P. Moreau et al., SYNTHESIS OF THE BIFUNCTIONAL CHELATING AGENT ETRA-AZACYCLOTETRADECANE-N,N',N'',N'''-TETRAACETIC ACID (H2NBN-TETA), Synthesis, (9), 1997, pp. 1010
An improved, five-step synthesis (7 % overall yield) of nobenzyl)-1,4,
8,11-tetraazacyclotetradecane-N,N',N '',N'''-tetraacetic acid (H2NBn-T
ETA, 6), an azamacrocyclic ligand used as a radionuclide carrier in ca
ncer chemotherapy, is reported and its complete characterization and p
urification is for the first time described.