Asymmetric Synthesis of 3,4-Disubstituted Proline Derivatives: Application in Synthesis of Hepatitis C Virus Protease Inhibitor Telaprevir
作者:Fan Zhang、Xiaoan Wen、Qing-Long Xu、Hongbin Sun
DOI:10.1002/ejoc.201403069
日期:2014.12
practical asymmetric synthesis of 3,4-disubstituted proline derivatives has been realized with high stereoselectivity and moderate yield. The key steps involved are desymmetric ring-opening reaction of commercially available anhydrides, intramolecular Strecker reaction and thermodynamically controlled cyanide hydrolysis. Based on this methodology, the synthesis of HCV protease inhibitor Telaprevir was achieved
3,4-二取代脯氨酸衍生物的实用不对称合成已实现,立体选择性高,产率适中。涉及的关键步骤是市售酸酐的不对称开环反应、分子内 Strecker 反应和热力学控制的氰化物水解。基于该方法,实现了HCV蛋白酶抑制剂Telaprevir的合成。