(Z)-2,5-anhydro-1,3-dideoxy-6,7-O-isopropylidene-1-(3-pyridyl)-3-(piperidin-1-yl)-D-glucohept-1-enitol 、
乙酸酐 以
吡啶 为溶剂,
反应 10.0h,
以97%的产率得到(2S,3R,4R,Z)-2-(2,2-dimethyl-1,3-dioxolan-4-yl)-4-(piperidin-1-yl)-5-(pyridin-3-ylmethylene)tetrahydrofuran-3-yl acetate