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