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