The present invention provides [1,2,4]triazolo[1,5-c]pyrimidine derivatives or pharmaceutically acceptable salts thereof which have adenosine A
2A
receptor antagonism and are useful for treating and/or preventing a disease induced by hyperactivity of an adenosine A
2A
receptor, the derivatives being represented by formula (I):
(wherein R
1
represents substituted or unsubstituted aryl or a substituted or unsubstituted aromatic heterocyclic group; R
2
represents a hydrogen atom, halogen, lower alkyl, lower alkanoyl, aroyl, substituted or unsubstituted aryl, or a substituted or unsubstituted aromatic heterocyclic group; R
3
represents lower alkyl, lower cycloalkyl, substituted or unsubstituted lower alkanoyl, substituted or unsubstituted aryl, or a substituted or unsubstituted aromatic heterocyclic group; and Q represents a hydrogen atom or
3,4
-dimethoxybenzyl).
本发明提供了[1,
2,4]三唑并[1,5-c]
嘧啶衍
生物或其药学上可接受的盐,其具有
腺苷A2A受体拮抗作用,并可用于治疗和/或预防由
腺苷A2A受体过度活化引起的疾病,所述衍
生物由式(I)表示:(其中R1代表取代或未取代的芳基或取代或未取代的芳基杂环基;R2代表
氢原子,卤素,低级烷基,低级酰基,芳基取代或未取代,或取代或未取代的芳基杂环基;R3代表低级烷基,低级
环烷基,取代或未取代的低级酰基,取代或未取代的芳基,或取代或未取代的芳基杂环基;Q代表
氢原子或3,4-二甲
氧基
苄基)。