Abstract
One new cytotoxic steroid, dendronesterone A (1), two new steroids, dendronesterones B and C (2 and 3), and a known steroid (4) were isolated from the methylene chloride solubles of the Formosan soft coral Dendronephthya gigantea. Two cytotoxic ylangene-type sesquiterpenoids, lemnalol (5) and the new compound cervicol (6), as well as two ylangene-type sesquiterpenoids, isolemnalol (7) (a new compound) and 4-oxo-alpha-ylangene (8), were isolated from the methylene chloride solubles of the Formosan soft coral Lemnalia cervicorni. Their structures were elucidated by 1D and 2D NMR spectral analysis, and their cytotoxicity against selected cancer cells was measured in vitro.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Anthozoa / chemistry*
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Antineoplastic Agents / chemistry
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Antineoplastic Agents / isolation & purification*
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Antineoplastic Agents / pharmacology
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Drug Screening Assays, Antitumor
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HT29 Cells
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Humans
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Leukemia P388
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Mice
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Mice, Inbred DBA
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Oceans and Seas
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Sesquiterpenes / chemistry
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Sesquiterpenes / isolation & purification*
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Sesquiterpenes / pharmacology
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Steroids / chemistry
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Steroids / isolation & purification*
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Steroids / pharmacology
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Tumor Cells, Cultured
Substances
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Antineoplastic Agents
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Sesquiterpenes
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Steroids
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dendronesterone A
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dendronesterone B
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dendronesterone C
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lemnalol