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