申请人:ICI Americas Inc.
公开号:US04696933A1
公开(公告)日:1987-09-29
The invention relates to amide derivatives which are histamine H-2 antagonists and which inhibit gastric acid secretion. According to the invention there is provided a guanidine derivative of the formula I: ##STR1## in which R.sup.1 is a hydrogen or 1-10C alkyl, 3-8C cycloalkyl, 4-14C cycloalkyl, 3-6C alkenyl, 3-6C alkynyl, 1-6C alkanoyl, 6-10C aryl, 7-11C aralkyl or 7-11C aroyl, the aryl, aralkyl and aroyl radical being optionally substituted; ring X is a heterocyclic ring as defined in the specification; A is phenylene or 5-7C cycloalkylene, or a 1-8C alkylene into which is optionally inserted one or two groups; D is O or S; and R.sup.2 and R.sup.3 are hydrogen or a variety of radicals described in the specification: and the pharmaceutically-acceptable acid-addition salts thereof. Manufacturing processes and pharmaceutical compositions are also described.
本发明涉及酰胺衍生物,其为组胺H-2受体拮抗剂并抑制胃酸分泌。根据本发明,提供了式I的胍衍生物:##STR1## 其中,R.sup.1是氢或1-10C烷基,3-8C环烷基,4-14C环烷基,3-6C烯基,3-6C炔基,1-6C烷酰基,6-10C芳基,7-11C芳基烷基或7-11C芳酰基,其中芳基、芳基烷基和芳酰基基团可选地被取代;环X是如规范中定义的杂环;A是苯基或5-7C环烷基,或者是可选地插入一到两个基团的1-8C烷基;D是O或S;R.sup.2和R.sup.3是氢或规范中描述的多种基团;以及其药学上可接受的酸加合物盐。同时描述了制造工艺和制药组合物。