2-Chloro-3-cyano-6-(difluoromethyl)pyridine-5-sulfonamide
2-Chloro-3-cyano-5-(difluoromethyl)pyridine-6-sulfonamide
2-Chloro-3-cyano-4-(difluoromethyl)pyridine-6-sulfonamide
4-Chloro-6-cyano-2-(difluoromethyl)pyridine-3-sulfonyl chloride
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