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