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