2-Hydroxy-5-methoxy-4-(trifluoromethoxy)pyridine-3-acetic acid
4-Fluoro-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine-3-methanol
5-Fluoro-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-methanol
6-Hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine-3-acetic acid