Abstract
Two new members of the spirotetronate class, nai414-A and nai414-B, were discovered and isolated from an Actinoallomurus sp. Their structures were established by 1D and 2D NMR, UV, and MS analyses and by chemical degradation. They showed antimicrobial and antitumor activity against Gram-positive bacteria and against human microvascular endothelial cells, respectively. Substituting bromide for chloride ions in the growth medium afforded mono- and dibrominated derivatives.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Actinomycetales / chemistry*
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Anti-Infective Agents / chemistry
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Anti-Infective Agents / isolation & purification*
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Anti-Infective Agents / pharmacology
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Candida albicans / drug effects
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Endothelial Cells / drug effects
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Gram-Positive Bacteria / drug effects
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Humans
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Hydrocarbons, Halogenated / chemistry
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Hydrocarbons, Halogenated / isolation & purification*
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Hydrocarbons, Halogenated / pharmacology
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Macrophages / drug effects
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Microbial Sensitivity Tests
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Spiro Compounds / chemistry
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Spiro Compounds / isolation & purification*
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Spiro Compounds / pharmacology
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Streptococcus pneumoniae / drug effects
Substances
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Anti-Infective Agents
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Hydrocarbons, Halogenated
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Spiro Compounds
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nai414-A
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nai414-B