Patent ID: 8389509

Claim:
A compound of Formula (I): or a pharmaceutically acceptable salt thereof, wherein: n is zero or an integer selected from 1 through 4; R 1 is cycloalkyl, aryl, heteroaryl, or heterocyclyl, each optionally substituted with one to five substituents independently selected from C 1 to C 6 alkyl, C 1 to C 4 haloalkyl, benzyl, —OR 4 , and halogen; each R 2 is independently selected from hydrogen, C 1 to C 6 alkyl, C 1 to C 4 haloalkyl, —OR 4 , and halogen; R 3 is hydrogen, alkyl, haloalkyl, halogen, —NR a R b , cycloalkyl, aryl, heteroaryl, or heterocyclyl, wherein said cycloalkyl, aryl, heteroaryl, and heterocyclyl each may optionally be substituted with one to five substituents independently selected from C 1 to C 6 alkyl, C 1 to C 4 haloalkyl, —OR 4 , and halogen; each R 4 is independently selected from C 1 to C 6 alkyl, C 1 to C 4 haloalkyl, and benzyl; and R a and R b are each independently hydrogen, alkyl, and/or benzyl.