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