O6-benzyl-3',5'-bis-O-(tert-butyldimethylsilyl)-O2-tris(dimethylamino)phosphonium-2'-deoxyxanthosine hexafluorophosphate   、                                                                                      
N,N,N'-三甲基乙二胺                                                                                                                                                                                              以
                                                                                         
乙二醇二甲醚                                                                                  为溶剂,
                                                                                                                                                    反应 26.0h,
                                                                                                                以71%的产率得到O6-benzyl-3',5'-bis-O-(tert-butyldimethylsilyl)-N2-methyl-N2-[(2-N,N-dimethylamino)ethyl]-2'-deoxyguanosine