4-Hydroxy-3-nitro-6-(trifluoromethoxy)pyridine-2-acetic acid
2-Fluoro-4-nitro-5-(trifluoromethoxy)pyridine-3-acetonitrile
4-Hydroxy-3-nitro-2-(trifluoromethoxy)pyridine-6-acetic acid
Methyl 2-hydroxy-3-methoxy-5-(trifluoromethoxy)pyridine-6-carboxylate