2-氰乙基N,N-二异丙基氯亚磷酰胺 、
1-[2-deoxy-5-O-(4,4'-dimethoxytrityl)-α-D-pentofuranosyl]-5-methyl-4-(fluoren-2-ylamino)pyrimidin-2(1H)-one 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以84%的产率得到Diisopropyl-phosphoramidous acid (2R,3S,5S)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-[4-(9H-fluoren-2-ylamino)-5-methyl-2-oxo-2H-pyrimidin-1-yl]-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester