Methyl 2,6-dibromo-4-(difluoromethyl)pyridine-3-carboxylate
Methyl 3,6-dibromo-2-(difluoromethyl)pyridine-5-carboxylate
Methyl 2,5-dibromo-4-(difluoromethyl)pyridine-3-carboxylate
Ethyl 4-(difluoromethyl)-2-iodopyridine-5-acetate
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