5-Cyano-4-hydroxy-2-nitro-3-(trifluoromethoxy)pyridine
3-Cyano-2-fluoro-4-(trifluoromethoxy)pyridine-6-sulfonamide
5-Chloro-2-methoxy-4-(trifluoromethoxy)pyridine-3-sulfonamide
3-Cyano-4-hydroxy-5-nitro-2-(trifluoromethoxy)pyridine
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