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