5-Cyano-4-(difluoromethyl)pyridine-2-acetonitrile
3-Cyano-2-(difluoromethyl)pyridine-6-acetonitrile
6-Cyano-2-(difluoromethyl)pyridine-3-acetonitrile
6-Cyano-2-(difluoromethyl)-3-(trifluoromethyl)pyridine
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