A pyrazolopyrimidine derivative of the formula [I]
wherein R
1
is an optionally substituted aromatic ring group, an optionally substituted lower alkyl group or an optionally substituted amino group; R
2
is an optionally substituted aromatic ring group; R
3
is an optionally substituted lower alkyl group; and R
4
is a hydrogen atom, a lower alkyl group, a halogen atom, a nitro group or an amino group;
or a pharmaceutically acceptable salt thereof is useful as an antagonist of CRF receptor.
公式[I]中的
吡唑吡嗪衍
生物,其中R1是可选取代的芳香环基团、可选取代的较低烷基团或可选取代的
氨基团;R2是可选取代的芳香环基团;R3是可选取代的较低烷基团;R4是
氢原子、较低烷基团、卤原子、硝基或
氨基团;或其药学上可接受的盐,可用作CRF受体
拮抗剂。