Compounds of the formula I
in which R1, R2 and R4 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.
具有式I的化合物,在其中R1,R2和R4具有权利要求1中所示的含义,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。