安徽楤木中三萜类化学成分的研究

Triterpenoids from the Root Bark of Aralia subcapitata

目的：为阐明安徽木的化学成分。方法：安徽楤木根皮甲醇提取物的正丁醇溶解部分进行柱层析分离，根据光谱数据和理化性质确定化合物的结构。结果：从安徽木的根皮中分得４种成分，鉴定为３β羟基齐墩果烷１１，１３（１８）二烯２８酸，３酮齐墩果烷１２烯２８酸，齐墩果酸和胡萝卜甙。结论：以上化合物均为首次从本植物中分离鉴定，其中前两个化合物为首次从该属植物中分离得到。

Objective:To investigate the chemical constituents of Aralia subcapitata.Method:The methanol extract of A. subcapitata was separated by repeated column chromatography,and the compounds were identified on the basis of spectroscopic analysis(IR,EI MS, 1HNMR and 13 CNMR)and physicochemical properties.Result:Four compounds were isolated from the root bark of A. subcapitata.Their structures were identified as 3β hydroxy oleana 11,13(18) dien 28 oic acid(I),3 oxo oleana 12 en 28 oic(Ⅱ),oleanolic acid(Ⅲ)and daucosterol(Ⅳ).Conclusion:All these compounds were isolated from this plant for the first time.Among them,compounds Ⅰand Ⅱ were obtained for the first time from Aralia.