2-Bromo-5-chloro-4-(difluoromethyl)pyridine-3-sulfonamide
3-Bromo-6-chloro-2-(difluoromethyl)pyridine-4-sulfonyl chloride
4-Bromo-5-chloro-2-(difluoromethyl)pyridine-3-sulfonyl chloride
5-Bromo-3-chloro-2-(difluoromethyl)pyridine-4-sulfonyl chloride
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