2-氰乙基N,N-二异丙基氯亚磷酰胺 、
N-(9-{(2R,3R,4R,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-3-[1-(2-cyano-ethoxy)-ethoxy]-4-hydroxy-tetrahydro-furan-2-yl}-6-oxo-6,9-dihydro-1H-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68%的产率得到Diisopropyl-phosphoramidous acid (2R,3R,4R,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-[1-(2-cyano-ethoxy)-ethoxy]-5-[6-oxo-2-(2-phenoxy-acetylamino)-1,6-dihydro-purin-9-yl]-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester