发明授权
- 专利标题: Process for preparing N-cyanoguanidines
- 专利标题(中): N-氰基胍的制备方法
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申请号: US606268申请日: 1975-08-20
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公开(公告)号: US4049671A公开(公告)日: 1977-09-20
- 发明人: Graham John Durant , Charon Robin Ganellin , George Raymond White
- 申请人: Graham John Durant , Charon Robin Ganellin , George Raymond White
- 申请人地址: EN Welwyn Garden City
- 专利权人: Smith Kline & French Laboratories Limited
- 当前专利权人: Smith Kline & French Laboratories Limited
- 当前专利权人地址: EN Welwyn Garden City
- 优先权: UK38258/74 19740902
- 主分类号: C07D213/61
- IPC分类号: C07D213/61 ; C07D213/65 ; C07D233/54 ; C07D233/64 ; C07D233/68 ; C07D249/08 ; C07D261/08 ; C07D263/46 ; C07D275/02 ; C07D277/26 ; C07D285/12 ; C07D285/135 ; C07D211/82 ; C07D211/94 ; C07D211/96 ; C07D263/32 ; C07D277/38
摘要:
Process for preparing N-cyanoguanidines by treating N-(loweralkyl)-N'-cyano-isothioureas with an amine and a heavy metal salt. A specific product is N-cyano-N'-methyl-N"-[2-((5-methyl-4-imidazolyl)methylthio)ethyl]guanidine, useful as a histamine H.sub.2 -antagonist.
公开/授权文献
- US5601413A Automatic low fluid shut-off method for a pumping system 公开/授权日:1997-02-11
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