Structure-Based Discovery and Optimization of Benzo[<i>d</i>]isoxazole Derivatives as Potent and Selective BET Inhibitors for Potential Treatment of Castration-Resistant Prostate Cancer (CRPC)
作者:Maofeng Zhang、Yan Zhang、Ming Song、Xiaoqian Xue、Junjian Wang、Chao Wang、Cheng Zhang、Chenchang Li、Qiuping Xiang、Lingjiao Zou、Xishan Wu、Chun Wu、Baijun Dong、Wei Xue、Yulai Zhou、Hongwu Chen、Donghai Wu、Ke Ding、Yong Xu
DOI:10.1021/acs.jmedchem.8b00103
日期:2018.4.12
drug targets for treatment of castration-resistant prostate cancer (CRPC). Here, we describe the design, optimization, and evaluation of benzo[d]isoxazole-containing compounds as potent BET bromodomain inhibitors. Cocrystal structures of the representative inhibitors in complex with BRD4(1) provided solid structural basis for compound optimization. The two most potent compounds, 6i (Y06036) and 7m
作为治疗去势抵抗性前列腺癌(CRPC)的药物靶标,溴结构域和末端外(BET)家族蛋白已引起越来越多的关注。在这里,我们描述了作为强效BET溴结构域抑制剂的含苯并[ d ]异恶唑的化合物的设计,优化和评估。具有代表性的抑制剂与BRD4(1)的共晶结构为化合物优化提供了坚实的结构基础。两种最有效的化合物6i(Y06036)和7m(Y06137)以K d结合到BRD4(1)溴结构域上值分别为82和81 nM。他们还显示出比其他非BET亚家族成员更高的选择性。该化合物有效抑制前列腺癌细胞系中的细胞生长,集落形成以及AR,AR调控基因和MYC的表达。化合物6i和7m还在小鼠的C4-2B CRPC异种移植肿瘤模型中显示出治疗作用。这些有效的和选择性的BET抑制剂代表了开发针对CRPC的潜在疗法的一类新化合物。