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