Triterpenes from Maesopsis e minii
Two pentacyclic triterpenes, 1α,3β-dihydroxybauer-7-en-28-oic acid (1) and 3β-hydroxybauer-7-en-28-oic acid (2), together with sitosterol-3-β-O-d-glucopyranoside and stigmasterol have been isolated from the bark of the plant Maesopsis eminii. Their structures have been elucidated by spectroscopic me...
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Veröffentlicht in: | Journal of natural products (Washington, D.C.) D.C.), 2004-12, Vol.67 (12), p.2124-2126 |
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Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | Two pentacyclic triterpenes, 1α,3β-dihydroxybauer-7-en-28-oic acid (1) and 3β-hydroxybauer-7-en-28-oic acid (2), together with sitosterol-3-β-O-d-glucopyranoside and stigmasterol have been isolated from the bark of the plant Maesopsis eminii. Their structures have been elucidated by spectroscopic methods. One of the triterpenes (1) is new, and its structure was confirmed by X-ray crystallographic analysis. This new triterpene displayed moderate antibacterial activity against Bacillus subtilis ATCC 6633. |
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ISSN: | 0163-3864 1520-6025 |
DOI: | 10.1021/np0497548 |