2-Vinylpenams and process
    2.
    发明公开
    2-Vinylpenams and process 失效
    2-Vinylpenams和过程

    公开(公告)号:EP0244195A1

    公开(公告)日:1987-11-04

    申请号:EP87303725.3

    申请日:1987-04-28

    CPC分类号: C07D499/00 C12P37/00 C12R1/75

    摘要: 6β-(L-α-Aminoadipoyl)-2α-vinyl-2β-methylpenam-­3-carboxylic acid is provided in an enzymatic process converting δ-(L-α-aminoadipoyl)-L-cysteinyl-D-γ,δ-­didehydroisoleucine with isopenicillin N synthetase. The 2α-vinylpenam product is converted by known methods to the 6β-amino-2α-vinyl-2β-methylpenam-3-carboxylic acid nucleus and the latter is N-acylated to provide corresponding 6β-acylaminopenams.

    摘要翻译: 在酶促过程中提供6β-(L-α-氨基己二酰)-2α-乙烯基-2β-甲基戊烷-3-羧酸,将δ-(L-α-氨基己二酰)-L-半胱氨酰-D-γ,δ-双脱氢异亮氨酸 与异青霉素N合成酶。 通过已知方法将2α-乙烯基铁蛋白产物转化为6β-氨基-2α-乙烯基-2β-甲基戊-3-羧酸核,后者N-酰化以提供相应的6β-酰氨基苯丙氨酸。

    Process for preparing penicillin and cephalosporin sulfones
    5.
    发明公开
    Process for preparing penicillin and cephalosporin sulfones 失效
    Verfahren zur Herstellung von青霉素和头孢菌素磺隆。

    公开(公告)号:EP0136788A1

    公开(公告)日:1985-04-10

    申请号:EP84305359.6

    申请日:1984-08-07

    CPC分类号: C07D499/00 Y02P20/55

    摘要: There is disclosed a process for preparing a penicillin or cephalosporin sulfone of the formula

    wherein:

    R' is hydrogen or a carboxylic acid acyl residue;
    R 2 is hydrogen or lower alkoxy;
    R 3 is hydrogen, a carboxy protecting group or a salt forming group;
    A is

    in which:
    R 4 is halo, lower alkyl, lower alkoxy, or -CH 2 R 6 , wherein R 6 is lower alkanoyloxy or a heterocyclic group; and
    R 5 is hydrogen or alkoxycarbonyloxy; comprising reacting a compound of the formula
    with an oxidizing agent and a catalytic amount of ruthenium tetroxide.

    摘要翻译: 公开了一种制备下式的青霉素或头孢菌素砜的方法:其中:R 1是氢或羧酸酰基残基; R 2是氢或低级烷氧基; 其中:R 4是卤素,低级烷基,低级烷氧基或-CH 2 R 6,其中R 3是氢,羧基保护基或成盐基; A是... 6>是低级烷酰氧基或杂环基; 和R 5是氢或烷氧基羰基氧基; 包括使式...的化合物与氧化剂和催化量的四氧化钌反应。

    Process for preparing 2-alpha-methyl-2-beta-(1,2,3-triazol-1-yl)methyl-penam-3-alpha-carboxylic acid derivatives
    9.
    发明公开
    Process for preparing 2-alpha-methyl-2-beta-(1,2,3-triazol-1-yl)methyl-penam-3-alpha-carboxylic acid derivatives 失效
    Verfahren zur Herstellung von 2-α-Methyl-2-β-(1,2,3-三唑-1-基)甲基扑灭-3-α-碳二烯酸酯。

    公开(公告)号:EP0331395A1

    公开(公告)日:1989-09-06

    申请号:EP89301926.5

    申请日:1989-02-27

    IPC分类号: C07D499/00 C07D499/44

    CPC分类号: C07D499/00 Y02P20/55

    摘要: 2α-Methyl-2β-(1,2,3-triazol-1-yl)methylpenam-3α-­carboxylic acid derivatives are prepared by reacting a penicillanic acid sulfoxide derivative of the formula
    wherein R is a penicillin carboxyl protecting group, and R₁ is hydrogen or halogen, R₂ is hydrogen, lower alkyl or the like with a triazole derivative of the formula
    wherein R₃ and R₄ are hydrogen, trialkylsilyl, lower alkyl, lower alkoxy or the like and R₅ is hydrogen or silyl substituted with 3 groups selected from the class consisting of lower alkyl, benzyl and phenyl in a solvent.

    摘要翻译: 2α-甲基-2β-(1,2,3-三唑-1-基)甲基亚磺酸-3α-羧酸衍生物通过使式的青霉烷酸亚砜衍生物,其中R是青霉素羧基 R 1为氢或卤素,R 2为氢,低级烷基等与式CHEM的三唑衍生物反应,其中R 3和R 4为氢,三烷基甲硅烷基,低级烷基,低级烷氧基等,R 5为氢 或在溶剂中由选自低级烷基,苄基和苯基的3种基团取代的甲硅烷基。