Patent ID: 8168800

Claim:
A compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein in Formula I: L is C 1-6 alkylene; X is phenyl substituted with fluorine, bromine or iodine; Ar is phenyl substituted at the 4-position with one substituent selected from the group consisting of perfluoro(C 1 -C 4 )alkoxy and —OR c ; wherein R c is C 1-4 alkyl; R 1 is a member selected from the group consisting of hydrogen, C 1-6 alkyl and C 1-6 haloalkyl; R 2 is a member selected from the group consisting of hydrogen, halogen, C 1-6 alkoxy, C 1-6 alkylamino, C 1-6 dialkylamino, C 1-6 alkyl and C 1-6 haloalkyl; R 3a and R 3b are each a member independently selected from the group consisting of hydrogen, C 1-6 alkyl, C 1-6 haloalkyl, and C 1-6 alkoxy, and wherein R 3a and R 3b and the nitrogen atom to which each is attached are optionally combined to form a 5- to 6-membered ring; and the subscript m is 1.