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