2-Cyano-5-nitro-6-(trifluoromethoxy)pyridine-3-sulfonamide
4-Chloro-2-iodo-5-(trifluoromethoxy)pyridine-3-sulfonamide
2-Cyano-5-nitro-4-(trifluoromethoxy)pyridine-3-sulfonamide
2-Cyano-6-methoxy-5-methyl-3-(trifluoromethoxy)pyridine
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