2-Bromo-3-nitro-4-(trifluoromethoxy)pyridine-6-carbonyl chloride
3-Bromo-5-nitro-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
3-Bromo-6-methyl-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
3-Bromo-5-nitro-4-(trifluoromethoxy)pyridine-2-carbonyl chloride