6-N-benzoyl-2',3'-O-isopropylideneadenosine-5'-aldehyde 、 magnesium,ethynyl(trimethyl)silane,bromide 以
四氢呋喃 为溶剂,
以70%的产率得到N-[9-[(3aR,4R,6R,6aR)-6-(1-hydroxy-3-trimethylsilylprop-2-ynyl)-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]purin-6-yl]benzamide