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Paper | Regular issue | Vol 38, No. 2, 1994, pp.357-373
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6579
Structure and Synthesis of a Quercetin Glucoxyloside from Kalanchoe prolifera (Raym.-Hamet)

Bakonirina Razanamahefa, Costas Demetzos, Alexios-Léandros Skaltsounis, Marta Andriantisiferana, and François Tillequin*

*Laboratoire de Pharmacognosie,Université René Descartes, Unitè associèe au C.N.R.S. n˚ 1310, Facultè de Pharmacie, 4, Avenue de l‘Observatoire, 75270 Paris Cedex, France


A quercetin glycoside has been isolated from Kalanchoe prolifera. Its structure has been establised as quercetin-3-O-β-D-glucopyranosyl-(1→2)-β-D-xylopyranoside on the basis of its synthesis starting either from 1,2-O-isopropylidene-α-D-xylofuranose or from 1,3,4-tri-O-acetyl-α-D-xylopyranose.