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