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