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