JOURNAL 541


Records of Natural Products
VOLUME & ISSUE
Year: 2015 Issue: 3 July-September
PAGES
p.284 - 291
STATISTICS
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AUTHORS
    Lingzhi Li, Ying Peng, Chong Hu, Chunting Liu Qingbo Liu, Linguang Li, Jie Wu and Shaojiang Song
PDF OF ARTICLE

GRAPHICAL ABSTRACT


ABSTRACT


Phytochemical investigation of the aqueous extract of Pithecellobium clypearia afforded one n ovel compound, clypearoside A(1), and one new stereoisomer , (-)-(2S,3S)-epigallocatechin-7-gallate(2) and four known ones (3-6). Their structures were elucidated on the basis of spectroscopic data, especially 2D NMR, HRESIMS and ECD spectra. Compounds 2-4 showed strong activity against DPPH (diphenylpicrylhydrazyl) and ABTS (2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonate) with an IC 50 value of 11.9-13.2 μg/mL (DPPH) and 4.5-6.4 μg/mL (ABTS).

KEYWORDS
  • Pithecellobium clypearia
  • DPPH and ABTS radical scavenging assay
  • ECD spectra

SUPPORTING INFORMATION


Supporting Information
Download File 35-RNP-1402-023-SI.pdf (787.38 KB)