Intermediates for the preparation of ceftazidine, and process for their preparation
    41.
    发明公开
    Intermediates for the preparation of ceftazidine, and process for their preparation 失效
    中间体,用于制备头孢他啶和方法,它们的制备方法。

    公开(公告)号:EP0113568A2

    公开(公告)日:1984-07-18

    申请号:EP83307675.5

    申请日:1983-12-16

    IPC分类号: C07D501/46

    CPC分类号: C07D501/46

    摘要: (6R, 7R)-7-[(Z)-2-(2-triphenylmethylaminothiazol-4-yl)-2-(2-tert . -butoxycarbonylprop-2-oxyiminolacetamido]-3-(1-pyridiniummethyl)ceph-3-em-4-carboxylate is isolated and purified by formation of a N,N-dimethylacetamide solvate.

    摘要翻译: (6R,7R)-7 - 〔(Z)-2-(2-三苯基-4-基)-2-(2-叔butoxycar bonylprop -2-氧代亚氨基)交流etamido] -3-(1-吡啶鎓甲基 )头孢-3-头孢-3-烯-4-羧酸盐分离并通过形成N,N-二甲基乙酰胺溶剂化物的纯化。

    Preparation of N-chloroimides and a novel N-chloroimide
    42.
    发明公开
    Preparation of N-chloroimides and a novel N-chloroimide 失效
    Verfahren zur Herstellung von N-Chloroimiden und ein neues N-Chloroimid。

    公开(公告)号:EP0003258A1

    公开(公告)日:1979-08-08

    申请号:EP78300802.2

    申请日:1978-12-13

    摘要: A process for preparing N-chloroimides comprising contacting the corresponding imide with molecular chlorine under substantially anhydrous conditions in the presence of an epoxy compound and a tertiary amine.
    The novel N-chloroimide N,N'-dichloro-bicyclo(2.2.2)oct-7-ene-2,3,5,6-tetracarboxylic-2,3,5,6-diimide is prepared.

    摘要翻译: 一种制备N-氯代酰亚胺的方法,包括在基本上无水条件下在环氧化合物和叔胺存在下使相应的酰亚胺与分子氯接触。 制备新型N-氯代酰亚胺N,N,N'-二氯 - 双环[2.2.2]辛-7-烯-2,3,5,6-四羧酸-2,3,5,6-二亚胺。