6-Cyano-3-hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonamide
6-Cyano-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-(Bromomethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-4-acetic acid
2-Cyano-5-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxaldehyde