Ethyl 3-(bromomethyl)-2-(difluoromethyl)pyridine-4-acetate
Ethyl 2-(bromomethyl)-6-(difluoromethyl)pyridine-3-acetate
Ethyl 2-(bromomethyl)-5-(difluoromethyl)pyridine-3-acetate
Methyl 4-(difluoromethyl)-2-nitropyridine-6-carboxylate
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