2-Cyano-3,5-difluoro-4-(difluoromethyl)pyridine
5-Cyano-2,3-difluoro-6-(difluoromethyl)pyridine
4,5-Difluoro-3-(difluoromethyl)pyridine-2-acetonitrile
3-Chloro-2,4-difluoro-5-(difluoromethyl)pyridine
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