Journal
RSC ADVANCES
Volume 3, Issue 2, Pages 588-595Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ra22701k
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Funding
- National Natural Science Foundations of China [41106136, 41106137]
- Chinese Academy of Sciences for Key Topics in Innovation Engineering [KZCX2-YW-QN209, KSCX2-EW-G-12B]
- 12th Five-Year Science and Technology Plan for Agriculture [2012BAD32B09]
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One new meroterpene, 1,2-dihydroterretonin F (2), five new sesterterpenes, (6 alpha)-21-deoxyophiobolin G (3), (6 alpha)-16,17-dihydro-21-deoxyophiobolin G (4), ophiobolin U (5), ophiobolin V (6), and ophiobolin W(7), two new sesquiterpenes, (6-strobilactone-B) esters of (E,E)-6,7-epoxy-2,4-octadienoic acids (13 and 14), and twelve known terpenes (1, 8-12, and 15-20) were isolated from Aspergillus ustus, a fungus from the fresh tissue of marine green alga Codium fragile. Their structures and absolute configurations were identified by NMR and mass spectroscopic methods as well as quantum chemical calculations. Some of the isolates exhibited antibacterial activity and brine shrimp toxicity.
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