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