Constituents of Vittaria anguste-elongata and their biological activities

J Nat Prod. 2005 Aug;68(8):1180-4. doi: 10.1021/np050060o.

Abstract

Twelve new compounds, vittarin-A (1), -B (2), -C (3), -D (4), -E (5), -F (6), 3-O-acetylniduloic acid (7), ethyl 3-O-acetylniduloate (8), methyl 4-O-coumaroylquinate (9), vittarilide-A (10), and -B (11), and vittariflavone (12), as well as 20 known compounds have been isolated from the whole plant of Vittaria anguste-elongata. The structures of these compounds were determined by spectroscopic and chemical transformation methods. 5,7-Dihydroxy-3',4',5'-trimethoxyflavone (18) displayed moderate cytotoxicity against human lung carcinoma and central nervous system carcinoma cell lines with inhibition of 89 and 61% at a concentration of 58 microM, respectively. Vittarilide-A (10) and -B (11) and ethyl 4-O-caffeoylquinate (14) exhibited moderate DPPH radical scavenging activity with IC50 values of 91, 290, and 234 microM, respectively.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents, Phytogenic / chemistry
  • Antineoplastic Agents, Phytogenic / isolation & purification*
  • Antineoplastic Agents, Phytogenic / pharmacology
  • Biphenyl Compounds
  • Drug Screening Assays, Antitumor
  • Ferns / chemistry*
  • Free Radical Scavengers / chemistry
  • Free Radical Scavengers / isolation & purification*
  • Free Radical Scavengers / pharmacology
  • Humans
  • Inhibitory Concentration 50
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Phenols / chemistry
  • Phenols / isolation & purification*
  • Phenols / pharmacology
  • Picrates / pharmacology
  • Plants, Medicinal / chemistry*
  • Taiwan
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents, Phytogenic
  • Biphenyl Compounds
  • Free Radical Scavengers
  • Phenols
  • Picrates
  • 1,1-diphenyl-2-picrylhydrazyl