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