Asymmetric Total Synthesis of (+)-Quinocarcinamide

Org Lett. 2021 Oct 15;23(20):7972-7975. doi: 10.1021/acs.orglett.1c02970. Epub 2021 Sep 29.

Abstract

The first asymmetric total synthesis of (+)-quinocarcinamide (3), an enantiomer of the natural oxidation product from antitumor antibiotic (-)-quinocarcin (1), is described. Key steps include an iridium-catalyzed asymmetric allylic amidation of racemic alcohol 9, olefin cross-metathesis followed by a SN2' to forge tetrahydroisoquinoline, and stereocontrolled 1,3-dipolar cycloaddition between a facilely generated azomethine ylide and tert-butyl acrylate to construct the diazabicyclo[3.2.1]octane ring.

Publication types

  • Research Support, Non-U.S. Gov't