Ethyl 3-(aminomethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 5-(aminomethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-hydroxy-3-methyl-4-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 3-(aminomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate