3-Hydroxy-5-nitro-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-(Difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-6-methanol
2-(Difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-6-methanol
4-(Difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-6-acetonitrile