3'-<(3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl)oxy>-6'-carboxymethyloxy-2',7'-dichlorospiroxanthen>-3-one 在
sodium methylate 作用下,
以
甲醇 、
氯仿 为溶剂,
反应 0.5h,
以67.2%的产率得到sodium salt of 3'-<<2-(acetylamino)-2-deoxy-β-D-glucopyranosyl>oxy>-6'-carboxymethoxy-2',7'-dichlorospiro
xanthen>-3-one