3-Fluoro-2-(fluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine
3-Fluoro-2-(fluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine
6-Fluoro-3-(fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
2-Fluoro-3-(fluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine