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