pent-4-enyl 2-O-acetyl-3,4-di-O-benzyl-α-D-mannopyranosyl-(1->6)-3,4-di-O-benzyl-2-O-pivaloyl-β-D-glucopyranoside 、
乙酸酐 以
吡啶 为溶剂,
反应 1.0h,
以86%的产率得到pent-4-enyl 2,6-di-O-acetyl-3,4-di-O-benzyl-α-D-mannopyranosyl-(1->6)-3,4-di-O-benzyl-2-O-pivaloyl-β-D-glucopyranoside