A pyrazolo[4,3-d]pyrimidine derivative having the formula:
wherein R' is lower alkyl or phenyl which is unsubstituted or substituted by lower alkyl, lower alkoxy or halogen; R2 is a saturated or unsaturated, straight chain or branched aliphatic group having from 2 to 22 carbon atoms or phenyl-lower alkyl with the phenyl group unsubstituted or substituted by lower alkyl, lower alkoxy or halogen; and A is an alkylene group having from 1 to 3 carbon atoms which is unsubstituted or substituted by methyl, or a pharmaceutically acceptable salt thereof
一种
吡唑并[4,3-d]
嘧啶衍
生物,其式如下
其中 R' 是低级烷基或未被低级烷基、低级烷氧基或卤素取代或取代的苯基;R2 是具有 2 至 22 个碳原子的饱和或不饱和、直链或支链脂肪族基团或苯基-低级烷基,其中苯基未被低级烷基、低级烷氧基或卤素取代或取代;以及 A 是具有 1 至 3 个碳原子的未被甲基取代或取代的亚烷基,或其药学上可接受的盐