Thirteen New Xanthone Derivatives from Calophyllum caledonicum (Clusiaceae)

Molecules

Cຜile Morel¹  Anne-Emmanuelle Hay¹  Marc Litaudon²  Thierry Sévenet²  Denis Séraphin¹  Jean Bruneton¹ 

[1] SONAS, UFR des Sciences Pharmaceutiques et Ingénierie de la santé, 16 Bd Daviers, F-49100 Angers, France.;ICSN-CNRS, Gif-sur-Yvette, F-91191, France.

关键词: NMR;    MS;    xanthones;    Calophyllum caledonicum;    ;    Guttiferae;   

DOI  :  10.3390/70100038

来源: mdpi

【 摘 要 】

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.

【 授权许可】

Unknown   
© 2002 by MDPI (http://www.mdpi.org).