5-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Chloromethyl)-5-fluoro-3-methyl-2-(trifluoromethoxy)pyridine
2-Cyano-5-(difluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine
3-Cyano-5-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxaldehyde