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