abstract |
Process for the preparation of substantially enantiomerically pure alpha-phenylalanine esters of formulas (I) and (II): (CF DRAWING IN BOPI) in which Alk represents a linear or branched alkyl radical containing from 1 to 6 carbon atoms, characterized in that a mixture of enantiomers of alpha-phenylalanine esters is brought into contact with a lipase, a protease, or an esterase. |