Abstract
Three new naphthoquinone pigments, 6,7-dimethoxydihydrolindbladione (1), dihydrolindbladione (2), and 6-methoxydihydrolindbladione (3), have been isolated from a myxomycete Lindbladia tubulina, and their structures were elucidated by spectral data. Compound 3 appreciably exhibited a reversal effect of multidrug resistance. Lindbladione (4), the major pigment of this myxomycete, was also isolated from Cribraria intricata.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Drug Resistance, Multiple / drug effects
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Japan
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Molecular Structure
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Myxomycetes / chemistry*
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Naphthoquinones / chemistry
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Naphthoquinones / isolation & purification*
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Naphthoquinones / pharmacology
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Pigments, Biological / chemistry
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Pigments, Biological / isolation & purification*
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Pigments, Biological / pharmacology
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Spectrophotometry, Ultraviolet
Substances
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Naphthoquinones
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Pigments, Biological