4-Bromo-6-(chloromethyl)-2-(difluoromethyl)-3-fluoropyridine
3-Bromo-4-(chloromethyl)-5-(difluoromethyl)-2-fluoropyridine
6-Bromo-4-(chloromethyl)-2-(difluoromethyl)-3-fluoropyridine
2-Bromo-5-(difluoromethyl)-3-iodopyridine-4-acetonitrile
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