Abstract
A spiroimine, gymnodimine B (1), was isolated from cells recovered by filtration from cultures of a marine dinoflagellate, Gymnodinium sp. Its structure was identified by one- and two-dimensional NMR spectroscopy and mass spectrometry. Gymnodimine B is similar in structure to gymnodimine (2) but contains an exocyclic methylene at C-17 and an allylic hydroxyl group at C-18.
MeSH terms
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Animals
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Dinoflagellida / chemistry*
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Heterocyclic Compounds, 3-Ring / chemistry*
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Heterocyclic Compounds, 3-Ring / isolation & purification
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Hydrocarbons, Cyclic*
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Imines*
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Magnetic Resonance Spectroscopy
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Marine Toxins / chemistry*
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Marine Toxins / isolation & purification
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Mass Spectrometry
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Models, Molecular
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Molecular Structure
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Seawater
Substances
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Heterocyclic Compounds, 3-Ring
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Hydrocarbons, Cyclic
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Imines
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Marine Toxins
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gymnodimine B
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gymnodimine