hexa-tert-butyl 10,10'-((5-(benzyloxy)-1,3-phenylene)bis(methylene))bis(1,4,7,10-tetraazacyclododecane-1,4,7-tricarboxylate)                                                                                                                                                              在
                                                                                                                                                                                 5% Pd(II)/C(eggshell)   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以76%的产率得到Tritert-butyl 10-[[3-hydroxy-5-[[4,7,10-tris[(2-methylpropan-2-yl)oxycarbonyl]-1,4,7,10-tetrazacyclododec-1-yl]methyl]phenyl]methyl]-1,4,7,10-tetrazacyclododecane-1,4,7-tricarboxylate