Thonningiiflavanonol A and thonningiiflavanonol B, two novel flavonoids, and other constituents of Ficus thonningii Blume (Moraceae)
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Patrick Y. Ango
,
Ghislain W. Fotso
Abstract
A phytochemical study of Ficus thonningii has led to the isolation of two previously unreported compounds, thonningiiflavanonol A and thonningiiflavanonol B together with 16 known compounds: shuterin, naringenin, syringic acid, p-hydroxybenzoic acid, genistein, 5,7,3′,4′,5′-pentahydroxyflavanone, luteolin, methylparaben, aromadendrin, garbanzol, dihydroquercetin, 5,7,3′-trihydroxyflavanone, β-sitosterol, sitosterolglucoside, lupeol acetate, and taraxerol. Their structures were elucidated on the basis of spectroscopic data. The new compounds and extracts displayed potent antioxidant activity.
Acknowledgments
Patrick Y. Ango is grateful to the Organization for the Prohibition of Chemical Weapons (OPCW) for 3 months financial support (Travel grant and maintenance allowance) at the University of Botswana. The Network of Analytical and Bioassay Services in Africa (NABSA) and the University of Botswana are acknowledged for providing research facilities.
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©2016 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Acute toxicity, antiedematogenic activity, and chemical constituents of Palicourea rigida Kunth
- Fatty acid composition of achenes of Cirsium taxa (Asteraceae, Carduoideae) from Turkey
- Characterization of the cardiac glycoside and lipid profiles of Strophanthus kombé Oliv. seeds
- Thonningiiflavanonol A and thonningiiflavanonol B, two novel flavonoids, and other constituents of Ficus thonningii Blume (Moraceae)
- Some rape/canola seed oils: fatty acid composition and tocopherols
- The physico-chemical properties of some citrus seeds and seed oils
- Chemical constituents and antiproliferative effects of cultured Mougeotia nummuloides and Spirulina major against cancerous cell lines
Artikel in diesem Heft
- Frontmatter
- Acute toxicity, antiedematogenic activity, and chemical constituents of Palicourea rigida Kunth
- Fatty acid composition of achenes of Cirsium taxa (Asteraceae, Carduoideae) from Turkey
- Characterization of the cardiac glycoside and lipid profiles of Strophanthus kombé Oliv. seeds
- Thonningiiflavanonol A and thonningiiflavanonol B, two novel flavonoids, and other constituents of Ficus thonningii Blume (Moraceae)
- Some rape/canola seed oils: fatty acid composition and tocopherols
- The physico-chemical properties of some citrus seeds and seed oils
- Chemical constituents and antiproliferative effects of cultured Mougeotia nummuloides and Spirulina major against cancerous cell lines
