QUINOLINE DERIVATIVE OR SALT THEREOF AND REMEDY FOR CARDIAC DISEASES CONTAINING THE SAME
申请人:KOWA CO. LTD.
公开号:EP0638571A1
公开(公告)日:1995-02-15
A quinoline derivative represented by general formula (1), a medicinally acceptable salt thereof, and a remedy for cardiac diseases containing the same, wherein ring A represents a furan, dihydrofuran or dioxolane ring, R¹ represents hydroxy, carboxy, alkoxycarbonyl, etc., R²s may be the same or different from each other and each represents hydrogen, alkyl, etc., R³ and R⁴ may be the same or different from each other and each represents hydrogen, halogen, alkyl, amino, alkoxy, etc., R⁵, R⁶, R⁷ and R⁸ may be the same or different from one another and each represents hydrogen or alkyl, m represents an integer of 0 to 3, and symbol ...... means that there may be a double bond formed by R⁶ and R⁸. The compound (1) has a positively inotropic effect on myocardia and an antiarrhythmic effect and can dilate blood vessels without extremely increasing the heart rate. Therefore, a remedy for cardiac diseases containing the same as the active ingredient is remarkably useful for treating cardiac insufficiency, arrhythmia, and so forth.
一种由通式(1)代表的喹啉衍生物、其药用盐以及含有该衍生物的治疗心脏病的药物,其中环A代表呋喃、二氢呋喃或二氧戊环,R¹代表羟基、羧基、烷氧羰基等,R²s可以相同或不同,各自代表氢、烷基等、R³ 和 R⁴ 可以相同或互不相同,各自代表氢、卤素、烷基、氨基、烷氧基等,R⁵、R⁶、R⁷ 和 R⁸ 可以相同或互不相同,各自代表氢或烷基,m 代表 0 至 3 的整数,符号 ...... 表示 R⁶ 和 R⁸ 可以形成双键。化合物(1)对心肌具有正性肌力作用和抗心律失常作用,并能扩张血管而不会极度增加心率。因此,以该化合物为有效成分的心脏疾病治疗药物对治疗心功能不全、心律失常等有显著作用。