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