3-Bromo-6-(chloromethyl)-2-(difluoromethyl)pyridine-4-acetic acid
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