Pharmacologically active thiourea and urea compounds
申请人:Smith Kline & French Laboratories Limited
公开号:US03950353A1
公开(公告)日:1976-04-13
The compounds are substituted thioalkyl-, aminoalkyl- and oxyalkyl-thioureas and ureas which are inhibitors of histamine activity.
这些化合物是取代的硫代烷基、氨基烷基和氧烷基硫脲和脲,它们是组胺活性的抑制剂。
Pharmaceutical compositions and methods of inhibiting H-1 and H-2
申请人:Smith Kline & French Laboratories Limited
公开号:US04000302A1
公开(公告)日:1976-12-28
Pharmaceutical compositions and methods of inhibiting H-1 and H-2 histamine receptors by administering an antihistamine and an H-2 histamine receptor inhibitor. Exemplary of the antihistamine in the compositions and methods of this invention is mepyramine and exemplary of the H-2 histamine receptor inhibitor is N-cyano-N'-methyl-N"-[2-((4-methyl-5-imidazolyl)-methylthio)ethyl]guanidin e.
Pharmaceutical compositions and method of inhibiting H-1 and H-2
申请人:Smith Kline & French Laboratories Limited
公开号:US03954982A1
公开(公告)日:1976-05-04
Pharmaceutical compositions and methods of inhibiting H-1 and H-2 histamine receptors by administering an antihistamine and an H-2 histamine receptor inhibitor. Exemplary of the antihistamine in the compositions and methods of this invention is mepyramine and exemplary of the H-2 histamine receptor inhibitor is N-methyl-N'-[4-(5)-imidazolyl)butyl]thiourea.
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.