4-methoxyphenyl 2-deoxy-2-phthalimido-β-D-glucopyranoside 、 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-α-D-glucopyranosyl 2,2,2-trichloroacetimidate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 、
乙腈 为溶剂,
以30%的产率得到Acetic acid (2R,3S,4R,5R,6R)-3-acetoxy-2-acetoxymethyl-5-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-[(2R,3S,4R,5R,6S)-5-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3,4-dihydroxy-6-(4-methoxy-phenoxy)-tetrahydro-pyran-2-ylmethoxy]-tetrahydro-pyran-4-yl ester