The isolation and synthesis of novel nematocidal dithiocyanates from an Australian marine sponge, Oceanapia sp

J Org Chem. 2001 Nov 16;66(23):7765-9. doi: 10.1021/jo0106750.

Abstract

Bioassay-directed fractionation of the EtOH extract of an Oceanapia sp. collected off the northern Rottnest Shelf, Australia, has yielded three novel dithiocyanates, thiocyanatins A (1), B (2a), and C (2b). The structures were determined by detailed spectroscopic analysis and confirmed by total synthesis. In addition to featuring an unprecedented dithiocyanate functionality, thiocyanatins possess an unusual 1,16-difunctionalized n-hexadecane carbon skeleton and are revealed as a hitherto unknown class of nematocidal agent.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkenes / chemical synthesis*
  • Alkenes / isolation & purification*
  • Alkenes / pharmacology
  • Animals
  • Antinematodal Agents / chemical synthesis*
  • Antinematodal Agents / isolation & purification*
  • Antinematodal Agents / pharmacology
  • Haemonchus / drug effects
  • Haemonchus / growth & development
  • Nuclear Magnetic Resonance, Biomolecular
  • Porifera / chemistry*
  • Structure-Activity Relationship
  • Thiocyanates / chemical synthesis*
  • Thiocyanates / isolation & purification*
  • Thiocyanates / pharmacokinetics
  • Thiocyanates / pharmacology

Substances

  • Alkenes
  • Antinematodal Agents
  • Thiocyanates
  • thiocyanatin A
  • thiocyanatin B