5-Bromo-4-(chloromethyl)-2-(difluoromethyl)pyridine
3-Bromo-2-(chloromethyl)-5-(difluoromethyl)pyridine
6-Bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine
2-Bromo-6-(chloromethyl)-3-(difluoromethyl)pyridine
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