Patent ID: 8318762

Claim:
A compound of Formula (I) wherein R 1 is (C 1 -C 4 )alkyl, (C 3 -C 6 )cycloalkyl, tetrahydrofuranyl, benzyl, pyridyl, or phenyl optionally substituted with 1 to 2 substituents independently selected from cyano and methoxy; R 2 is hydrogen, methyl or ethyl; R 3 is a chemical moiety selected from the group consisting of where X is O, S, or N—R 3c ; Y is CH 2 or O; R 3a is hydrogen or methyl; R 3b is hydrogen, methyl, ethyl, halo, methoxy, or ethoxy; R 3c is hydrogen, methyl, ethyl, or 3- to 6-membered cycloalkyl; R 3d is hydrogen, methyl, or hydroxyl; R 3e is hydrogen, methyl, ethyl, halo, or amino; R 3f is hydrogen, methyl, or methoxy; R 3g is hydrogen, or methoxy; R 3h is hydrogen, methyl, methoxy, or halo; R 3i is hydrogen, methyl, or methoxy; or R 3j is hydrogen, or methoxy; or a pharmaceutically acceptable salt thereof.