Ethyl 3-(bromomethyl)-2-(difluoromethyl)pyridine-5-carboxylate
4-(Difluoromethyl)-5-(trifluoromethyl)pyridine-2-sulfonamide
Ethyl 2-(bromomethyl)-5-(difluoromethyl)pyridine-4-carboxylate
3-(Aminomethyl)-4-(difluoromethyl)pyridine-2-carboxylic acid
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