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