4-Chloro-2-fluoro-3-(trifluoromethoxy)pyridine-5-carbonyl chloride
3-Chloro-5-fluoro-4-(trifluoromethoxy)pyridine-2-carbonyl chloride
5-Chloro-3-cyano-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
3-Chloro-5-fluoro-2-(trifluoromethoxy)pyridine-4-carbonyl chloride