5-Hydroxy-3-methyl-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
6-Hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-2-acetic acid
2-Hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-5-acetic acid
2-Hydroxy-3-methyl-4-(trifluoromethoxy)pyridine-5-acetic acid