Total Synthesis of Aleutianamine

J Am Chem Soc. 2023 Nov 29;145(47):25533-25537. doi: 10.1021/jacs.3c10212. Epub 2023 Nov 15.

Abstract

Aleutianamine is a recently isolated pyrroloiminoquinone natural product that displays potent and selective biological activity toward human pancreatic cancer cells with an IC50 of 25 nM against PANC-1, making it a potential candidate for therapeutic development. We report a synthetic approach to aleutianamine wherein the unique [3.3.1] ring system and tertiary sulfide of this alkaloid were constructed via a novel palladium-catalyzed dearomative thiophene functionalization. Other highlights of the synthesis include a palladium-catalyzed decarboxylative pinacol-type rearrangement of an allylic carbonate to install a ketone and a late-stage oxidative amination. This concise and convergent strategy will enable access to analogues of aleutianamine and further investigation of the biological activity of this unique natural product.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Amination
  • Biological Products*
  • Catalysis
  • Humans
  • Palladium*
  • Stereoisomerism

Substances

  • Palladium
  • Biological Products