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