Methyl 2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine-4-carboxylate
2-(Bromomethyl)-3-fluoro-6-nitro-5-(trifluoromethoxy)pyridine
2-Hydroxy-3-methoxy-5-(trifluoromethoxy)pyridine-6-methanol