5-(Difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
2,4-Dibromo-6-(trifluoromethoxy)pyridine-3-carbonyl chloride
5-(Difluoromethyl)-3-iodopyridine-2-sulfonamide
3-(Difluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxaldehyde