The compounds are N-oxy and N-amino guanidines which are histamine H.sub.2 -antagonists. A compound of this invention is N-hydroxy-N'methyl-N"-[2-((4-methyl-5-imidazolyl)methylthio)-ethyl]guanidi ne.
这些化合物是
组胺H.sub.2-拮抗剂的N-氧和N-
氨基
胍类化合物。本发明的一种化合物是N-羟基-N'甲基-N''-[2-((4-甲基-5-
咪唑基)甲
硫基)-乙基]
胍。