Patent ID: 7820698

Claim:
A compound of formula (I): wherein: n=1 or 2; R 1 and R 2 are different or the same and are independently selected from the group consisting of C 1 -C 4 alkyloxy, C 3 -C 7 cycloalkyloxy, and (C 3 -C 7 )cycloalkyl-(C 1 -C 3 )alkyloxy, provided at least one of R 1 and R 2 is C 1 -C 4 alkyloxy, wherein in each of R 1 and R 2 one or more hydrogen atoms may be replaced with a halogen atom; A is a group selected from the group consisting of phenyl, furyl, thiophenyl, and benzothiophenyl, each of which may be substituted with one or more substituents independently selected from the group consisting of: OR 3 , wherein R 3 is selected from the group consisting of H; C 1 -C 6 alkyl; and C 3 -C 7 cycloalkyl; halogen; CN; HNSO 2 R 9 wherein R 9 is C 1 -C 4 alkyl; SO 2 R 10 wherein R 10 is C 1 -C 4 alkyl, OH or NR 6 R 7 wherein R 6 and R 7 are both H; and COOR 13 wherein R 13 is H, C 1 -C 4 alkyl, phenyl, or benzyl; or a pharmaceutically acceptable salt thereof.