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