| abstract |
Compounds of formula (I)n nor stereoisomers or pharmaceutically acceptable salts thereof, nwherein W, R 1 , R 2 and R 3 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. |