6-Cyano-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Fluoro-5-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
2-Cyano-5-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
Methyl 2-cyano-6-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate