申请人:Dainippon Ink and Chemicals, Inc.
公开号:US06136822A1
公开(公告)日:2000-10-24
The present invention relates to a simple method for preparing a quinolinone derivative, which is effective as a medicine, e.g., as an agent for treating allergic diseases and the like; novel amide derivatives effective as an intermediate in the method; novel quinolinone derivatives obtained according to the method; and an anti-allergic agent containing a quinolinone derivative and/or physiological salt of the same as the active ingredients. The quinolinone derivative is expressed by the following general formula (II); and the method is characterized in that an amide derivative, expressed by the following formula (I), is reacted with a basic agent, followed by intramolecular ring formation: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group, an alkyl group containing a hydroxyl group an alkenyl group, or an aryl group; R.sub.2 represents an alkyl group, an alkenyl group, an aryl group, or an aralkyl group; R.sub.3 represents a reactive carboxyl group; and R.sub.4 to R.sub.7 represent, respectively and independently, a hydrogen atom; a hydroxyl group; an alkyl group; an alkoxy group; an alkenyl group; an alkenyloxy group; an aryl group; an aryloxy group; an aralkyloxy group; a R.sub.8 R.sub.9 N group wherein R.sub.8 and R.sub.9 represent, respectively and independently, a hydrogen atom, an alkyl group, an alkenyl group an aralkyl group, or an acyl group; a nitro group; or a R.sub.10 OOC group wherein R.sub.10 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or an aralkyl group; ##STR2## wherein R.sub.1, R.sub.2 and R.sub.4 to R.sub.7 represent, respectively, the same constituents as described in formula (I).
本发明涉及一种简单的制备喹啉酮衍生物的方法,该方法作为药物具有有效性,例如作为治疗过敏性疾病等的药剂;作为该方法中的中间体有效的新酰胺衍生物;根据该方法获得的新喹啉酮衍生物;以及含有喹啉酮衍生物和/或其生理盐作为活性成分的抗过敏剂。喹啉酮衍生物由以下通用式(II)表示;该方法的特征在于,将由以下式(I)表示的酰胺衍生物与碱性试剂反应,然后进行分子内环形成:其中R.sub.1代表氢原子、烷基、含有羟基的烷基、烯基或芳基;R.sub.2代表烷基、烯基、芳基或芳基烷基;R.sub.3代表反应性羧基;R.sub.4到R.sub.7分别且独立地代表氢原子;羟基;烷基;烷氧基;烯基;烯氧基;芳基;芳氧基;芳基烷氧基;R.sub.8 R.sub.9 N基团,其中R.sub.8和R.sub.9分别且独立地代表氢原子、烷基、烯基、芳基烷基或酰基;硝基团;或R.sub.10 OOC基团,其中R.sub.10代表氢原子、烷基、烯基、芳基或芳基烷基;其中R.sub.1、R.sub.2和R.sub.4到R.sub.7分别代表与式(I)中描述的相同的成分。