Carbonic acid allyl ester 2-allyloxycarbonyloxy-3-{(2R,3R,4R,5R)-2-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-5-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-furan-3-yloxy}-propyl ester   、                                                                                      
双(二异丙基氨基)(2-氰基乙氧基)膦                                                                                                                                                              在
                                                                                                                                                                                 
二异丙基铵盐四氮唑                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以75%的产率得到Carbonic acid allyl ester 2-allyloxycarbonyloxy-3-{(2R,3R,4R,5R)-2-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-5-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-[(2-cyano-ethoxy)-diisopropylamino-phosphanyloxy]-tetrahydro-furan-3-yloxy}-propyl ester