Aurantoside L, a New Tetramic Acid Glycoside with Anti-Leishmanial Activity Isolated from the Marine Sponge Siliquariaspongia japonica

Mar Drugs. 2024 Apr 12;22(4):171. doi: 10.3390/md22040171.

Abstract

A new tetramic acid glycoside, aurantoside L (1), was isolated from the sponge Siliquariaspongia japonica collected at Tsushima Is., Nagasaki Prefecture, Japan. The structure of aurantoside L (1) composed of a tetramic acid bearing a chlorinated polyene system and a trisaccharide part was elucidated using spectral analysis. Aurantoside L (1) showed anti-parasitic activity against L. amazonensis with an IC50 value of 0.74 µM.

Keywords: Siliquariaspongia japonica; anti-leishmanial activity; aurantosides; marine natural products; marine sponge; mass spectrometry; nuclear magnetic resonance.

MeSH terms

  • Animals
  • Antiprotozoal Agents / chemistry
  • Antiprotozoal Agents / isolation & purification
  • Antiprotozoal Agents / pharmacology
  • Glycosides* / chemistry
  • Glycosides* / isolation & purification
  • Glycosides* / pharmacology
  • Inhibitory Concentration 50
  • Japan
  • Leishmania* / drug effects
  • Porifera* / chemistry
  • Pyrrolidinones / chemistry
  • Pyrrolidinones / isolation & purification
  • Pyrrolidinones / pharmacology

Substances

  • Glycosides
  • tetramic acid
  • Antiprotozoal Agents
  • Pyrrolidinones