Novel cephalosporin compounds represented by formula (I):
wherein R¹ represents a lower alkyl group which may optionally have a substituent; each of R² and R³ independently represents a hydrogen atom or hydroxy group; and A represents a hydrogen atom or a residue of nucleophilic compound, and pharmacologically acceptable salts or esters thereof exhibit a potent antibacterial activity against gram positive and gram negative bacteria.
由式(I)代表的新型
头孢菌素化合物:
其中 R¹ 代表低级烷基,该烷基可任选具有一个取代基;R² 和 R³ 各自独立地代表氢原子或羟基;A 代表氢原子或亲核化合物的残基,其药理上可接受的盐或酯对革兰氏阳性菌和革兰氏阴性菌具有强效抗菌活性。