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