Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)

An EtOAc extract of the stem bark of Calophyllum caledonicum (Clusiaceae) yielded thirteen new hydroxylated and/or prenylated xanthone derivatives, namely 5-hydroxy-8-methoxyxanthone (1), 3,5-dihydroxy-1,2-dimethoxyxanthone (2), 1,8-dihydroxy-6,7-dimethoxyxanthone (3), 5,7-dihydroxy-2,6-dimethoxyxan...

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Autores principales: Morel, Cécile, Hay, Anne-Emmanuelle, Litaudon, Marc, Sévenet, Thierry, Séraphin, Denis, Bruneton, Jean, Richomme, Pascal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2002
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6146543/
http://dx.doi.org/10.3390/70100038
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author Morel, Cécile
Hay, Anne-Emmanuelle
Litaudon, Marc
Sévenet, Thierry
Séraphin, Denis
Bruneton, Jean
Richomme, Pascal
author_facet Morel, Cécile
Hay, Anne-Emmanuelle
Litaudon, Marc
Sévenet, Thierry
Séraphin, Denis
Bruneton, Jean
Richomme, Pascal
author_sort Morel, Cécile
collection PubMed
description An EtOAc extract of the stem bark of Calophyllum caledonicum (Clusiaceae) yielded thirteen new hydroxylated and/or prenylated xanthone derivatives, namely 5-hydroxy-8-methoxyxanthone (1), 3,5-dihydroxy-1,2-dimethoxyxanthone (2), 1,8-dihydroxy-6,7-dimethoxyxanthone (3), 5,7-dihydroxy-2,6-dimethoxyxanthone (4), 6,8-dihydroxy-3,7-dimethoxy-xanthone (5), 2,5,6,7,8-pentahydroxyxanthone (6), 1,3,8-trihydroxy-5,7-dimethoxyxanthone (7) and according to a previously adopted nomenclature [3], caledonixanthone G-L. (8-13). The structural elucidation of 1-13 were mainly established on the basis of 1D and 2D NMR and HRMS spectroscopic analysis.
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spelling pubmed-61465432018-11-19 Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae) Morel, Cécile Hay, Anne-Emmanuelle Litaudon, Marc Sévenet, Thierry Séraphin, Denis Bruneton, Jean Richomme, Pascal Molecules Article An EtOAc extract of the stem bark of Calophyllum caledonicum (Clusiaceae) yielded thirteen new hydroxylated and/or prenylated xanthone derivatives, namely 5-hydroxy-8-methoxyxanthone (1), 3,5-dihydroxy-1,2-dimethoxyxanthone (2), 1,8-dihydroxy-6,7-dimethoxyxanthone (3), 5,7-dihydroxy-2,6-dimethoxyxanthone (4), 6,8-dihydroxy-3,7-dimethoxy-xanthone (5), 2,5,6,7,8-pentahydroxyxanthone (6), 1,3,8-trihydroxy-5,7-dimethoxyxanthone (7) and according to a previously adopted nomenclature [3], caledonixanthone G-L. (8-13). The structural elucidation of 1-13 were mainly established on the basis of 1D and 2D NMR and HRMS spectroscopic analysis. MDPI 2002-01-31 /pmc/articles/PMC6146543/ http://dx.doi.org/10.3390/70100038 Text en © 2002 by MDPI (http://www.mdpi.org). Reproduction is permitted for non commercial purposes.
spellingShingle Article
Morel, Cécile
Hay, Anne-Emmanuelle
Litaudon, Marc
Sévenet, Thierry
Séraphin, Denis
Bruneton, Jean
Richomme, Pascal
Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)
title Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)
title_full Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)
title_fullStr Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)
title_full_unstemmed Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)
title_short Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)
title_sort thirteen new xanthone derivatives from calophyllum caledonicum (clusiaceae)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6146543/
http://dx.doi.org/10.3390/70100038
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