N-{9-[(4aR,6R,7R,7aR)-2,2-Di-tert-butyl-7-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-furo[3,2-d][1,3,2]dioxasilin-6-yl]-6-oxo-6,9-dihydro-1H-purin-2-yl}-2-phenyl-acetamide 在
氢氟酸 、
N,N-二异丙基乙胺 作用下,
以
吡啶 、
二氯甲烷 为溶剂,
反应 0.5h,
生成 Diisopropyl-phosphoramidous acid (2R,3R,4R,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(6-oxo-2-phenylacetylamino-1,6-dihydro-purin-9-yl)-4-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester