Dopaol 2-keto- and 2,3-diketo-glycosides from Chelone obliqua (Scrophulariaceae)

Henrik Franzyk, Carl Erik Olsen, Søren Rosendal Jensen

Research output: Contribution to journalJournal articleResearchpeer-review


Two unique 2-(3,4-dihydroxyphenyl)ethyl glycosides, namely, dopaol beta-D-2-ketoglucopyranoside and dopaol beta-D-2,3-diketoglucopyranoside, were isolated from Chelone obliqua together with the iridoid glucoside catalpol, dopaol beta-D-glucopyranoside, descaffeoylverbascoside, and verbascoside. Glycosides with a diketosugar have not so far been isolated from natural sources.
Original languageEnglish
JournalJournal of Natural Products
Issue number6
Pages (from-to)1052-1054
Publication statusPublished - 2004


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