4-Amino-2-bromo-5-(difluoromethyl)pyridine-3-acetonitrile
2-(Difluoromethyl)-3,5-diiodopyridine-6-acetonitrile
5-Amino-3-bromo-2-(difluoromethyl)pyridine-4-acetonitrile
6-(Difluoromethyl)-3,4-diiodopyridine-2-acetonitrile
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