Chemical constituents of Cinnamomum cebuense / 中国天然药物
Chinese Journal of Natural Medicines (English Ed.)
; (6): 264-268, 2013.
Article
Dans En
| WPRIM
| ID: wpr-812695
Responsable en Bibliothèque :
WPRO
ABSTRACT
AIM@#To investigate the chemical constituents of Cinnamomum cebuense, an endemic and critically endangered tree found only in Cebu, Philippines.@*METHODS@#The compounds were isolated by silica gel chromatography. The structures of the isolates were elucidated by NMR spectroscopy.@*RESULTS@#The dichloromethane (DCM) extract of the bark of C. cebuense afforded a new monoterpene natural product 1 and a new sesquiterpene 2, along with the known compounds, 4-hydroxy-3-methoxycinnamaldehyde (3), 4-allyl-2-methoxyphenol (4), α-terpineol (5) and humulene (6). The DCM extract of the leaves of C. cebuense yielded 6, β-caryophyllene (7), squalene (8), and a mixture of α-amyrin (9), β-amyrin (10) and bauerenol (11). The structures of 1-7 were elucidated by extensive 1D and 2D NMR spectroscopy, while the structures of 8-11 were identified by comparison of their (13)C NMR data with those reported in the literature.@*CONCLUSION@#The bark of C. cebuense afforded monoterpenes, sesquiterpenes and phenolics, while the leaves yielded sesquiterpenes and triterpenes.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Philippines
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Triterpènes
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Extraits de plantes
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Spectroscopie par résonance magnétique
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Chimie
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Feuilles de plante
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Cinnamomum
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Écorce
Pays comme sujet:
Asia
langue:
En
Texte intégral:
Chinese Journal of Natural Medicines (English Ed.)
Année:
2013
Type:
Article