2-Fluoro-5-hydroxy-6-(trifluoromethoxy)pyridine-3-carbonyl chloride
2-Cyano-6-nitro-3-(trifluoromethoxy)pyridine-5-carbonyl chloride
2-Fluoro-5-hydroxy-3-(trifluoromethoxy)pyridine-6-carbonyl chloride
2-Cyano-5-nitro-6-(trifluoromethoxy)pyridine-3-carbonyl chloride