3-Bromo-2-hydroxy-4-(trifluoromethoxy)pyridine-5-carbonyl chloride
5-Bromo-2-fluoro-3-(trifluoromethoxy)pyridine-6-carbonyl chloride
2-Bromo-5-nitro-6-(trifluoromethoxy)pyridine-3-carbonyl chloride
5-Bromo-3-fluoro-4-(trifluoromethoxy)pyridine-2-carbonyl chloride