2,3-Dichloro-5-(difluoromethyl)pyridine-4-sulfonamide
3,5-Diamino-4-(difluoromethyl)pyridine-2-sulfonamide
4,5-Diamino-3-(difluoromethyl)pyridine-2-sulfonamide
3,5-Dichloro-4-(difluoromethyl)pyridine-2-sulfonyl chloride
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