An antibacterial 7beta-(carboxyalkenoyl)amino-3-cephem-4-carboxylic acid represented by the following formula:
(wherein R is aryl or a heterocyclic group;
R' is hydrogen or halogen;
R2 is a single bond, alkylene, oxaalkylene, or thiaalkylene;
R3 is a hydrogen atom or carboxy modifying group;
R4 is hydrogen or methoxy;
R5 is hydrogen or a 3-substituent of cephalosporins;
R8 is a hydrogen atom or carboxy modifying group; and
X is oxygen, sulfur, or sulfinyl)
a pharmaceutical composition containing the same, and a method for treating a bacterial infection with the same.
由下式代表的抗菌 7beta-(羧基烯酰基)
氨基-3-头孢-4-
羧酸:
(其中 R 为芳基或杂环基;
R'是氢或卤素
R2 是单键、烯烃、氧杂烯烃或
硫杂烯烃;
R3 是氢原子或羧基修饰基团;
R4 是氢原子或甲氧基
R5 是氢原子或
头孢菌素的 3-取代基;
R8 是氢原子或羧基修饰基团;以及
X是氧、
硫或亚砜基)
一种含有上述成分的药物组合物,以及用上述成分治疗细菌感染的方法。