Patent ID: 8481595

Claim:
A compound of the formula: wherein m is 0, 1, 2, 3, 4, 5, 6, 7 or 8; R 1 is hydrogen or 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 phenyl, independently substituted at each of the 2-position and the 6-position by a substituent selected from the group consisting of: chloro, bromo, iodo, hydroxy, alkyl having 1 or 2 carbon atoms, perfluoromethyl; alkoxy having 1 or 2 carbon atoms, and perfluoromethoxy; or a pharmaceutically acceptable salt of the compound.