2,2-Dimethyl-propionic acid (2R,3R,4S,5R,6S)-5-acetoxy-6-[(2R,3S,4R,5R,6R)-4-acetoxy-2-benzyloxymethyl-5-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-methoxy-tetrahydro-pyran-3-yloxy]-3,4-dihydroxy-tetrahydro-pyran-2-ylmethyl ester 、 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6S)-3,4,5-triacetoxy-6-[(2R,3S,4R,5R,6S)-4-acetoxy-2-benzyloxymethyl-5-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-phenylsulfanyl-tetrahydro-pyran-3-yloxy]-tetrahydro-pyran-2-ylmethyl ester 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
反应 1.0h,
以54%的产率得到