Compounds of the formula (I), in which R1, R2, R3, R4, R4′ have the meanings indicated in claim 1, are inhibitors of tyrosine kinases, in particular Met kinase, and can be employed, inter alia, for the treatment of tumors.
公式(I)的化合物,其中R1,R2,R3,R4,R4'具有权利要求1中所示的含义,是
酪氨酸激酶的
抑制剂,特别是Met激酶,并可用于治疗肿瘤等疾病。