pent-4-enyl 3,4-di-O-benzyl-2-O-pivaloyl-β-D-glucopyranosyl-(1->6)-3,4-di-O-benzyl-2-O-pivaloyl-β-D-glucopyranoside 、
三甲基乙酰氯 以
吡啶 为溶剂,
反应 1.5h,
以91%的产率得到pent-4-enyl 3,4-di-O-benzyl-2,6-di-O-pivaloyl-β-D-glucopyranosyl-(1->6)-3,4-di-O-benzyl-2-O-pivaloyl-β-D-glucopyranoside