A novel cephem compound which has antimicrobial activity is disclosed. The cephem compound is represented by the formula:
wherein R1 represents a hydrogen atom or a carboxyl group; R2 and R3, which may be the same or different, each represent a hydrogen atom or a lower alkyl group of 1-3 carbon atoms; and R4 and R5, which may be the same or different, each represent a hydrogen atom or an acyl group; and pharmaceutically acceptable salts thereof.
本发明公开了一种具有抗菌活性的新型
头孢菌素化合物。这种 cephem 化合物由式表示:
其中 R1 代表氢原子或羧基;R2 和 R3(可以相同或不同)各自代表氢原子或 1-3 个碳原子的低级烷基;以及 R4 和 R5(可以相同或不同)各自代表氢原子或酰基;及其药学上可接受的盐类。