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