Ethyl 6-bromo-3-(difluoromethyl)pyridine-2-carboxylate
Ethyl 2-bromo-3-(difluoromethyl)pyridine-6-carboxylate
Methyl 3-bromo-6-(difluoromethyl)pyridine-2-carboxylate
Methyl 5-bromo-3-(difluoromethyl)pyridine-2-carboxylate
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