Design and synthesis of screening libraries based on the muurolane natural product scaffold

Org Biomol Chem. 2012 May 28;10(20):4015-23. doi: 10.1039/c2ob00029f. Epub 2012 Mar 15.

Abstract

The plant-derived natural product 14-hydroxy-6,12-muuroloadien-15-oic acid (1) was identified as a unique scaffold that could be chemically elaborated to generate novel lead- or drug-like screening libraries. Prior to synthesis a virtual library was generated and prioritised based on drug-like physicochemical parameters such as log P, log D(5.5), hydrogen bond donors/acceptors, and molecular weight. The natural product scaffold (1) was isolated from the endemic Australian plant Eremophila mitchellii and then utilised in the parallel solution-phase generation of two series of analogues. The first library consisted of six semi-synthetic amide derivatives, whilst the second contained six carbamate analogues. These libraries have been evaluated for antimalarial activity using a chloroquine-sensitive Plasmodium falciparum line (3D7) and several compounds displayed low to moderate activity with IC(50) values ranging from 14 to 33 μM.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biological Products / chemical synthesis
  • Biological Products / chemistry*
  • Eremophila Plant / chemistry*
  • Molecular Structure
  • Plasmodium falciparum / drug effects
  • Small Molecule Libraries / chemical synthesis
  • Small Molecule Libraries / chemistry*
  • Small Molecule Libraries / pharmacology
  • Structure-Activity Relationship

Substances

  • Biological Products
  • Small Molecule Libraries