S-(diisopropyl phosphonomethyl)isothiouronium tosylate   、                                                                                      
6-N-benzoyl-2',3'-O-methoxymethylidene-5'-O-tosyl-adenosine                                                                                                                                                              在
                                                                                                                                                                                 
sodium isopropylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                生成                                                 N-[9-[(3aR,4R,6S,6aS)-6-[di(propan-2-yloxy)phosphorylmethylsulfanylmethyl]-2-methoxy-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]purin-6-yl]benzamide