Patent ID: 8268859

Claim:
A compound of Formula (I) wherein: R 1 is an aryl or heteroaryl group, each optionally independently substituted with one, two, or three substituent groups selected from C 1 -C 5 alkyl, aminocarbonyl, C 1 -C 5 alkylaminocarbonyl, C 1 -C 5 dialkylaminocarbonyl, aminosulfonyl, C 1 -C 5 alkylaminosulfonyl, C 1 -C 5 dialkylaminosulfonyl, halogen, hydroxyl, cyano, and C 1 -C 5 alkylthio wherein the sulfur atom is optionally oxidized to a sulfoxide or sulfone; R 2 is C 1 -C 5 alkylthio wherein the sulfur atom is optionally oxidized to a sulfoxide or sulfone, optionally independently substituted with one, two, or three substituent groups selected from halogen, hydroxy, oxo, cyano, alkoxyalkyl, and aminocarbonyl; X is CH; and Y is N, or a tautomer, optical isomer, co-crystal, or salt thereof.