A 3-carboxyclavam derivative with a butylidene moiety at the 2-position of the clavam nucleus, having the formula III):
or a salt or ester thereof wherein X is hydrogen, hydroxy, substituted hydroxy, mercapto, substituted mercapto, azido, cyano, halo, nitro, amino, substituted amino, isothlocyanato, or X represents the residue of a carbon nucleophile or is an activated aryl or heteroaryl group,
processes of preparation and pharmaceutical composition comprising it either alone or in a synergistic composition with other beta-lactam antibacterial agents.
一种 3-羧基克拉维姆衍
生物,其克拉维姆核的 2 位上有一个亚丁基,具有式 III):
或其盐或酯,其中 X 是氢、羟基、取代羟基、巯基、取代巯基、
叠氮基、
氰基、卤基、硝基、
氨基、取代
氨基、异
硫氰基,或 X 代表碳亲核物的残基或活化芳基或杂芳基、
制备方法和药物组合物,包括单独使用或与其他 β-内酰胺类抗菌剂协同使用。