phenyl 2-deoxy-3,6-di-O-benzyl-2-tetrachlorophthalimido-β-D-glucopyranosyl-(1->4)-2-deoxy-6-O-benzyl-2-tetrachlorophthalimido-1-thio-β-D-glucopyranoside 、
phenyl 2-deoxy-3,6-di-O-benzyl-4-O-tert-butyldimethylsilyl-2-tetrachlorophthalimido-β-D-glucopyranosyl-(1->4)-2-deoxy-6-O-benzyl-2-tetrachlorophthalimido-1-thio-β-D-glucopyranoside S-oxide 在
三氟甲磺酸酐 、
甲基丁香酚 、 4 A molecular sieve 、
2,6-dineopentylpyridine 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以77%的产率得到2-[(2S,3R,4R,5S,6R)-5-[(2S,3R,4R,5S,6R)-5-[tert-butyl(dimethyl)silyl]oxy-4-phenylmethoxy-6-(phenylmethoxymethyl)-3-(4,5,6,7-tetrachloro-1,3-dioxoisoindol-2-yl)oxan-2-yl]oxy-4-hydroxy-2-[(2R,3S,4R,5R,6S)-6-[(2R,3S,4R,5R,6S)-4-hydroxy-2-(phenylmethoxymethyl)-6-phenylsulfanyl-5-(4,5,6,7-tetrachloro-1,3-dioxoisoindol-2-yl)oxan-3-yl]oxy-4-phenylmethoxy-2-(phenylmethoxymethyl)-5-(4,5,6,7-tetrachloro-1,3-dioxoisoindol-2-yl)oxan-3-yl]oxy-6-(phenylmethoxymethyl)oxan-3-yl]-4,5,6,7-tetrachloroisoindole-1,3-dione