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