Patent ID: 8796278

Claim:
A compound of formula (I): wherein: m, p=1; n, s=1; X is O, NR 3 or CR 4 R 5 ; Q 1 to Q 4 are independently CH or N provided that one of Q 1 to Q 4 is N; R 1 is hydrogen, (C 1 -C 4 )alkyl, CF 3 or (C 1 -C 4 )alkoxy; R 2 is hydrogen, halogen, (C 1 -C 4 )alkyl, (C 1 -C 4 )alkoxy or CF 3 ; R 3 is hydrogen or (C 1 -C 6 )alkyloxycarbonyl; R 4 is hydrogen; and R 5 is hydrogen or OH; or a salt thereof or an enantiomer or a diastereomer thereof.