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. 2019 Jul;33(13):1885-1890.
doi: 10.1080/14786419.2018.1478828. Epub 2018 Jun 4.

A new pregnane steroid from cultures of Aspergillus versicolor

Jian-Hai Ding  1   2 , Zhang-Gui Ding  2 , Jiang-Yuan Zhao  2 , Ming-Gang Li  2 , Dong-Bao Hu  3 , Xian-Jun Jiang  4 , Dong-Sheng Zhou  4 , Fei Wang  4 , Meng-Liang Wen  2
Affiliations

A new pregnane steroid from cultures of Aspergillus versicolor

Jian-Hai Ding et al. Nat Prod Res. 2019 Jul.

Abstract

A new pregnane steroid, named aspergillon A (1), together with two known compounds, (22E,24R)-ergosta-5,7,22-trien-3β-ol (2) and (22E, 24R)-ergosta-4,6,8(14),22-tetraen-3-one (3) were isolated from cultures of the tin mine tailings-associated fungus Aspergillus versicolor. The new structure and absolute configuration were determined with the help of extensive spectroscopic analyses and quantum chemical calculations of the electronic circular dichroism (ECD) spectra.

Keywords: absolution configuration; electronic circular dichroism; secondary metabolite.

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