申请人:SmithKline Beckman Intercredit B.V.
公开号:US05143920A1
公开(公告)日:1992-09-01
Substituted 4-aminoquinazoline derivatives of the formula: ##STR1## wherein R.sup.1 is hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.1-6 alkoxy C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-6 cycloalkyl C.sub.1-6 alkyl, phenyl C.sub.1-6 alkyl, the phenyl group being optionally substituted; R.sup.2 is hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, amino, C.sub.1-6 alkylthio, halogen, cyano, hydroxy, C.sub.1-6 alkanoyl or trifuromethyl; m is 1 to 3; R.sup.3 is hydrogen, C.sub.1-6 alkyl, phenyl, C.sub.1-6 alkoxy, C.sub.1-6 alkylthio, C.sub.1-6 alkanoyl, amino, C.sub.1-6 alkylamino, ci-C.sub.1-6 alkylamino, halogen, trifluoromethyl or cyano; n is 1 or 2; and R.sup.4 is hydrogen; or a salt thereof are useful as inhibitors of gastric acid secretion.
公式如下:##
STR1## 其中R.sup.1是
氢,C.sub.1-6烷基,C.sub.1-6烷
氧基,C.sub.1-6烷
氧基C.sub.1-6烷基,C.sub.3-6
环烷基,C.sub.3-6
环烷基C.sub.1-6烷基,
苯基C.sub.1-6烷基,
苯基可以选择性地被取代;R.sup.2是
氢,C.sub.1-6烷基,C.sub.1-6烷
氧基,
氨基,C.sub.1-6烷基
硫基,卤素,
氰基,羟基,C.sub.1-6酰基或三
氟甲基;m为1至3;R.sup.3是
氢,C.sub.1-6烷基,
苯基,C.sub.1-6烷
氧基,C.sub.1-6烷基
硫基,C.sub.1-6烷酰基,
氨基,C.sub.1-6烷基
氨基,ci-C.sub.1-6烷基
氨基,卤素,三
氟甲基或
氰基;n为1或2;R.sup.4是
氢;或其盐可用作胃酸分泌
抑制剂。