Patent ID: 7615648

Claim:
A compound of formula (I) wherein A is R1 is ethyl, propyl, isopropyl, isobutyl, 2,2-dimethylpropyl, cyclopentyl, cyclohexyl, cyclopropylmethyl, tetrahydrofuran-3-yl, tetrahydropyran-4-yl or 8-oxabicyclo[3.2.1]oct-6endo-yl; R7 is independently at each occurrence selected from H and C 1 -C 4 alkyl; y is 1, 2 or 3; Ar 1 is wherein R2 is H, halogen, C 1 -C 4 alkyl (optionally substituted with from 1 to 3 halogen atoms), —O-(C 1 -C 4 alkyl) (optionally substituted with from 1 to 3 halogen atoms) or phenyl; R3 is H, halogen or C 1 -C 4 alkyl (optionally substituted with from 1 to 3 halogen atoms); R4 is H, halogen or C 1 -C 4 alkyl (optionally substituted with from 1 to 3 halogen atoms); R5 is H, halogen or C 1 -C 4 alkyl (optionally substituted with from 1 to 3 halogen atoms); and R6 is H; or a pharmaceutically acceptable salt thereof.