PROCESS FOR THE ENZYMATIC PREPARATION OF OPTICALLY ACTIVE TRANSGLYCIDIC ACID ESTERS

摘要

The invention relates to the preparation of an optically active ester of trans-3-phenylglycidic acid in which a mixture of the 2 enantiomers of the trans-3-phenylglycidic acid ester is stereoselectively hydrolyzed using an enzyme originating from Candida antarctica and the non-hydrolyzed ester is separated off from the reaction mixture. A racemic mixture of trans-phenylglycidic acid esters is selectively and enzymatically hydrolyzed in a relatively short reaction time, the residual ester being obtained in a high yield and with a high e.e. Such esters are used for the preparation of pharmaceuticals such as benzothiazepines and benzazepines.