3-Hydroxy-2-nitro-6-(trifluoromethoxy)pyridine-5-carboxaldehyde
Ethyl 2-hydroxy-6-methoxy-5-(trifluoromethoxy)pyridine-3-carboxylate
3-Hydroxy-2-nitro-5-(trifluoromethoxy)pyridine-4-carboxaldehyde
Ethyl 2-hydroxy-6-methoxy-3-(trifluoromethoxy)pyridine-5-carboxylate