申请人:NISSAN CHEMICAL INDUSTRIES, LIMITED
公开号:EP0358428A2
公开(公告)日:1990-03-14
A process for producing an L-amino acid of formula (I):
wherein R is -CH₂CO₂H, -CH₂CONH₂, -CO₂H or
in which R¹ is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or a halogen-substituted alkyl group having 1 to 10 carbon atoms,
which process comprises carrying out an optical resolution of an N-substituted carbonyl-D,L-amino acid of formula (II):
wherein R is as defined above and R² is an alkanoyl group having 1 to 5 carbon atoms, a benzoyl group, a halogen-substituted alkanoyl group having 1 to 5 carbon atoms or a halogen-substituted benzoyl group, or a salt thereof, or a mixture thereof,
with cells of a microorganism, a microorganism fermentation broth, a treated microorganism fermentation broth, or a mixture thereof, said microorganism being selected from the bacteria of the genera Serratia, Staphylococcus, Bacillus, Flavobacterium Achromobacter and Alcaligenes and actinomycetes of the genera Actinoplanes, Streptosporangium and Sebekia.
一种生产式(I)的 L-氨基酸的工艺:
其中 R 是-CH₂CO₂H、-CH₂CONH₂、-CO₂H 或
其中 R¹ 是氢原子、1 至 10 个碳原子的烷基或 1 至 10 个碳原子的卤代烷基、
该工艺包括对式(II)的 N-取代羰基-D,L-氨基酸进行光学解析:
其中 R 如上定义,R² 是具有 1 至 5 个碳原子的烷酰基、苯甲酰基、具有 1 至 5 个碳原子的卤代烷酰基或卤代苯甲酰基,或其盐,或其混合物、
与微生物细胞、微生物发酵液、经处理的微生物发酵液或它们的混合物一起,所述微生物选自沙雷氏菌属、葡萄球菌属、芽孢杆菌属、黄杆菌属、Achromobacter 属和 Alcaligenes 属的细菌以及放线菌属、链孢属和 Sebekia 属的放线菌。