申请人:Banyu Pharmaceutical Co., Ltd.
公开号:US05225406A1
公开(公告)日:1993-07-06
The present invention relates to a compound having the formula: ##STR1## wherein R is a hydrogen atom, a carboxyl-protecting group or a negative charge and Q is a hydrogen atom, a halogen atom, a hydroxyl group, an acetoxy group, a carbamoyloxy group, an azide group, a substituted or unsubstituted quarternary ammonio group or a substituted or unsubstituted heterocyclic thio group having at least one hetero atom selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, or a non-toxic salt or physiologically hydrolyzable non-toxic ester thereof; a process for producing it; and an antibacterial agent comprising it as an active ingredient. Further, the present invention also relates to a compound having the formula: ##STR2## wherein R.sup.3 is a hydrogen atom or an amino-protecting group, and each of R.sup.4 and R.sup.5 which may be the same or different is a hydrogen atom or a carboxyl-protecting group, or a salt thereof; and a process for producing it.
本发明涉及一种具有以下式子的化合物:##STR1## 其中R是氢原子,羧基保护基或负电荷,Q是氢原子,卤素原子,羟基,乙酰氧基,氨基甲酰氧基,偶氮基,取代或未取代的季铵基或至少具有从氮原子,氧原子和硫原子组成的杂环硫基的取代或未取代的杂环基,或其无毒盐或生理水解性无毒酯;一种生产它的方法;以及包含它作为活性成分的抗菌剂。此外,本发明还涉及具有以下式子的化合物:##STR2## 其中R.sup.3是氢原子或氨基保护基,R.sup.4和R.sup.5可以相同或不同,是氢原子或羧基保护基,或其盐;以及生产它的方法。