3-Cyano-5-nitro-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
3-Cyano-4-iodo-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
2-Cyano-6-hydroxy-4-(trifluoromethoxy)pyridine-3-carbonyl chloride
3-Cyano-4-iodo-5-(trifluoromethoxy)pyridine-2-carbonyl chloride