Compounds of formula (I) or pharmaceutical acceptable salts are provided, wherein X
1
˜X
5
, R
1
˜R
3
, A, B, Z and n are defined in the description. And compositions containing said compounds, and the uses for inhibitors of kinases such as ALK, and the uses for treating cancer thereof are provided.
Compounds of formula (I) or pharmaceutical acceptable salts are provided, wherein X1˜X5, R1˜R3, A, B, Z and n are defined in the description. And compositions containing said compounds, and the uses for inhibitors of kinases such as ALK, and the uses for treating cancer thereof are provided.