ethyl 4,6-O-benzylidene-2,3-di-O-(chloroacetyl)-1-thio-β-D-glucopyranoside 、
O-(3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1*4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-1-β-D-glucopyranosyl azide 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以82%的产率得到[(1R,3R,5S,7R,8S,9R,11R)-5-[(2R,3S,4R,5R,6S)-6-[(2R,3S,4R,5R,6R)-6-azido-5-(1,3-dioxoisoindol-2-yl)-4-phenylmethoxy-2-(phenylmethoxymethyl)oxan-3-yl]oxy-5-(1,3-dioxoisoindol-2-yl)-4-phenylmethoxy-2-(phenylmethoxymethyl)oxan-3-yl]oxy-5-(chloromethyl)-11-phenyl-2,4,6,10,12-pentaoxatricyclo[7.4.0.03,7]tridecan-8-yl] 2-chloroacetate