Journal
CHINESE CHEMICAL LETTERS
Volume 30, Issue 5, Pages 981-984Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2019.01.034
Keywords
Pafuranone; Dimer; Fungus; Paraconiothyrium sp.; Enteromorpha prolifera
Categories
Funding
- National Natural Science Foundation of China [41876172, 41806086, U1501221, 41376148, U1606403]
- Fundamental Research Funds for the Central Universities [201841006]
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Pafuranones A (1) and B (2), a pair of new epimeric polyketide dimers, were isolated from the fungus Paraconiothyrium sp. OUCMDZ-3316 associated with the marine algae Enteromorpha prolifera. Their structures, including absolute configurations, were fully elucidated based on spectroscopic analysis, calculated ECD, and chemical methods. Pafuranones A (1) and B (2) possess a rare dimeric furanone skeleton, which might be formed through a conjugate addition of the monomeric units followed by an intramolecular cyclization. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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