2-Bromo-3-(difluoromethyl)-4-iodopyridine-5-sulfonyl chloride
2-Bromo-6-(chloromethyl)-3-(difluoromethyl)-5-iodopyridine
2-Bromo-5-(chloromethyl)-6-(difluoromethyl)-3-iodopyridine
3-Bromo-6-(difluoromethyl)-2-iodopyridine-5-carbonyl chloride
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