The Thorpe-Ziegler-type reaction of 3-cyanopyridine-2(1H)-thiones with Biginelli 6-bromomethyl-3,4-dihydropyrimidin-2(1H)-ones: Cascade assembling of tetra- and pentacyclic heterocyclic scaffolds

Iryna O. Lebedyeva, Victor V. Dotsenko, Vladimir V. Turovtsev, Sergey G. Krivokolysko, V'Yacheslav M. Povstyanoy, Mikhaylo V. Povstyanoy

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

3-Cyanopyridine-2(1H)-thiones have been shown to react with Biginelli-type ethyl 4-aryl-6-(bromomethyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates upon heating in DMF giving rise to ethyl 4-aryl-6-{[(3-cyanopyridin-2-yl)thio] methyl}-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates. The latter upon treatment with an excess of NaH or t-BuOK in boiling DMF undergo a tandem Thorpe-Ziegler-type heterocyclization to give pyrido[3″,2″:4′, 5′]thieno[2′,3′:5,6]pyrido[4,3-d]pyrimidine derivatives in good yields. Selected compounds were tested for antibacterial and antifungal activity.

Original languageEnglish (US)
Pages (from-to)9729-9737
Number of pages9
JournalTetrahedron
Volume68
Issue number47
DOIs
StatePublished - Nov 25 2012

Keywords

  • 3-Cyanopyridine-2(1H)-thiones
  • Biginelli dihydropyrimidinones
  • Cascade reaction
  • Thorpe-Ziegler reaction

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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