Patent ID: 8133908

Claim:
A compound of formula (I) where: Het is a heteroaryl group selected from the group consisting of pyridinyl, pyrimidinyl, pyridazinyl or pyrazinyl, said heteroaryl group being optionally substituted with 1, 2 or 3 substituents independently selected from the group consisting of: C 1-4 alkyl, halo, C 1-4 alkoxy, haloC 1-4 alkyl, haloC 1-4 alkoxy and cyano; R 1 is C 1-4 alkyl, halo, C 1-4 alkoxy, haloC 1-4 alkyl, haloC 1- 4 alkoxy, cyano, C 1-4 alkylSO 2 , C 3-8 cycloalkylSO 2 , C 3-8 cycloalkylCH 2 SO 2 , phenyl or a 5 or 6 membered heterocyclyl group containing 1, 2 or 3 atoms selected from N, O or S, which phenyl or heterocyclyl group is optionally substituted with C 1-4 alkyl, halo, C 1-4 alkoxy, haloC 1-4 alkyl, haloC 1-4 alkoxy or cyano; R 2 is C 1-4 alkyl, halo, C 1-4 alkoxy, haloC 1-4 alkyl, haloC 1-4 alkoxy, cyano, phenyl or a 5 or 6 membered heterocyclyl group containing 1, 2 or 3 atoms selected from N, O or S, which phenyl or heterocyclyl group is optionally substituted with C 1-4 alkyl, halo, C 1-4 alkoxy, haloC 1-4 alkyl, haloC 1-4 alkoxy or cyano; R 3 is C 1-4 alkyl, halo, C 1-4 alkoxy, haloC 1-4 alkyl, haloC 1-4 alkoxy or cyano; m is 0 or 1; and n is 0 or 1; or a pharmaceutically acceptable salt thereof.