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