Patent ID: 7915429

Claim:
A compound of the formula: wherein n is 1 or 2; m is 0, 1, 2, 3 or 4; q is 0 or 1; t is 0 or 1; R 1 is alkyl having from 1 to 3 carbon atoms; R 2 is hydrogen, halo, alkyl having from 1 to 3 carbon atoms, or alkoxy having from 1 to 3 carbon atoms; A is 2,6-dimethylphenyl; or a 5 or 6 membered heteroaromatic ring having 1 or 2 ring heteroatoms selected from N, S and O and the heteroaromatic ring is covalently bound to the remainder of the compound of formula I by a ring carbon; or a pharmaceutically acceptable salt of the compound.