Patent ID: 7538141

Claim:
A compound of formula (1), or a pharmaceutically acceptable salt thereof, wherein the (CH 2 ) n —C(═O)Q 1 group is in the meta or para position; R 1 and R 2 are independently H or C 1 -C 4 alkyl; n is 0, 1 or 2; Q 1 is *—NR 8 -Q 2 -A; Q 2 is a single bond or C 1 -C 4 alkylene optionally substituted with OH; R 8 is H or C 1 -C 4 alkyl; A is R 3 , R 4 , R 5 , R 6 and R 7 are independently H, C 1 -C 4 alkyl, OR 9 , SR 9 , SOR 9 , SO 2 R 9 , halo, CN, CF 3 , OCF 3 , SO 2 NR 9 R 10 , COOR 9 , CONR 9 R 10 , NR 9 R 10 , NHCOR 10 or phenyl optionally substituted with OH; R 9 and R 10 are independently H or C 1 -C 4 alkyl; and * represents the attachment point to the carbonyl group.