diosgenyl 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1->4)-3,6-di-O-benzoyl-2-deoxy-2-[5-(1,2-dithiolan-3-yl)pentanamido]-β-D-glucopyranoside 在
sodium methylate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
以96%的产率得到diosgenyl α-L-rhamnopyranosyl-(1->4)-2-deoxy-2-[5-(1,2-dithiolan-3-yl)pentanamido]-β-D-glucopyranoside