2,3-Diamino-4-(difluoromethyl)pyridine-5-sulfonamide
2,3-Dibromo-6-(difluoromethyl)pyridine-4-sulfonyl chloride
2,3-Dibromo-4-(difluoromethyl)pyridine-6-sulfonyl chloride
3-Cyano-2,6-dibromo-5-(difluoromethyl)pyridine
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