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[1,2,4]triazolo[1,5-a]pyridine compound and its preparation method and medical application
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A compound, triazolo technology, applied in the field of medicine
Active Publication Date: 2021-01-26
NAT INST OF PHARMA R & D CO LTD
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Abstract
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Problems solved by technology
Although a series of JAK inhibitors have been disclosed, there is still a need to develop compounds with better selectivity and efficacy
Method used
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Embodiment 1
[0217] Example 1: N-(5-(4-((1,1-dioxothiomorpholine)methyl)phenyl)-[1,2,4]triazolo[1,5-a]pyridine Preparation of -2-yl)-2-oxopyrrolidine-3-carboxamide
[0218]
[0219]
[0220] Step 1: 4-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-benzyl)thiomorpholine 1,1- Synthesis of Dioxide (Intermediate 1A)
[0221] 4-Bromomethylphenylboronic acid pinacol ester (50.00g, 16.84mmol), 1,1-dioxide thiomorpholine (27.36g, 20.24mmol), potassiumcarbonate (27.92g, 20.20mmol) were added to 250 mL of N,N-dimethylformamide was added to the reaction flask, and the reaction was stirred at 80°C for 4 hours. After cooling to room temperature, the reaction solution was poured into 1250 mL of ice water, stirred for 30 minutes, and suction filtered to obtain the title product, 47.2 g of white solid, with a yield of 79.7%.
[0222] Step 2: 4-(4-(2-Amino-[1,2,4]triazolo[1,5-a]pyridin-5-yl)benzyl)thiomorpholine 1,1-dioxide Synthesis of (Intermediate 1B)
[0223] Add 5-bromo-[1,2,4]triazolo[1...
Embodiment 2
[0228]Example 2: N-(5-(4-((1,1-dioxothiomorpholine)methyl)phenyl)-[1,2,4]triazolo[1,5-a]pyridine Preparation of -2-yl)pyrrolidine-2-carboxamide
[0229]
[0230] The same preparation method as in Example 1, except that prolyl chloride (using Boc-L-proline as raw material, reference Tetrahedron, 65 (25), 4841-4845; 2009 preparation) replaces 2-oxo-pyrrolidine -3-Formyl chloride to give the title compound.
[0231] ESI-MS[M+H](m / z):455.1.
[0232] 1 H NMR (300MHz, DMSO): δ10.38(s,1H),7.99(m,2H),7.90(m,1H),7.73(m,2H),7.53(m,2H),7.35(m,1H ),3.89(m,1H),3.73(s,2H),3.40(m,2H),3.13(m,4H),2.94(m,4H),1.74(m,4H).
Embodiment 3
[0233] Example 3: N-(5-(4-((1,1-dioxothiomorpholine)methyl)phenyl)-[1,2,4]triazolo[1,5-a]pyridine Preparation of -2-yl)-1-methylazetidine-3-carboxamide
[0234]
[0235] The preparation method is the same as in Example 1, except that 2-oxo-pyrrolidine- 3-Formyl chloride to give the title compound.
[0236] ESI-MS[M+H](m / z):455.1.
[0237] 1 H NMR(300MHz,DMSO):δ10.45(s,1H),8.01(m,2H),7.88(m,1H),7.72(m,2H),7.49(m,2H),7.36(m,1H ),3.73(s,2H),3.31-3.72(m,4H),3.39(m,1H),3.15(m,4H),2.95(m,4H),2.33(s,3H).
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Abstract
The invention relates to a [1,2,4]triazolo[1,5-a]pyridine compound, a preparation method and a medical application thereof. In particular, the present invention relates to a compound represented by general formula I, a preparation method thereof, a pharmaceutical composition containing the compound, and its use as a JAK kinase inhibitor. The compound and the pharmaceutical composition containing the compound can be used for Treatment of diseases associated with JAK kinase activity, such as inflammation, autoimmune disorders, cancer, etc. Wherein the definition of each substituent in the general formula I is the same as the definition in the description.
Description
technical field [0001] The invention belongs to the technical field of medicine, and specifically relates to a new [1,2,4]triazolo[1,5-a]pyridine compound, its preparation method and a pharmaceutical composition containing it, and its use for regulating Janus kinase (JAK) activity and use for the treatment and / or prevention of diseases associated with JAK activity. Background technique [0002] The intracellularsignal transmission process is an effective way for cells to respond to external stimuli and ultimately trigger specific biological effects. Cytokines can conduct intracellularsignal transmission through a variety of signal transduction pathways, and thus participate in the regulation of many important biological functions related to hematopoietic function and immunity. Janus kinase (JAK) family of proteintyrosine kinases and activators of transcription (STAT) play important roles in cytokinesignal transduction. [0003] The Janus kinase (JAK) family plays a rol...
Claims
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