4-Hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
4-(Difluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Iodo-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-Chloro-3-methoxy-2-(trifluoromethoxy)pyridine-5-carboxamide