Solid-phase synthesis of endothelin receptor antagonists

Bioorg Med Chem Lett. 2003 May 19;13(10):1721-4. doi: 10.1016/s0960-894x(03)00236-1.

Abstract

A new solid-phase synthesis for ET receptor antagonists suitable for automation is presented. A support bound 2-hydroxybutyric acid derivative was converted to the corresponding ether derivatives using 4-halo-2-methylsulfonylpyrimidines. Subsequent Suzuki coupling with various aryl boronic acids gave the desired antagonists in good yields and purities. Highly potent antagonists with excellent selectivity for ET(A) were obtained.

MeSH terms

  • Animals
  • Butyrates / chemical synthesis*
  • Butyrates / pharmacology
  • CHO Cells
  • Combinatorial Chemistry Techniques
  • Cricetinae
  • Endothelin Receptor Antagonists*
  • Endothelin-1 / metabolism
  • Humans
  • Protein Binding
  • Pyrimidines / chemical synthesis*
  • Pyrimidines / pharmacology
  • Radioimmunoassay
  • Receptors, Endothelin / genetics
  • Receptors, Endothelin / metabolism
  • Resins, Synthetic
  • Structure-Activity Relationship
  • Transfection

Substances

  • Butyrates
  • Endothelin Receptor Antagonists
  • Endothelin-1
  • Pyrimidines
  • Receptors, Endothelin
  • Resins, Synthetic