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