5-Hydroxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxaldehyde
Methyl 3-hydroxy-4-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-hydroxy-4-nitro-2-(trifluoromethoxy)pyridine-6-carboxylate
3-Hydroxy-5-nitro-2-(trifluoromethoxy)pyridine-4-acetic acid