Discovery of (E)-N-(4-methyl-5-(3-(2-(pyridin-2-yl)vinyl)-1H-indazol-6-yl)thiazol-2-yl)-2-(4-methylpiperazin-1-yl)acetamide (IHMT-TRK-284) as a novel orally available type II TRK kinase inhibitor capable of overcoming multiple resistant mutants
作者:Beilei Wang、Wentao Zhang、Xuesong Liu、Fengming Zou、Junjie Wang、Qingwang Liu、Aoli Wang、Zhenquan Hu、Yongfei Chen、Shuang Qi、Zongru Jiang、Cheng Chen、Chen Hu、Li Wang、Wenchao Wang、Qingsong Liu、Jing Liu
DOI:10.1016/j.ejmech.2020.112744
日期:2020.12
Due to the critical tumorigenic role of fused NTRK genes in multiple cancers, TRK kinases have attracted extensive attention as a drug discovery target. Starting from an indazole based scaffold, through the type II kinase inhibitor fragments hybrid design approach with a ring closure strategy, we discovered a novel potent type II TRK kinase inhibitor compound 34 (IHMT-TRK-284), which exhibited IC50
由于融合的NTRK基因在多种癌症中的关键致癌作用,TRK激酶作为一种药物发现靶标已引起广泛关注。从基于吲唑的支架开始,通过具有闭环策略的II型激酶抑制剂片段杂合设计方法,我们发现了一种新型的有效II型TRK激酶抑制剂化合物34(IHMT-TRK-284),其IC 50值为10.5分别为TRKA,B和C的nM,0.7 nM和2.6 nM。此外,当在468种激酶和突变体中进行测试时,它在kinome中显示出极大的选择性(S分数(1)= 0.02在1μM时)。重要的是34可以克服ATP结合袋中的V573M和F589L以及DFG区中的G667C / S等耐药突变体。在体内,34种在小鼠,大鼠和狗等不同物种中表现出良好的PK分布。它还在TRKA / B / C,TRKA突变体和KM-12-LUC细胞介导的小鼠模型中显示出良好的体内抗肿瘤功效。针对临床上重要的TRK突变体的有效活性,加上良好的体内PK