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Biosynthesis of austocystin D in Aspergillus ustus. A carbon-13 nuclear magnetic resonance study

R. Marthinus Horak,  Pieter S. Steyn  and  Robert Vleggaar 

Abstract

The assignment of the natural-abundance 13C n.m.r. spectrum of austocystin D, a mycotoxin produced by Aspergillus ustus MRC 1163, allowed a study of its biosynthetic origin. The complete 13C–13C coupling pattern in austocystin D enriched from [1,2-13C2]acetate has been determined and confirms that no randomisation of labelling in ring A occurs during the anthraquinone → xanthone conversion in the biosynthetic pathway.

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Article type: Paper
DOI: 10.1039/P19830001745
Citation: J. Chem. Soc., Perkin Trans. 1, 1983,0, 1745-1748
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    Biosynthesis of austocystin D in Aspergillus ustus. A carbon-13 nuclear magnetic resonance study

    R. M. Horak, P. S. Steyn and R. Vleggaar, J. Chem. Soc., Perkin Trans. 1, 1983, 0, 1745
    DOI: 10.1039/P19830001745

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