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