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