The invention relates to compounds of formula (I),
wherein
R1 represents a C3-7 cycloalkyl-(C1-4) alkyl group or a C3-10 alkynyl group; and one of the groups represented by R2, R3 and R4 is a hydrogen atom or a C1-6 alkyl, C3-7 cycloalkyl, C2-6 alkenyl or phenyl-(C1-3) alkyl group and each of the other two groups, which may be the same or different, represents a hydrogen atom or a C1-6 alkyl group; and physiologically acceptable salts and solvates, e.g. hydrates, thereof.
The compounds are potent selective antagonists at 5-hydroxytryptamine receptors and are useful in the treatment of psychotic disorders such as schizophrenia or mania and in the treatment of anxiety, pain, gastric stasis, symptoms of gastrointestinal dysfunction, migraine and nausea.
本发明涉及式 (I) 的化合物、
其中
R1代表C3-7环烷基-(C1-4)烷基或C3-10炔基;R2、R3和R4所代表的基团之一是氢原子或C1-6烷基、C3-7环烷基、C2-6烯基或苯基-(C1-3)烷基,另外两个基团(可以相同或不同)分别代表氢原子或C1-6烷基;及其生理学上可接受的盐和溶液,如
水合物。
这些化合物是 5-羟
色胺受体的强效选择性拮抗剂,可用于治疗精神障碍,如精神分裂症或躁狂症,以及治疗焦虑、疼痛、胃淤血、胃肠功能紊乱症状、偏头痛和恶心。