Pafuranones A and B,two dimeric polyketides from a rare marine algae-derived fungus Paraconiothyrium sp. |
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| Authors: | Yuqi Du Zhengbo Chen Hao Li Yi Wang Peng Fu Weiming Zhu |
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| Affiliation: | Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Pilot National Laboratory for Marine Science and Technology, Qingdao 266003, China |
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| Abstract: | 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. |
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| Keywords: | Pafuranone Dimer Fungus Paraconiothyrium sp. Enteromorpha prolifera |
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