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