Please use this identifier to cite or link to this item: https://doi.org/10.1002/mrc.1954
Title: Triterpenoids from Eugenia grandis: Structure elucidation by NMR spectroscopy
Authors: Manoharan, K.P.
Fan, J.S. 
Benny, T.K.H.
Yang, D. 
Keywords: β-sitosterol
2D NMR
3β-friedelinol
13C NMR
1H NMR
Eugenia grandis
Friedelin
Myrtaceae
Triterpenoids
Issue Date: Mar-2007
Citation: Manoharan, K.P., Fan, J.S., Benny, T.K.H., Yang, D. (2007-03). Triterpenoids from Eugenia grandis: Structure elucidation by NMR spectroscopy. Magnetic Resonance in Chemistry 45 (3) : 279-281. ScholarBank@NUS Repository. https://doi.org/10.1002/mrc.1954
Abstract: A new pentacyclic triterpenoid, 2α,3β-dihydroxylup-12-en-28-oic acid (1) and a rarely encountered pentacyclic triterpenoid, 3β-hydroxylup- 12-en-28-oic acid (2), together with five known compounds, friedelin (3), 3β-friedelinol (4), betulinic acid (5), oleanolic acid (6) and β-sitosterol (7) were isolated from the chloroform extract of stem bark of Eugenia grandis (Syn: Syzygium grande). The structure and stereochemistry of the new compound (1) and the rarely encountered compound (2) were established by 1D and 2D NMR spectroscopic techniques. All the above isolated compounds from this plant are reported for the first time. Copyright © 2007 John Wiley & Sons, Ltd.
Source Title: Magnetic Resonance in Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/102072
ISSN: 07491581
DOI: 10.1002/mrc.1954
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