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