Cephalosporin compounds represented by the general formula ##STR1## in which R.sup.1 is a hydrogen atom or a protective group for the amino group, R.sup.2 is a hydrogen atom or a protective group for the hydroxyl group, R.sup.3 is a hydrogen atom, a salt-forming cation or a protective group for the carboxyl group, and R.sup.4 is a hydrogen atom, a halogen atom or a lower alkyl group, and their pharmacologically acceptable salts, process for their production and use of the same compounds as medicaments, particularly as antibiotic agents.
头孢菌素化合物,其通式如##STR1##所示,其中R1为氢原子或
氨基保护基,R2为氢原子或羟基保护基,R3为氢原子、成盐阳离子或羧基保护基,R4为氢原子、卤素原子或低级烷基,及其药理上可接受的盐,这些化合物的制备方法及其作为药物,特别是作为抗生素的使用。