Structural and spectral assignments of six anthraquinone derivatives from the mangrove fungus (ZSUH-36)

Magn Reson Chem. 2008 Sep;46(9):886-9. doi: 10.1002/mrc.2266.

Abstract

A new natural product named 6,8,1'-tri-O-methyl averantin (1) has been isolated together with five known anthraquinones 1'-O-methyl averantin (2), 6,8-di-O-methyl averufin (3) averufin (4), versicolorin C (5) and 6,8-di-O-methyl averufanin (6) from a mangrove endophytic fungus ZSUH-36 collected from the South China Sea. NMR techniques including COSY, HMQC, and HMBC were used to elucidate the structures of these compounds. We report the unambiguous assignments of the (1)H and (13)C NMR spectra of the new compound 6,8,1'-tri-O-methyl averantin(1).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anthraquinones / chemistry*
  • Anthraquinones / isolation & purification
  • Ascomycota / chemistry*
  • Carbon Isotopes
  • Magnetic Resonance Spectroscopy / methods*
  • Magnetic Resonance Spectroscopy / standards*
  • Molecular Structure
  • Protons
  • Reference Standards
  • Stereoisomerism

Substances

  • Anthraquinones
  • Carbon Isotopes
  • Protons