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