Compounds of formula (I):
wherein R¹ is hydrogen or an amino protecting group and R is a group CHRa OCORb, wherein Ra is hydrogen, C₁₋₆ alkyl, C₃₋₇ cycloalkyl or phenyl, and Rb is C₁₋₆ alkyl, C₁₋₆ alkoxy, phenyl optionally substituted with -NHCOCHRcNH₂, benzyl, C₃₋₇ cycloalkyl, or C₁₋₆ alkyl C₃₋₇ cycloalkyl; or Ra and Rb together form a 1,2-phenylene group optionally substituted by one or two methoxy groups,wherein Rc represents hydrogen or lower alkyl, are disclosed, having antibacterial properties.
式(I)化合物:
其中 R¹ 是氢或
氨基保护基团,R 是 CHRa OCORb 基团,其中 Ra 是氢、C₁₋₆ 烷基、C₃₋₇ 环烷基或苯基、而 Rb 是 C₁₋₆ 烷基、C₁₋₆ 烷氧基、任选被 -NHCOCHRcNH₂ 取代的苯基、苄基、C₃₋₇ 环烷基或 C₁₋₆ 烷基 C₃₋₇ 环烷基;或 Ra 和 Rb 共同形成可选被一个或两个甲氧基取代的 1,2-亚苯基,其中 Rc 代表氢或低级烷基,这些化合物具有抗菌特性。