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ECB-ART-44831
Molecules 2016 Jul 20;217:. doi: 10.3390/molecules21070939.
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Structures and Biogenesis of Fallaxosides D₄, D₅, D₆ and D₇, Trisulfated Non-Holostane Triterpene Glycosides from the Sea Cucumber Cucumaria fallax.

Silchenko AS , Kalinovsky AI , Avilov SA , Andryjaschenko PV , Dmitrenok PS , Kalinin VI , Chingizova EA , Minin KV , Stonik VA .


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Four new trisulfated triterpene glycosides, fallaxosides D₄ (1), D₅ (2), D₆ (3) and D₇ (4) have been isolated from the sea cucumber Cucumaria fallax (Cucumariidae, Dendrochirotida). The structures of the glycosides have been elucidated by 2D NMR spectroscopy and HRESIMS. All the glycosides have the lanostane aglycones of a rare non-holostane type with 7(8)-, 8(9)- or 9(11)-double bonds, one or two hydroxyl groups occupying unusual positions in the polycyclic nucleus and shortened or normal side chains. The pentasaccharide carbohydrate moieties of 1-4 have three sulfate groups. The cytotoxic activity of glycosides 1-4 against the ascite form of mouse Ehrlich carcinoma cells and mouse spleen lymphocytes and hemolytic activity against mouse erythrocytes have been studied.

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Genes referenced: LOC100887844


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References [+] :
Makarieva, Biosynthetic studies of marine lipids. 42. Biosynthesis of steroid and triterpenoid metabolites in the sea cucumber Eupentacta fraudatrix. 1993, Pubmed, Echinobase