3-Hydroxy-2-nitro-4-(trifluoromethoxy)pyridine-5-carboxylic acid
4-Fluoro-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-methanol
Methyl 2-hydroxy-6-nitro-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-hydroxy-5-nitro-6-(trifluoromethoxy)pyridine-3-acetate