{4-tert-butoxycarbonylmethyl-7-[3-nitro-5-(4,7,10-tris-tert-butoxycarbonylmethyl-1,4,7,10-tetraaza-cyclododec-1-ylmethyl)-benzyl]-1,4,7,10-tetraaza-cyclododec-1-yl}-acetic acid tert-butyl ester                                                                                                                                                              在
                                                                                                                                                                                 palladium 10% on activated carbon   、                                                                                                  
一水合肼                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 10.0h,
                                                                                                                以75%的产率得到{4-tert-butoxycarbonylmethyl-7-[3-amino-5-(4,7,10-tris-tert-butoxycarbonylmethyl-1,4,7,10tetraaza-cyclododec-1-ylmethyl)-benzyl]-1,4,7,10-tetraaza-cyclododec-1-yl}-acetic acid tert-butyl esterpropionic acid tert-butyl ester