申请人:ICI Americas Inc.
公开号:US04496571A1
公开(公告)日:1985-01-29
The invention relates to carbonyl derivatives which are histamine H-2 antagonists and which inhibit gastric acid secretion. According to the invention where 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 alkyls, 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 H and R.sup.1 is H, 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; 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; R.sup.4 is H or 1-6C alkyl; R.sup.3 is H 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.
本发明涉及羰基衍
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和R.sup.2,相同或不同,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,或者R.sup.2是氢且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1-6C烷基,可选地被1或2个1-4C烷基取代,或者R.sup.5和R.sup.6结合形成
吡咯烷,
哌嗪,吗啉,
哌嗪或
N-甲基哌嗪环,或者R.sup.2是H且R.sup.1是H,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;环X是规范中定义的杂环;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.4是H或1-6C烷基;R.sup.3是H或规范中描述的各种基团。还描述了制造工艺和制药组合物及其药学上可接受的酸加成盐。