3-Cyano-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxaldehyde
3-Fluoro-5-methoxy-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
3-Cyano-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
5-Cyano-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxaldehyde