4-Bromo-5-cyano-3-(difluoromethyl)-2-iodopyridine
4-Bromo-3-cyano-2-(difluoromethyl)-5-iodopyridine
5-Bromo-4-chloro-3-(difluoromethyl)pyridine-2-acetonitrile
3-Bromo-2-chloro-5-(difluoromethyl)pyridine-6-acetonitrile
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