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