A novel, potent, and orally bioavailable thiazole HCV NS5A inhibitor for the treatment of hepatitis C virus
作者:Teng-Kuang Yeh、Iou-Jiun Kang、Tsu-An Hsu、Yen-Chun Lee、Chung-Chi Lee、Sheng-Ju Hsu、Ya-Wen Tian、Hui-Yun Yang、Chiung-Tong Chen、Yu-Sheng Chao、Andrew Yueh、Jyh-Haur Chern
DOI:10.1016/j.ejmech.2019.02.016
日期:2019.4
inhibitory activity. The best inhibitor 27a was found to be 3-fold more potent (GT1b EC50 = 0.003 nM) than daclatasvir (GT1b EC50 = 0.009 nM) against GT1b, and no detectable in vitro cytotoxicity was observed (CC50 > 50 μM). Pharmacokinetic studies demonstrated that compound 27a had an excellent pharmacokinetic profiles with a superior oral exposure and desired bioavailability after oral administration in both
基于小分子 HCV NS5A 抑制剂 daclatasvir 的药物化学计划导致发现了二聚体苯基噻唑化合物8,这是一种新型有效的 HCV NS5A 抑制剂。随后的 SAR 研究和优化表明,环烷基酰胺衍生物27a - 29a在皮摩尔浓度下表现出对 GT1b 的优异效力,GT1b EC 50值。有趣的是,在该类别中观察到对 HCV 抑制的高非对映特异性,其中 (1 R ,2 S ,1' R ,2' S ) 非对映异构体显示出最高的 GT1b 抑制活性。最好的抑制剂27a发现对 GT1b 的效力 (GT1b EC 50 = 0.003 nM) 是 daclatasvir (GT1b EC 50 = 0.009 nM) 的 3 倍,并且未观察到可检测到的体外细胞毒性 (CC 50 > 50 μM)。药代动力学研究表明,化合物27a具有优异的药代动力学特征,在大鼠和狗中口服给药后具有优异的口服