3-Fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-6-carbonyl chloride
3-Cyano-2-nitro-6-(trifluoromethoxy)pyridine-5-carbonyl chloride
3-Cyano-2-nitro-5-(trifluoromethoxy)pyridine-6-carbonyl chloride
3-Fluoro-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carbonyl chloride