Methyl 3-(difluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate
6-(Difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-acetic acid
Methyl 3-(difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
2-(Difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-4-acetic acid