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