Compounds of the formula (I), in which Y, R
1
, R
2
, R
3
and R
3′
have the meanings indicated in claim
1
, are inhibitors of tyrosine kinases, in particular of Met kinase, and can be employed, inter alia, for the treatment of tumours.
公式(I)中的化合物,其中Y、R1、R2、R3和R3'具有权利要求1中指出的含义,是
酪氨酸激酶的
抑制剂,特别是Met激酶的
抑制剂,并且可以用于治疗肿瘤等。