申请人:Japan Energy Corporation
公开号:US06310070B1
公开(公告)日:2001-10-30
A novel purine derivative exhibiting an effect to control inflammatory symptoms characteristic to nephritis and a medicine comprising this compound as an effective ingredient are provided. The compound is represented by the following general formula (I),
wherein R1 is a hydrocarbon group having 17 or less carbon atoms and R2 is a hydrocarbon group having 16 or less carbon atoms, wherein one or more CH2 g roups in the hydrocarbon group which 7013 do not directly bind with the carbon atom at 2 or 7 position of the purine ring replaced are by carbonyl groups, sulfonyl groups, O, or S and/or one or more CH groups in the hydrocarbon group which do not directly bind with the carbon atom at 2 or 7 position of the purine ring are replaced by N, C-halogen, or C—C≡N, or a pharmaceutically acceptable salt thereof.
本发明提供了一种新的嘌呤衍生物,具有控制肾炎特有的炎症症状的效果,并提供了一种以该化合物为有效成分的药物。该化合物由以下通式(I)表示,其中R1是具有17个或更少碳原子的碳氢基团,R2是具有16个或更少碳原子的碳氢基团,其中碳氢基团中与嘌呤环的2或7位置的碳原子没有直接结合的一个或多个CH2基团被羰基基团、磺酰基团、O或S所取代,以及一个或多个碳氢基团中与嘌呤环的2或7位置的碳原子没有直接结合的CH基团被N、C-卤素或C-C≡N所取代,或其药学上可接受的盐。