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