[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF VORICONAZOLE AND INTERMEDIATES THEREOF [FR] PROCÉDÉ AMÉLIORÉ DE PRÉPARATION DU VORICONAZOLE ET DE SES INTERMÉDIAIRES
PROCESS FOR PREPARING VORICONAZOLE BY USING NEW INTERMEDIATES
申请人:Kwon Hyuk Chul
公开号:US20130005973A1
公开(公告)日:2013-01-03
Provided is a process for preparing Voriconazole represented by Chemical Formula 1. More particularly, the process for preparing Voriconazole of Chemical Formula 1 includes: carrying out the Reformatsky-type coupling reaction between a ketone derivative of Chemical Formula 4 and a pyrimidine derivative of Chemical Formula 5 to obtain a compound of Chemical Formula 3; reacting the substituents halo and oxysulfonyl with a hydrogen donor to obtain racemic Voriconazole of Chemical Formula 2; and carrying out optical isolation of the racemic Voriconazole by adding an adequate optically active acid thereto to obtain Voriconazole having high optical purity with high cost-efficiency and high yield.
The present invention provides a process for preparation of racemic voriconazole in a single reaction vessel. The present invention also provides a process for preparation of voriconazole using racemic voriconazole and the process of making it therewith.