Patent ID: 8304577

Claim:
A compound of Formula (I) or a pharmaceutically acceptable salt thereof, wherein A is phenyl; R 1 is C 4 -C 6 alkoxy; R 2 is selected from hydrogen, C 1 -C 3 alkyl; and halo; R 3 is hydroxy-C 1 -C 3 alkyl; R 4 is selected from C 1 -C 3 alkyl and hydroxy-C 1 -C 3 alkyl; R 4′ is selected from hydrogen and C 1 -C 3 alkyl; or R 4 and R 4′ , together with the carbon atom to which they are attached, form a C 3 -C 6 cycloalkyl ring; and R 5 is selected from hydrogen, C 1 -C 3 alkyl, and halo.