5 research outputs found

    Bi- and tetraflavonoids from Aristolochia ridicula

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    From stems of Aristolochia ridicula, two biflavones, four unusual chalcone-flavone dimers and one tetraflavonoid were isolated. The structures of the seven compounds were elucidated by spectroscopic methods. (C) 2000 Elsevier B.V. Ltd. All rights reserved

    Naturally occurring chalcones and their biological activities

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