3-(Chloromethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetonitrile
5-Bromo-2-(difluoromethyl)pyridine-3-acetonitrile
4-Bromo-3-(difluoromethyl)pyridine-2-acetonitrile
4-Bromo-2-(difluoromethyl)pyridine-3-acetonitrile
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