Ethyl 3-(aminomethyl)-6-cyano-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 4-(aminomethyl)-2-cyano-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 3-(aminomethyl)-5-cyano-2-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 2-(aminomethyl)-5-cyano-3-(trifluoromethoxy)pyridine-4-carboxylate