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  • Title: Bioactive saponins from Dioscorea futschauensis.
    Author: Liu HW, Hu K, Zhao QC, Cui CB, Kobayashi H, Yao XS.
    Journal: Pharmazie; 2002 Aug; 57(8):570-2. PubMed ID: 12227201.
    Abstract:
    A new anti-neoplastic spirostanol saponin, (25S)-spirost-5-en-3 beta, 27-diol-3O-[alpha-L-rhamnopyranosyl(1-->2)-beta-D-glucopyranosyl (1-->3)]-beta-D-glucopyranoside and three known compounds viz. prosapogenin A of dioscin, dioscin and gracilin were isolated from Dioscorea futschauensis by bioactivity-guided fractionation. Their structures were elucidated mainly by means of spectroscopic analysis. Their bioactivity against Pyricularia oryzae and cytotoxic activity on ts-FT210 cell line was evaluated.
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