Methyl 2-hydroxy-5-methyl-3-(trifluoromethoxy)pyridine-4-acetate
5-Hydroxy-2-methyl-3-(trifluoromethoxy)pyridine-4-acetic acid
5-Hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-2-acetic acid
3-Hydroxy-4-methyl-2-(trifluoromethoxy)pyridine-5-acetic acid