Methyl 2-hydroxy-3-methyl-6-(trifluoromethoxy)pyridine-5-acetate
3-Hydroxy-6-methyl-2-(trifluoromethoxy)pyridine-4-acetic acid
Methyl 2-(fluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-6-acetate
5-(Fluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetic acid