Ethyl 6-bromo-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
5-Bromo-2-(fluoromethyl)-3-iodo-6-(trifluoromethoxy)pyridine
4-Bromo-3-(chloromethyl)-2-cyano-6-(trifluoromethoxy)pyridine
4-Bromo-2-(chloromethyl)-6-cyano-3-(trifluoromethoxy)pyridine