3-Methoxy-5-nitro-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-Methoxy-4-nitro-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
6-Methoxy-4-nitro-3-(trifluoromethoxy)pyridine-2-acetic acid
2-Methoxy-5-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde