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    • 1. 发明授权
    • Cephalosporin compounds
    • 头孢菌素化合物
    • US5663331A
    • 1997-09-02
    • US256348
    • 1995-01-23
    • Kee Won KimJae Hoon KangCheon Ho Park
    • Kee Won KimJae Hoon KangCheon Ho Park
    • A61K31/545A61K31/546A61P31/04C07D501/00C07D501/36
    • C07D501/00
    • The present invention relates to new cephalosporin compounds of the formula (I), particularly 3-position of cephem rings thereof substituted with new thione compounds and pharmaceutically acceptable salts thereof, which have broad antibacterial activities against both Gram-positive and Gram-negative bacteria, and the said compounds can be prepared by reacting the compounds of the formula (II) with the new thione compounds of the formula (III). ##STR1## wherein R.sub.1 is a C.sub.1-4 alkyl(preferably methyl or ethyl), C.sub.3-4 alkenyl(preferably allyl), C.sub.3-4 alkynyl (preferably propargyl) group or --C(R.sup.a) (R.sup.b)CO.sub.2 H(preferably --C(CH.sub.3).sub.2 CO.sub.2 H or --CH.sub.2 CO.sub.2 H), wherein R.sup.1 and R.sup.b, same or different, are a hydrogen atom or a C.sub.1-4 alkyl group;R.sub.2 is a C.sub.1-4 alkyl(preferably methyl or ethyl), C.sub.3-4 alkenyl(preferably allyl), C.sub.3-4 cycloalkyl(preferably cyclopropyl) group or carboxyalkyl(preferably --CH.sub.2 CO.sub.2 H) group;R.sub.3 is a 5- or 6-membered heterocyclic compound-containing 1 or 2 nitrogen atom(s) (preferably piperazine, alkylpiperazine-substituted with C.sub.1-4 alkyl at N-- or 2-position of piperazine, imidazole-substituted or unsubstituted with C.sub.1-4 alkyl); R.sub.4 is hydrogen or a carboxylic acid.
    • PCT No.PCT / KR93 / 00005 Sec。 371日期1995年1月24日 102(e)1995年1月24日PCT PCT 1993年1月16日PCT公布。 公开号WO93 / 15084 日期:1993年8月5日本发明涉及式(I)的新型头孢菌素化合物,特别是用新的硫酮化合物及其药学上可接受的盐取代的头孢烯环的3-位,其具有对革兰氏阳性和 革兰氏阴性细菌,所述化合物可以通过使式(II)化合物与式(III)的新型硫酮化合物反应来制备。 (II)甲基或乙基),C3-4烯基(优选烯丙基),C3-4炔基(优选炔丙基)或-C(Ra)(Rb)CO2H( 优选-C(CH 3)2 CO 2 H或-CH 2 CO 2 H),其中R 1和R b相同或不同,为氢原子或C 1-4烷基; R2是C1-4烷基(优选甲基或乙基),C3-4烯基(优选烯丙基),C3-4环烷基(优选环丙基)或羧基烷基(优选-CH2CO2H)基团; R3是含有1或2个氮原子的5或6元杂环化合物(优选哌嗪,哌嗪,被哌嗪的N-或2-位上的C 1-4烷基取代的烷基哌嗪,咪唑取代或未取代的C1 -4烷基); R4是氢或羧酸。