申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US05447933A1
公开(公告)日:1995-09-05
A novel xanthine derivative of the formula (I): ##STR1## wherein one of R.sup.1 and R.sup.2 represents substituted or unsubstituted lower alkyl, lower alkenyl, lower alkynyl, substituted or unsubstituted alicyclic alkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted benzyl; and the other represents --(CH.sub.2).sub.m --X wherein m is 2 or 3, and X is amino substituted phenyl. Q represents ##STR2## (wherein R.sup.3 and R.sup.4 are the same or different and are substituted or unsubstituted alicyclic alkyl), ##STR3## or a pharmacologically accetable salt thereof is disclosed. This derivative has anti-dementia activity.
一种新的黄嘌呤衍生物,化学式为(I):其中R.sup.1和R.sup.2中的一个代表取代或未取代的较低烷基、较低烯基、较低炔基、取代或未取代的脂环烷基、取代或未取代的苯基或取代或未取代的苄基;另一个代表--(CH.sub.2).sub.m --X,其中m为2或3,X为氨基取代的苯基。Q代表其中R.sup.3和R.sup.4相同或不同且为取代或未取代的脂环烷基,或其药理学上可接受的盐。该衍生物具有抗痴呆活性。