A compound represented by the general formula
wherein R1 either represents a hydrogen atom or a lower alkyl group or is bound to R3 to form a heterocyclic group, R2 represents a hydrogen atom, an ester residue, an alkali metal or negative charge, and R3 and R4 are the same or different, and each represent a hydrogen atom or a hydrocarbonic group optionally containing hetero atom(s) selected from the group consisting of oxygen atom(s), sulfur atom(s) and nitrogen atom(s), or they are combined together with the nitrogen atom to which they bound to form a heterocyclic group,
a process for producing the same, and the use thereof as an antibacterial agent.
由通式表示的化合物
其中 R1 代表氢原子或低级烷基,或与 R3 结合形成杂环基团,R2 代表氢原子、酯残基、碱
金属或负电荷,R3 和 R4 相同或不同,且各自代表氢原子或碳氢基团,可选择含有选自氧原子、
硫原子和氮原子的杂原子,或与所结合的氮原子结合形成杂环基团、
其生产工艺及其作为抗菌剂的用途。