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Chemistry of Heterocyclic Compounds

, Volume 42, Issue 1, pp 100–108 | Cite as

Condensed isoquinolines. 19. Synthesis of 1′-R-spiro[6a,11b-diazabenz[e]aceanthrylene-6(7H),4′ (1′H)-pyridine]-5,7(12H)-diones

  • V. M. Kysil
  • L. M. Potikha
  • R. M. Gutsul
  • V. A. Kovtunenko
  • A. V. Turov
Article

Abstract

During acylation of 7-isonicotinoyl-6,12-dihydro-5H-isoquino[2,3-a]quinazolin-5-one or its alkylation followed by treatment with organic bases, spirocyclization occurs with formation of derivatives of a novel heterocyclic system: 1′-acyl-and 1′-alkylspiro[7H,12H-6a,11b-diazabenz[e]aceanthrylene-6(5H),4′(1′ H)-pyridine]-5,7-diones. We have studied the spectral properties of the synthesized spirans. We have shown that 7-nicotinoyl-6,12-dihydro-5H-isoquino[2,3-a]quinazolin-5-one does not undergo an analogous reaction of repeated acylation, while treatment of its quaternary salt with bases leads to a complex mixture of unidentified products.

Keywords

isoquinoline condensed isoquinolines spiropyridines spiro compounds isonicotinoylation spirocyclization 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • V. M. Kysil
    • 1
  • L. M. Potikha
    • 1
  • R. M. Gutsul
    • 1
  • V. A. Kovtunenko
    • 1
  • A. V. Turov
    • 1
  1. 1.Taras Shevchenko Kiev National UniversityKievUkraine

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