5-iodo-1-(2,3,5-tri-O-p-toluyl-β-D-arabinofuranosyl)uracil 、
丙炔 在
bis-triphenylphosphine-palladium(II) chloride 、
copper(l) iodide 、
三乙胺 作用下,
以72%的产率得到[(2R,3R,4S,5R)-5-(2,4-dioxo-5-prop-1-ynylpyrimidin-1-yl)-3,4-bis[(4-methylbenzoyl)oxy]oxolan-2-yl]methyl 4-methylbenzoate