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- W2955320853 abstract "Five new triterpene glycosides, psolusosides C 3 (1), D 2 (2), D 3 (3), D 4 (4), and D 5 (5), have been isolated from the sea cucumber Psolus fabricii. The structures of these glycosides were elucidated by 2-dimensional nuclear magnetic resonance spectroscopy and high-resolution mass spectrometry. All the compounds contain hexasaccharide carbohydrate chains, differing from each other in the third monosaccharide residue: xylose was found in psolusosides of group C and glucose in group D. Aglycones of the isolated compounds belong to the holostane type, contain 9(11)-double bond and 16-keto-group and have different side chains. The hemolytic activity against mouse erythrocytes and cytotoxic activity against mouse Ehrlich carcinoma cells (ascite form) and neuroblastoma Neuro 2A cells of 1 to 5 as well as the psolusosides isolated by us earlier, C 1 , C 2 , and D 1 , 26-nor-25-oxo-holotoxin A 1 , and holotoxin A 1 , have been studied. Psolusosides C 2 , D 1 , and D 2 (2) having the aglycones without hydroxy group in the side chain showed the strongest hemolytic action in this series. Psolusoside D 3 (3) containing a peroxide group in the side chain of its aglycone was surprisingly highly cytotoxic in all the tests." @default.
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- W2955320853 date "2019-07-01" @default.
- W2955320853 modified "2023-09-27" @default.
- W2955320853 title "Psolusosides C3 and D2-D5, Five Novel Triterpene Hexaosides From the Sea Cucumber Psolus fabricii (Psolidae, Dendrochirotida): Chemical Structures and Bioactivities" @default.
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- W2955320853 doi "https://doi.org/10.1177/1934578x19861253" @default.
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