【摘要】 从合欢皮的乙醇提取物中用色谱法分离得到1 个三糖链三萜皂甙1， 其21 位侧链含有较为少见的木糖。经化学和波谱分析，将皂甙1 的结构鉴定为3-O-[b-D-吡喃木糖基- (?(r)2)-b-D-吡喃呋糖基-(?(r)6)-b-D-吡喃葡萄糖基]-21-O-{(6S)-2- 反式-2-羟甲基-6-甲基-6-O-[4-O-(6R)-2-反式- ,6-二甲基-6-O-b-D-吡喃木糖基)-2,7-辛二烯酰基]-b-D-吡喃鸡纳糖基]-2,7-辛二烯酰基}-金合欢酸-28-O-b-D-吡喃葡萄糖基-(?(r)3)-[a-L-呋喃阿拉伯糖基-(?(r)4)]-a-L-吡喃鼠李糖基-(?(r)2)-b-D-吡喃葡萄糖基酯，为一新化合物，命名为合欢皂甙J23 1。更多还原

【Abstract】 A new triterpenoid saponin named Julibroside J23 was obtained by HPLC from the stem barks of Albizzia julibrissin Durazz.. Its structure (1) (See Fig. 1) was elucidated on the basis of chemical and spectral analyses.更多还原