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