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