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