The compounds are C.sub.2 -C.sub.8 straight chain alkanes terminally substituted, symmetrically or unsymmetrically, by N-(N'-substituted guanidino), N-(N',N" -disubstituted guanidino), N-(N'-substituted thioureido), N-(nitromethylene amidino) or S-(N-substituted isothioureido) groups. Two compounds of the invention are 1,3-bis-[N'-(2-(5-methyl-4-imidazolylmethylthio)ethyl)guanidino]propane and 1,3-bis-[S-(N-2-(5-methyl-4-imidazolylmethylthio)ethyl)isothioureido]p ropane. The compounds of this invention are inhibitors of H-2 histamine receptors.
化合物为C2-C8直链
烷烃,末端被N-(N'-取代
胍基)、N-(N',N"-二取代
胍基)、N-(N'-取代
硫脲基)、N-(硝甲基
亚胺基)或S-(N-取代异
硫脲基)对称或不对称取代。本发明的两种化合物是1,3-双[N'-(2-(5-甲基-4-
咪唑基甲
硫基)乙基)
胍基]
丙烷和1,3-双[S-(N-2-(5-甲基-4-
咪唑基甲
硫基)乙基)异
硫脲基]
丙烷。本发明的化合物是H-2
组胺受体的
抑制剂。