UBO - Université de Brest (Université de Bretagne Occidentale - 3 Rue des Archives 29238, Brest - France)
Abstract : Strategic removal of the bisaminal bridge of N-mono- and N1,N7-difunctionalised cyclen glyoxal derivatives was carried out via transamination processes with vicinal diamines. These procedures were found to be particularly well-suited for cyclen targets bearing sensitive groups.