A Potent, Selective, and Orally Bioavailable HCV NS5A Inhibitor for Treatment of Hepatitis C Virus: (<i>S</i>)-1-((<i>R</i>)-2-(Cyclopropanecarboxamido)-2-phenylacetyl)-<i>N</i>-(4-phenylthiazol-2-yl)pyrrolidine-2-carboxamide
作者:Iou-Jiun Kang、Sheng-Ju Hsu、Hui-Yun Yang、Teng-Kuang Yeh、Chung-Chi Lee、Yen-Chun Lee、Ya-Wen Tian、Jen-Shin Song、Tsu-An Hsu、Yu-Sheng Chao、Andrew Yueh、Jyh-Haur Chern
DOI:10.1021/acs.jmedchem.6b00962
日期:2017.1.12
Starting from the initial lead 4-phenylthiazole 18, a modest HCV inhibitor (EC50 = 9440 nM), a series of structurally related thiazole derivatives has been identified as a novel chemical class of potent and selective HCV NS5A inhibitors. The introduction of a carboxamide group between the thiazole and pyrrolidine ring (42) of compound 18 resulted in a dramatic increase in activity (EC50 = 0.92 nM)
从最初的铅 4-苯基噻唑18 开始,一种适度的 HCV 抑制剂 (EC 50 = 9440 nM),一系列结构相关的噻唑衍生物已被确定为一种新型化学类别的有效和选择性 HCV NS5A 抑制剂。在化合物18的噻唑和吡咯烷环 ( 42 )之间引入甲酰胺基团导致活性显着增加 (EC 50 = 0.92 nM)。然而,42只在大鼠中显示出中等的药代动力学特性和有限的 18.7% 的口服生物利用度。噻唑环 4 位取代基和先导化合物42吡咯烷氮的进一步优化导致化合物57的鉴定,它是一种高效和选择性的 HCV NS5A 抑制剂 (EC 50 = 4.6 nM),具有更高的治疗指数 (CC 50 /EC 50 > 10000)。药代动力学研究表明,化合物57在大鼠中口服给药后具有优异的口服暴露和 45% 的所需生物利用度。