N-Aryl 3-halogenated azetidin-2-ones and benzocarbacephems, inhibitors of .beta.-lactamases
作者:Roger Joyeau、Huguette Molines、Roger Labia、Michel Wakselman
DOI:10.1021/jm00397a018
日期:1988.2
N-(3-Carboxy-6-methylphenyl)-3-fluoroazetidin-2-one and a series of related N-aryl-3-halo- and -3,3-dihaloazetidinones 3, in which the halo substituent is a fluorine or a bromine atom, were prepared by using the Wasserman procedure of cyclization of beta-bromopropionamides as a key step. Their affinities for the TEM-1 beta-lactamase were determined and compared with those of a series of tricyclic azetidinones
N-(3-羧基-6-甲基苯基)-3-氟氮杂环丁烷-2-酮和一系列相关的N-芳基-3-卤代和-3,3-二卤代氮杂环丁酮3,其中卤素取代基是氟或β-溴丙酰胺环化的Wasserman程序制备了一个溴原子作为关键步骤。确定了它们对TEM-1β-内酰胺酶的亲和力,并将其与一系列三环氮杂环丁酮,苯并甲酰胺2和已知的β-内酰胺酶抑制剂的亲和力进行了比较。β-内酰胺2和3充当竞争性抑制剂,而不是酶的底物;卤素取代(系列3)和环菌株(系列2)都不会诱导酶水解。