5-Cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
Ethyl 3-(chloromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-4-carboxylate
3-Cyano-2-nitro-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
4-Cyano-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxaldehyde