Compounds of formula I
in free or salt form, wherein R1, R2 and R3 have the meanings as indicated in the specification, are useful for treating conditions mediated by activation of the adenosine A2A receptor, especially inflammatory or obstructive airways diseases. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
式 I 的化合物
其中 R1、R2 和 R3 的含义如说明书所示,可用于治疗由
腺苷 A2A 受体激活介导的疾病,特别是炎症性或阻塞性气道疾病。还描述了含有这些化合物的药物组合物和制备这些化合物的工艺。