2-(Bromomethyl)-4-(difluoromethyl)pyridine-5-sulfonamide
5-(Bromomethyl)-2-(difluoromethyl)pyridine-4-sulfonyl chloride
3-(Bromomethyl)-5-(difluoromethyl)pyridine-4-sulfonyl chloride
4-Cyano-2,3-dibromo-5-(difluoromethyl)pyridine
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