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    Cytotoxic Oleanane-type Triterpenen Saponins with N-acetyl Sugar from Albizia inundata [abstract]

    Zhang, Huaping
    Rao, Karumanchi V.
    Samadi, Abbas
    Tong, Xiaoqin
    Araya Barrantes, Juan Jose
    Timmermann, Barbara N.
    Cohen, Mark S.
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    [PDF] CytotoxicOleananeTypeTriterpenen[abstract].pdf (23.45Kb)
    Date
    2010
    Contributor
    University of Missouri (System)
    Format
    Abstract
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    Abstract
    Bioassay-guided fractionation of a CH2Cl2-MeOH extract of the aerial part of Albizia inundata , collected in Argentina, resulted in the isolation of two new oleanane-type triterpene saponins with N-acetyl sugar (1, 2) and seven known saponins (3-9). Their structures were established on the basis of extensive 2D NMR (HSQC, COSY or DQF-COSY, TOCSY, HMBC), ESIMS and chemical methods. Saponins 1-4 showed cytotoxicity against the in JMAR, MDA 1986, UM-SCC-2 and JHU011 human head and neck squamous cells using the MTS assay.
    URI
    http://hdl.handle.net/10355/6248
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