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Strahil Berkov1, Carles Codina, Francesc Viladomat

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Bulgarian Galanthus nivalis yielded five novel alkaloids and five known ones. Researchers identified these compounds using advanced Nuclear Magnetic Resonance (NMR) spectroscopy techniques.

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Area of Science:

  • Phytochemistry
  • Natural Product Chemistry
  • Organic Chemistry

Background:

  • Galanthus nivalis (Snowdrop) is a plant species known for its rich alkaloid content.
  • Bulgarian populations of G. nivalis have not been extensively studied for their phytochemical profile.

Purpose of the Study:

  • To isolate and characterize novel and known alkaloids from Bulgarian Galanthus nivalis.
  • To elucidate the chemical structures of the isolated compounds using spectroscopic methods.

Main Methods:

  • Phytochemical investigation involving extraction and isolation of compounds.
  • Structure elucidation using Nuclear Magnetic Resonance (NMR) spectroscopy, including 1D (1H, 13C) and 2D (1H-1H, 1H-13C) experiments.

Main Results:

  • Isolation of five new alkaloid derivatives: 11-O-(3'-hydroxybutanoyl)hamayne, 3,11-O-(3',3''-dihydroxybutanoyl)hamayne, 3-O-(2''-butenoyl)-11-O-(3'-hydroxybutanoyl)hamayne, 3,11,3''-O-(3',3'',3'''-trihydroxybutanoyl)hamayne, and 2-O-(3'-acetoxybutanoyl)lycorine.
  • Identification of five known alkaloids: ungeremine, lycorine, tazettine, hamayne, and ismine.
  • Confirmation of structures through comprehensive NMR spectroscopic analysis.

Conclusions:

  • The phytochemical study successfully identified a diverse range of alkaloids from Bulgarian G. nivalis.
  • The structural elucidation provides valuable data for understanding the chemotaxonomy and potential bioactivity of this plant species.