6-Cyano-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonamide
2-Cyano-4-nitro-5-(trifluoromethoxy)pyridine-3-sulfonamide
2-Cyano-3-nitro-6-(trifluoromethoxy)pyridine-5-sulfonamide
5-(Aminomethyl)-4-chloro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
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