Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Isolation of Some New Tryptoquivaline-related Metabolites from Aspergillus fumigatus
MIKIO YAMAZAKIEMI OKUYAMAYUKIO MAEBAYASHI
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Keywords: fungal metabolite
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1979 Volume 27 Issue 7 Pages 1611-1617

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Abstract

The structures of tryptoquivaline L, M and N, which were newly isolated from the fungus, Aspergillus fumigatus, have been elucidated as 1, 3 and 11, respectively. Concomitantly, the previously proposed structures of tryptoquivaline C (9) and D (4) have been revised to 10 and 8. The exchange of the hydrogen on C-12 during epimerization of the dextrorotatory tryptoquivalines was demonstrated by means of a deuterium NMR spectral study.

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© The Pharmaceutical Society of Japan
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