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