4-Bromo-5-cyano-2-(difluoromethyl)-3-nitropyridine
2-Bromo-3-cyano-6-(difluoromethyl)pyridine-4-carbonyl chloride
4-Bromo-3-cyano-2-(difluoromethyl)-6-nitropyridine
2-Bromo-3-cyano-5-(difluoromethyl)pyridine-4-carbonyl chloride
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