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