P3-P4 ureas and reverse carbamates as potent HCV NS3 protease inhibitors: Effective transposition of the P4 hydrogen bond donor
作者:Brian L. Venables、Ny Sin、Alan Xiangdong Wang、Li-Qiang Sun、Yong Tu、Dennis Hernandez、Amy Sheaffer、Min Lee、Cindy Dunaj、Guangzhi Zhai、Diana Barry、Jacques Friborg、Fei Yu、Jay Knipe、Jason Sandquist、Paul Falk、Dawn Parker、Andrew C. Good、Ramkumar Rajamani、Fiona McPhee、Nicholas A. Meanwell、Paul M. Scola
DOI:10.1016/j.bmcl.2018.04.009
日期:2018.6
A series of tripeptidic acylsulfonamide inhibitors of HCV NS3 protease were prepared that explored structure-activity relationships (SARs) at the P4 position, and their in vitro and in vivo properties were evaluated. Enhanced potency was observed in a series of P4 ureas; however, the PK profiles of these analogues were less than optimal. In an effort to overcome the PK shortcomings, modifications to
制备了一系列HCV NS3蛋白酶的三肽酰基磺酰胺抑制剂,探索了P4位置的结构-活性关系(SAR),并评估了它们的体外和体内特性。在一系列P4脲中观察到了增强的效力;然而,这些类似物的PK曲线不是最佳的。为了克服PK的缺点,对P3-P4结进行了修改。这包括其中两个尿素NH基团之一被N-甲基化或被氧原子取代的策略。前一种方法提供了一系列区域异构的N-甲基化尿素,而后者则产生了P4反向氨基甲酸酯,它们都保留了强大的NS3抑制特性,同时依赖于替代的H键供体拓扑。