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