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