Compounds of formula I,
1
wherein
R
1
represents C
1-4
alkoxy optionally substituted by one or more fluorine atoms;
R
2
represents H or C
1-6
alkoxy optionally substituted by one or more fluorine atoms;
R
3
represents a 5- or 6-membered heterocyclic ring, the ring being optionally substituted;
R
4
represents a 4-, 5-, 6-, or 7-membered heterocyclic ring, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring, the ring system as a whole being optionally substituted;
X represents CH or N; and
L is absent,
or represents a cyclic group of formula Ia,
2
or represents a chain of formula Ib,
3
and pharmaceutically acceptable salts thereof; are useful in therapy, in particular in the treatment of benign prostatic hyperplasia.
化合物的公式为I,其中R1代表C1-4烷氧基,可以选择性地被一个或多个
氟原子取代;R2代表H或C1-6烷氧基,可以选择性地被一个或多个
氟原子取代;R3代表一个5-或6-成员杂环,该环可以选择性地被取代;R4代表一个4-、5-、6-或7-成员杂环,该环可以选择性地与苯环或5-或6-成员杂环融合,整个环系统可以选择性地被取代;X代表CH或N;L不存在,或代表公式Ia的循环基团,或代表公式Ib的链状基团,以及其药学上可接受的盐;在治疗中是有用的,特别是在治疗良性前列腺增生方面。