Ethyl 3-(bromomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-(fluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 3-(bromomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-5-acetate
Methyl 5-(fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate