申请人:ICI Americas Inc.
公开号:US04496564A1
公开(公告)日:1985-01-29
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 cycloalkylalkyl, 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.
本发明涉及作为组胺H-2拮抗剂并抑制胃酸分泌的酰胺衍生物。根据本发明,提供了一种胍衍生物,其具有式I的结构:##STR1## 其中R1为氢或1-10C烷基、3-8C环烷基、4-14C环烷基烷基、3-6C烯基、3-6C炔基、1-6C烷酰基、6-10C芳基、7-11C芳烷基或7-11C芳酰基,所述芳基、芳烷基和芳酰基基团可任选地被取代;环X为说明书中定义的杂环环;A为苯二烯或5-7C环烷二烯,或1-8C烷二烯,其中可任选地插入一个或两个基团;D为O或S;R2和R3为氢或说明书中描述的各种基团;以及其药学上可接受的酸加成盐。还描述了制造工艺和药物组合物。