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Three new manzamine congeners from amphimedon sponge

Watanabe1, Tsuda, Kobayashi

  • 1Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.

Journal of Natural Products
|June 4, 1998
PubMed
Summary

Three new manzamine compounds were discovered in an Okinawan marine sponge. Their chemical structures and stereochemistry were determined using advanced spectroscopic methods and Mosher

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Area of Science:

  • Marine Natural Products Chemistry
  • Organic Chemistry
  • Marine Biology

Background:

  • Marine sponges are a rich source of novel bioactive compounds.
  • The Amphimedon genus is known for producing diverse alkaloids.

Purpose of the Study:

  • To isolate and characterize new manzamine congeners from Amphimedon sp.
  • To elucidate the structures and stereochemistry of these novel compounds.

Main Methods:

  • Isolation of compounds using chromatographic techniques.
  • Structure elucidation via extensive spectroscopic data analysis (NMR, MS).
  • Determination of absolute configuration using modified Mosher's method.

Main Results:

  • Three new manzamine congeners, compounds 1-3, were successfully isolated.
  • The structures and relative stereochemistries of compounds 1-3 were determined.
  • The absolute configuration at C-16 of compound 1 was established.

Conclusions:

  • The study expands the known diversity of manzamine alkaloids.
  • This research highlights the potential of marine sponges as a source for novel chemical entities.

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