Discovery and Biological Evaluation of <i>N</i>-Methyl-pyrrolo[2,3-<i>b</i>]pyridine-5-carboxamide Derivatives as JAK1-Selective Inhibitors
作者:Eunsun Park、Sun Joo Lee、Heegyum Moon、Jongmi Park、Hyeonho Jeon、Ji Sun Hwang、Hayoung Hwang、Ki Bum Hong、Seung-Hee Han、Sun Choi、Soosung Kang
DOI:10.1021/acs.jmedchem.0c01026
日期:2021.1.28
binding modes of current JAK inhibitors to JAK isoforms allowed the design of N-alkyl-substituted 1-H-pyrrolo[2,3-b] pyridine carboxamide as a JAK1-selective scaffold, and the synthesis of various methyl amide derivatives provided 4-((cis-1-(4-chlorobenzyl)-2-methylpiperidin-4-yl)amino)-N-methyl-1H-pyrrolo[2,3-b]pyridine-5-carboxamide (31g) as a potent JAK1-selective inhibitor. In particular, the (S,S)-enantiomer
Janus激酶1(JAK1)在大多数细胞因子介导的通过JAK / STAT信号传导的炎症和自身免疫反应中起关键作用;因此,抑制JAK1是对几种疾病的有前途的治疗策略。分析目前的JAK抑制剂与JAK同工型的结合方式,可以设计N-烷基取代的1- H-吡咯并[2,3- b ]吡啶羧酰胺作为JAK1选择性骨架,并合成各种甲基酰胺衍生物提供了4-((顺式-1-(4-氯苄基)-2-甲基哌啶-4-基)氨基)-N-甲基-1H-吡咯并[2,3 - b ]吡啶-5-甲酰胺(31g),一种有效的JAK1选择性抑制剂。特别是(31 g(38a)的S,S) -对映异构体对JAK1表现出出色的效力,并具有超过JAK2,JAK3和TYK2的选择性。在研究31g对肝纤维化的作用时,发现它降低了TGF-β诱导的肝星状细胞(HSCs)的增殖和纤维生成基因表达。具体而言,在伤口愈合试验中,31g显着抑制TGF-β诱导的0.25μMHSC迁移。