Constituents of leaves of phellodendron japonicum MAXIM. and their antioxidant activity

Chih Yang Chiu, Chia Ying Li, Chao Chen Chiu, Masatake Niwa, Susumu Kitanaka, Amooru Gangaiah Damu, E. Jian Lee, Tian Shung Wu

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

Three new flavonoid derivatives, 6‴-O-acetyl amurensin (1), 6‴-O-acetyl phellamurin (3) and (2R)-phellodensin-F (5), together with thirty known compounds have been isolated from the leaves of Phellodendron japonicum MAXIM. Their structures were established by means of spectroscopic analysis, including extensive 2D NMR and Mass spectra. The known compounds were identified by comparison with published physical and spectral data. The isolated compounds were screened for their in vitro antioxidant activity through DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging assay. Compounds quercetin and phellodenin-A demonstrated significant radical scavenging activity.

原文English
頁(從 - 到)1118-1121
頁數4
期刊Chemical and Pharmaceutical Bulletin
53
發行號9
DOIs
出版狀態Published - 2005 九月

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Drug Discovery

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