Compounds of the formula I
in which R
1
, R
2
and R
4
have the meanings indicated in Claim
1,
are inhibitors of Syk, and can be employed, inter alia, for the treatment of cancer, rheumatoid arthritis and/or systemic lupus
公式I的化合物,其中R1、R2和R4的含义如权利要求1所示,是Syk的
抑制剂,并可用于治疗癌症、类风湿性关节炎和/或系统性红斑狼疮等疾病。