4-(Difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-Iodo-4-methyl-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-(Difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-5-methanol
2-Iodo-3-methyl-6-(trifluoromethoxy)pyridine-4-carboxaldehyde