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