申请人:Imperial Chemical Industries, PLC
公开号:US04570000A1
公开(公告)日:1986-02-11
The invention relates to nitrogen heterocycles 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-lOC 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.3 --E--W is 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.4 in which R.sup.4 is H or 1-6C alkyl, R.sup.3 is H or 1-6C alkyl optionally substituted by 1 or 2 1-4C alkyls, or R.sup.3 and R.sup.4 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, 1-1OC alkyl, 3-8C cycloalkyl, 4-14C cycloalkylalkyl, 3-6C alkenyl, 3-6C alkynyl, 1-6C alkanoyl, 6-1OC 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; ring Y is a heterocyclic ring described in the specification: and the pharmaceutically-acceptable acid-addition salts thereof. Manufacturing processes and pharmaceutical compositions are also described.
本发明涉及一种氮杂环化合物,它们是组胺H-2拮抗剂并且抑制胃酸分泌。根据本发明,提供了式I的鸟氨酸衍生物:- ##STR1##其中R1和R2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R1和R2中的一个被卤素取代,或者R2是氢,R1是R3-E-W,W是2-6C烷基,可选地被1或2个1-4C烷基取代,E是O,S,SO,SO.sub.2或NR4,其中R4是H或1-6C烷基,R3是H或1-6C烷基,可选地被1或2个1-4C烷基取代,或者R3和R4连接成吡咯烷,哌嗪,吗啉,哌嗪或N-甲基哌嗪环,或者R2是H,R1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酰基,6-10C芳基,7-11C芳基烷基或7-11C芳酰基;环X是规定在说明书中的杂环;A是苯基或5-7C环烷基,或者是可选地插入一个或两个基团的1-8C烷基;环Y是说明书中描述的杂环;以及其药学上可接受的酸加成盐。还描述了制造工艺和制药组合物。