Enantiomer separation by transesterification.

摘要

Disclosed is a process for resolving enantiomeric mixtures of 2-substituted propanoic acids and related compounds by first derivatizing the compounds to produce water soluble ester forms of the acids, and using the ester forms in an enantiomerically selective enzyme catalyzed reaction. The water soluble substrates are disposed in an aqueous solution of a water soluble donor alcohol in the presence of a hydrolase enzyme and produce by transesterification a product ester rich in one of the two enantiomers having reduced water solubility. Separation of the enantiomers thereafter may be conducted using various conventional means. The process is versatile and efficient because it can be conducted in aqueous solution to produce an easily separated product which inherently is a relatively poor substrate for hydrolase enzyme catalyzed hydrolysis.