Isolation and NMR spectroscopic clarification of the alkaloid 1,3,7-trimethylguanine from the ascidian Eudistoma maculosum

Nat Prod Res. 2006 May 10;20(5):479-83. doi: 10.1080/14786410500463270.

Abstract

The alkaloid 1,3,7-trimethylguanine was isolated from the ascidian Eudistoma maculosum, and differences in the NMR spectroscopic data for this compound compared with data in the literature are due to ammonium salt formation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaloids / chemistry
  • Animals
  • Guanine / analogs & derivatives*
  • Guanine / chemistry
  • Magnetic Resonance Spectroscopy
  • Phytotherapy*
  • Urochordata*

Substances

  • 1,3,7-trimethylguanine
  • Alkaloids
  • Guanine