3-Bromo-4-(difluoromethyl)-2-nitropyridine-5-carbonyl chloride
3-Bromo-2-(difluoromethyl)-6-nitropyridine-4-carbonyl chloride
3-Bromo-2-(difluoromethyl)-5-nitropyridine-4-carbonyl chloride
3-Bromo-4-(difluoromethyl)-2-nitro-6-(trifluoromethyl)pyridine