The present invention relates to,a method for preparing Clopidogrel and its derivatives. Mare particularly, the present invention is a method for preparation of (S)-2-Clopidogrel and its derivatives/ which are active inhibitors of platelet aggregation, from an optically active (S)-2-chlorophenyl glycine alkyl ester ...

The present invention provides a new process for the preparation of optically active ethyl 3-hydroxy-3-phenylpropionate and their esters by enzymatic method. More particularly, the racemic ethyl 3-hydroxy-3-phenylpropionate is converted to optically active ethyl 3-hydroxy-3-phenylpropionate and their esters by enzym...

The present invention relates to process for the preparing of optically active ester derivatives and their acid derivatives which are used intensively as important chiral intermediates from racemic p- hydroxybutyl ester derivatives. In more detail, this invention relates to th...

The present invention relates to the process for preparing optically active 3-acyloxy-gamma- butyrolactone represented by the general formula 5 and optically active 3-hydroxy-gamma- butyrolactone represented by the general formula 6 in scheme 1 from racemic 3-acyloxy- gamma-butyrolactone represented by the genera...

The present invention relates to a method for preparing racemic or optically active a?glycerophosphoryl choline and more specifically to a method for mass producing racemic or optically active D or L a?glycerophosphoryl choline through a substitution reaction of choline phosphate or a salt thereof and racemic or ...