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