Methyl 4-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetate
4-(Difluoromethyl)-3-fluoro-5-(trifluoromethoxy)pyridine-2-methanol
4-(Difluoromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-3-methanol
4-(Difluoromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-3-methanol