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