alexa Flavonoid glycosides and an anthraquinone from Rumex chalepensis.


Medicinal Chemistry

Author(s): Hasan A, Ahmed I, Jay M, Voirin B

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Abstract Besides rutin, quercetin 3-rhamnoside and kaempferol 3-rhamnosyl(1-->6) galactoside, a new flavonol glycoside, quercetin 3-glucosyl(1-->4)galactoside, and 1,6,8-trihydroxy-3-methyl anthraquinone (emodin) have been characterized from leaves of Rumex chalepensis. The structures were established on the basis of Rf values, acid hydrolysis to aglycone and sugar and UV, EI and FAB-mass spectra, 1H NMR, 13C DEPT NMR, NOE difference measurement, 1H-H COSY and 1H-13C COSY spectral data.
This article was published in Phytochemistry and referenced in Medicinal Chemistry

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