申请人:Takeda Chemical Industries, Ltd.
公开号:US05409919A1
公开(公告)日:1995-04-25
A compound of the formula: ##STR1## wherein R.sup.1 is an amino group which may be protected, R.sup.3 is a hydrogen atom or an optionally substituted hydrocarbon residue; Z is S, S.fwdarw.O, O or CH.sub.2, R.sup.4 is a hydrogen atom, methoxy group or formamido group, R.sup.13 is a hydrogen atom, methyl group, hydroxyl group or halogen atom and A.sup..sym. is an optionally substituted imidazolium-1-yl group forming a condensed ring at the 2,3- or 3,4-position or a pharmaceutically acceptable salt or ester thereof is novel and has excellent antibacterial activity.
化合物的公式为:##STR1## 其中R.sup.1是一个氨基团,可以被保护,R.sup.3是一个氢原子或一个可选择取代的碳氢基团; Z是S,S.fwdarw.O,O或CH.sub.2,R.sup.4是一个氢原子,甲氧基团或甲酰胺基团,R.sup.13是一个氢原子,甲基基团,羟基或卤原子,A.sup..sym.是一个可选择取代的咪唑-1-基团,在2,3-或3,4-位置形成一个紧缩环,或其药学上可接受的盐或酯是新颖的,并具有优异的抗菌活性。