Compounds of formula I
in free or salt form, wherein R
1
, R
2
, R
3
and R
4
have the meanings as indicated in the specification, are useful for treating conditions that are mediated by mediated by phosphatidylinositol 3-kinase.
Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
Compounds of formula I
in free or salt form, wherein R
1
, R
2
, R
3
and R
4
have the meanings as indicated in the specification, are useful for treating conditions that are mediated by phosphatidylinositol 3-kinase.
Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.