

FOLLOWUS
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
MENG Linghong, menglh@qdio.ac.cn
WANG Bingui, wangbg@qdio.ac.cn
收稿:2020-01-23,
录用:2020-4-3,
网络首发:2020-05-05,
纸质出版:2020-09
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Antioxidant bisabolane-type sesquiterpenoids from algalderived fungus
Xueyi HU, Xiaoming LI, Linghong MENG, et al. Antioxidant bisabolane-type sesquiterpenoids from algalderived fungus
Antioxidant bisabolane-type sesquiterpenoids from algalderived fungus
Xueyi HU, Xiaoming LI, Linghong MENG, et al. Antioxidant bisabolane-type sesquiterpenoids from algalderived fungus
A new aromatic bisabolene-type sesquiterpenoid (7
S
8
S
)-8-hydroxysydowic acid (
1
)
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.
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