4,6-Diamino-2-(difluoromethyl)pyridine-3-carboxylic acid
4-(Bromomethyl)-2-(difluoromethyl)pyridine-6-sulfonamide
2-(Chloromethyl)-4-(difluoromethyl)-3,5-diiodopyridine
5-(Bromomethyl)-3-(difluoromethyl)pyridine-2-sulfonamide
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