Synthesis of the marine bromotyrosine psammaplin F and crystal structure of a psammaplin A analogue

Molecules. 2010 Dec 2;15(12):8784-95. doi: 10.3390/molecules15128784.

Abstract

Psammaplin F, an unsymmetrical disulfide bromotyrosine, was isolated from the sponge Pseudoceratina purpurea in 2003. We reported here the first total synthesis of psammaplin F in 12% overall yield by employing Cleland's reagent reduction as key step. The longest linear synthetic sequence starting from 3-bromo-4-hydroxybenzaldehyde and hydantoin was seven steps. In addition, a detailed X-ray crystal structure analysis of psammaplin A analogue 8b is given for the first time.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Crystallography, X-Ray
  • Disulfides / chemical synthesis*
  • Disulfides / chemistry*
  • Molecular Structure
  • Porifera / chemistry*
  • Tyrosine / analogs & derivatives*
  • Tyrosine / chemical synthesis
  • Tyrosine / chemistry

Substances

  • Disulfides
  • bromotyrosine
  • psammaplin F
  • psammaplin A
  • Tyrosine