Ethyl 5-(fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 3-(aminomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 5-(fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 2-(aminomethyl)-6-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylate