2-(Bromomethyl)-3-(difluoromethyl)pyridine-6-sulfonamide
3-(Chloromethyl)-5-(difluoromethyl)-2,4-diiodopyridine
4-(Bromomethyl)-5-(difluoromethyl)pyridine-2-sulfonyl chloride
5-(Chloromethyl)-6-(difluoromethyl)-2,3-diiodopyridine
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