N,N'-di-Boc-N''-(prop-2-ynyl)-guanidine 、
6-azido-6-deoxy-α-D-glucopyranosyl-(1->3)-6-azido-6-deoxy-β-D-fructofuranosyl 6-azido-6-deoxy-α-D-glucopyranoside 在
copper diacetate 、
sodium ascorbate 作用下,
以
水 、
叔丁醇 为溶剂,
以73%的产率得到tert-butyl {(1Z)-{[(1-{[(2R,3S,4S,5R,6R)-6-{[(2S,4R,5R)-5-[(4-{[N',N''-bis(tert-butoxycarbonyl)carbamimidamido]methyl}-1H-1,2,3-triazol-1-yl)methyl]-3-({(2R,4S,5S,6R)-6-[(4-{[N',N''-bis(tertbutoxycarbonyl)carbamimidamido]methyl}-1H-1,2,3-triazol-1-yl)methyl]-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl}oxy)-4-hydroxy-2-(hydroxymethyl)tetrahydrofuran-2-yl]oxy}-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl]methyl}-1H-1,2,3-triazol-4-yl)methyl]amino}[(tert-butoxycarbonyl)amino]methylidene}carbamate