The present invention provides [1,2,4]triazolo[1,5-c]pyrimidine derivatives or pharmaceutically acceptable salts thereof which have adenosine A2A receptor antagonism and are useful for treating and/or preventing a disease induced by hyperactivity of an adenosine A2A receptor, the derivatives being represented by formula (I):
(wherein R1 represents substituted or unsubstituted aryl or a substituted or unsubstituted aromatic heterocyclic group; R2 represents a hydrogen atom, halogen, lower alkyl, lower alkanoyl, aroyl, substituted or unsubstituted aryl, or a substituted or unsubstituted aromatic heterocyclic group; R3 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,该衍
生物具有
腺苷A2A受体拮抗作用,可用于治疗和/或预防由
腺苷A2A受体活性过高引起的疾病,其衍
生物由以下通式(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香杂环基团;R2代表氢原子、卤素、低级烷基、低级烷酰基、芳酰基、取代或未取代的芳基或取代或未取代的芳香杂环基团;R3代表低级烷基、低级环烷基、取代或未取代的低级烷酰基、取代或未取代的芳基或取代或未取代的芳香杂环基团;Q代表氢原子或3,4-二甲氧基苄基)。