9-(5-O-{bis[4-(methyloxy)phenyl](phenyl)methyl}-2-deoxy-β-D-erythro-pentofuranosyl)-6-[(1-oxidopyridin-2-yl)sulfanyl]-N-[(phenyloxy)acetyl]-9H-purin-2-amine 、
2-氰乙基N,N-二异丙基氯亚磷酰胺 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以70%的产率得到9-(3-O-{[bis(1-methylethyl)amino]-[(2-cyanoethyl)oxy]phosphanyl}-5-O-{bis[4-(methyloxy)phenyl](phenyl)methyl}-2-deoxy-β-D-erythro-pentofuranosyl)-6-[(1-oxidopyridin-2-yl)sulfanyl]-N-[(phenyloxy)acetyl]-9H-purin-2-amine