N-[2-[[2-[2-[[2-[2-acetamidoethyl-[2-(5-methyl-2,4-dioxopyrimidin-1-yl)acetyl]amino]acetyl]amino]ethyl-[2-(5-methyl-2,4-dioxopyrimidin-1-yl)acetyl]amino]acetyl]amino]ethyl]-N-(2-amino-2-oxoethyl)pent-4-ynamide 、 5"-azido-5"-deoxyneomycin hexa(trifluoroacetate) 在
copper(ll) sulfate pentahydrate 、
sodium ascorbate 、
三[(1-苄基-1H-1,2,3-三唑-4-基)甲基]胺 作用下,
以
甲醇 、
水 为溶剂,
反应 1.5h,
以40%的产率得到N-[2-[[2-[2-[[2-[2-acetamidoethyl-[2-(5-methyl-2,4-dioxopyrimidin-1-yl)acetyl]amino]acetyl]amino]ethyl-[2-(5-methyl-2,4-dioxopyrimidin-1-yl)acetyl]amino]acetyl]amino]ethyl]-3-[1-[[(2R,3S,4R,5S)-3-[(2R,3R,4R,5S,6S)-3-amino-6-(aminomethyl)-4,5-dihydroxyoxan-2-yl]oxy-5-[(1R,2R,3S,5R,6S)-3,5-diamino-2-[(2R,3R,4R,5S,6R)-3-amino-6-(aminomethyl)-4,5-dihydroxyoxan-2-yl]oxy-6-hydroxycyclohexyl]oxy-4-hydroxyoxolan-2-yl]methyl]triazol-4-yl]-N-(2-amino-2-oxoethyl)propanamide