2-Bromo-5-cyano-4-(difluoromethyl)pyridine-3-acetonitrile
2-Bromo-5-cyano-3-(difluoromethyl)pyridine-4-acetonitrile
4-Bromo-3-(difluoromethyl)-5-fluoropyridine-2-carbonyl chloride
4-Bromo-3-(difluoromethyl)-2-fluoropyridine-5-carbonyl chloride
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