NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2023, Vol. 35 ›› Issue (10): 1732-1738. doi: 10.16333/j.1001-6880.2023.10.009

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Study on the secondary metabolites from marine-derived fungi Aspergillus terreus

LI Si-min1,ZHOU Jin-cai1,HE Rong1, TANG Ying-nan1,ZHOU Si-qian2,3,WANG Ya-jing3,LONG Hong-ping2,3*   

  1. 1Shool of Pharmaceutical Sciences,Hunan Vocational College of Science and Technology,Changsha 410004,China;2The First Hospital of Hunan University of Chinese Medicine,Changsha 410007,China;3Hunan University of Chinese Medicine,Changsha 410208,China
  • Online:2023-10-28 Published:2023-10-31

Abstract:

The secondary metabolites of the rice solid fermentation of marine-derived fungus Aspergillus terreus were studied.Thirteen compounds were isolated and purified by macroporous resins,silica gel column chromatography,and semi-preparation liquid method.Their structures were identified as butyrolactone I (1),3-hydroxy-5-[[4-hydroxy-3-(3-methyl-2-buten-1-yl)phenyl]methyl]-4-(4-hy-droxyphenyl)-2(5H)-furanone (2),(±)-asperteretal F (3),asperimide A (4),lovastatin (5),terretonin (6),methyl-3,4,5-trimethoxy-2-(2-(nicotinamido)benzamido)benzoate (7),bisdethiobis(methylthio)acetylaranotin (8),acetylaranotin (9),cyclo-(L-pro-L-Val) (10),cyclo(D-Leu-D-Pro) (11),callyspongidipeptide A (12),(3R,4R)-6,7-dimethoxy-4-hydroxymellein (13) using NMR and HR-ESI-MS data,and by comparing the information with literature data.Compound 12 was isolated from A. terreus for the first time.The protective effects of these compounds on the viability of hypoxia/reoxygenation-induced PC12 cell damage were evaluated by CCK-8 assay in vitro,the results showed that compounds 1,3,5,6,and 7 could significantly reduce the cell damage caused by oxidative stress,which presented neuroprotective activity in PC12 cells.This study lay a foundation for further exploitation the active secondary metabolites of A. terreus.

Key words: fungi, Aspergillus terreus, secondary metabolites, structural identification, neuroprotective activity

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