Process for preparing thioureas by treating isothiocyanates with ammonia and alkylamines. A specific product is N-methyl-N'-[2-((5-methyl-4-imidazolyl)methylthio)ethyl]thiourea, useful as a histamine H.sub.2 -antagonist.
用
氨和烷基胺处理异
硫氰酸盐以制备
硫脲的过程。其中一种特定的产品是N-甲基-N'-[2-((5-甲基-4-
咪唑基)甲
硫基)乙基]
硫脲,可用作
组胺H.sub.2-拮抗剂。