Discovery of Quinazoline-2,4(1<i>H</i>,3<i>H</i>)-dione Derivatives Containing 3-Substituted Piperizines as Potent PARP-1/2 Inhibitors─Design, Synthesis, <i>In Vivo</i> Antitumor Activity, and X-ray Crystal Structure Analysis
作者:Jie Zhou、Ming Ji、Xiaoyu Wang、Hailong Zhao、Ran Cao、Jing Jin、Yan Li、Xianhong Chen、Li Sheng、Xiaoguang Chen、Bailing Xu
DOI:10.1021/acs.jmedchem.1c01522
日期:2021.11.25
capitalizing on methyl- or ethyl-substituted piperizine ring to capture the characteristics of adenine-ribose binding site (AD site), and their unique binding features were revealed by the cocrystal structures of compounds 4 and 6 in PARP-1. The investigation on structure–activity relationship resulted in compounds 24 and 32 with high enzymatic potency, binding selectivity, and significantly longer residence
抑制 PARP-1/2 通过干扰癌细胞的 DNA 修复为癌症治疗提供了重要的武器库。新型 PARP-1/2 抑制剂是通过利用甲基或乙基取代的哌嗪环来捕获腺嘌呤-核糖结合位点 (AD 位点) 的特征而设计的,其独特的结合特征通过化合物4的共晶结构和PARP-1 中的6个。对结构-活性关系的研究导致化合物24和32对 PARP-1 的酶效价、结合选择性和比 PARP-2 显着更长的停留时间(化合物24,PARP-1:IC 50 = 0.51 nM,PARP- 2:集成电路50= 23.11 纳米; 化合物32,PARP-1:IC 50 = 1.31 nM,PARP-2:IC 50 = 15.63 nM)。此外,化合物24被确定为一种有吸引力的候选分子,其具有可接受的药代动力学特征,并在单独或联合治疗的小鼠乳腺癌异种移植模型和胶质母细胞瘤原位模型中产生显着的抗肿瘤活性。