4-Cyano-6-(difluoromethyl)-3-iodo-2-(trifluoromethyl)pyridine
2-Cyano-6-(difluoromethyl)-3-nitropyridine-5-sulfonamide
2-Cyano-3-(difluoromethyl)-5-iodo-6-(trifluoromethyl)pyridine
2-Cyano-3-(difluoromethyl)-6-nitropyridine-4-sulfonamide
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