Methyl 3-bromo-6-(difluoromethyl)-2-nitropyridine-5-acetate
Methyl 5-bromo-2-(difluoromethyl)-4-nitropyridine-3-acetate
3-Bromo-6-(chloromethyl)-4-(difluoromethyl)-2-iodopyridine
Methyl 3-bromo-4-(difluoromethyl)-6-nitropyridine-2-acetate
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