH-benzo[d]imidazol-2(3H)-one Steps 2-3 were performed according to the procedures of Steps 4-5 of Example 1. LCMS method E: Rt =1.344 min; (M+H)+ = 537.2. 'H NMR (CD3OD): 3 8.34 (s, 1 H), 7.89 (s, 1 H), 7.61 (m, 1 H), 7.22-7.60 (m, 1 H), 6.96-7.00 (m, 3 H), 6.73-6.77 (m, 1 H), 3.59 (s, 6 H), 2.43-2.67 (m, 4 H), 1.90 (d, J= 14 Hz, 8 H), 1.78 (t, J= 6.4 Hz, 2 H). 19F 10 NMR (CD3OD): 3 -120.92. Example 18. 2-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-N-(4-fluorobenzyl)-5-oxa-2-azaspiro [3.4] octan-7-amine To a solution of tert-butyl 7-oxo-5-oxa-2-azaspiro[3.4]octane-2-carboxylate (300 mg, 1.32 mmol) in DCM (3 mL) was added TFA (1 mL) at RT and the reaction mixture 20 was stirred for 1 h at RT. The solvents were removed to afford 5-oxa-2- azaspiro[3.4]octan-7-one TFA salt which was used directly for the next step without further purification. LCMS Method A: tR = 0.269 min; [M+H]+ = 128.28. 2024202700   24 Apr 2024 Step 2. 2-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-5-oxa-2-azaspiro[3.4]octan-7- one 5          A mixture of 5-oxa-2-azaspiro[3.4]octan-7-one TFA salt (168 mg, 1.32 mmol), 5- (2-bromo-4-fluorophenoxy)-4-chloropyrimidine (Intermediate 1, 481 mg, 1.58 mmol) and iPr2NEt (0.92 mL,5.28 mmol) in iPrOH (3 mL) was heated at 100 °C for 12 h. Purification using ISCO flash column chromatography (eluting with 10% MeOH in DCM) gave 406 mg of 2-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-5-oxa-2- 10 azaspiro[3.4]octan-7-one. LCMS Method A: tR = 0.961 min; [M+H]+ = 394.35 and 396.37. Step 3. 2-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidm-4-yl)-5-oxa-2-azaspiro[3.4Joctan-7-one A mixture of 2-(5-(2-bromo-4-fluorophenoxy)pyrimidin-4-yl)-5-oxa-2-azaspiro[3.4]octan-7-one (147 mg, 0.37 mmol), (4-isopropylpyrimidin-5-yl)boronic acid (93 mg, 0.56 mmol), PdC12(PPh3)2 (26 mg, 0.037 mmol) and K3PO4 (237 mg, 1.12 mmol) in dioxane (2.5 mL) and water (0.25 mL) was heated at 120 °C in a CEM microwave for 20   2 h. The mixture was filtered through celite and evaporated. Purification using ISCO flash column chromatography (eluting with 10% MeOH in DCM) gave 151 mg of 2-(5- 2024202700   24 Apr 2024 (4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-5-oxa-2-azaspiro[3.4]octan-7-one. LCMS Method A: tR = 0.926 min; [M+H]+ = 436.48. Step 4. 2-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-N-(4- 5 fluorobenzyl) -5-oxa-2-azaspiro[3.4Joctan- 7-amine To a solution of 2-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-5-oxa-2-azaspiro[3.4]octan-7-one (14 mg, 0.03 mmol) and (4-fluorophenyl)methanamine (0.006 mL, 0.047 mmol) in MeOH (2 mL) was added NaBHsCN (8 mg, 0.12 mmol) and the reaction mixture was stirred at 50 °C for 6 h. 1 o Evaporation of the solvent and purification using a Gilson HPLC afforded 4.6 mg of 2-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-N-(4-fluorobenzyl)-5-oxa-2-azaspiro[3.4]octan-7-amine TFA salt. LCMS Method A: tR = 0.572 min; [M+H]+= 545.60. ^NMR (CD3OD): 3 9.10 (s, 1H), 8.57 (s, 1H), 8.21 (s, 1H), 7.69 (s, 1H), 7.38-7.34 (m, 2H), 7.30-7.22 (m, 2H), 7.10-7.03 (m, 3H), 4.19 (bs, 1H), 4.14-4.03 15   (m, 3H), 3.91 (dd, J= 6.0, 9.0 Hz, 1H), 3.75 (d, J= 6.4 Hz, 2H), 3.71-3.66 (m, 1H), 3.46 3.41 (m, 1H), 3.08-3.01 (m, 1H), 2.35-2.30 (m, 1H), 2.08-2.02 (m, 1H), 1.19 (d, 7=6.8 Hz, 6H). Example 19. 20 4-(((2-(5-((5-fluoro-2'-isopropyl-[l,r-biphenyl]-2-yl)oxy)pyrimidin-4-yl)-5-oxa-2-azaspiro[3.4]octan-7-yl)amino)methyl)benzonitrile CN The title compound was synthesized according to the method described for Example 18. In Step 3, 2-isopropylphenyl boronic acid was used. In Step 4, 4- 2024202700   24 Apr 2024 cyanobenzaldehyde was used. LCMS method A: Rt = 1.125 min; (M+H)+ = 550.68. 'H NMR (CD3OD): 3 8.12 (s, 1H), 7.70 (d, J= 7.6 Hz, 2H), 7.55 (d, J= 7.6 Hz, 2H), 7.387.32 (m, 2H), 7.21-7.05 (m, 5H), 4.19-4.09 (m, 2H), 4.03-3.97 (m, 2H), 3.92-3.87 (m, 1H), 3.87-3.82 (m, 2H), 3.67 (dd, J= 4.8, 9.0 Hz, 1H), 3.40 (bs, 1H), 2.84-2.78 (m, 1H), 5   2.29-2.22 (m, 1H), 2.05-2.01 (m, 2H), 1.11-1.08 (m, 6H). Example 20. 7-(5-(4-fluoro-2-(4-isopropylpyrimidin-5-yl)phenoxy)pyrimidin-4-yl)-N-(4-fluorobenzyl)-l-oxa-7-azaspiro [4.4] nonan-3-amine F The title compound was synthesized starting with tert-butyl 3-oxo-l-oxa-7-azaspiro[4.4]nonane-7-carboxylateaccording to the method described for Example 18. LCMS Method A: tR =0.585; [M+H]+ = 559.61.¾ NMR (CD3OD): 3 9.10 (s, 1H), 8.57 (s, 1H), 8.21 (s, 1H), 7.78 (s, 1H), 7.41-7.35 (m, 2H), 7.28-7.20 (m, 2H), 7.09-6.95 (m, 15   3H), 4.42 (bs, 1H), 3.97-3.47 (m, 8H), 3.12-3.05 (m, 1H), 2.27-2.23 (m, 1H), 2.18-2.10 (m, 1H), 1.99-1.81 (m, 2H), 1.24-1.19 (m, 6H). Example 21. 5-fluoro-N-isopropyl-N-methyl-2-((4-(7-(((lr,4r)-4- 20 (methylcarbamoyl)cyclohexyl)methyl)-2,7-diazaspiro [3.5] nonan-2-yl)pyrimidin-5-yl)oxy)benzamide 2024202700   24 Apr 2024 Step 1. methyl (lr,4r)-4-((2-(5-(4-fluoro-2- (isopropyl(methyl)carbamoyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonan-7-yl)methyl)cyclohexane-l-carboxylate The title compound was synthesized by reductive amination between 2-((4-(2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N-isopropyl-N-methylbenzamide (0.18 mmol) and methyl (lr,4r)-4-formylcyclohexane-l-carboxylate (100 pL) by the method described for Example 18, Step 4. LCMS method B: Rt = 0.73 10 min, (M+H)+= 568.5. Step 2. (Ir, 4r)-4-((2-(5-(4-fluoro-2-(isopropyl(methyl)carbamoyl)phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5Jnonan- 7-yl)methyl)cyclohexane-l-carboxylic acid 2024202700   24 Apr 2024 To a solution of methyl (lr,4r)-4-((2-(5-(4-fluoro-2-(isopropyl(methyl)carbamoyl) phenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonan-7-yl)methyl)cyclohexane-l-carboxylate (30 mg, 0.053 mmol) in MeOH (1 mL), there was added 2 N LiOH solution 5   (0.2 mL). The solution was stirred at RT overnight, the solvent was removed to dryness, and the residue was used for next step without purification; LCMS method B: Rt = 0.63 min, (M+H)+ = 554.6. Step 3. 5-fluoro-N-isopropyl-N-methyl-2-((4-(7-(((lr,4r)-4- 10 (methylcarbamoyl)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy) benzamide To a solution of the crude product from Step 2 in DMF (0.5 mL) was added MeNH2HCl (15 mg) and EtsN (200 pL), followed by HATU (20 mg) and the resulting solution was stirred at RT for 30 min. The product was purified by preparative RP-HPLC 15 Method A to give 5-fluoro-N-isopropyl-N-methyl-2-((4-(7-(((lr,4r)-4- (methylcarbamoyl)cyclohexyl)methyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)benzamide as a TFA salt (7 mg); LCMS method B: Rt = 0.60 min, (M+H)+ = 567.6; 'HNMR (MeOH-J4): b 8.38, 8.37 (s, 1 H), 7.73, 7.61 (br.s, 1 H), 7.24-7.12 (m, 3 H), 4.65 (m, 1 H), 4.52-3.96 (m, 4 H), 3.45 (m, 2 H), 2.88 (m, 4 H), 2.82, 2.68 (two s, 3 20   H), 2.58 (s, 3 H), 2.16 (m, 2 H), 2.08-1.88 (m, 3 H), 1.74 (m, 5 H), 1.41 (m, 2 H), 1.12 0.92 (m, 8 H). Examples 22A and 22B. 2024202700   24 Apr 2024 2-((4-(7-amino-7-(4-cyanobenzyl)-2-azaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5- fluoro-N,N-diisopropylbenzamide (Isomers 1-2) Step 1. tert-butyl 7-(4-bromobenzyl)-7-((tert-butylsulfmyl)amirio)-2- 5   azaspiro [4.4]nonane-2-carboxylate To a solution of tert-butyl-7-((tert-butylsulfinyl)imino)-2-azaspiro[4.4]nonane-2-carboxylate (Examples 250A-250B, Step 1, 0.73 g, 2.13 mmol) in THF (15 mL) at 0 °C, 4-bromo-benzylmagnesium bromide (0.25M in Et2O, 20 mL) was added, the solution was 10 to warmed to RT. After 2 h, another 20 mL Grignard reagent was added and the mixture was stirred for another 2 h. The reaction was quenched reaction with sat. NH4CI and organic layer was separated. The aqueous layer was extracted with EtOAc (2x5 mL), the combined organic layers were dried over Na2SO4, and concentrated under vacuum. The residue was purified by silica gel column to give tert-butyl 7-(4-bromobenzyl)-7-((tert- 15 butylsulfmyl)amino)-2-azaspiro[4.4]nonane-2-carboxylate (174.4 mg, 16%). LCMS method B: Rt = 2.22 min; (M+H)+ = 513.6. Step 2. tert-butyl 7-((tert-butylsulfmyl)amino)-7-(4-cyanobenzyl)-2-azaspiro[4.4]nonane-2-carboxylate 2024202700   24 Apr 2024 Boc CN To a solution of tert-butyl 7-(4-bromobenzyl)-7-((tert-butylsulfmyl)amino)-2-azaspiro[4.4]nonane-2-carboxylate (88.4 mg, 0.17 mmol) in anhydrous DMF (0.5 mL), there was added Zn(CN)2 (20 mg, 0.17 mmol) and Pd(PPh3)4 (20 mg, 0.02 mmol). The 5 resulting solution was degassed, and heated at 110 °C under N2 in an oil bath overnight. The reaction was cooled, diluted with EtOAc, washed with IN HC1 (5 mL), brine, and dried over Na2SO4. After removing the solvent, the residue was purified by silica gel column (0-9% MeOH / DCM) to give tert-butyl 7-((tert-butylsulfmyl)amino)-7-(4-cyanobenzyl)-2-azaspiro[4.4]nonane-2-carboxylate (56 mg, 72%). LCMS method B: Rt = 10   1.67 min; (M+H)+ = 460.6. Step 3: 4-((7-amino-2-azaspiro[4.4]nonan-7-yl)methyl)benzonitrile NH2 H        CN To a solution of tert-butyl 7-((tert-butylsulfmyl)amino)-7-(4-cyanobenzyl)-2- 15 azaspiro[4.4]nonane-2-carboxylate (56 mg, 0.12 mmol) in DCM (2 mL) was added TFA (50 pL), and the resulting solution was stirred at RT overnight to give 4-((7-amino-2-azaspiro[4.4]nonan-7-yl)methyl)benzonitrile. The solvent was removed and the resulting residue was used in the next step without purification. LCMS method B: Rt = 0.32 min; (M+H)+ = 256.6. 20 Step 4. 2-((4-(7-amino- 7-(4-cyanobenzyl)-2-azaspiro [4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (Isomers 1-2) To a solution of the crude product from Step 3 in isopropanol (0.5 mL), was added 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide 2024202700   24 Apr 2024 (Intermediate 41,30 mg) and EtsN (200 pL), the resulting solution was heated in a CEM microwave reactor at 110 °C for 1 hr. The reaction was cooled down to RT, and purified by preparative RP-HPLC method A to give: Isomer 1 as TFA salt (1.22 mg); LCMS method B: Rt = 0.83 min; (M+H)+ = 5   571.4. 1HNMR(MeOH-J4): 3 8.49 (s, 1 H), 7.92 (s, 1 H), 7.70 (m, 2H), 7.47 (d, 7=6.8 Hz , 2 H), 7.19 (m, 2 H), 7.07 (br, 1 H), 4.04-3.66 (m, 4 H), 3.61 (m, 2 H), 3.26 (m, 1 H), 3.08 (s, 2 H), 2.28-1.76 (m, 8 H), 1.49 (m, 3 H), 1.40 (m, 3 H), 1.17 (d, J= 7.6 Hz, 3 H), 1.10 (m, 3 H); and Isomer 2 as TFA salt (1.36 mg); LCMS method B: Rt = 0.89 min; (M+H)+ = 10   571.4. 1HNMR(MeOH-J4): d 8.36 (s, 1 H), 7.86 (br, 1 H), 7.57 (d, J= 8 Hz, 2H), 7.32 (d, 7=7.6 Hz , 2 H), 7.04 (d, 7= 7.6 Hz, 2 H), 6.96 (br, 1 H), 3.80-3.48 (m, 5 H), 3.18 (m, 1 H), 2.94 (s, 2H), 2.05 (m, 2 H), 1.86-1.58 (m, 4 H), 1.49 (m, 2 H), 1.34 (d,7=6.8 Hz, 3 H), 1.24 (d, 7= 6. 4 Hz, 3 H), 1.02 (d, 7= 6.8 Hz, 3 H), 0.94 (d, 7= 6.8 Hz, 3 H). 15 Examples 23A-23C. 5-fluoro-2-((4-(7-hydroxy-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro [4.4] nonan-2-yl)pyrimidin-5-yl)oxy)-N,N-diisopropylbenzamide (Isomers 1-3) OH 20 Step 1. tert-butyl-7-oxo-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methylene)-2-azaspiro [4.4]nonane-2-carboxylate O 2024202700   24 Apr 2024 To a solution of tert-butyl 7-oxo-2-azaspiro[4.4]nonane-2-carboxylate (0.28 g, 1.17 mmol) and 2-oxo-2,3-dihydro-lH-benzo[d]imidazole-5-carbaldehyde (Intermediate 40, 0.23 g, 1.29 mmol) in DMSO ( 3 mL), there was added L-proline (40 mg), 3-ethyl-l-methyl-lH-imidazol-3-ium 2,2,2-trifluoroacetate ([EMIm][CF3COO]) (79 mg, 0.35 5 mmol) and H2O (0.32 g). The resulting mixture was heated at 80 °C for 4 days, cooled to RT, diluted with H2O (5 mL), and extracted with EtOAc (4x5 mL). The combined organic layers were concentrated, and the residue was purified by silica gel column (04% MeOH / DCM) to give tert-butyl -7-oxo-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methylene)-2-azaspiro [4.4]nonane-2-carboxylate (-190 mg, -42%, with the 10 aldehyde starting material still present); LCMS method B: Rt = 1.16 min; (M-55)+ = 328.3; 'HNMR (MeOH-t / 4): 3 9.62 (br 1 H), 9.46 (br, 1 H), 7.40 (s, 1 H), 7.18 (d, J = 6.8 Hz, 1 H), 7.03 (d, J = 6.8 Hz, 1 H), 5.24 (s, 1 H), 3.40 (m, 2 H), 3.28, 3.20 (two s, 2 H), 2.88 (s, 2 H), 2.40 (s, 2 H), 1.80 (m, 2 H), 1.4, 1.40 (two s, 9 H). 15 Step 2. tert-butyl 7-hydroxy-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate and tert-butyl 7-oxo-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate To a solution of tert-butyl-7-oxo-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-20 yl)methylene)-2-azaspiro [4.4]nonane-2-carboxylate (130 mg) in MeOH (10 mL), was added Pd-C (10 mg), and the solution was stirred at RT with a H2 balloon overnight. LCMS showed a mixture of tert-butyl 7-hydroxy-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate and tert-butyl 7-oxo-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-25 carboxylate. The reaction mixture was filtered through a Celite pad, and solvent was removed under vacuum. The residue was purified by a silica gel column (3-7% MeOH / DCM) to give tert-butyl 7-oxo-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate (-50 mg); LCMS method B: Rt = 1.17 2024202700   24 Apr 2024 min; (M-55)+ = 330.3; and tert-butyl 7-hydroxy-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate (~80 mg); LCMS method B: Rt= 1.17 min; (M-55)+ = 332.3. 5 Step 3. 5-((8-hydroxy-2-azaspiro[4.4]nonan-7-yl)methyl)-l,3-dihydro-2H- benzo[d]imidazol-2-one To a solution of tert-butyl 7-hydroxy-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate (20 mg, 0.052 10 mmol) in DCM (0.5 mL), was added TFA (0.2 mL) and the solution was stirred at RT for half an h. The solvent was then removed to dryness to give a TFA salt of 5-((8-hydroxy-2-azaspiro[4.4]nonan-7-yl)methyl)-l,3-dihydro-2H-benzo[d]imidazol-2-one, which was used for the next step without purification; LCMS method B: Rt = 0.47 min; (M+H)+ = 288.3. 15 Step 4. 5-fluoro-2-((4-(7-hydroxy-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-N,N-diisopropylbenzamide (Isomers 1-3) To a solution of the crude product from Step 3 in isopropanol (0.3 mL), there was 20 added 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (Intermediate 41, 20 mg) and EtsN (150 pL), and the resulting solution was heated in a CEM microwave reactor at 110 °C for 1 h. LC-MS showed three products at tR = 0.88, 0.90 and 0.95 min with a ratio of 1:1:5. The products were isolated by preparative RP-HPLC method A to give: 25         Isomer 1 as a TFA salt (1.4 mg), LCMS method B: Rt = 0.88 min; (M+H)+ = 603.5. 'H NMR (MeOH-J4): b 8.37 (s, 1 H), 7.68, 7.54 (two br, 1 H), 7.10 (m, 3 H), 6.84-6.72 (m, 3 H), 4.08-3.94 (m, 2 H), 3.94-3.50 (m, 5 H), 3.00-2.74 (m, 1 H), 2.52-2.26 (m, 1 H), 2.14-1.78 (m, 5 H), 1.68-1.30 (m, 6 H), 1.24-1.02 (m, 6 H), 1.02-0.82 (m, 2 H); 2024202700   24 Apr 2024 Isomer 2 as a TFA salt (0.82 mg), LCMS method B: Rt = 0.90 min; (M+H)+ = 603.5. 'H NMR (MeOH-d<): 3 8.33 (s, 1 H), 7.62, 7.50 (two br, 1 H), 7.10 (m, 3 H), 6.84-6.70 (m, 3 H), 3.98-3.54 (m, 6 H), 3.52-3.34 (m, 1 H), 3.02-2.92 (m, 1 H), 2.78, 2.48 (twobr, 1 H), 2.28 (m, 1 H), 2.08-1.92 (m, 2 H), 1.90-1.72 (m, 2 H), 1.68-1.46 (m, 2 H), 5    1.34 (m, 3 H), 1.28-0.84 (m, 7 H); and Isomer 3 as a TFA salt (5 mg), LCMS method B: Rt = 0.95 min; (M+H)+ = 603.5. NMR (MeOH-d<): 3 8.35 (s, 1 H), 7.68-7.50 (m, 1 H), 7.22-7.04 (m, 3 H), 6.77 (m, 3 H), 4.08-3.90 (m, 2 H), 3.90-3.56 (m, 4 H), 3.56-3.32 (m, 1 H), 2.76 (m, 1 H), 2.45 (m, 1 H), 2.11 (m, 1H), 1.88-1.58 (m, 4 H), 1.55-1.24 (m, 6 H), 1.22-0.98 (m, 6 H), 0.92 (br, 1 10   H), 0.84 (br, 1 H). Examples 24A-24B. 2-((4-(7-amino-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide 15 (Isomers 1-2) Step 1. tert-butyl-7-((tert-butylsulfmyl)imino)-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate 2024202700   24 Apr 2024 The title product was synthesized as a mixture of multiple diasteoroisomers according the procedure described in Examples 23A-23C, Step 1, followed by Step 1 of Examples 250A-250B, starting with tert-butyl 7-oxo-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate (see Examples 23 A-5   23C, Step 2). The title product was used for the next step without purification. LCMS method B: Rt = 1.29-1.32 min, multiple peaks; (M+H)+ = 489.4. Step 2. tert-butyl 7-((tert-butylsulfinyl)amino)-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate To a solution of the residue from Step 1 in THF (5 mL), was added NaBH4 (10 mg, 0.26 mmol), and 1 drop of water. The resulting solution was stirred at RT for two h. The reaction was quenched with ice water and extracted with EtOAc. The combined organic layers was concentrated under vacuum and the residue was purified by 15 preparative-RF HPLC method A to give two fractions of diasteoroiosmers: Fraction 1 (5.8 mg, TFA salt): LC-MS method B: Rt = 1.26 min, (M+H)+ = 491.4; Fraction 2 (18.8 mg, TFA salt): LC-MS method B: Rt = 1.32 min, (M+H)+ = 491.4. Step 3. 2-methyl-N-(8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2- 20   azaspiro [4.4Jnonan- 7-yl)propane-2-sulfmamide \ o —r~sx 1 NH To a solution of tert-butyl 7-((tert-butylsulfmyl)amino)-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonane-2-carboxylate (18.8 mg, 0.038 2024202700   24 Apr 2024 mmol, Fraction 2, Step 2) in DCM (3 mL), was added TFA (50 pL) and the resulting solution was stirred at RT overnight. EtsN was then added to the solution to neutralize the acid. Upon removing solvent, the residue was used for the next step without purification. 5 Step 4. 2-((4-(7-((tert-butylsulfmyl)amino)-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4] nonan-2-yl)pyr imidin-5-yl)oxy)-5-fluor o-N,N-diisopropylbenzamide To a solution of the crude product from Step 3 in isopropanol (0.3 mL) was added 10 2-((4-chloropyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (Intermediate 41, 20 mg) and EUN (100 pL), and the resulting solution was heated in a CEM microwave reactor at 110 °C for 1 h. The solvent was removed to give the crude product, which was used for the next step without purification; LCMS method B: Rt = 1.06 min, (M+H)+ = 706.6. 15 Step 5. 2-((4-(7-amino-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5fluoro-N,N-diisopropylbenzamide (Isomers 1-2) To the crude product from Step 4 in MeOH (2 mL) was added 6N HC1 (2 mL) 20 and the resulting solution was stirred at RT overnight. LC-MS showed two product at tr = 0.65, 0.69 min with a ratio of 1:6; The products were isolated by preparative RP-HPLC method A to give two isomers. Isomer 1 as a TFA salt (0.67 mg); LCMS method B: Rt = 0.65 min, (M+H)+ = 602.5; 'HNMR (MeOH-r / V): b 8.33, 8.31 (two s, 1 H), 7.78, 7.71 (twobr, 1 H), 7.06 (m, 2024202700   24 Apr 2024 2 H), 6.96 (m, 1 H), 6.82 (m, 1 H), 6.76 (m, 2 H), 3.78-3.62 (m, 3 H), 3.56-3.40 (m, 2 H), 3.38-3.28 (m, 1 H), 3.08-2.82 (m, 1 H), 2.58-2.12 (m, 2 H), 1.92-1.54 (m, 4 H), 1.36 (m, 6 H), 1.22 (m, 1 H), 1.06 (m, 6 H), 1.02-0.88 (m, 2 H). Isomer 2 as a TFA salt (4.24 mg); LCMS method B: Rt = 0.69 min, (M+H)+ = 5   602.5. 'H NMR (MeOH-J4): 3 8.34 (s, 1 H), 7.80 (br, 1 H), 7.09 (m, 2 H), 6.99 (m, 1 H), 6.82 (m, 1 H), 6.76 (m, 2 H), 3.84-3.62 (m, 3 H), 3.58-3.42 (m, 2 H), 3.36-3.26 (m, 1 H), 3.08-2.98 (m, 1 H), 2.45-2.12 (m, 2 H), 1.88-1.54 (m, 4 H), 1.37 (m, 6 H), 1.22 (m, 1 H), 1.05 (m, 6H), 0.95 (m, 2 H). 10 Example 25. 2-((4-(7-amino-8-((2-oxo-2,3-dihydro-lH-benzo[d]imidazol-5-yl)methyl)-2-azaspiro[4.4]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluoro-N,N-diisopropylbenzamide (Isomer 3) 15          The title compound was synthesized according to the procedure of Examples 24A-24B, using Fraction 1 (5.8 mg) prepared at Step 2 of Examples 24A-24B. LCMS method B: Rt = 0.69 min, (M+H)+ = 602.5. Examples 26A-26B. 20 5-fluoro-2-((4-(8-(4-fluorobenzyl)-7-(2-hydroxyethyl)-2,7-diazaspiro [4.4] nonan-2-yl)pyrimidin-5-yl)oxy)-N,N-diisopropylbenzamide (Isomers 1-2) 2024202700   24 Apr 2024 Step 1. Tert-butyl 7-benzyl-3-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate 5          To a solution of 7-benzyl-2,7-diazaspiro[4.4]nonan-3-one (500 mg, 2.17 mmol) in DCM (15 mL) was added BOC2O (1.04 g, 4.8 mmol) followed by portionwise addition of DMAP (662 mg, 5.4 mmol) at RT and the mixture was stirred at RT for 2 days. The reaction was quenched by addition of H2O (20 mL) and the aqueous phase was extracted with EtOAc (30 mL). The organic layers were combined, dried over Na2SO4 and 10 evaporated to afford crude product, which was purified by flash chromatography over silica gel eluting with 70% EtOAc / Hexanes to afford 400 mg tert-Butyl 7-benzyl-3-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate as a colorless oil (56% yield). LCMS Method A: tR = 0.73 min, [M+H]+ = 331.4. 15 Step 2. Tert-butyl ((l-benzyl-3-(3-(4-fluorophenyl)-2-oxopropyl)pyrrolidm-3-yl)methy I) carbamate O BocHN—. X.  '— / / -f NBn At 0 °C, to a solution of tert-butyl 7-benzyl-3-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate (280 mg, 0.85 mmol) in dry THF (2 mL) was added 0.25 M (4 20 fluorobenzyl)magnesium chloride in Et2O (5.0 mL, 1.25 mmol) slowly under N2. The mixture was stirred for 1 h at 0 °C then quenched by addition of H2O (10 mL). The mixture was then extracted with EtOAc (2 x 30 mL). The organic layers were washed with brine, dried over Na2SO4 and evaporated to afford crude product, which was 2024202700   24 Apr 2024 purified by flash chromatography over silica gel eluting with 30% EtOAc / Hexanes to afford 240 mg tert-Butyl ((l-benzyl-3-(3-(4-fluorophenyl)-2-oxopropyl)pyrrolidin-3-yl)methyl)carbamate as a colorless oil (65% yield). LCMS Method A: tR = 1.10 min, [M+H]+= 441.4. Step 3. tert-butyl 7-benzyl-3-(4-fluorobenzyl)-2,7-diazaspiro[4.4]nonane-2-carboxylate Boc To a solution of tert-butyl ((l-benzyl-3-(3-(4-fluorophenyl)-2-oxopropyl)pyrrolidin-3-yl)methyl) carbamate (240 mg, 0.55 mmol) in DCM (3 mL) was 10 added TFA (0.5 mL) at RT and the reaction mixture was stirred for 1 h at RT and then concentrated under reduced pressure. The resulting crude product was dissolved into DCM (3 mL) and neutralized with TEA, followed by addition of NaCNBEE (39 mg, 0.6 mm...

Claims

1. A compound of the following formula:or a pharmaceutically acceptable salt thereof, wherein:A, B, D, and E are each independently selected from -C(RA1XRA2)-, -C(RA1)(RA2)-C(RA1)(RA2)-, -C(Ra1)(Ra2)-O-, -C(Ra1XRa2)-NRa3- -C(=O)-, -C(Ra1)(Ra2)-C(=O)-, and -N=C(NH2)- wherein no more than one of A, B, D, and E is -C(RA1XRA2)—O- -C(Ra1XRA2)-NRA3- -C(Ra1XRA2)-C(=O)- -C(=O)-, or -N=C(NH2)—;U is N or CRU, wherein RU is H, halo, CN, OH, C1-4 alkyl, C1-4 alkoxy, amino, C1-4 alkyl amino, or C2-8 dialkylamino;W is N or CRW, wherein RW is H, halo, CN, OH, C1-4 alkyl, C1-4 alkoxy, amino, C1-4 alkyl amino, or C2-8 dialkylamino;X is NH;Y is O, S, CRY1RY2 or NRY3, wherein RY1, RY2, and RY3 are each independently selected from H and C1-4 alkyl;Z is Cy2, halo, C1-6 alkyl, C1-4 haloalkyl, C1-4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, CN, NO2, ORa3, SRa3, C(O)Rb3, C(O)NRc3Rd3, C(O)ORa3, OC(O)Rb3, OC(O)NRc3Rd3, C(=NRe3)NRc3Rd3, NRc3C(=NRe3)NRc3Rd3, NRc3Rd3, NRc3C(O)Rb3, NRc3C(O)ORa3, NRc3C(O)NRc3Rd3, NRc3S(O)Rb3, NRc3S(O)2Rb3, NRc3S(O)2NRc3Rd3, S(O)Rb3, S(O)NRc3Rd3, S(O)2Rb3, S(O)2NRc3Rd3, and P(O)Rc3Rd3 wherein said C1-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from Cy2, halo, CN, NO2, CN, NO2, ORa3, SRa3, C(O)Rb3, C(O)NRc3Rd3, C(O)ORa3, OC(O)Rb3,2024202700   25 Aug 2026OC(O)NRc3Rd3, C(=NRe3)NRc3Rd3, NRc3C(=NRe3)NRc3Rd3, NRc3Rd3, NRc3C(O)Rb3, NRc3C(O)ORa3, NRc3C(O)NRc3Rd3, NRc3S(O)Rb3, NRc3S(O)2Rb3, NRc3S(O)2NRc3Rd3, S(O)Rb3, S(O)NRc3Rd3, S(O)2Rb3, and S(O)2NRc3Rd3;each R2 and R3 is independently selected from H, halo, C1-6 alkyl, C1-4 haloalkyl, C1-4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, CN, NO2, ORa4, SRa4, C(O)Rb4, C(O)NRc4Rd4, C(O)ORa4, OC(O)Rb4, OC(O)NRc4Rd4, C(=NRe4)NRc4Rd4, NRc4C(=NRe4)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, and S(O)2NRc4Rd4, wherein said C1-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl are each optionally substituted by 1, 2, 3, or 4 substituents independently selected from halo, CN, NO2, ORa4, SRa4, C(O)Rb4, C(O)NRc4Rd4, C(O)ORa4, OC(O)Rb4, OC(O)NRc4Rd4, C(=NRe4)NRc4Rd4, NRc4C(=NRe4)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, and S(O)2NRc4Rd4;each RA1 is independently selected from H, halo, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, amino, C1-4 alkylamino, C2-8 dialkylamino, CN, NO2, and OH;each RA2 is independently selected from H, halo, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, amino, C1-4 alkylamino, C2-8 dialkylamino, CN, NO2, and OH;each RA3 is independently selected from H, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C(O)Rz, and C(O)ORz, wherein said C1-4 alkyl is optionally substituted by phenyl, C1-4 alkoxy, C1-4 haloalkoxy, CN, NO2, or OH;Rz is H, C1-4 alkyl, or phenyl;each Cy2 is independently selected from C6-14 aryl, C3-18 cycloalkyl, 5-16 membered heteroaryl, and 4-18 membered heterocycloalkyl, each of which is optionally substituted with 1, 2, 3, or 4 substituents independently selected from RCy2;each RCy2 is independently selected from halo, C1-6 alkyl, C1-4 haloalkyl, C1-4 cyanoalkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-7 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl, CN, NO2, ORa5, SRa5, C(O)Rb5, C(O)NRc5Rd5, C(O)ORa5, OC(O)Rb5, OC(O)NRc5Rd5, C(=NRe5)NRc5Rd5, NRc5C(=NRe5)NRc5Rd5, NRc5Rd5, NRc5C(O)Rb5, NRc5C(O)ORa5, NRc5C(O)NRc5Rd5, NRc5S(O)Rb5, NRc5S(O)2Rb5, NRc5S(O)2NRc5Rd5, S(O)Rb5, S(O)NRc5Rd5, S(O)2Rb5, and S(O)2NRc5Rd5, wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-7 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl are each2024202700   25 Aug 2026optionally substituted by 1, 2, 3, or 4 substituents independently selected from CN, NO2, ORa5, SRa5, C(O)Rb5, C(O)NRc5Rd5, C(O)ORa5, OC(O)Rb5, OC(O)NRc5Rd5, C(=NRe5)NRc5Rd5, NRc5C(=NRe5)NRc5Rd5, NRc5Rd5, NRc5C(O)Rb5, NRc5C(O)ORa5, NRc5C(O)NRc5Rd5, NRc5S(O)Rb5, NRc5S(O)2Rb5, NRc5S(O)2NRc5Rd5, S(O)Rb5, S(O)NRc5Rd5, S(O)2Rb5, and S(O)2NRc5Rd5;each Ra3, Rb3, Rc3, Rd3, Ra4, Rb4, Rc4, Rd4, Ra5, Rb5, Rc5, and Rd5 is independently selected from H, C1-6 alkyl, C1-4 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-6 alkyl, C3-10 cycloalkyl-C1-6 alkyl, (5-10 membered heteroaryl)-C1-6 alkyl, and (4-10 membered heterocycloalkyl)-C1-6 alkyl, wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-6 alkyl, C3-10 cycloalky-C1-6 alkyl, (510 membered heteroaryl)-C1-6 alkyl, and (4-10 membered heterocycloalkyl)-C1-6 alkyl are each optionally substituted with 1, 2, 3, 4, or 5 substituents independently selected from Rg;each Re3, Re4, and Re5 is independently selected from H, C1-4 alkyl, and CN;each Rg is independently selected from the group consisting of OH, NO2, CN, halo, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-4 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, cyano-C1-3 alkyl, HO-C1-3 alkyl, amino, C1-6 alkylamino, di(C1-6 alkyl)amino, thiol, C1-6 alkylthio, C1-6 alkylsulfinyl, C1-6 alkylsulfonyl, carboxy, aminocarbonyl, C1-6 alkylcarbonyl, and C1-6 alkoxycarbonyl;p is 0, 1, 2, or 3; andq is 0, 1, or 2;wherein any cycloalkyl or heterocycloalkyl group is optionally further substituted by 1 or 2 oxo groups.

2. A compound selected from the following:4294304322024202700   25 Aug 2026or a pharmaceutically acceptable salt thereof.

3. A compound selected from the following:thereof.and, or a pharmaceutically acceptable salt2024202700   25 Aug 20264.     A compound selected from the following:thereof., or a pharmaceutically acceptable salt

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