(25S)-26-(β-D-glucopyranosyl)-22ξ-hydroxyfurost-5-en-12-on-3β-yl-O-α-L-rhamnopyranosyl-(1->4)-β-D-glucopyranosyl-(1->3)-O-[O-β-D-glucopyranosyl-(1->2)]-O-β-D-glucopyranosyl-(1->4)-β-D-galactopyranoside 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 6.0h,
生成
(3α,5β,6β,7β,8xi,9xi,14xi,17xi,20xi)-3,6,7-三羟基胆烷-24-酸