A compound represented by formula (I):
, wherein R¹ is an organic residue through a carbon atom, R² is a carboxyl group which may be esterified or amidated, and X is an oxygen atom, or a sulfur atom which may be oxidized,
or a salt thereof, which is useful as antibacterial agent or intermediate for synthesizing the same, and a process for preparing the same.
一种由式(I)代表的化合物:
其中 R¹ 是通过碳原子的有机残基,R² 是可被酯化或酰胺化的羧基,X 是氧原子或可被氧化的
硫原子、
或其盐,可用作抗菌剂或合成抗菌剂的中间体,以及制备抗菌剂的工艺。