申请人:Smith Kline & French Laboratories Limited
公开号:US04191769A1
公开(公告)日:1980-03-04
The compounds are N-(heterocyclomethylthioalkyl) derivatives of alkylguanidines, C-alkyl and C-aryl amidines and S-alkylisothioureas. The compounds may also have N'-lower alkyl or N'(heterocyclomethylthioalkyl) substituents. Three compounds of the invention are S-methyl-N-[2-(5-methyl-4-imidazolylmethylthio)ethyl]isothiourea, N,N'-bis-[2-(5-methyl-4-imidazolylmethylthio)ethyl]acetamidine, N,N'-bis-[2-(5-methyl-4-imidazolylmethylthio)ethyl]N"-methylguanidine. The compounds of this invention are histamine H.sub.2 -antagonists.
这些化合物是烷基胍基衍生物的N-(杂环甲基硫代烷基)衍生物,C-烷基和C-芳基酰胺基和S-烷基异硫脲。这些化合物还可能具有N'-低烷基或N'(杂环甲基硫代烷基)取代基。该发明的三种化合物是S-甲基-N-[2-(5-甲基-4-咪唑甲基硫基)乙基]异硫脲、N,N'-双-[2-(5-甲基-4-咪唑甲基硫基)乙基]乙酰胺基和N,N'-双-[2-(5-甲基-4-咪唑甲基硫基)乙基]N''-甲基胍。该发明的这些化合物是组胺H.sub.2 -拮抗剂。