Compounds of the formula (I), in which R, R
1
, R
2
, X, X
1
, Y, Y
1
, Q, E, n1 and n2 have the meanings indicated in claim
1
, are autotaxin inhibitors and can be employed for the treatment of tumours.
化合物的结构式(I),其中R,R1,R2,X,X1,Y,Y1,Q,E,n1和n2的含义如权利要求书中所示,是自体
磷脂酶
抑制剂,可用于肿瘤的治疗。