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