5'-acetylthio-5'-deoxy-2',3'-O-isopropylideneadenosine 、
[1-(Benzhydrylidene-amino)-3-bromo-propyl]-phosphonic acid diethyl ester 在
氢氧化钾 作用下,
以
甲醇 为溶剂,
以63%的产率得到[3-[(3aS,4S,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-ylmethylsulfanyl]-1-(benzhydrylidene-amino)-propyl]-phosphonic acid diethyl ester