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中R1、R2和R4具有声明1中指定的含义的化合物是Syk的
抑制剂,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。