申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US05756735A1
公开(公告)日:1998-05-26
The present invention relates to novel xanthine derivatives of the formula (I) which are selectively antagonistic to an adenosine A.sub.2 receptor, and pharmaceutically acceptable salts thereof. Formula (I): ##STR1## In the formula, R.sup.1 and R.sup.2 are the same or different and each represents a hydrogen atom, a propyl group, a butyl group or an allyl group; R.sup.3 represents a hydrogen atom or a lower alkyl group; Y.sup.1 and Y.sup.2 are the same or different and each represents a hydrogen atom or a methyl group; and Z represents a substituted or unsubstituted phenyl group, a pyridyl group, an imidazolyl group, a furyl group or a thienyl group.
本发明涉及一种新型黄嘌呤衍生物(I)及其药学上可接受的盐,该衍生物选择性地拮抗腺苷A2受体。公式(I):##STR1## 在该式中,R.sup.1和R.sup.2相同或不同,分别代表氢原子、丙基基团、丁基基团或烯丙基基团;R.sup.3代表氢原子或较低的烷基基团;Y.sup.1和Y.sup.2相同或不同,分别代表氢原子或甲基基团;Z代表取代或未取代的苯基团、吡啶基团、咪唑基团、呋喃基团或噻吩基团。