5-Bromo-3-(difluoromethyl)-4-iodopyridine-2-carboxylic acid
3-Bromo-5-(difluoromethyl)-6-fluoropyridine-2-sulfonyl chloride
5-Bromo-4-(difluoromethyl)-2-iodopyridine-3-carboxylic acid
3-Bromo-5-(difluoromethyl)-4-fluoropyridine-2-sulfonyl chloride
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