Cyanoguanidine derivative and process for preparation thereof
    1.
    发明公开
    Cyanoguanidine derivative and process for preparation thereof 失效
    Cyanoguanidinderivate和Verfahren zu deren Herstellung。

    公开(公告)号:EP0259140A1

    公开(公告)日:1988-03-09

    申请号:EP87307705.1

    申请日:1987-09-01

    IPC分类号: C07C323/39

    CPC分类号: C07C323/44

    摘要: A novel cyanoguanidine derivative represented by the following general formula (I):
    wherein X stands for a hydrogen atom, a chlorine atom or a bromine atom, and R stands for a lower alkyl group,
    is an effective precursor for the synthesis of N-cyano-­Nʹ-methyl-Nʺ-(2-(5-methyl-4-imidazolylmethylthio)ethyl)-­guanidine (Cimetidine) which has an action of controlling secretion of gastric acid and is valuable as an agent for the remedy of a gastric ulcer.
    This cyanoguanidine derivative is prepared by reacting a methylvinylketone derivative with a mercaptoguanidine derivative or by reacting an amidinoketone derivative with a halogenating agent.

    摘要翻译: 由以下通式(I)表示的新颖的氰基胍衍生物:其中X代表氢原子,氯原子或溴原子,R代表低级烷基,是合成前体的有效前体 具有控制胃酸分泌的作用的N-氰基-N'-甲基-N“ - (2-(5-甲基-4-咪唑基甲硫基)乙基) - 胍(西咪替丁)是有价值的, 胃溃疡的补救措施。 该氰基胍衍生物通过使甲基乙烯基酮衍生物与巯基胍衍生物反应或使脒基酮衍生物与卤化剂反应来制备。