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