A Fragment-Derived Clinical Candidate for Antagonism of X-Linked and Cellular Inhibitor of Apoptosis Proteins: 1-(6-[(4-Fluorophenyl)methyl]-5-(hydroxymethyl)-3,3-dimethyl-1<i>H</i>,2<i>H</i>,3<i>H</i>-pyrrolo[3,2-<i>b</i>]pyridin-1-yl)-2-[(2<i>R</i>,5<i>R</i>)-5-methyl-2-([(3R)-3-methylmorpholin-4-yl]methyl)piperazin-1-yl]ethan-1-one (ASTX660)
作者:Christopher N. Johnson、Jong Sook Ahn、Ildiko M. Buck、Elisabetta Chiarparin、James E. H. Day、Anna Hopkins、Steven Howard、Edward J. Lewis、Vanessa Martins、Alessia Millemaggi、Joanne M. Munck、Lee W. Page、Torren Peakman、Michael Reader、Sharna J. Rich、Gordon Saxty、Tomoko Smyth、Neil T. Thompson、George A. Ward、Pamela A. Williams、Nicola E. Wilsher、Gianni Chessari
DOI:10.1021/acs.jmedchem.8b00900
日期:2018.8.23
proteins (IAPs) are promising anticancer targets, given their roles in the evasion of apoptosis. Several peptidomimetic IAP antagonists, with inherent selectivity for cellular IAP (cIAP) over X-linked IAP (XIAP), have been tested in the clinic. A fragment screening approach followed by structure-based optimization has previously been reported that resulted in a low-nanomolar cIAP1 and XIAP antagonist lead
鉴于其在逃避凋亡中的作用,凋亡蛋白抑制剂(IAPs)是有前途的抗癌靶标。在临床上已经测试了几种拟肽IAP拮抗剂,它们对细胞IAP(cIAP)的选择性比对X连锁IAP(XIAP)的选择性高。先前已经报道了片段筛选方法,然后进行基于结构的优化,从而导致了低纳摩尔级的cIAP1和XIAP拮抗剂前导分子,其cIAP-XIAP谱更加平衡。我们现在报告进一步的结构引导优化的铅,以改善代谢稳定性和心脏安全性,从而提供非肽模拟拮抗剂临床候选药物27(ASTX660),目前正在1/2期临床试验中进行测试( NCT02503423)。