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