Compounds of (I)
or stereoisomers or pharmaceutically acceptable salts thereof, where W, R
1
, R
2
, R
3
and R
4
have the meanings as indicated in the specification, are useful for treating conditions mediated by activation of the adenosine A
2A
receptor, especially inflammatory or obstructive airways diseases. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
化合物(I)或其立体异构体或药学上可接受的盐,其中W、R1、R2、R3和R4的含义如规范中所示,可用于治疗通过激活
腺苷A2A受体介导的炎症或阻塞性呼吸道疾病。本文还描述了含有该化合物的药物组合物和制备该化合物的方法。