Abstract
Novel zinniol-related compound 3, named porritoxin sulfonic acid, with an isoindoline skeleton was isolated from the culture liquid of Alternaria porri. The structure was determined to be 2-(2"-sulfoethyl)-4-methoxy-5-methyl-6-(3'-methyl-2'-butenyloxy)-2,3-dihydro-1H-isoindol-1-one. The phytotoxic activities of three isoindolines (1-3) were evaluated in a seedling-growth assay against stone leek and lettuce.
MeSH terms
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Alternaria / chemistry*
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Indoles / chemistry*
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Indoles / isolation & purification
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Indoles / toxicity
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Isoindoles
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Lactuca / drug effects
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Lactuca / growth & development
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Mycotoxins / chemistry*
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Mycotoxins / isolation & purification
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Mycotoxins / toxicity
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Seeds / drug effects
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Seeds / growth & development
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Structure-Activity Relationship
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Sulfonic Acids / chemistry*
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Sulfonic Acids / isolation & purification
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Sulfonic Acids / toxicity
Substances
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2-(2''-sulfoethyl)-4-methoxy-5-methyl-6-(3'-methyl-2'-butenyloxy)-2,3-dihydro-1H-isoindol-1-one
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Indoles
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Isoindoles
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Mycotoxins
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Sulfonic Acids