Patent ID: 8344029

Claim:
A compound having General Formula (I′) or a pharmacologically acceptable salt thereof: wherein, R 5 is selected from a propoxy, isobutyloxy, (cyclopropyl)methoxy, 2-(cyclopropyl)ethoxy, 3-(cyclopropyl)propoxy, (cyclobutyl)methoxy, (cyclopentyl)methoxy, 2-(cyclopentyl)ethoxy, 2-(phenyl)ethoxy, 2-(4-methoxyphenyl)ethoxy, 2-(4-chlorophenyl)ethoxy, (2,2-difluorocyclopropan-1-yl)methoxy, 2,2-difluoroethoxy, 2,2,2-trifluoroethoxy, 3,3,3-trifluoropropoxy, 4,4,4-trifluorobutoxy, 4-(trifluoromethyl)phenoxy, 4-methoxyphenoxy, 4-chlorophenoxy, or 4-fluorophenoxy group; R 6 is selected from a C 1 -C 6 haloalkyl group, a C 1 -C 6 haloalkoxy group, a C 3 -C 6 cycloalkyl group, or a C 3 -C 6 cycloalkyloxy group; and R 7 represents a C 1 -C 6 hydroxyalkyl group optionally protected by a hydroxyl protecting group.