Design and Synthesis of Poly(ADP-ribose) Polymerase Inhibitors: Impact of Adenosine Pocket-Binding Motif Appendage to the 3-Oxo-2,3-dihydrobenzofuran-7-carboxamide on Potency and Selectivity
作者:Uday Kiran Velagapudi、Marie-France Langelier、Cristina Delgado-Martin、Morgan E. Diolaiti、Sietske Bakker、Alan Ashworth、Bhargav A. Patel、Xuwei Shao、John M. Pascal、Tanaji T. Talele
DOI:10.1021/acs.jmedchem.8b01709
日期:2019.6.13
Poly(adenosine 5'-diphosphate-ribose) polymerase (PARP) inhibitors are a class of anticancer drugs that block the catalytic activity of PARP proteins. Optimization of our lead compound 1 (( Z)-2-benzylidene-3-oxo-2,3-dihydrobenzofuran-7-carboxamide; PARP-1 IC50 = 434 nM) led to a tetrazolyl analogue (51, IC50 = 35 nM) with improved inhibition. Isosteric replacement of the tetrazole ring with a carboxyl
聚腺苷5'-二磷酸核糖)聚合酶(PARP)抑制剂是一类抗癌药物,可阻断PARP蛋白的催化活性。优化我们的先导化合物1((Z)-2-亚苄基-3-氧代-2,3-二氢苯并呋喃-7-羧酰胺; PARP-1 IC50 = 434 nM)产生了四唑基类似物(51,IC50 = 35 nM)具有更好的抑制作用。用羧基等位取代四唑环(60,IC50 = 68 nM)产生了有希望的新先导,随后对其进行了优化,以获得具有有效PARP-1 IC50值(4-197 nM)的类似物。PARP酶谱分析显示,大多数化合物对PARP-2具有选择性,其IC50值可与临床抑制剂媲美。与PARP-1结合的关键抑制剂的X射线晶体结构说明了与向PARP-1腺苷结合袋延伸的类似附件的相互作用方式。化合物81,一种同工型选择性PARP-1 / -2(IC50 = 30 nM / 2 nM)抑制剂,与同基因BRCA1精制细胞相比,对乳腺