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Characterization of Eight Novel Spiroleptosphols from Fusarium avenaceum.


ABSTRACT: Chemical analyses of Fusarium avenaceum grown on banana medium resulted in eight novel spiroleptosphols, T1, T2 and U-Z (1-8). The structures were elucidated by a combination of high-resolution mass spectrometric data and 1- and 2-D NMR experiments. The relative stereochemistry was assigned by 1H coupling and NOESY/ROESY experiments. Absolute stereochemistry established for 7 by vibrational circular dichroism was found analogous to that of the putative polyketide spiroleptosphol from Leptosphaeria doliolum.

SUBMITTER: Westphal KR 

PROVIDER: S-EPMC6804164 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Chemical analyses of <i>Fusarium avenaceum</i> grown on banana medium resulted in eight novel spiroleptosphols, T1, T2 and U-Z (<b>1</b>-<b>8</b>). The structures were elucidated by a combination of high-resolution mass spectrometric data and 1- and 2-D NMR experiments. The relative stereochemistry was assigned by <sup>1</sup>H coupling and NOESY/ROESY experiments. Absolute stereochemistry established for <b>7</b> by vibrational circular dichroism was found analogous to that of the putative poly  ...[more]

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