2-氰乙基N,N-二异丙基氯亚磷酰胺 、
Carbonic acid 6-{3-[3-(1-{(2R,4S,5R)-5-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-furan-2-yl}-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-prop-2-ynylcarbamoyl]-propionylamino}-hexyl ester 9H-fluoren-9-ylmethyl ester 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以70%的产率得到6-[[4-[3-[1-[(2R,4S,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyoxolan-2-yl]-2,4-dioxopyrimidin-5-yl]prop-2-ynylamino]-4-oxobutanoyl]amino]hexyl 9H-fluoren-9-ylmethyl carbonate