Methyl 3-cyano-2-hydroxy-5-(trifluoromethoxy)pyridine-6-acetate
Methyl 3-cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-5-acetate
4-Cyano-6-hydroxy-2-(trifluoromethoxy)pyridine-3-acetonitrile
Ethyl 3-(bromomethyl)-2-fluoro-4-(trifluoromethoxy)pyridine-5-carboxylate