Compounds of the formula ##STR1## wherein R is hydrogen or methyl; R.sub.1 is straight or branched alkyl of 1 to 6 carbon atoms, dimethyldioxolylmethyl, hydroxymethyldioxolylmethyl, hydroxy(alkyl of 1 to 6 carbon atoms), mono- or di-(alkoxy of 1 to 6 carbon atoms)(alkyl of 1 to 6 carbon atoms), (alkyl of 1 to 6 carbon atoms)thio- (alkyl of 1 to 6 carbon atoms), (alkoxy of 1 to 6 carbon atoms)(alkyl of 1 to 6 carbon atoms)thio-(alkyl of 1 to 6 carbon atoms), cyano(alkyl of 1 to 6 carbon atoms), di-lower alkyl-amino(alkyl of 1 to 6 carbon atoms), alkenyl, alkynyl, or cycloalkyl; R.sub.2 and R.sub.3 are each independently hydrogen, alkyl of 1 to 3 carbon atoms, alkoxy of 1 to 3 carbon atoms or halogen; and Z is imidazol-2-yl or imidazol-4-yl; provided however that, when R.sub.1 is straight or branched alkyl, alkenyl, alkynyl, cycloalkyl or cyano and R, R.sub.2 and R.sub.3 are hydrogen, Z is other than imidazol-4-yl; tautomers thereof and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as antiulcerogenics and gastric acid secretion inhibitors.
                            化合物的公式为##STR1##其中R为氢或甲基; R.sub.1为1到6个碳原子的直链或支链烷基,二甲基二氧杂
环戊烯甲基,羟甲基二氧杂
环戊烯甲基,羟基(1到6个碳原子的烷基),单或双(1到6个碳原子的烷氧基)(1到6个碳原子的烷基),(1到6个碳原子的烷基)
硫(1到6个碳原子的烷基),(1到6个碳原子的烷氧基)(1到6个碳原子的烷基)
硫(1到6个碳原子的烷基),
氰基(1到6个碳原子的烷基),二-低烷基
氨基(1到6个碳原子的烷基),烯基,炔基或环烷基; R.sub.2和R.sub.3各自独立地为氢,1到3个碳原子的烷基,1到3个碳原子的烷氧基或卤素;以及Z为
咪唑-2-基或
咪唑-4-基;但是,当R.sub.1为直链或支链烷基,烯基,炔基,环烷基或
氰基,而R,R.sub.2和R.sub.3为氢时,Z不是
咪唑-4-基;它们的互变异构体和非毒性、药理学上可接受的酸盐也是有用的抗溃疡剂和胃酸分泌
抑制剂。