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