Compounds of the formula (I), in which R, X, Y, Z, R
3
and R
4
have the meanings indicated in claim
1
, are inhibitors of methionine aminopeptidase and can be employed for the treatment of tumours.
公式(I)中的化合物,其中R、X、Y、Z、R3和R4具有声明1中指示的含义,是蛋
氨酸
氨肽酶的
抑制剂,可用于肿瘤的治疗。