2-Bromo-3,5-difluoro-6-(difluoromethyl)pyridine
2-Bromo-4,5-difluoro-3-(difluoromethyl)pyridine
5-Bromo-3,4-difluoro-2-(difluoromethyl)pyridine
4,5-Dibromo-3-(difluoromethyl)-2-fluoropyridine
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