HEPATITIS C VIRUS INHIBITORS AND USES THEREOF IN PREPARATION OF DRUGS
申请人:CHANGZHOU YINSHENG PHARMACEUTICAL CO., LTD.
公开号:US20170253614A1
公开(公告)日:2017-09-07
A series of hepatitis C virus (HCV) inhibitors and compositions and applications thereof in the preparation of drugs for treating chronic HCV infection. Especially, a series of compounds that are used as NS5A inhibitors, and compositions and uses thereof in the preparations of drugs.
synthesis of imido-substituted chlorotriazines and demonstrate their use in dehydrative condensation reactions. Chemoselective amide-forming reactions of amino alcohols using succinimido-substituted chlorotriazine (2A) proceeded smoothly. Occasionally, nonselectivity was problematic during the synthesis of hydroxy-substituted amides. Moreover, it was noteworthy that this method was applicable to hydroxy-substituted
site‐selective α‐functionalization of sulfonylamide derivatives through the in‐situ generation of imine intermediates. The N−F sulfonylamides, which could facilitate the elimination to generate imines, are coupled with TBACN to efficiently and mildly afford α‐amino cyanides. Comparing with Strecker reaction, this transformation offers a complementary strategy to efficiently construct α‐amino cyanides
the operationally simple dehydrative condensation of carboxylic acids. This reagent comprises an ATD core and DMAP as the leaving group, which is liberated into the reaction system to accelerate acyltransfer reactions. Upon adding ATD-DMAP to a mixture of carboxylic acids and alcohols in the presence of an amine base, the corresponding esters were formed rapidly at room temperature. Moreover, dehydrative
开发了一种新的基于三嗪二酮的试剂 ( N , N'-二烷基)三嗪二酮-4-(二甲氨基)吡啶 (ATD-DMAP),用于操作简单的羧酸脱水缩合。该试剂包含一个ATD核和作为离去基团的DMAP,它被释放到反应体系中以加速酰基转移反应。在胺碱存在下将 ATD-DMAP 添加到羧酸和醇的混合物中,在室温下迅速形成相应的酯。此外,使用 ATD-DMAP 使羧酸和胺之间的脱水缩合以高产率进行。