申请人:MITSUI PETROCHEMICAL INDUSTRIES, LTD.
公开号:EP0261818A1
公开(公告)日:1988-03-30
N-cyano-N'-methyl-N"-(2-(5-methyl-4-imidazolylmethylthio)ethyl)guanidine (Cimetidine), which is valuable as an agent for controlling secretion of gastric acid, is prepared in a high yield by reacting N-cyano-N'-methyl-N"-(2-(butane-2,3-dionyl)thioethyl)-guanidine as the starting compound with an ammonium salt of a carboxylic acid and formaldehyde.
以 N-氰基-N'-甲基-N"-(2-(5-甲基-4-咪唑基甲硫基)乙基)胍为起始化合物,通过与羧酸铵盐和甲醛反应,可高产制备出具有控制胃酸分泌价值的 N-氰基-N'-甲基-N"-(2-(丁烷-2,3-二酰)硫乙基)胍(西咪替丁)。