Ethyl 4-cyano-5-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate
3-Cyano-6-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxaldehyde
Methyl 5-cyano-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxylate
5-Cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxaldehyde