申请人:Senju Pharmaceutical Co., Ltd.
公开号:US05981530A1
公开(公告)日:1999-11-09
The present invention provides a piperazine derivative of the following formula or a pharmacologically acceptable salt thereof ##STR1## wherein R.sub.1 represents a benzene ring, naphthalene ring, quinoline ring, indole ring or chroman ring that may be substituted by lower alkyl, lower alkoxy and/or hydroxy; R.sub.2 and R.sub.3 independently represent hydrogen or lower alkyl. The compound of the present invention has potent antiallergic activity and can therefore be used with advantage in the treatment of various allergic diseases.
本发明提供了一种具有以下通式的哌嗪衍生物或其药学上可接受的盐 ##STR1## 其中R.sub.1代表苯环、萘环、喹啉环、吲哚环或色满环,这些环可被低级烷基、低级烷氧基和/或羟基取代;R.sub.2和R.sub.3各自独立地代表氢或低级烷基。本发明的化合物具有强大的抗过敏活性,因此可以有效地用于治疗各种过敏性疾病。