Histamine H.sub.2 -antagonists of the formula ##STR1## wherein p is 1 or 2; R.sup.1 is hydroxy, amino, substituted amino or a 5- to 9-membered fully saturated nitrogen-containing heterocyclic ring attached via its nitrogen atom; m is an integer of from 0 to 2; n is an integer of from 2 to 4; Z is sulfur, oxygen or methylene; and A is an optionally substituted phenyl, imidazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, triazolyl, thiadiazolyl, oxadiazolyl, furyl, thienyl or pyridyl ring; and nontoxic pharmaceutically acceptable salts, hydrates, solvates or N-oxides thereof are novel anit-ulcer agents. Intermediates and processes for their preparation are disclosed.
结构式为 ##STR1## 的
组胺H.sub.2-拮抗剂,其中p为1或2;R.sup.1为羟基,
氨基,取代
氨基或通过其氮原子连接的具有5-至9-成员完全饱和的含氮杂环环;m为0至2的整数;n为2至4的整数;Z为
硫,氧或亚甲基;A为可选取代的苯基,
咪唑基,
噻唑基,
异噻唑基,
噁唑基,
异噁唑基,三唑基,
噻二唑基,氧杂二唑基,
呋喃基,
噻吩基或
吡啶基环;以及其非毒性药学上可接受的盐,
水合物,溶剂合物或N-氧化物是新型抗溃疡剂。公开了它们的中间体和制备方法。