Solid phase library synthesis of cyclic depsipeptides: aurilide and aurilide analogues

J Comb Chem. 2003 Jul-Aug;5(4):414-28. doi: 10.1021/cc020091r.

Abstract

A solid-phase combinatorial synthesis approach toward the cyclic depsipeptide aurilide (1) and related analogues is described. The peptide moiety 2 was assembled on trityl linker-functionalized SynPhase Crowns using an Fmoc strategy. Optimization of the tetrapeptide assembly 5 was carried out using parallel multiple synthesis and LC/MS analysis. The aliphatic moiety 3a was coupled with the solid-supported 2 using DIC/HOBt. Following deprotection and cleavage of linear precursor 26, macrocyclization was achieved under high dilution conditions. Removal of the methylthiomethyl protecting group provided aurilide (1) in 11% overall yield. Synthesis of a combinatorial library of aurilide derivatives 4 was accomplished with a similar protocol using the TranSort technique.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / chemical synthesis*
  • Anti-Bacterial Agents / chemistry
  • Combinatorial Chemistry Techniques / methods*
  • Gas Chromatography-Mass Spectrometry
  • Magnetic Resonance Spectroscopy
  • Oligopeptides / chemical synthesis
  • Oligopeptides / chemistry
  • Peptide Library
  • Peptides, Cyclic / chemical synthesis*
  • Peptides, Cyclic / chemistry

Substances

  • Anti-Bacterial Agents
  • Oligopeptides
  • Peptide Library
  • Peptides, Cyclic