benzyl (3,4-di-O-benzoyl-2-O-methyl-α-L-fucopyranosyl)-(1-6)-3-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside 、 pent-4-enyl (3,4-di-O-acetyl-6-O-benzyl-2-deoxy-2-tetrachlorophthalimido-β-D-glucopyranosyl)-(1-4)-3-O-acetyl-6-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside 在
N-碘代丁二酰亚胺 、
三乙基硅基三氟甲磺酸酯 作用下,
以
二氯甲烷 为溶剂,
以65%的产率得到[(2S,3R,4R,5S,6R)-6-[[(2R,3S,4R,5R,6R)-3-[(2S,3R,4R,5S,6R)-4-acetyloxy-5-[(2S,3R,4R,5S,6R)-4,5-diacetyloxy-6-(phenylmethoxymethyl)-3-(4,5,6,7-tetrachloro-1,3-dioxoisoindol-2-yl)oxan-2-yl]oxy-3-(1,3-dioxoisoindol-2-yl)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-5-(1,3-dioxoisoindol-2-yl)-4,6-bis(phenylmethoxy)oxan-2-yl]methoxy]-4-benzoyloxy-5-methoxy-2-methyloxan-3-yl] benzoate