Patent ID: 8592459

Claim:
A compound of formula (III): wherein, each R 1 is independently selected from C 1-6 alkyl, C 1-6 alkoxy, hydroxy, halo, (C 1-6 alkyl)sulfanyl, (C 1-6 alkyl)sulfonyl, cycloalkyl, and phenyl; c is 1 or 2; when c is 1, R 4 is trifluoromethyl; when c is 2, one of R 4 is trifluoromethyl, and the other R 4 is selected from hydroxy, C 1-6 alkyl, C 1-6 alkoxy, halo, carboxyl, (C 1-6 alkoxy)carbonyl, aminocarbonyl, carbonitrile, cycloalkyl, heterocycloalkylcarbonyl, and phenyl; wherein R 1 and R 4 may be optionally substituted with one or more substituents independently selected from hydroxy, halo, C 1-6 alkyl, and C 1-6 alkoxy; and a is 1, 2, 3, 4, or 5; or a tautomer, or stereoisomer thereof or a pharmaceutically acceptable salt of the compound, tautomer, or stereoisomer.