申请人:Imperial Chemical Industries PLC
公开号:US04451463A1
公开(公告)日:1984-05-29
This invention relates to alcohol 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 and R.sup.2, same or different, are hydrogen or 1-10C alkyl, 3-8C cycloalkyl or 4-14C cycloalkylalkyl, each alkyl, cycloalkyl or cycloalkylalkyl optionally carrying one or more F, Cl or Br atoms, provided that one of R.sup.1 and R.sup.2 is halogen-substituted, or R.sup.2 is hydrogen and R.sup.1 is R.sup.5 --E--W-- in which W is 2-6C alkylene optionally substituted by 1 or 2 1-4C alkyl, E is O, S, SO, SO.sub.2 or NR.sup.6 in which R.sup.6 is H or 1-6C alkyl, R.sup.5 is H or 1-6C alkyl optionally substituted by 1 or 2 1-4C alkyls, or R.sup.5 and R.sup.6 are joined to form a pyrrolidine, piperidine, morpholine, piperazine or N-methylpiperazine ring, or R.sup.2 is hydrogen and R.sup.1 is 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 arylalkyl or 7-11C aroyl, the aryl, arylalkyl and aroyl radicals 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 oxygen or sulphur; R.sup.3, R.sup.4 and R.sup.5 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.
本发明涉及一种酒精衍生物,它是组胺H-2受体拮抗剂,能够抑制胃酸分泌。根据本发明,提供了式I的胍衍生物:##STR1## 其中,R.sup.1和R.sup.2相同或不同,分别是氢或1-10C烷基,3-8C环烷基或4-14C环烷基烷基,每个烷基、环烷基或环烷基烷基可选地携带一个或多个F、Cl或Br原子,前提是R.sup.1和R.sup.2中的一个是卤素取代的,或者R.sup.2是氢,R.sup.1是R.sup.5--E--W--,其中W是可选地被1或2个1-4C烷基取代的2-6C烷基,E是O、S、SO、SO.sub.2或NR.sup.6,其中R.sup.6是H或1-6C烷基,R.sup.5是H或可选地被1或2个1-4C烷基取代的1-6C烷基,或者R.sup.5和R.sup.6连接形成吡咯烷、哌嗪、吗啉、哌嗪或N-甲基哌嗪环,或者R.sup.2是氢,R.sup.1是氢或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是规定在说明书中的杂环,A是苯基或5-7C环烷基或可选地插入一到两个基团的1-8C烷基,D是氧或硫,R.sup.3、R.sup.4和R.sup.5是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合盐。还描述了制造工艺和制药组合物。