Two new phenolic glycosides from the leaves of Garcinia epunctata Stapf
-
C. Emade Kwene
,
Bintou Abderamane
Abstract
The leaves of Garcinia epunctata Stapf have furnished two new phenolic glucosides, epunctosides A and B, along with 13 known secondary metabolites identified as lanceoloside A, betulinic acid, lupeol, stigmasterol, β-sitosterol, β-sitosterol-3-O-β-d-glucopyranoside, stigmasterol-3-O-β-d-glucopyranoside, luteolin-7-O-glucoside, quercitin-7-O-glucoside, amentoflavone, robustaflavone, 4′-O-methyl-amentoflavone and 4′-O-methyl-robustaflavone. All structures were established from chemical and spectroscopic evidence including 1D and 2D NMR data as well as by comparing the obtained spectroscopic data with literature. This is the first report of the presence of phenolic glucosides in the genus Garcinia.
Acknowledgments
We thank Victor Nana of the National Herbarium Yaounde for the identification and the harvest of the plant material, Professor Bernard Bodo and M. Alain Blond of the Laboratory of Natural Products, Museum of Natural History, Paris, France, for spectra and the University of Yaounde 1 grants committee for financial assistance.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/znc-2018-0217).
©2020 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
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Artikel in diesem Heft
- Frontmatter
- Research Articles
- Antibacterial and antifungal two phenolic sesquiterpenes from Dysoxylum densiflorum
- Isolation and identification of tuliposides D and F from tulip cultivars
- Identification and characterization of novel short-type BmPGRP-S4 from the silkworm, Bombyx mori, involved in innate immunity
- Folate-conjugated Helix lucorum hemocyanin – preparation, stability, and cytotoxicity
- Comparative studies of the biological activities of selected herbal extracts and phenolic compounds isolated from Rosa gallica
- Ginsenosides, potent inhibitors of sialyltransferase
- Rapid communication
- Two new phenolic glycosides from the leaves of Garcinia epunctata Stapf
