A new pregnane steroid from cultures of Aspergillus versicolor

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 abso...

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Bibliographic Details
Published in:Natural product research 2019-07, Vol.33 (13), p.1885-1890
Main Authors: Ding, Jian-Hai, Ding, Zhang-Gui, Zhao, Jiang-Yuan, Li, Ming-Gang, Hu, Dong-Bao, Jiang, Xian-Jun, Zhou, Dong-Sheng, Wang, Fei, Wen, Meng-Liang
Format: Article
Language:English
Subjects:
absolution configuration
Aspergillus versicolor
electronic circular dichroism
secondary metabolite
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Summary: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.
ISSN:1478-6419
1478-6427
DOI:10.1080/14786419.2018.1478828