4-Bromo-2-cyano-3-(trifluoromethoxy)pyridine-6-acetonitrile
5-Bromo-3-chloro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Bromo-4-chloro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Bromo-4-cyano-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine