Methyl 6-bromo-2-(chloromethyl)-4-(difluoromethyl)pyridine-3-acetate
Ethyl 4-bromo-3-(difluoromethyl)-6-nitropyridine-2-acetate
Ethyl 4-bromo-3-(difluoromethyl)-5-nitropyridine-2-acetate
Ethyl 4-bromo-2-(difluoromethyl)-6-nitropyridine-3-acetate
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