Compounds of formula (I) and pharmaceutically acceptable salts thereof:
wherein
X is a phenyl group or a monocyclic 5 or 6 membered heteroaryl group, either of which group is optionally fused to a saturated or unsaturated 5-7 membered carbocyclic or heterocyclic ring;
A is a linking moiety;
Z is oxygen or sulphur; and
R is methyl or ethyl;
having 5-HT₃ receptor antagonist activity.
式 (I) 的化合物及其药学上可接受的盐类:
其中
X 是苯基或单环 5 或 6 个成员的杂芳基,其中任一基团可选择与饱和或不饱和的 5-7 个成员的碳环或杂环融合;
A 是连接分子
Z 是氧或
硫;以及
R 是甲基或乙基;
具有 5-HT₃ 受体拮抗剂活性。