申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04762839A1
公开(公告)日:1988-08-09
Novel quinazolinone compounds of the formula: ##STR1## wherein R is hydrogen atom or a lower alkyl, R.sup.1 is a lower alkyl, a substituted or unsubstituted phenyl or an aralkyl, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are each hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, a lower alkoxycarbonyl or a lower alkoxycarbonyl-lower alkenyl, or two adjacent groups of R.sup.2,R.sup.3, R.sup.4 and R.sup.5 when taken together form methylenedioxy and the other two are hydrogen atom, and a salt thereof, which are useful for the prophylaxis and treatment of various diabetic complications, and processes for the preparation thereof, and a pharmaceutical composition containing said compound as an active ingredient.
新型喹唑啉酮化合物的化学式为:##STR1## 其中R为氢原子或较低的烷基,R.sup.1为较低的烷基,取代或未取代的苯基或芳基烷基,R.sup.2、R.sup.3、R.sup.4和R.sup.5相同或不同,分别为氢原子、卤原子、较低的烷基、较低的烷氧基、较低的烷氧羰基或较低的烷氧羰基-较低的烯基,或者当R.sup.2、R.sup.3、R.sup.4和R.sup.5中的两个相邻基团结合形成亚甲二氧基时,另外两个为氢原子,以及其盐。这些化合物对于预防和治疗各种糖尿病并发症非常有用,以及其制备方法,以及含有该化合物作为活性成分的药物组合物。