Flavonoid glycosides fromThalictrum squarrosum St. ex Willd. andThalictrum minus L. |
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| Authors: | E. A. Khamidullina A. S. Gromova V. I. Lutsky A. A. Semenov D. Li N. L. Owen |
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| Affiliation: | (1) Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 ul. Favorskogo, 664033 Irkutsk, Russian Federation;(2) Department of Chemistry and Biochemistry, Brigham Young University, 84602 Provo, Utah, USA |
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| Abstract: | Two flavonoid allose diglycosides were found in the terrestrial part ofThalictrum squarrosum St. ex Willd. andT. minus L. (Ranunculaceae). 7,4′-Di-O-β-allopyranosylapigenin was isolated fromT. minus. InT. squarrosum, its monoacetate was also found and characterized as 7-O-(6-O-acetyl-β-allopyranosyl)-4′-O-(β-allopyranosyl)apigenin. The sites of attachment of the carbohydrate residues were determined by HMBC; the location of the acetate group was identified by ROESY. Both substances were isolated from these plants for the first time. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 392–394, February, 1999. |
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| Keywords: | Thalictrum, flavonoids, glycosides 1H and13C NMR spectroscopy, FAB MS |
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