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