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Molecules 2007, 12(4), 832-841; doi:10.3390/12040832

Cytotoxic Triterpenoid Saponins from the Roots of Platycodon grandiflorum

 and *
Institute of Modern Chinese Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
* Author to whom correspondence should be addressed.
Received: 30 January 2007 / Revised: 2 April 2007 / Accepted: 3 April 2007 / Published: 23 April 2007
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Bioguided fractionation of the ethanol extracts obtained from Platycodon grandiflorum roots led to isolation of two new triterpenoid saponins, characterized as 3-O-β-D-glucopyranosyl-2β,12α,16α,23,24-pentahydroxyoleanane-28(13)-lactone (1) and 3-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl-2β,12α,16α,23α-tetrahydroxyoleanane-28(13)- lactone (2) by 1D- and 2D-NMR and MS techniques, as well as chemical means. Both compounds showed cytotoxic activity against human ECA-109 cells.
Keywords: Platycodon grandiflorum; Triterpenoid saponins; cytotoxic activity Platycodon grandiflorum; Triterpenoid saponins; cytotoxic activity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Zhang, L.; Liu, Z.-H.; Tian, J.-K. Cytotoxic Triterpenoid Saponins from the Roots of Platycodon grandiflorum. Molecules 2007, 12, 832-841.

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