Triterpenoid Saponins from Leaves of Hedera pastuchowii

Five new triterpenoid saponins, pastuchoside A (1), B (3), C (5), D (7) and E (9), were isolated from the leaves of Hedera pastuchowii. They have oleanolic acid or hederagenin as aglycone. The structures were established by NMR spectroscopy including gs (gradient selected)-COSY, gs-HSQC, gs-HSQC-TOC...

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Veröffentlicht in:	Chemical & Pharmaceutical Bulletin 2004, Vol.52(12), pp.1411-1415
Hauptverfasser:	Mshvildadze, Vakhtang, Elias, Riad, Faure, Robert, Rondeau, David, Debrauwer, Laurent, Dekanosidze, Genri, Kemertelidze, Ether, Balansard, Guy
Format:	Artikel
Sprache:	eng
Schlagworte:	Araliaceae Hedera - chemistry Hedera pastuchowii Hydrolysis Magnetic Resonance Spectroscopy Models, Molecular NMR pastuchoside Plant Leaves - chemistry Saponins - chemistry Spectrometry, Mass, Electrospray Ionization Triterpenes - chemistry triterpenoid saponin
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Beschreibung
Zusammenfassung:	Five new triterpenoid saponins, pastuchoside A (1), B (3), C (5), D (7) and E (9), were isolated from the leaves of Hedera pastuchowii. They have oleanolic acid or hederagenin as aglycone. The structures were established by NMR spectroscopy including gs (gradient selected)-COSY, gs-HSQC, gs-HSQC-TOCSY and gs-HMBC experiments, and mass spectrometry ( ESI-HR-MS). Heptaoside saponins, compounds 1 and 3, are described for the first time in the genus Hedera.
ISSN:	0009-2363 1347-5223
DOI:	10.1248/cpb.52.1411