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