3-Bromo-4-cyano-2-(difluoromethyl)-6-nitropyridine
3-Bromo-2-cyano-6-(difluoromethyl)-5-nitropyridine
Ethyl 4-bromo-2-cyano-5-(difluoromethyl)pyridine-3-acetate
3-Bromo-2-cyano-5-(difluoromethyl)-6-nitropyridine
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