New process for the production of ceftriaxone
    1.
    发明公开
    New process for the production of ceftriaxone 失效
    新方法生产CEFTRIAXONE

    公开(公告)号:EP0556768A3

    公开(公告)日:1993-11-24

    申请号:EP93102381.6

    申请日:1993-02-16

    IPC分类号: C07D501/36 C07D501/00

    CPC分类号: C07D501/00

    摘要: The invention relates to a new process for the production of the disodium salt hemiheptahydrate of ceftriaxone by reacting 7-amino-3-{[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazin-3-yl)thio]methyl}-3-cephem-4-carboxylic acid with 2-(2-aminothiazol-4-yl)-2-syn-methoximinoacetic acid-(2-benzthiazolyl)thiolester in the presence of a base, characterized in that the reaction and the crystallization of the disodium salt hemiheptahydrate of ceftriaxone are carried out in aqueous acetone.

    Pleuromutilins
    2.
    发明公开
    Pleuromutilins 失效
    Pleuromutiline。

    公开(公告)号:EP0421364A2

    公开(公告)日:1991-04-10

    申请号:EP90118899.5

    申请日:1990-10-03

    发明人: Macher, Ingolf

    IPC分类号: C07C323/52 C07C319/20

    摘要: Compounds of formula I

    wherein R₁ and R₂ are the same or different and each represent hydrogen, alkyl, alkenyl, cycloalkyl, aryl or aralkyl are produced by a new environmentally acceptable process.

    摘要翻译: 其中R 1和R 2相同或不同并且各自代表氢,烷基,烯基,环烷基,芳基或芳烷基的式I化合物是通过新的环境可接受的方法制备的。

    Pleuromutilins
    5.
    发明公开
    Pleuromutilins 失效
    截短侧耳素

    公开(公告)号:EP0421364A3

    公开(公告)日:1992-01-22

    申请号:EP90118899.5

    申请日:1990-10-03

    发明人: Macher, Ingolf

    IPC分类号: C07C323/52 C07C319/20

    摘要: Compounds of formula I

    wherein R₁ and R₂ are the same or different and each represent hydrogen, alkyl, alkenyl, cycloalkyl, aryl or aralkyl are produced by a new environmentally acceptable process.

    摘要翻译: 其中R 1和R 2相同或不同并且各自代表氢,烷基,烯基,环烷基,芳基或芳烷基的式I化合物是通过新的环境可接受的方法制备的。

    Intermediates in the synthesis of cephalosporins
    7.
    发明公开
    Intermediates in the synthesis of cephalosporins 失效
    Zwischenproduktefürdie Synthese von Cephalosporinen。

    公开(公告)号:EP0640608A1

    公开(公告)日:1995-03-01

    申请号:EP94111894.5

    申请日:1994-07-29

    IPC分类号: C07D501/18

    CPC分类号: C07D501/00

    摘要: Novel amidine salts of 7-Amino-3-hydroxymethyl-3-cephem-4-carboxylic acid (= HACA), particular guanidine and diaza-bicyclo-alkylene salts, are useful as intermediates in the synthesis of cephalosporins.

    摘要翻译: 7-氨基-3-羟甲基-3-头孢烯-4-羧酸(= HACA)的新型脒盐,特别是胍和二氮杂双环亚烷基盐,可用作头孢菌素合成中的中间体。

    New process for the production of ceftriaxone
    8.
    发明公开
    New process for the production of ceftriaxone 失效
    Verfahren zur Herstellung von Ceftriaxon。

    公开(公告)号:EP0556768A2

    公开(公告)日:1993-08-25

    申请号:EP93102381.6

    申请日:1993-02-16

    IPC分类号: C07D501/36 C07D501/00

    CPC分类号: C07D501/00

    摘要: The invention relates to a new process for the production of the disodium salt hemiheptahydrate of ceftriaxone by reacting 7-amino-3-{[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazin-3-yl)thio]methyl}-3-cephem-4-carboxylic acid with 2-(2-aminothiazol-4-yl)-2-syn-methoximinoacetic acid-(2-benzthiazolyl)thiolester in the presence of a base, characterized in that the reaction and the crystallization of the disodium salt hemiheptahydrate of ceftriaxone are carried out in aqueous acetone.

    摘要翻译: 本发明涉及一种通过7-氨基-3 - {[(2,5-二氢-6-羟基-2-甲基-5-氧代-1,2,4-恶二唑-5-基) 4-三嗪-3-基)t H]]甲基} -3-头孢烯-4-羧酸与2-(2-氨基噻唑-4-基)-2-顺 - 邻甲脒基乙酸 - (2-苯并噻唑基)硫醇酯在 碱的存在,其特征在于头孢曲松二钠盐半水合物的反应和结晶在丙酮水溶液中进行。