2-Cyano-6-(fluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine
3-(Bromomethyl)-6-cyano-2-hydroxy-5-(trifluoromethoxy)pyridine
2-Fluoro-3-methyl-4-(trifluoromethoxy)pyridine-6-acetonitrile
4-(Bromomethyl)-3-cyano-6-hydroxy-2-(trifluoromethoxy)pyridine