Patent ID: 6365399
Filing Date: 2002-04-02
Classification: C12N,C12P

Abstract:
A process for producing a carboxylic acid isomer B represented by the general formula (2): wherein L is a C6 to C14 aryl group which may optionally be substituted, a C4 to C12 heteroaryl group which may optionally be substituted, a C6 to C14 aryloxyl group which may optionally be substituted or a C4 to C12 heteroaryloxy group which may optionally be substituted, and M is a C1 to C3 alkyl group, which comprises:allowing a carboxylic acid isomer A represented by the general formula (1): â€ƒwherein L and M have the same meanings as defined in general formula (2), to contact with a microbiological material having an ability to convert the carboxylic acid isomer A into the carboxylic acid isomer B; and separating the carboxylic acid isomer B, wherein said microbiological material comprises a microorganism selected from the group consisting of Nocardia diaphanozonaria, Saccharopolyspora hirsuta and mutants thereof which are capable of converting the carboxylic acid isomer A into the carboxylic acid isomer B.