Domino [4 + 2] Annulation Access to Quinone-Indolizine Hybrids: Anticancer N-Fused Polycycles

J Org Chem. 2020 Aug 21;85(16):10994-11005. doi: 10.1021/acs.joc.0c01291. Epub 2020 Jul 30.

Abstract

A highly efficient synthetic route to new quinone-indolizine hybrids was accomplished from quinones and N-substituted pyrrole-2-carboxaldehydes via a domino Michael addition-aldol condensation-aromatization sequence through which the central pyridine ring was constructed in atom-economical and environment-friendly manner. Post modification of the resulting products was also demonstrated, enabling further expansion of this heterocyclic chemical space. Biological evaluation of the quinone-indolizine hybrids revealed potent anticancer effects in human prostate adenocarcinoma cells (PC-3) and oral adenosquamous carcinoma cells (CAL-27).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzoquinones
  • Humans
  • Indolizines*
  • Molecular Structure
  • Quinones / pharmacology

Substances

  • Benzoquinones
  • Indolizines
  • Quinones
  • quinone