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J Org Chem. 2018 Jan 19;83(2):854-861. doi: 10.1021/acs.joc.7b02844. Epub 2018 Jan 02.

Modular Three-Component Synthesis of 4-Aminoquinolines via an Imidoylative Sonogashira/Cyclization Cascade.

The Journal of organic chemistry

Jurriën W Collet, Kelly Ackermans, Jeffrey Lambregts, Bert U W Maes, Romano V A Orru, Eelco Ruijter

Affiliations

  1. Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam , De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands.
  2. Organic Synthesis, Department of Chemistry, University of Antwerp , Groenenborgerlaan 171, 2020 Antwerp, Belgium.

PMID: 29260564 PMCID: PMC5778392 DOI: 10.1021/acs.joc.7b02844

Abstract

We developed a one-pot, two-stage synthetic route to substituted 4-aminoquinolines involving an imidoylative Sonogashira coupling followed by acid-mediated cyclization. This three-component reaction affords pharmaceutically valuable 4-aminoquinolines in a one-pot procedure from readily available starting materials. The reaction tolerates various substituents on the arene as well as the use of secondary and even primary isocyanides. Additionally, the wide tolerance for functionalized isocyanides allows for the one-pot synthesis of various substituted chloroquine analogues as well as other medicinally relevant products.

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