N-[2-(1-{(2R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-furan-2-yl}-2-oxo-1,2-dihydro-pyrimidin-4-ylamino)-ethyl]-2,2,2-trifluoro-acetamide 、
双(二异丙基氨基)(2-氰基乙氧基)膦 在
四氮唑 作用下,
以
乙腈 为溶剂,
以69%的产率得到Diisopropyl-phosphoramidous acid (2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-{2-oxo-4-[2-(2,2,2-trifluoro-acetylamino)-ethylamino]-2H-pyrimidin-1-yl}-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester