Antioxidant bisabolane-type sesquiterpenoids from algalderived fungus Aspergillus sydowii EN-434
Chemistry|Updated:2023-04-27
|
Antioxidant bisabolane-type sesquiterpenoids from algalderived fungus Aspergillus sydowii EN-434
Journal of Oceanology and LimnologyVol. 38, Issue 5, Pages: 1532-1536(2020)
Affiliations:
1.Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
2.College of Earth Science, University of Chinese Academy of Sciences, Beijing 100049, China
3.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
together with a pair of new bisabolene derivative (±)-(7
R
*
10
R
*
)-10-hydroxysydowic acid (
2
)
as well as two known analogues hydroxysydonic acid (
3
) and sydowic acid (
4
) were isolated and identified from the endophytic fungal strain
Aspergillus sydowii
EN-434 that was obtained from the marine red alga
Symphyocladia latiuscula
. Their structures were elucidated by nuclear magnetic resonance (NMR)
high resolution electrospray ionization mass spectroscopy (HRESIMS)
and quantum chemical electronic circular dichroism (ECD) calculations as well as comparison of the data with literature reports. Compound
1
exhibited potent DPPH free radical scavenging activity with IC
50
value of 113.5 μmol/L.
关键词
Keywords
references
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Related Institution
University of Chinese Academy of Sciences
Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center
CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences
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College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology