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