The present invention discloses an economic, simple, azide and aziridine complexity free process for the synthesis of osletamivir phosphate (Tamiflu) by stereospecific amidoalkylation of imidazothiazolone from easily available L-cysteine via Ramberg-Backlund reaction and Sharpless-Reich protocol.
本发明揭示了一种经济、简单、无复杂度的偶氮酸盐和
环氧乙烷合成
奥司他韦磷酸盐(达
菲)的过程,通过易得的
L-半胱氨酸通过Ramberg-Backlund反应和Sharpless-Reich协议的立体特异性酰胺基烷基化反应。