%A DING Zhong-Tao ZHOU Jun DAI Hao-Fu TAN Ning-Hua HE Yi-Neng %T Structures of Prostratoside D and E %0 Journal Article %D 2001 %J Plant Diversity %R %P 1-3 %V 23 %N 02 %U {https://journal.kib.ac.cn/CN/abstract/article_32597.shtml} %8 2001-04-25 %X Two new triterpenoid saponins, namely prostratoside D and E, were isolated from the whole plants of Polycarpon prostratum (Forssk.)Aschers. et Schwein. ex Aschers.By spectroscopic methods, their structures were determined as 3-O-{β-D-xylopyranosyl-(1→2)-β-D-glucopyranosyl-(1→4)-[β-D-glucopyranosyl-(1→2)]-a-L-arabinopyranoside}-saikogeninD和3-O-{β-D-xylopyranosyl-(1→2)-β-D-glucopyranosyl-(1→4)-[β-D-glucopyranosyl-(1→2)]-α-L-arabinopyranoside}-saikogenin G,respectively.