5-Chloro-3-nitro-2-(trifluoromethoxy)pyridine-4-sulfonamide
2-(Bromomethyl)-4-cyano-3-nitro-5-(trifluoromethoxy)pyridine
5-Chloro-4-nitro-2-(trifluoromethoxy)pyridine-3-sulfonamide
2-Cyano-3-fluoro-4-hydroxy-5-(trifluoromethoxy)pyridine
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