(2R,3R,4R,5R,6R)-5-azido-2-(azidomethyl)-6-(((1R,2S,3S,4R,6S)-4,6-diazido-3-(((2R,3R,4S,5S)-4-azido-3,5-bis(benzyloxy)tetrahydro-2H-pyran-2-yl)oxy)-2-hydroxycyclohexyl)oxy)tetrahydro-2H-pyran-3,4-diyl diacetate 、 2,3,5-tri-O-acetyl-D-ribofuranosyl trichloroacetimidate 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
生成
、