Methyl 4-cyano-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
4-Fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-3-methanol
3-Fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-4-methanol
2-Fluoro-3-hydroxy-5-(trifluoromethoxy)pyridine-4-methanol