4-Hydroxy-3-methyl-2-(trifluoromethoxy)pyridine-6-acetic acid
4-(Fluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-2-methanol
3-(Fluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-6-acetic acid
2-(Chloromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-6-methanol