5-ethynyl-2'-deoxy-3',5'-di(triisopropylsilyl)cytidine 在
碘 bis-triphenylphosphine-palladium(II) chloride 、
copper(l) iodide 、
二乙胺 作用下,
以78%的产率得到4-amino-5-[4-[4-amino-2-oxo-1-[(2R,4S,5R)-4-tri(propan-2-yl)silyloxy-5-[tri(propan-2-yl)silyloxymethyl]oxolan-2-yl]pyrimidin-5-yl]buta-1,3-diynyl]-1-[(2R,4S,5R)-4-tri(propan-2-yl)silyloxy-5-[tri(propan-2-yl)silyloxymethyl]oxolan-2-yl]pyrimidin-2-one