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