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