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Flavonoids and phenylpropanoid derivatives from Campanula barbata

Potterat, Olivier
Published in Phytochemistry. 2001, vol. 56, p. 631-636
Abstract Four new phenylpropanoid derivatives, barbatosides A-D, and a new catechin, barbatoflavan, were isolated from the whole plant of Campanula barbata L. (Campanulaceae) and identified as wahlenbergioside-3'-O-glucoside, wahlenbergioside-3'-O-(2"'-(p-methoxycinnamoyl))-glucoside, wahlenbergioside-3'-O-(4"'-(trans-p-coumaroyl))-glucoside, wahlenbergioside-3'-O-(4"'-(cis-p-coumaroyl))-glucoside and 3-acetyl-5-methoxy-7,3',4'-trihydroxy-8-O-glucoside-flavan-3-ol, respectively, by spectroscopic methods. In addition, four flavonols were isolated and identified as kaempferol-3-O-glucoside, kaempferol-3-O-rutinoside, quercetin-3-O-glucoside and quercetin-3-O-rutinoside. Barbatoflavan demonstrated scavenging properties towards the DPPH radical. (C) 2001 Elsevier Science Ltd. All rights reserved.
Keywords campanula barbatacampanulaceaeradical scavenging activityflavonoidsphenylpropanoid derivativesbarbatosides a-dbarbatoflavangreen teaglycosidesantioxidantsglucosides
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CUENDET, Muriel, POTTERAT, Olivier, HOSTETTMANN, Kurt. Flavonoids and phenylpropanoid derivatives from Campanula barbata. In: Phytochemistry, 2001, vol. 56, p. 631-636. doi: 10.1016/s0031-9422(00)00423-4

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Deposited on : 2010-09-02

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