申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0060094A2
公开(公告)日:1982-09-15
The invention relates to guanidine 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:-
in which R' and R2, 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' and R2 is halogen substituted, or R2 is hydrogen and R' is R5-E-W in which W is 2-6C alkylene optionally substituted by 1 or 2 1-4C alkyls, E is O,S or NR5 in which R6 is H or 1-6C alkyl, R5 is H or 1-6C alkyl optionally substituted by 1 or 2 1-4C alkyls, or R5 and R6 are joined to form a pyrrolidine, piperidine, morpholine, piperazine or N-methylpiperazine ring;t ring X is a heterocyclic ring as defined in the specification; A is phenylene or 5-7C cycloalkylene, or a 1-SC alkylene into which is optionally inserted one or two groups; D is 0 or S; and R3 and R4 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.
本发明涉及组胺 H-2 拮抗剂和抑制胃酸分泌的胍衍生物。根据本发明提供了一种式 I 的胍衍生物
其中R'和R2,相同或不同,为氢或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带一个或多个F.Cl或Br原子,条件是R'和R2中的一个被卤素取代,或R2是氢,R'是R5-E-W,其中W是任选被1或2个1-4C烷基取代的2-6C亚烷基,E是O、S或NR5,其中R6是H或1-6C烷基,R5是H或任选被1或2个1-4C烷基取代的1-6C烷基,或R5和R6连接形成吡咯烷、哌啶、吗啉、哌嗪或N-甲基哌嗪环;t 环 X 是本说明书中定义的杂环;A 是亚苯基或 5-7C 环亚烷基,或 1-SC 亚烷基,其中可选择插入一个或两个基团;D 是 0 或 S;R3 和 R4 是氢或本说明书中描述的各种基: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。