N-{9-[(2R,3R,4R,5R)-4-Hydroxy-5-hydroxymethyl-3-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-furan-2-yl]-9H-purin-6-yl}-benzamide 在
N,N-二异丙基乙胺 作用下,
以
吡啶 、
二氯甲烷 为溶剂,
生成 Diisopropyl-phosphoramidous acid (2R,3R,4R,5R)-5-(6-benzoylamino-purin-9-yl)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester