Patent ID: 7964728

Claim:
A compound of formula (I): or a tautomer, stereoisomer, or N-oxide thereof, or a pharmacologically acceptable salt of any of the foregoing, wherein X is N, and Y and Z are C; m is 0, and n is chosen from 0 and 1; R 2 is chosen from a piperidinyl group, a pyrrolidinyl group, a tetrahydropyridinyl group, a morpholinyl group, a azepanyl group, a 1-aza-bicyclo[2.2.2]octanyl group and a 1-aza-bicyclo[2.2.2]-oct-2-enyl group, which group is either unsubstituted or substituted with at least one substituent chosen from a halogen atom, a (C 1-3 )alkyl group, a phenyl group and a benzyl group; R 3 is hydrogen; and R 4 , R 5 and R 6 , which are the same or different, are chosen from a hydrogen atom, a halogen atom, a (C 1-3 )alkyl group, a (C 2-3 )alkynyl group, a CF 3 group, a NH(C 1-3 )alkyl group, a hydroxyl group and a (C 1-3 )alkyloxy group with the proviso that when X is N, Y and Z are C, m is 0, n is 1, R 3 , R 4 , R 5 and R 6 are H, R 2 is not pyridin-4-yl.