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楤木根皮中的主要成分是皂甙。将总皂甙以柱层析分离,得到三个化合物(Ⅰ～Ⅲ),经光谱分析和化学方法证明,Ⅰ为楤木皂甙A(araloside A);Ⅱ为银莲花甙(narcissiflorine);Ⅲ是3-O-[β-D-吡喃葡萄糖-(1→2)-β-D-吡喃木糖-(1→)2)-α-L-阿拉伯糖]-齐墩果酸。Ⅲ为一新皂甙,命名为楤木皂甙D(araloside D)。
The main ingredient in the root bark of eucalyptus is saponin. The total saponins were separated by column chromatography to obtain three compounds (I-III), which were proved by spectral analysis and chemical methods. I was araloside A; II was narcissiflorine; III was 3 -O-[β-D-Glucopyranose-(1→2)-β-D-xylopyrose-(1→)2)-α-L-arabinose]-oleanolic acid. III is a new saponin, which is named Araraside D.