申请人:Boehringer Ingelheim Pharma KG
公开号:US06492377B1
公开(公告)日:2002-12-10
New imidazotriazolopyrimidine derivatives of the formula
Preferred are those compounds wherein:
R1 denotes methyl, which is optionally substituted by phenyloxy or pyrrole; or
R1 denotes benzyl which is optionally substituted by hydroxy, methoxy, dimethylaminoethoxy or fluorine; or R1 denotes cyclopentyl, furan or phenylethyl;
R2 or R3 denote ethyl, n-propyl, allyl or propargyl;
R4 or R6 denote hydrogen; and,
R5 denotes methyl, n-propyl, tert.butyl, cyclopentyl or norbornenyl.
These are adenosine antagonists are are useful for, inter alia, the treatment of senile dementia of the Alzheimer's type.
新的咪唑三唑吡嘧啶衍生物的化学式首选为:其中:R1代表甲基,可以选择性地被苯氧基或吡咯基取代;或R1代表苄基,可以选择性地被羟基、甲氧基、二甲氨基乙氧基或氟取代;或R1代表环戊基、呋喃基或苯乙基;R2或R3代表乙基、正丙基、烯丙基或丙炔基;R4或R6代表氢;而R5代表甲基、正丙基、叔丁基、环戊基或去甲基环戊基。这些腺苷拮抗剂对治疗阿尔茨海默病型老年性痴呆等疾病有用。