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