Patent ID: 8598173

Claim:
A method for treating tumors comprising administering a pharmaceutical composition comprising a pharmaceutically acceptable vehicle and a compound of the formula (1), or pharmaceutically acceptable salts thereof, wherein X and Y are independently N or C—R 7 ; for the combination of variables R 1 and R 2 : R 1 is H, C 1 -C 3 alkoxy, C 1 -C 3 alkyl or halogen and R 2 is F; or R 1 is F and R 2 is H, C 1 -C 3 alkoxy, C 1 -C 3 alkyl or halogen; R 3 is C 1 -C 3 alkyl; and R 4 , R 5 , R 6 and R 7 are independently H, C 1 -C 6 alkoxy, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkylcarbonyl, cyano, nitro or halogen.