N
6-benzoyl-8-iodo-2',3'-O-isopropylidene-5'-O-(triethylsilyl)adenosine 、
9-[5,6,7-trideoxy-2,3-O-isopropylidene-β-D-ribo-hept-6-ynofuranosyl]adenine 在
tris(dibenzylideneacetone)dipalladium (0)
copper(l) iodide 、 P(fur)3 作用下,
以
三乙胺 为溶剂,
反应 5.5h,
以60%的产率得到N
6-benzoyl-2',3'-O-isopropylidene-5'-O-(triethylsilyl)adenosin-8-yl-(8->7')-9-(5,6,7-trideoxy-2,3-O-isopropylidene-β-D-ribo-hept-6-ynofuranosyl)adenine