申请人:Sumitomo Chemical Company, Limited
公开号:US04002755A1
公开(公告)日:1977-01-11
Triazoloquinazolines of the formula, ##STR1## wherein R.sub.1 is C.sub.1.sub.-4 alkyl or aryl; R.sub.2 and R.sub.3 are independently hydrogen, halogen, trifluoromethyl, nitro, C.sub.1.sub.-4 alkyl or C.sub.1.sub.-4 alkoxy, or R.sub.2 and R.sub.3 together may form methylenedioxy; and R.sub.4 is hydrogen, C.sub.1.sub.-4 alkyl, aralkyl, C.sub.1.sub.-4 haloalkyl, or C.sub.3.sub.-6 cycloalkyl; and pharmaceutically acceptable acid addition salts thereof are prepared by (a) reacting a 2-hydrazinoquinazoline derivative with a carboxylic acid or reactive derivative thereof, (b) cyclizing a 2-acylhydrazinoquinazoline derivative with heating or (c) reacting a triazolylbenzophenone derivative with ammonia. Said triazoloquinazolines and pharmaceutically acceptable acid addition salts thereof show excellent anti-inflammatory and analgesic activities.
该公式为Triazoloquinazolines,其中R.sub.1为C.sub.1.sub.-4烷基或芳基;R.sub.2和R.sub.3分别为氢、卤素、三氟甲基、硝基、C.sub.1.sub.-4烷基或C.sub.1.sub.-4烷氧基,或R.sub.2和R.sub.3可形成亚甲二氧基;R.sub.4为氢、C.sub.1.sub.-4烷基、芳基烷基、C.sub.1.sub.-4卤代烷基或C.sub.3.sub.-6环烷基;以及其药学上可接受的酸盐经由以下方式制备:(a)将2-肼基喹唑啉衍生物与羧酸或其反应性衍生物反应,(b)加热2-酰基肼基喹唑啉衍生物进行环化,或(c)将三唑基苯甲酮衍生物与氨反应。所述Triazoloquinazolines及其药学上可接受的酸盐具有优异的抗炎和镇痛活性。