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