N-[6-(1,2-Bis-ethylsulfanyl-ethyl)-9-((2R,4S,5R)-4-hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-9H-purin-2-yl]-2-phenoxy-acetamide                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  
N,N-二异丙基乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 Diisopropyl-phosphoramidous acid (2R,3S,5R)-5-[6-(1,2-bis-ethylsulfanyl-ethyl)-2-(2-phenoxy-acetylamino)-purin-9-yl]-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester