Compounds of formula (I) or an N-oxide, a salt, a tautomer or a stereoisomer of said compound, or a salt of said N-oxide, tautomer or stereoisomer, wherein ring B and the pyrimidine to which it is fused, R4, R5, R6, R7, m and n have the meanings as given in the description and the claims, which are effective inhibitors of the Pi3K/Akt pathway, processes for their production and their use as pharmaceuticals.
