2-氰乙基N,N-二异丙基氯亚磷酰胺 、
N-(7-{(2R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-furan-2-yl}-4-oxo-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)-isobutyramide 在
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 为溶剂,
以84%的产率得到Diisopropyl-phosphoramidous acid (2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(2-isobutyrylamino-4-oxo-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-7-yl)-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester