PROCESS FOR THE PREPARATION OF CARVEDILOL AND ITS ENANTIOMERS
申请人:Trepat Guixer Elisenda
公开号:US20090005429A1
公开(公告)日:2009-01-01
The present invention relates to a process for the preparation of carvedilol as well as of the optically active R and S enantiomers thereof and of mixtures of these enantiomers and, more particularly, relates to an improved process for the preparation of carvedilol and its enantiomers characterized by the use of ethyl acetate as reaction solvent.