THERAPEUTIC AGENT AGAINST CHRONIC OBSTRUCTIVE RESPIRATORY DISEASE AND METHOD FOR THE TREATMENT OF CHRONIC OBSTRUCTIVE RESPIRATORY DISEASE WITH THIS MEDIUM

摘要

This therapeutic agent for chronic obstructive pulmonary disease comprises, an active ingredient, at least one of a 7-aminoquinolinone derivative represented by the general formula (I): wherein R 1 represents a hydrogen atom or an alkyl group; R 2 and R 3 each represents a group selected from a hydrogen atom, an acyl group, an alkyl group and an alkenyl group; and R 4 and R 5 each represents a group selected from a hydrogen atom, an acyl group, an alkyl group, an alkenyl group and an aralkyl group, and its physiologically acceptable salt.