2-Cyano-6-methoxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-Cyano-3-methoxy-2-(trifluoromethoxy)pyridine-5-acetonitrile
2-Cyano-5-methoxy-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-Cyano-2-methoxy-3-(trifluoromethoxy)pyridine-5-acetonitrile