The present invention provides a novel pyrazole derivative and an androgen receptor antagonist containing the derivative. The present invention provides a compound represented by the formula (I′)
wherein R
1
is a hydrogen atom, a group via a carbon atom, a group via a nitrogen atom, a group via an oxygen atom, or a group via a sulfur atom; R
2
is a phenyl group having cyano (the phenyl group may further have substituent(s) other than cyano); R
3
is a hydrogen atom, a group via a carbon atom, a group via a nitrogen atom, a group via an oxygen atom, or a group via a sulfur atom; R
4
is a cyclic group optionally having substituent(s); and X is methylene optionally having substituent(s), or CO, or a salt thereof.
本发明提供了一种新的
吡唑衍
生物和含有该衍
生物的雄激素受体
拮抗剂。本发明提供了一种由式(I')表示的化合物,其中R1是
氢原子,通过
碳原子的基团,通过
氮原子的基团,通过
氧原子的基团或通过
硫原子的基团; R2是具有
氰基的
苯基(
苯基可以进一步具有除
氰基以外的取代基); R3是
氢原子,通过
碳原子的基团,通过
氮原子的基团,通过
氧原子的基团或通过
硫原子的基团; R4是可选地具有取代基的环状基团; X是可选地具有取代基的亚
甲基,或CO,或其盐。