2-Fluoro-4-(fluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine
4-Hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
2-Fluoro-3-(fluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine
5-Hydroxy-3-methoxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde