Enantioselective acylation of a beta-lactam intermediate in the synthesis of loracarbef using penicillin G amidase
作者:Milton J. Zmijewski、Barbara S. Briggs、Allen R. Thompson、Ian G. Wright
DOI:10.1016/s0040-4039(00)74287-0
日期:1991.3
Penicillin G amidase from . has been shown to selectively acylate, in an efficient manner, the (2R,3S) isomer of a cis, racemic azetidinone intermediate used in a synthesis of loracarbef, a carbacephalosporin antibiotic. The acylation occurs using methyl phenylacetate (MPA) and using methyl phenoxyacetate (MPOA) as the acylating agents. The enzyme displays similar enantioselectivity with MPOA or MPA
Enantiomerically selective enzymic acylation of a racemic 3-amino azetidinone
申请人:ELI LILLY AND COMPANY
公开号:EP0460949A2
公开(公告)日:1991-12-11
An enantiomerically selective process for acylating racemic 3-amino azetidinone intermediates is provided using penicillin G amidase(acylase) as biocatalyst.
以青霉素 G 酰胺酶(酰化酶)为生物催化剂,提供了一种酰化外消旋 3-氨基氮杂环丁酮中间体的对映体选择性工艺。