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