Patent ID: 8252937

Claim:
A compound having the formula (I) or a stereochemically isomeric form thereof, wherein R 1 is C 1-6 alkyl; or C 1-3 alkyl substituted with C 3-7 cycloalkyl, phenyl, or phenyl substituted with halo, trifluoromethyl or trifluoromethoxy; R 2 is halo, trifluoromethyl, C 1-3 alkyl or cyclopropyl; R 3 is hydrogen or halo; X is O, S, SO, SO 2 , or CF 2 ; and Ar is unsubstituted phenyl; unsubstituted pyridinyl; or phenyl or pyridinyl substituted with one or two substituents selected from the group consisting of halo, C 1-3 alkyl, C 1-3 alkoxy, trifluoromethyl, hydroxyC 1-3 alkyl and (CH 2 ) n —CO 2 H, wherein n=0, 1, or 2; or a pharmaceutically acceptable salt thereof, provided that when R 3 is 2′-fluoro then Ar is not 3-pyridinyl substituted with one or two C 1-3 alkyl substituents.