The present invention discloses an economic, simple, azide and azindine 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、无偶
氮和偶
氮啶复杂性的合成
奥司他韦磷酸酯(达
菲)的过程,通过从易获得的
L-半胱氨酸经过拉姆伯格-巴克兰反应和夏普利斯-雷希方案的立体特异性
酰胺烷基化
咪唑噻唑酮。