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