甲醇 、
在
2,6-二甲基吡啶 、
甲醇 、 lithium iodide 作用下,
生成 prosapogenin methyl ester 、 methyl O-β-D-xylopyranosyl-(1-3)-O-α-L-arabinopyranosyl-(1-4)-
-O-α-L-rhamnopyranosyl-(1-2)--α-D-xylopyranoside 、 methyl O-β-D-xylopyranosyl-(1-3)-O-α-L-arabinopyranosyl-(1-4)--O-α-L-rhamnopyranosyl-(1-2)--α-D-xylopyranoside