3-Bromo-2-hydroxy-6-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-Bromo-4-hydroxy-6-(trifluoromethoxy)pyridine-3-carbonyl chloride
2-Bromo-3-hydroxy-6-(trifluoromethoxy)pyridine-5-carbonyl chloride
4-Bromo-2-fluoro-3-(trifluoromethoxy)pyridine-6-carbonyl chloride