alexa [New flavonoid-glycosides from Crataegus monogyna and Crataegus pentagyna].


Journal of Chemical Biology & Therapeutics

Author(s): Nikolov N, Seligmann O, Wagner H, Horowitz RM, Gentili B

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Abstract From the leaves and flowers of Crataegus monogyna and C. Pentagyna six new flavonoid-C- and O-glycosides respectively have been isolated and identified as 2''-O-rhamnosyl-orientin, 2''-O-rhamnosyl-isoorientin, 2''-O-rhamnosyl-isovitexin, rutin, spiraeosid, 8-methoxy-kämpferol and 8-methoxy-kämpferol-3-O-glucoside. The structure of O-rhamnosyl-vitexin and O-acetyl-O-rhamnosyl-vitexin isolated previously, have been elucidated unambigiously mainly by NMR- and MS-spectroscopy. This article was published in Planta Med and referenced in Journal of Chemical Biology & Therapeutics

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