Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
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Five New Triterpenoid Saponins from the Roots of Platycodon grandiflorum
Wen-Wei FuNoriko ShimizuDe-Qiang DouTadahiro TakedaRui FuYue-Hu PeiYing-Jie Chen
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2006 Volume 54 Issue 4 Pages 557-560

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Abstract

Five new triterpenoid saponins, platycoside H [3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-2β,3β,16α,23-tetrahydroxyolean-12-en-28-oic acid 28-O-β-D-xylopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside], platycoside I [3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-2β,3β,16α,23-tetrahydroxyolean-12-en-28-oic acid 28-O-β-D-xylopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside], platycoside J [3-O-β-D-glucopyranosyl-2β,3β,16α,23-tetrahydroxyolean-12-en-28-oic acid 28-O-β-D-xylopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside], platycoside K [3-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl-2β,3β,16α,23,24-pentahydroxyolean-12-en-28-oic acid], and platycoside L [3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-2β,3β,16α,23,24-pentahydroxyolean-12-en-28 oic acid], and three known triterpenoid saponins, platycoside F, platycoside B, and platycoside C, were isolated from the roots of Platycodon grandiflorum A. DC. Their chemical structures were elucidated on the basis of their spectral data and chemical evidence.

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© 2006 The Pharmaceutical Society of Japan
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