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