Eburnane‐14‐spiro heterocycles. Synthesis and stereostructure determination by NMR spectroscopy

András Nemes, P. Sohár, István Kövesdi, László Czibula, Attila Csehi, János Kreidl

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Abstract

New spiroheterocyclic systems, eburnane‐14‐spiro‐5′‐oxazolidinedione, eburnane‐14‐spiro‐4′‐imidazolidinedione and related compounds were prepared by reacting vincamine stereoisomers or 14‐desoxy‐14‐aminovincamines with alkyl isocyanates. Stereostructures of the new compounds were proved by 1H and 13C NMR spectroscopy, including DR, DNOE, DEPT and 2D HSC measurements.

Original languageEnglish
Pages (from-to)409-415
Number of pages7
JournalMagnetic Resonance in Chemistry
Volume31
Issue number4
DOIs
Publication statusPublished - 1993

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Keywords

  • H and C NMR spectra
  • 2D HSC
  • Configurations and conformations
  • DEPT
  • DNOE
  • DR
  • Eburnane‐14‐spiro heterocycles
  • Synthesis of C‐14 and C‐16 diastereomers

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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