A Concise Synthesis of the HCV Protease Inhibitor BILN 2061 and Its P3 Modified Analogs
作者:Dejun Liu、Jingchao Dong、Yunxing Yin、Rujian Ma、Yifeng Shi、Hao Wu、Shuhui Chen、Ge Li
DOI:10.1002/cjoc.201180270
日期:2011.7
A concise synthesis of BILN 2061 was achieved through more efficient installation of P2 4‐quinoline moiety via SN2 displacement of the β‐OBs group located on the 4‐hydroxyl proline intermediate, which was prepared from 4‐α‐hydroxyl proline analog via Mitsunobu reaction with inversion of stereochemistry. In addition, a short and practical synthesis for P3 unit is also described herein. Final assembly
BILN 2061的简明合成是通过更高效地安装P2 4-喹啉部分的方法,该方法是通过用4- α-羟基脯氨酸类似物通过以下方法制备的位于4-羟基脯氨酸中间体上的β- OBs基团的S N 2置换来实现的Mitsunobu反应与立体化学倒置。另外,本文还描述了P3单元的简短而实用的合成。从P1到15a的4步最终完成了BILN 2061的四个片段的最终组装,总产率为58%。的几个另外的类似物BILN 2061(WX-1 -使用对母体抑制剂BILN 2061所述的相同合成路线,成功合成了对P3单元进行了修饰的WX - 5)。