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