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