A spirostanol saponin from the underground parts of Ruscus aculeatus |
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| Authors: | Mimaki Y Kuroda M Yokosuka A Sashida Y |
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| Institution: | School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan. mimakiy@ps.toyaku.ac.jp |
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| Abstract: | A new spirostanol saponin was isolated from the underground parts of Ruscus aculeatus and the structure was assigned as (23S,25R)-spirost-5-ene-3 beta,23-diol 23-O-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside] on the basis of spectroscopic analysis, including two-dimensional NMR spectroscopic techniques and the result of acid hydrolysis. The saponin is unique in structure having a diglycoside unit at C-23 of the spirostanol skeleton. |
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