Determination of the absolute configuration of carbohydrate components of flavonol glycosides of the chestnut
- 39 Downloads
On the basis of the rates of their acid hydrolysis, their optical activities, and their IR spectra, it has been established that the glycosides ofAesculus hippocastanum L. are (SK-1) 3-α-L-arabofuranosyloxy-5,7,4′-trihydroxyflavone, (SK-2) 3-α-L-rhamnofuranosyloxy-5,7,4′-trihydroxyflavone, (SK-3) 3-α-L-arabofuranosyloxy-5,7,3′,4′-tetrahydroxyflavone, and (SK-4) 3-α-L-rhamnofuranosyloxy-5,7,3′,4′-tetrahydroxyflavone.
The glycoside SK-3 is identical with avicularin isolated from the leaves ofPsidium quajava . The complete structures of the other three glycosides have been established for the first time.
KeywordsGlycoside Quercetin Kaempferol Absolute Configuration Flavonol Glycoside
- 1.V. N. Spiridonov, Farmatsevtichn. zh., 3, 19–22, 1964.Google Scholar
- 2.V. N. Spiridonov, Abstracts of Papers and Communications at the IX-th Mendeleev Congress [in Russian], 4, 282–283, 1965.Google Scholar
- 3.N. Bagget, S. A. Barker, A. B. Foster, R. H. Moore, and D. H. Whiffen, J. Chem. Soc., 4565, 1960.Google Scholar
- 5.H. El Knaden and V. S. Mohammed, J. Chem. Soc., 3320, 1958.Google Scholar