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