Efficient synthesis of highly enantiopure β-lactam derivatives from biocatalytic transformations of amides and nitriles
作者:Yu-Fei Ao、Dong-Hui Leng、De-Xian Wang、Liang Zhao、Mei-Xiang Wang
DOI:10.1016/j.tet.2014.05.018
日期:2014.7
Catalyzed by Rhodococcus erythropolis AJ270, a nitrile hydratase and amidase containing microbial strain, under mild conditions, kinetic resolution of racemic amides provides an efficient and scalable route to highly enantioenriched R-4-carboxymethyl-β-lactams and S-4-carbamoylmethyl-β-lactams despite the substrates contain a stereogenic center that is β-positioned to amide functionality. Synthetic
在温和条件下,由红球菌红球菌AJ270,一种含有腈水合酶和酰胺酶的微生物菌株催化,消旋酰胺的动力学拆分可提供高效且可扩展的途径,以实现高度对映体富集的R -4-羧甲基-β-内酰胺和S -4-氨甲酰基甲基-β尽管底物含有β-内酰胺基,但β-内酰胺含有一个立体定位的中心。通过方便实用的化学转化,构建新型β-内酰胺基稠合杂环化合物,证明了该方法的合成潜力。