prop-2-yn-1-yl 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate 、
butyl 3-(2-amino-9-((2R,4S,5R)-4-((5-azidopentanoyl)oxy)-5-(((5-azidopentanoyl)oxy)methyl)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-8-yl)benzoate 在
copper(II) sulfate 、
sodium ascorbate 作用下,
以
四氢呋喃 、 aq. phosphate buffer 为溶剂,
以79%的产率得到butyl 3-[2-amino-9-[(2R,4S,5R)-4-[5-[4-[[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoyl]oxymethyl]triazol-1-yl]pentanoyloxy]-5-[5-[4-[[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoyl]oxymethyl]triazol-1-yl]pentanoyloxymethyl]oxolan-2-yl]-6-oxo-1H-purin-8-yl]benzoate