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Nine Triterpene Dimers from Maytenus chuchuhuasca

✍ Scribed by Osamu Shirota; Setsuko Sekita; Motoyoshi Satake; Hiroshi Morita; Koichi Takeya; Hideji Itokawa

Publisher
John Wiley and Sons
Year
2004
Tongue
German
Weight
136 KB
Volume
87
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Nine regioisomeric and stereoisomeric triterpene dimers, named xuxuarine H__α__ (1), xuxuarine H__β__ (2), xuxuarine I__α__ (3), xuxuarine I__β__ (4), isoxuxuarine H__α__ (5), 7,8‐dihydroisoxuxuarine H__α__ (6), 7,8‐dihydroisoxuxuarine I__α__ (7), xuxuarine J__α__ (8), and xuxuarine K__α__ (9), were isolated from the Brazilian medicinal plant ‘xuxuá’ (Maytenus chuchuhuasca Raymond‐Hamet et Colas). Their structures were elucidated on the basis of several spectroscopic analyses including 2D‐NMR experiments, mass spectra, and circular dichroism (CD) studies.

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ChemInform Abstract: New Geometric and S
ChemInform Abstract: New Geometric and Stereoisomeric Triterpene Dimers from Maytenus chuchuhuasca.
✍ O. SHIROTA; H. MORITA; K. TAKEYA; H. ITOKAWA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 2 views

New Geometric and Stereoisomeric Triterpene Dimers from Maytenus chuchuhuasca. -Investigation of the methanolic extract of the title medical plant leads to the discovery of four novel triterpene dimers (I)-(III) besides one known compound scutidin αA. -(SHIROTA, O.; MORITA, H.;