6-Chloro-3-cyano-2-(difluoromethyl)-4-iodopyridine
3-Bromo-5-(chloromethyl)-2-(difluoromethyl)pyridine-4-acetonitrile
5-Chloro-2-cyano-3-(difluoromethyl)-6-methoxypyridine
3-Bromo-4-(chloromethyl)-2-(difluoromethyl)pyridine-5-acetonitrile
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