A process for the production of a homochiral 2-hydroxy carboxylic acid or salt thereof corresponding to general formula (I), wherein R represents one of formulae (II), (III), (IV), (V), wherein R' represents straight- or branched-chain alkyl or phenyl optionally para-substituted with methyl, methoxy, nitro or amino; and R" represents hydrogen, halogen or phenyl optionally para-substituted with methyl, methoxy, nitro or amino; and M represents hydrogen or a salt-forming moiety; characterized in that it comprises reducing a corresponding 2-keto carboxylic acid or salt thereof using a (R)- or (S)-2-oxo carboxylic acid dehydrogenase, inter alia, is disclosed.
公式(I)对应的同构2-羟基
羧酸或其盐的生产过程,其中R表示公式(II),(III),(IV),(V)中的一个,其中R'表示直链或支链烷基或苯基,可选用甲基,甲氧基,硝基或
氨基取代苯环; R"表示氢,卤素或苯基,可选用甲基,甲氧基,硝基或
氨基取代苯环; M表示氢或盐形成基团; 其特征在于,使用(R)-或(S)-2-氧代
羧酸脱氢酶还原相应的2-
酮羧酸或其盐。