Globostellatic acids A-D, new cytotoxic isomalabaricane triterpenes from the marine sponge Stelletta globostellata

J Nat Prod. 1996 May;59(5):512-4. doi: 10.1021/np9601317.

Abstract

Four new cytotoxic triterpenes, globostellatic acids A-D (1-4), have been isolated from the marine sponge Stelletta globostellata. Their structures have been determined by interpretation of spectral data. They exhibited cytotoxicity against P-388 murine leukemia cells with IC50 values of 0.1-0.46 microgram/mL.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / isolation & purification*
  • Antineoplastic Agents / pharmacology
  • Drug Screening Assays, Antitumor
  • Leukemia P388 / drug therapy
  • Magnetic Resonance Spectroscopy
  • Mice
  • Porifera / chemistry*
  • Spectrometry, Mass, Fast Atom Bombardment
  • Spectrophotometry, Ultraviolet
  • Triterpenes / chemistry
  • Triterpenes / isolation & purification*
  • Triterpenes / pharmacology

Substances

  • Antineoplastic Agents
  • Triterpenes