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