Synthesis of optically active α-methylamino acids and amides through biocatalytic kinetic resolution of amides
作者:Mei-Xiang Wang、Jun Liu、De-Xian Wang、Qi-Yu Zheng
DOI:10.1016/j.tetasy.2005.06.023
日期:2005.7
AJ270, a nitrile hydratase and amidase containing microbial whole-cell catalyst, under very mild conditions, a number of racemic α-methylamino amides were resolved into the corresponding optically active (S)-(+)-α-methylamino acids and (R)-(−)-α-methylamino amides. The steric requirement of the amidase against α-amino phenylacetamides bearing methyl group(s) at α-amino nitrogen and/or α-carbon was also
由Rhodococcus sp。催化。AJ270,一种含有腈水合酶和酰胺酶的微生物全细胞催化剂,在非常温和的条件下,将许多外消旋的α-甲基氨基酰胺分解为相应的旋光性(S)-(+)-α-甲基氨基酸和(R) -(-)-α-甲基氨基酰胺。还研究了酰胺酶对α-氨基氮和/或α-碳上带有甲基的α-氨基苯基乙酰胺的空间需求。结合酰胺的化学水解,生物转化过程可以从容易获得的外消旋酰胺直接合成两种对映体形式的α-甲基氨基酸。