3-(alpha-L-阿拉伯吡喃糖基氧基)-30-去甲齐墩果烷-12,20(29)-二烯-28-酸 O-6-脱氧-alpha-L-甘露糖基-(1-4)-O-beta-D-吡喃葡萄糖基-(1-6)-beta-D-吡喃葡萄糖基酯