Cephem compounds
    3.
    发明授权
    Cephem compounds 失效
    头孢烯化合物

    公开(公告)号:US4861769A

    公开(公告)日:1989-08-29

    申请号:US828527

    申请日:1986-02-12

    摘要: A compound of the formula: ##STR1## wherein R.sup.1 is lower alkyl, lower alkanoyl, aryl, ar(lower)alkyl or a heterocyclic group, each of which may have suitable substituent(s),R.sup.2 is carboxy or protected carboxy,R.sup.3 is hydrogen, halogen, hydroxy, lower alkoxy, acyloxy, lower alkylthio, lower alkenyl, lower alkenylthio, lower alkynyl, heterocyclicthio or a heterocyclic group, in which lower alkylthio, lower alkenyl, lower alkenylthio, heterocyclicthio and a heterocyclic group may have suitable substituent(s),R.sup.4 and R.sup.5 are each hydrogen, halogen or arylthio,A is lower alkylene, andn is an integer of 0 or 1,and a pharmaceutically acceptable salt thereof, processes for preparation thereof and pharmaceutical composition comprising the same.

    摘要翻译: 下式的化合物,其中R 1是低级烷基,低级烷酰基,芳基,芳(低级)烷基或杂环基,其各自可以具有合适的取代基,R 2是羧基或被保护的羧基,R 3是 氢,卤素,羟基,低级烷氧基,酰氧基,低级烷硫基,低级烯基,低级链烯硫基,低级炔基,杂环硫基或杂环基,其中低级烷硫基,低级烯基,低级链烯硫基,杂环硫基和杂环基可具有合适的取代基 s)中,R 4和R 5各自为氢,卤素或芳硫基,A为低级亚烷基,n为0或1的整数,及其药学上可接受的盐,其制备方法和包含其的药物组合物。