Patent ID: 7846953

Claim:
A compound of Formula (I) wherein R 1 is halo, optionally substituted C 1-4 alkyl, optionally substituted C 1-4 alkoxy, or hydroxyl; R 2 is selected from halo substituted C 1-3 alkyl, cyano, halo, —C(O)NH 2 , and —C(O)O—C 1-4 alkyl, alternatively R 2 is linked together to R 3 to form an aryl fused to the phenyl ring to which R 2 and R 3 are shown attached; R 3 is H, or alternatively R 3 is linked together to R 2 to form an aryl fused to the phenyl ring to which R 3 and R 2 are shown attached; R 4 is halo, cyano, —C≡CH, halo substituted C 1-3 alkyl, —C(O)O—C 1-4 alkyl, —C(O)NH 2 , or —S(O 2 )—C 1-4 alkyl; and X is S or O; or an optical isomer, enantiomer, diastereomer, cis-trans isomer, racemate, prodrug or pharmaceutically acceptable salt thereof.