Dopaol 2-Keto- and 2,3-Diketoglycosides from <i>Chelone </i><i>o</i><i>bliqua</i>
作者:Henrik Franzyk、Carl Erik Olsen、Søren Rosendal Jensen
DOI:10.1021/np0499416
日期:2004.6.1
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.