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Echinobase
ECB-ART-42178
Nat Prod Commun 2011 Aug 01;68:1063-8.
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New virescenosides from the marine-derived fungus Acremonium striatisporum.

Afiyatullov SS , Kalinovsky AI , Antonov AS .


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Five new diterpene glycosides, virescenosides Z4-Z8 (1-5) have been isolated from a marine strain of Acremonium striatisporum KMM 4401 associated with the holothurian Eupentacta fraudatrix. Their structures were determined by HRESI-MS and 1D and 2D NMR. Virescenosides Z4-Z8 contain rare altruronic acid 4C1 and 1C4 conformations as their carbohydrate components. Virescenosides Z5 and Z7 exhibit an unusual 16-chloro, 15-hydroxyethylgroup as their side chains.

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