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    • 3. 发明授权
    • 7-(.alpha.-Sulfoacylamido)cephalosporins
    • 7 - ({60-磺酰基氨基)头孢菌素
    • US4065619A
    • 1977-12-27
    • US719704
    • 1976-09-02
    • Shiro MorimotoHiroaki NomuraTakeshi FugonoIsao Minami
    • Shiro MorimotoHiroaki NomuraTakeshi FugonoIsao Minami
    • A61K31/545C07D501/38C07D501/44C07D501/46
    • C07D501/38
    • Novel cephalosporins of the formula, ##STR1## wherein R is a hydrogen atom or an alkyl, aryl or thienyl group, and R' is a group which constitutes together with the adjacent nitrogen atom a 5- or 6-membered ring containing 1 or 2 nitrogen atoms, which are effective particularly against Pseudomonas aeruginosa as well as against other Gram negative and positive microorganisms, for example, N-[7-(.alpha.-sulfophenylacetamido)ceph-3-em-3-ylmethyl] pyridinium 4-carboxylate, N-[7-(.alpha.-sulfo-3'-thienylacetamido)ceph-3-em-3-ylmethyl] pyridinium-4-carboxylate, and their pharmaceutically acceptable salts thereof. Sodium salt of the former is prepared by, e.g. reacting sodium 7-(.alpha.-sulfophenylacetamido) cephalosporanate with pyridine in water.
    • 新颖的下式头孢菌素其中R是氢原子或烷基,芳基或噻吩基,R'是与相邻氮原子一起构成含有1或2的5-或6-元环的基团 氮原子,其特别对绿脓假单胞菌以及其他革兰氏阴性和阳性微生物有效,例如N- [7-(α-磺基苯基乙酰氨基)头孢-3-烯-3-基甲基]吡啶鎓4-羧酸盐,N - [7-(α-磺基-3'-噻吩基乙酰胺基)头孢-3-烯-3-基甲基]吡啶鎓-4-羧酸盐及其药学上可接受的盐。 前者的钠盐通过例如 使7-(α-磺基苯基乙酰氨基)头孢菌素钠与吡啶在水中反应。