2-氰乙基N,N-二异丙基氯亚磷酰胺 、
N-[9-{(2R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-furan-2-yl}-6-(2-phenylsulfanyl-ethyl)-9H-purin-2-yl]-2-phenoxy-acetamide 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以64%的产率得到Diisopropyl-phosphoramidous acid (2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-[2-(2-phenoxy-acetylamino)-6-(2-phenylsulfanyl-ethyl)-purin-9-yl]-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester