Flavans from the leaf of Ilex centrochinensis

J Asian Nat Prod Res. 2011 Apr;13(4):367-72. doi: 10.1080/10286020.2011.552432.

Abstract

Phytochemical investigation of the leaf of Ilex centrochinensis led to the isolation and characterization of four flavans, one flavanone (5), and one flavone (6), including a new compound whose structure was elucidated as (2S)-5,3',4'-trihydroxy-7-methoxyflavan (1) and a new natural product whose structure was elucidated as (2S)-5-hydroxy-7,3',4'-trimethoxyflavan (4) on the basis of spectroscopic methods especially 1D and 2D NMR, CD, and mass spectral analyses. Compounds 1 and 4 exhibited weak cytotoxic activity against Huh7 cell line and no cytotoxic activity against Caco-2 cell line.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents, Phytogenic / chemistry
  • Antineoplastic Agents, Phytogenic / isolation & purification*
  • Antineoplastic Agents, Phytogenic / pharmacology
  • Caco-2 Cells
  • Drug Screening Assays, Antitumor
  • Flavonoids / chemistry
  • Flavonoids / isolation & purification*
  • Humans
  • Ilex / chemistry*
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Plant Leaves / chemistry

Substances

  • (2S)-5,3',4'-trihydroxy-7-methoxyflavan
  • (2S)-5-hydroxy-7,3',4'-trimethoxyflavan
  • Antineoplastic Agents, Phytogenic
  • Flavonoids