1-Polyhaloalkyl-2(1H)-quinazoline derivatives of the formula, ##STR1## wherein R is polyhaloalkyl having C.sub.2 -C.sub.4 alkyl; and R.sub.1, R.sub.2 and R.sub.3 are individually hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro, trifluoromethyl or halogen, have excellent anti-inflammatory and analgesic activities with very low toxicity. These quinazolinone derivatives can be prepared, for example, by reacting a trihalogenoacetamidobenzophenone derivative with ammonia.
公式为## STR1 ##的Polyhaloalkyl-2(1H)-quinazoline衍
生物,其中R为具有C.sub.2-C.sub.4烷基的Polyhaloalkyl; R.sub.1,R.sub.2和R.sub.3分别为氢,C.sub.1-C.sub.4烷基,C.sub.1-C.sub.4烷氧基,硝基,三
氟甲基或卤素,具有极低毒性的优异抗炎和镇痛活性。例如,可以通过将三卤代乙酰胺基苯并苯酮衍
生物与
氨反应来制备这些
喹唑啉酮衍
生物。