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