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