6-(Difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-2-methanol
2-(Difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-methanol
2-(Difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-5-carboxylic acid
2-(Difluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxylic acid