3-Cyano-2-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
5-(Chloromethyl)-4-fluoro-3-methyl-2-(trifluoromethoxy)pyridine
4-Cyano-3-(fluoromethyl)-2-methyl-5-(trifluoromethoxy)pyridine
3-Cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxaldehyde