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