Efficient solid-phase synthesis of highly functionalized 1,4-benzodiazepin-5-one derivatives and related compounds by intramolecular aza-Wittig reactions

Chemistry. 2005 Apr 22;11(9):2680-8. doi: 10.1002/chem.200401112.

Abstract

Due to their widespread biological activities and favorable pharmacokinetic properties, benzodiazepines were among the first classes of small molecules to be synthesized on solid supports. Since then, there have been numerous reports on the synthesis of similar skeletons. We have employed the T1 triazene linker to yield 1,4-benzodiazepin-5-one. Starting from various substituted triazene resins, cleavage in the presence of an azide donor, such as trimethylsilylazide, gave rise to aryl azides. Intramolecular aza-Wittig reactions produced the appropriately functionalized N-heterocycles. By using this route, the natural product deoxyvasicinone and related compounds were prepared.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Anxiety Agents / chemical synthesis*
  • Anti-Anxiety Agents / chemistry
  • Azides / chemical synthesis
  • Azides / chemistry
  • Benzodiazepinones / chemical synthesis*
  • Benzodiazepinones / chemistry
  • Combinatorial Chemistry Techniques
  • Magnetic Resonance Spectroscopy
  • Organophosphorus Compounds / chemistry
  • Quinazolines / chemical synthesis
  • Triazenes / chemistry

Substances

  • Anti-Anxiety Agents
  • Azides
  • Benzodiazepinones
  • Organophosphorus Compounds
  • Quinazolines
  • Triazenes
  • triphenylphosphine
  • 2,3-trimethylene-4-quinazolone