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