Compounds of the formula (I), in which X, R
1
and R
2
have the meanings indicated in claim
1
, are PI3K inhibitors and can be employed, inter alia, for the treatment of autoimmune diseases, inflammation, cardiovascular diseases, neurodegenerative diseases and tumours.
式(I)中的化合物,其中X、R1和R2具有权利要求1中指示的含义,是
PI3K
抑制剂,可用于治疗自身免疫疾病、炎症、心血管疾病、神经退行性疾病和肿瘤等疾病。