Triterpenoids from Saussurea ussuriensis
From an extract of the whole plant of Saussurea ussuriensis, three new triterpenoids, 1β-hydroxy-ursa-9(11), 12-dien-3β-yl palmitate (ussuriensin A) ( 1 ), 1β-hydroxy-oleana-9(11), 12-dien-3β-yl palmitate (ussuriensin B) ( 2 ), and 28-hydroxy-taraxast-20(30)-ene-3β-yl palmitate (ussuriensin C) ( 3 )...
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| Veröffentlicht in: | Canadian journal of chemistry 2008-04, Vol.86 (4), p.281-284 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
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| Zusammenfassung: | From an extract of the whole plant of Saussurea ussuriensis, three new triterpenoids, 1β-hydroxy-ursa-9(11), 12-dien-3β-yl palmitate (ussuriensin A) (
1
), 1β-hydroxy-oleana-9(11), 12-dien-3β-yl palmitate (ussuriensin B) (
2
), and 28-hydroxy-taraxast-20(30)-ene-3β-yl palmitate (ussuriensin C) (
3
), as well as five known triterpenoids, 11β-hydroxy-urs-12-en-3-one (
4
), 11β-hydroxy-urs-12-en-3β-yl palmitate (
5
), ursa-9(11), 12-dien-3-one (marsformosanone) (
6
), 3β-hydroxy-30-norlupan-20-one (
7
), and taraxast-20(30)-en-3β, 21α-diol (
8
) were isolated. Their structures were characterized by various spectroscopic methods, including 1D NMR, 2D NMR, and HR-ESI-MS.Key words: Compositae, Saussurea ussuriensis, triterpenoids, ursane, oleanane, taraxastane. |
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| ISSN: | 0008-4042 1480-3291 |
| DOI: | 10.1139/v08-018 |