Pyrazolo[1,5-c]quinazoline derivatives and analgesic compositions
containing them
    7.
    发明授权
    Pyrazolo[1,5-c]quinazoline derivatives and analgesic compositions containing them 失效
    吡唑并[1,5-c]喹唑啉衍生物和含有它们的镇痛组合物

    公开(公告)号:US4303660A

    公开(公告)日:1981-12-01

    申请号:US150349

    申请日:1980-05-16

    CPC分类号: C07D487/04 C07D231/16

    摘要: The invention relates to novel pyrazolo[1,5-c]quinazoline derivatives of the general formula I ##STR1## wherein R represents a hydrogen atom, a C.sub.1-4 alkyl group or an acyl group,R.sub.1 represents a hydrogen atom, a C.sub.1-12 alkyl group, a C.sub.3-8 cycloalkyl group, a C.sub.2-4 alkenyl group, an aralkyl group, wherein the alkyl group has 1 to 4 carbon atoms, a phenylalkenyl group, wherein the alkenyl group has 2 to 4 carbon atoms, furthermore a carboxy group or a phenyl group optionally substituted by one or more substituents selected from the group consisting of halogen, hydroxy, C.sub.1-4 alkoxy, nitro or di(C.sub.1-4 alkyl)amino groups, orR and R.sub.1 may form together a valence bond,R.sub.2 represents a hydrogen atom, a C.sub.1-4 alkyl or a phenyl group, orR.sub.1 and R.sub.2 may form together a C.sub.2-7 alkylene group,R.sub.3 represents a nitro group, an amino group, an alkylamino group, a dialkylamino group, wherein the alkyl groups have 1 to 4 carbon atoms, an alkylideneimino group, wherein the alkylidene group has 1 to 4 carbon atoms, a benzylideneimino group or an acylamino group,and pharmaceutically acceptable acid addition salts thereof.The novel compounds of the general formula I can be employed primarily as analgesic agents.

    摘要翻译: 本发明涉及通式I(XIX)的新颖的吡唑并[1,5-c]喹唑啉衍生物,其中R表示氢原子,C1-4烷基或酰基,R1表示氢原子, C1-12烷基,C3-8环烷基,C2-4烯基,其中烷基具有1至4个碳原子的芳烷基,苯基烯基,其中烯基具有2至4个碳原子 此外,羧基或任选被一个或多个选自卤素,羟基,C 1-4烷氧基,硝基或二(C 1-4烷基)氨基的取代基取代的苯基,或R和R 1可以一起形成 价键,R2表示氢原子,C1-4烷基或苯基,或R1和R2可以一起形成C2-7亚烷基,R3表示硝基,氨基,烷基氨基,二烷基氨基 基团,其中烷基具有1至4个碳原子,亚烷基亚氨基,其中亚烷基具有1至4个碳 n原子,亚苄基亚氨基或酰氨基,及其药学上可接受的酸加成盐。 通式I的新化合物可以主要用作止痛剂。