There is provided heterocyclic compounds of the following formula (I):
in which,
A is optionally substituted aryl group or optionally substituted heterocyclic group;
X is oxygen atom, sulfur atom, carbon atom or nitrogen atom;
dotted line shows either presence or absence of bond;
n is integer of 1 or 2; and
Y represents alkylene bond and so on;
or a pharmaceutically acceptable salt thereof.
These compounds have good affinity to α4β2 nicotinic acetylcholine receptors and activate the same to thereby exert a preventive or therapeutic effect on cerebral dysfunction.
提供了下式(I)的
杂环化合物:其中,A为任选取代的芳基或任选取代的杂环基团;X为氧原子、
硫原子、碳原子或氮原子;虚线表示存在或不存在键;n为1或2的整数;Y代表烯键等,或其药学上可接受的盐。 这些化合物对α4β2
烟碱乙酰胆碱受体具有良好的亲和力,并能激活该受体,从而对脑功能障碍起到预防或治疗作用。