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