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