申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US04514401A1
公开(公告)日:1985-04-30
Novel carbostyril derivatives represented by the general formula (1), ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group or a phenyl-lower alkyl group; R.sup.2 is a lower alkanoyl group, a lower alkoxycarbonyl group, a furoyl group, a lower alkane-sulfonyl group, a substituted benzoyl group, a substituted phenyl-lower alkenylcarbonyl group, a phenoxy-lower alkyl group, or a substituted phenylsulfonyl group; A is a lower alkylene group; the carbon-carbon bond between 3- and 4-positions in the carbostyril skeleton is a single or double bond; and the substituted position of the side-chain of the formula, ##STR2## may be of 5-, 6-, 7- or 8-position in the carbostyril skeleton; and acid addition salts thereof. The carbostyril derivatives of the general formula (1) of the present invention and acid addition salts thereof have myocardial contraction increasing activity (positive inotropic activity), coronary blood flow increasing activity and hypotensive activity. They are useful as cardiotonics for curing various heart diseases such as congestive heart failure, mitralism, auricular fibrillation, auricular flutter, paroxysmal atrial tachycardia and the like.
一种以通式(1)表示的新型羧基喹啉衍生物,其中R.sup.1是氢原子、较低的烷基、较低的烯基、较低的炔基或苯基较低的烷基;R.sup.2是较低的烷酰基、较低的烷氧羰基、呋喃基、较低的烷磺酰基、取代苯甲酰基、取代苯基较低的烯基羰基、苯氧基较低的烷基或取代苯磺酰基;A是较低的烷撑基;在羧基喹啉骨架的3-和4-位置之间的碳-碳键是单键或双键;以及通式的侧链的取代位置,可能是在羧基喹啉骨架的5-、6-、7-或8-位置;及其酸盐。本发明的通式(1)的羧基喹啉衍生物及其酸盐具有增加心肌收缩活性(正肌力活性)、增加冠脉血流活性和降压活性。它们可用作治疗各种心脏疾病如充血性心力衰竭、二尖瓣病、心房颤动、心房扑动、阵发性心房扑动等的心力补充剂。