Molecules 2010, 15(2), 672-679; doi:10.3390/molecules15020672
Communication

A New Flavone C-Glycoside from Clematis rehderiana

Received: 24 December 2009; in revised form: 28 January 2010 / Accepted: 29 January 2010 / Published: 29 January 2010
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: A new flavone C-glycoside, isovitexin 6″-O-E-p-coumarate (1) and two known flavonoid glycosides—quercetin 3-O-β-D-glucuronopyranoside (2) and isoorientin (3)—were isolated from an ethanol extract of aerial parts of Clematis rehderiana. Their structures were determined by spectroscopic methods. The antioxidant effects of the two flavone C-glycosides were evaluated by both the MTT and DPPH assays. Compound 1 showed potent activities against H2O2-induced impairment in PC12 cells within the concentration range tested, whereas compound 3 scavenged DPPH radical strongly, with an IC50 value of 13.5 μM.
Keywords: Clematis rehderiana; flavonoide glycosides; antioxidant
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MDPI and ACS Style

Du, Z.-Z.; Yang, X.-W.; Han, H.; Cai, X.-H.; Luo, X.-D. A New Flavone C-Glycoside from Clematis rehderiana. Molecules 2010, 15, 672-679.

AMA Style

Du Z-Z, Yang X-W, Han H, Cai X-H, Luo X-D. A New Flavone C-Glycoside from Clematis rehderiana. Molecules. 2010; 15(2):672-679.

Chicago/Turabian Style

Du, Zhi-Zhi; Yang, Xian-Wen; Han, Hao; Cai, Xiang-Hai; Luo, Xiao-Dong. 2010. "A New Flavone C-Glycoside from Clematis rehderiana." Molecules 15, no. 2: 672-679.

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