p-methoxyphenyl-O-(2,3-di-O-acetyl-6-O-levulinoyl-β-D-glucopyranosyl)-(1-3)-2-deoxy-2-trichloroacetamido-4,6-O-benzylidene-α-D-glucopyranoside 、
乙酸酐 在
吡啶 作用下,
以98%的产率得到p-methoxyphenyl-O-(2,3,4-tri-O-acetyl-6-O-levulinoyl-β-D-glucopyranosyl)-(1-3)-2-deoxy-2-trichloroacetamido-4,6-O-benzylidene-α-D-glucopyranoside