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