(S)-4-((((3aR,4R,6R,6aR)-6-(6-amino-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl)(methyl)amino)-2-((tert-butoxycarbonyl)amino)butanoic acid   、                                                                                      
biphenyl-2,2'-diyldimethanamine                                                                                                                                                              在
                                                                                                                                                                                 benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate   、                                                                                                  
N,N-二异丙基乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 42.0h,
                                                                                                                以62%的产率得到N,N'-(biphenyl-2,2'-diylybismethylene)bis{(2''S)-2''-tert-butoxycarbonylamino-4''-[5'''-deoxy-5'''-(methylamino)-2''',3'''-O-(1''''-ethylethylidene)adenosyl]butanamide}