申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US05192768A1
公开(公告)日:1993-03-09
A pyrazoloquinoline derivative having the formula (I): ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 independently represent a hydrogen atom or a lower alkyl group; R.sup.4 represents a hydrogen atom, a lower alkyl group, a halogen-substituted lower alkyl group, or a lower alkoxycarbonyl group; the dotted line means that the pyrazole ring has two conjugated double bonds; and R.sup.4 is bonded to the nitrogen atom at the 1-position or 2-position, or pharmacologically acceptable salts thereof. These compounds exhibit excellent anti-inflammatory activity and hepatic insufficiency treating activity.
具有以下式子(I)的吡唑喹啉衍生物:##STR1## 其中,R1、R2和R3独立地表示氢原子或较低的烷基基团;R4表示氢原子、较低的烷基基团、卤代较低的烷基基团或较低的烷氧羰基基团;虚线表示吡唑环具有两个共轭双键;且R4与1-位置或2-位置的氮原子结合,或其药理学上可接受的盐。这些化合物表现出优异的抗炎活性和治疗肝功能不全的活性。