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