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