申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US04415572A1
公开(公告)日:1983-11-15
A piperazinylcarbostyril compound of the formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, or a phenyl-lower alkyl group; R.sup.2 represents a hydrogen atom or a lower alkoxy group; R.sup.3 represents a hydrogen atom, a lower alkanoyl group, a furoyl group, a pyridylcarbonyl group, a lower alkanesulfonyl group, a lower alkoxycarbonyl group, a lower alkoxycarbonyl-lower alkyl group, a phenylsulfonyl group which may be substituted with a lower alkyl group on the benzene ring thereof, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a phenylcarbonyl group, a phenyl-lower alkyl group or a phenyl-lower alkanoyl group where each of said phenylcarbonyl group, phenyl-lower alkyl group and phenyl-lower alkanoyl group may be substituted with 1 to 3 of a lower alkoxy group, a halogen atom, a lower alkyl group, a cyano group, a nitro group, an amino group, a hydroxy group, a lower alkanoylamino group, a lower alkylthio group and a lower alkanoyloxy group, or with a lower alkylenedioxy group on the benzene ring thereof; and the bonding between the 3- and 4-positions of the carbostyril nucleus is a single bond or a double bond; or its pharmaceutically acceptable salt, useful as a cardiotonic agent.
一种具有以下式子(I)的哌嗪基氨基苯甲酰化合物:##STR1## 其中,R.sup.1代表氢原子、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代表氢原子或较低的烷氧基;R.sup.3代表氢原子、较低的烷酰基、呋喃酰基、吡啶基羧酰基、较低的烷基磺酰基、较低的烷氧羰基基、较低的烷氧羰基-较低的烷基、苯基磺酰基,其苯环上可以有较低的烷基取代物,较低的烷基、较低的烯基、较低的炔基、苯基羧酰基、苯基-较低的烷基或苯基-较低的烷酰基,其中每个苯基羧酰基、苯基-较低的烷基和苯基-较低的烷酰基可以被1到3个较低的烷氧基、卤素原子、较低的烷基、氰基、硝基、氨基、羟基、较低的烷酰胺基、较低的烷硫基和较低的烷氧基取代,或在其苯环上具有较低的烷二氧基基团;以及该羧基苯甲酰核的3-和4-位置之间的键是单键或双键;或其药学上可接受的盐,作为心脏强心剂。