Saponins from the Processed Rhizomes of Polygonatum kingianum

概要

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Two new spirostanol saponins, named kingianoside H (1) and kingianoside I (2), were isolated from the processed rhizomes of Polygonatum kingianum, along with a known triterpenoid saponin ginsenoside-Rc (3), four known spirostanol saponins Tg (4), (5), polygonatoside C1 (6) and ophiopogonin C′ (7). The structures of the new compounds were elucidated by detailed spectroscopic analyses, including 1D and 2D NMR techniques and chemical methods. Compounds 3 and 5 were first reported from the genus Polygonatum. Compounds 4, 6 and 7 are reported for the first time from the processed Polygonatum kingianum.
公益社団法人　日本薬学会の論文