PROCESS FOR THE PREPARATION OF OSELTAMIVIR AND METHYL 3-EPI-SHIKIMATE
申请人:Council of Scientific & Industrial Research
公开号:US20140243537A1
公开(公告)日:2014-08-28
The present invention discloses high yielding enantioselective process for synthesis of Oseltamivir from readily available starting material, cis-1,4-butene diol. The process features incorporation of chirality using sharpless asymmetric epoxidation (AE) and diastereoselective Barbier allylation and construction of cyclohexene carboxylic acid ester core through a ring closing metathesis (RCM) reaction. Further also disclosed herein is synthesis of (−)-methyl 3-epi-shikimate.