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