5-(Bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetic acid
Methyl 2-hydroxy-3-methyl-5-(trifluoromethoxy)pyridine-4-acetate
4-(Bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-2-acetic acid
Ethyl 4-hydroxy-5-methyl-3-(trifluoromethoxy)pyridine-2-acetate