Next Article in Journal
Microwave Assisted Extraction of Phenolic Compounds from Four Different Spices
Previous Article in Journal
Isolation and Crystal Structure of Marcanine A from Polyalthia plagioneura
Article Menu

Article Versions

Export Article

Open AccessArticle
Molecules 2010, 15(9), 6357-6364; doi:10.3390/molecules15096357

Two New Flavones from Tridax procumbens Linn

1
Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Linan 311300, China
2
College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
3
College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450008, China
*
Author to whom correspondence should be addressed.
Received: 10 July 2010 / Revised: 11 August 2010 / Accepted: 13 August 2010 / Published: 9 September 2010
Download PDF [188 KB, uploaded 18 June 2014]

Abstract

Two new flavones, 8,3′-dihydroxy-3,7,4′-trimethoxy-6-O-β-D-glucopyranosyl flavone (1) and 6,8,3′-trihydroxy-3,7,4′-trimethoxyflavone (2) were isolated from Tridax procumbens Linn., together with the four known compounds puerarin (3), esculetin (4), oleanolic acid (5) and betulinic acid (6). The structures of the two new flavones were elucidated based on chemical analysis and spectral methods (IR, 1D and 2D NMR, ESI-MS, HR-ESI-MS). The antioxidant activity of the two new flavones were evaluated by two methods, the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and ferric reducing antioxidant power (FRAP) assays, and the data showed that compounds 1 and 2 have certain antioxidant activity, with the antioxidant activity of compound 2 being stronger than that of compound 1.
Keywords: Tridax procumbens Linn; 8,3′-dihydroxy-3,7,4′-trimethoxy-6-O-β-D- glucopyranosyl flavone; 6,8,3′-trihydroxy-3,7,4′-trimethoxyflavone; antioxidant activity; DPPH; FRAP Tridax procumbens Linn; 8,3′-dihydroxy-3,7,4′-trimethoxy-6-O-β-D- glucopyranosyl flavone; 6,8,3′-trihydroxy-3,7,4′-trimethoxyflavone; antioxidant activity; DPPH; FRAP
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Xu, R.; Zhang, J.; Yuan, K. Two New Flavones from Tridax procumbens Linn. Molecules 2010, 15, 6357-6364.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top