作者:Xi-An Li、Lirong Yue、Jianrong Zhu、Huazhong Ren、Hong Zhang、Dong-yan Hu、Guangtian Han、Jiafu Feng、Ze-dong Nan
DOI:10.1016/j.tetlet.2019.06.048
日期:2019.7
approach has been accomplished for the total synthesis of active pharmaceutical ingredient (API) of Tasimelteon which is effective for treatment of non-24-h sleep-wake disorder. Starting from 4-vinyl-2, 3-dihydrobenzofuran, the synthesis involves asymmetric epoxidation, Wittig reaction, reduction of the nitrile group and propionation of the amine. The synthesis was accomplished in four steps in overall
已经完成了一种简单有效的方法来完成Tasimelteon的活性药物成分(API)的总合成,该方法可有效治疗非24小时睡眠-觉醒障碍。从4-乙烯基-2,3-二氢苯并呋喃开始,合成涉及不对称环氧化,Wittig反应,腈基还原和胺的丙酸酯化。合成以四个步骤完成,总产率为48%。