8-Hydroxyflavonoid glucuronides of <Emphasis Type="Italic">Malope trifida</Emphasis> |
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| Authors: | Maria Sikorska Irena Matławska Rafał Fra ski |
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| Institution: | (1) Department of Pharmacognosy, Pozna, University of Medical Sciences, 10 Sieroca Str., 61-771 Pozna, Poland;(2) Faculty of Chemistry, Adam Mickiewicz University, 6 Grunwaldzka Str., 60-780 Pozna, Poland |
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| Abstract: | The new flavonoid: herbacetin 3-O-β-glucopyranoside-8-O-β-glucuronopyranoside (1) together with known gossypetin 3-O-β-glucopyranoside
- 8-O-β-glucuronopyranoside (2) and isoscutellarein: 8-O-β-glucuronopyranoside (3) as well as 4′-methyl ether-8-O-β-glucuronopyranoside
(4), were isolated from the calyx and epicalyx leaves of Malope trifida and identified on the basis of their spectroscopic properties: UV, 1H and 13C NMR, ESI/MS. Two other flavonoids were identified as isoscutellarein: 3′-hydroxy 4′-methyl ether-8-O-β-glucuronoside (5)
and 8-O- rhamnoglucoside (6) on the basis of their UV and ESI/MS data. |
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| Keywords: | Malope trifida Malvaceae Flavonoids Herbacetin 3-O-β -glucopyranoside- 8-O-β -glucuronopyranoside Gossypetin 3-O-β -glucopyranoside - 8-O-β -glucuronopyranoside Isoscutellarein derivatives |
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