Patent ID: 8389508

Claim:
A compound of formula (I) or a salt thereof: wherein X is CH; R 1 is C 1-6 alkoxy or C 1-6 alkyl; R 2 is cyano, CF 3 , halogen C 1-6 alkoxy or CH 2 OCH 3 ; R 3 is halogen, C 1-6 alkoxy or C 1-6 alkyl; R 4 is hydrogen, halogen, C 1-3 alkyl, or C 1-3 alkoxyl; n=0, 1, 2 or 3; m=0, 1, 2 or 3; A is a 5-membered heteroaryl ring in any orientation selected from: B is a 4 to 7-membered heterocyclic ring in any orientation selected from: and R 5 is one or two substituents independently selected from hydrogen, halogen, C 1-3 alkyl, C 1-3 alkoxyl and hydroxyl.