3-Bromo-4-(difluoromethyl)-6-nitropyridine-2-sulfonyl chloride
3-Bromo-6-(chloromethyl)-4-(difluoromethyl)pyridine-2-acetic acid
3-Bromo-4-(difluoromethyl)-5-nitropyridine-2-sulfonyl chloride
3-Bromo-4-(difluoromethyl)-2-nitropyridine-5-sulfonyl chloride