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