The synthesis of l-proline derived tetraazamacrocyclic ligands of C2 symmetry via intramolecular ester aminolysis
作者:Michał Achmatowicz、Janusz Jurczak
DOI:10.1016/s0957-4166(01)00012-x
日期:2001.2
A convenient and efficient synthesis of enantiomerically pure 12-. 14-, and 16-membered tetraazamacrocyclic ligands, able to form complexes with transition metal cations, is discussed. Linear alpha,omega -aminoesters, prepared from L-proline, undergo intramolecular aminolysis to afford the corresponding macrocyclic amides in good yields. (C) 2001 Elsevier Science Ltd. All rights reserved.