A class of new cephem compounds is now provided, which is useful as antibacterial agent and is represented by the general formula (I)
wherein R' is methyl group or carboxymethyl group and R2 is carboxyl group or a protected carboxyl group, and a pharmaceutically acceptable salt or ester thereof.
现提供一类可用作抗菌剂的新型
头孢菌素化合物,由通式(I)表示,其中 R' 为甲基或羧甲基,R2 为羧基或受保护的羧基,以及其药用盐或酯。