Diversity-oriented synthesis of 1-substituted 4-aryl-6-oxo-1,6-dihydropyridine-3-carboxamides

ACS Comb Sci. 2012 Sep 10;14(9):513-9. doi: 10.1021/co3000709. Epub 2012 Aug 15.

Abstract

A simple five-step diversity-oriented synthesis of 1-substituted 4-aryl-6-oxo-1,6-dihydropyridine-3-carboxamides was developed. Treatment of dimethyl 2-((dimethylamino)methylidene)-3-oxopentanedioate with twenty primary amines gave 1-substituted methyl 4-hydroxy-6-oxo-1,6-dihydropyridine-3-carboxylates. Transformation into the corresponding 4-tosyloxy and 4-chloro derivatives, followed by Suzuki-Miyaura arylations gave a series of eleven N-substituted methyl 4-aryl-6-oxo-1,6-dihydropyridine-3-carboxylates. Combinatorial screening was employed to establish suitable reaction conditions for Suzuki-Miyaura arylation of N-alkylpyridones. Hydrolysis of the esters followed by parallel solution-phase amidation of the corresponding carboxylic acids with primary and secondary amines furnished a library of seventeen final products.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amides / chemical synthesis*
  • Amides / chemistry
  • Carboxylic Acids / chemical synthesis
  • Carboxylic Acids / chemistry
  • Combinatorial Chemistry Techniques
  • Cyclization
  • Dihydropyridines / chemical synthesis*
  • Dihydropyridines / chemistry

Substances

  • Amides
  • Carboxylic Acids
  • Dihydropyridines
  • 1,4-dihydropyridine