PROCESS FOR THE PREPARATION OF TAFLUPROST AND INTERMEDIATES THEREOF
申请人:Scinopharm (Changshu) Pharmaceuticals, Ltd.
公开号:US20140046086A1
公开(公告)日:2014-02-13
The present invention provides efficient, economical and environmental friendly methods for synthesis of prostaglandin analogs including tafluprost and intermediates thereof. The invention involves a selective oxidation using in situ boronate ester protection and a unique crystallization method to remove the undesired isomers of fluorinated intermediates.