Ethyl 6-(bromomethyl)-3-(difluoromethyl)pyridine-2-acetate
4-(Aminomethyl)-2-(difluoromethyl)pyridine-6-sulfonamide
Ethyl 2,4-diamino-3-(difluoromethyl)pyridine-6-acetate
5-(Aminomethyl)-4-(difluoromethyl)pyridine-2-sulfonamide
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