4-Cyano-3-nitro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Cyano-4-nitro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Cyano-6-nitro-2-(trifluoromethoxy)pyridine-4-acetonitrile
3-Cyano-6-nitro-2-(trifluoromethoxy)pyridine-4-sulfonamide
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