申请人:Imperial Chemical Industries Limited
公开号:US04234735A1
公开(公告)日:1980-11-18
The invention relates to guanidine derivatives of imidazoles and thiazoles which are histamine H-2 antagonists and which inhibit the secretion of gastric acid, to methods for their manufacture, to pharmaceutical compositions containing them and to methods of using such guanidine derivatives and compositions. The guanidine derivatives are of the general formula I: ##STR1## in which X is S or NH, Y is CH.sub.2, a direct bond or a vinylene radical, m is 0 to 4 and n is 1 to 4, R.sup.1 is hydrogen, halogen or alkyl, R.sup.2 is hydrogen, alkyl, alkanoyl or aroyl, A is a 3,4-dioxocyclobuten-1,2-diyl radical or C.dbd.Z in which Z is O, S, NCN, NNO.sub.2, CHNO.sub.2, NCONH.sub.2, C(CN).sub.2, NCOR.sup.3, NCO.sub.2 R.sup.3, NSO.sub.2 R.sup.3 or NR.sup.4 in which R.sup.3 is alkyl or aryl and R.sup.4 is hydrogen or alkyl, B is alkoxy or alkylthio or NR.sup.5 R.sup.6 in which R.sup.5 and R.sup.6 are independently hydrogen, alkyl, alkenyl, cycloalkyl, hydroxyalkyl, alkoxyalkyl, alkylaminoalkyl or dialkylaminoalkyl; and the salts thereof.
本发明涉及
咪唑和
噻唑的
胍衍
生物,它们是
组胺H-2拮抗剂,可以抑制胃酸分泌,涉及其制备方法,含有它们的制药组合物以及使用这种
胍衍
生物和组合物的方法。该
胍衍
生物的一般式为I:##STR1## 其中X为S或NH,Y为CH.sub.2,直接键或
乙烯基,m为0至4,n为1至4,R.sup.1为氢,卤素或烷基,R.sup.2为氢,烷基,烷酰基或芳酰基,A为3,4-二氧杂环丁-1,2-二基基团或C.dbd.Z,其中Z为O,S,NCN,NNO.sub.2,CHNO.sub.2,NCONH.sub.2,C(CN).sub.2,NCOR.sup.3,NCO.sub.2 R.sup.3,NSO.sub.2 R.sup.3或NR.sup.4,其中R.sup.3为烷基或芳基,R.sup.4为氢或烷基,B为烷氧基或烷
硫基或NR.sup.5R.sup.6,其中R.sup.5和R.sup.6独立地为氢,烷基,烯基,环烷基,羟基烷基,烷氧基烷基,烷基
氨基烷基或二烷基
氨基烷基;以及它们的盐。