申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0060697A1
公开(公告)日:1982-09-22
This invention relates to heterocyclic 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:
in which R1 and R2, same or different, are hydrogen or 1-10C alkyl, 3-8C cycloalkyl, 4-14C cycloalkylalkyl, each alkyl, cycloalkyl or cycloalkylalkyl optionally carrying one or more F, Cl or Br atoms, provided that one of R1 and R2 is halogen-substituted, or R2 is hydrogen and R1 is RS-E-W- in which W is 2-6 alkylene optionally substituted by 1 or 2 1-4C alkyls, E is O,S,SO, SO2 or NR6 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; ring X is a heterocyclic ring; A is phenylene or 5-7C cycloalkylene, or a 1-8C alkylene into which is optionally inserted one or two groups; and R3 and R4 are a variety of radicals 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杂环衍生物。根据本发明,提供了一种式 I 的胍衍生物:
其中 R1 和 R2(相同或不同)为氢或 1-10C 烷基、3-8C 环烷基、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 R1 和 R2 中的一个被卤素取代、或 R2 为氢,R1 为 RS-E-W-,其中 W 为可选被 1 或 2 个 1-4C 烷基取代的 2-6 亚烷基,E 为 O、S、SO、SO2 或 NR6,其中 R6 为 H 或 1-6C 烷基,R5 为 H 或可选被 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;环 X 是杂环;A 是亚苯基或 5-7C 环亚烷基,或 1-8C 亚烷基,其中可选择插入一个或两个基团;R3 和 R4 是各种基团及其药学上可接受的酸加成盐。此外,还介绍了制造工艺和药物组合物。