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