Abstract
A holostane oligoglycoside — pseudostichoposide A — has been isolated from the holothurianPseudostichopus trachus Sluiter, collected on the oceanic side of the island of Urup (Kurile Islands). Its structure has been established with the aid of13C and1H NMR spectroscopy and partial acid hydrolysis with sulfuric acid in the presence of butanol as 3β-{O-(3-O-methyl-β-D-quinovopyransoyl-(1 → 3)-O-β-D-xylopyranosyl-(1 → 4)-O-β-D-quinovopyranosyl-(1 → 2)-[4-O-(sodium sulfato)-β-D-xylopyranosyloxy]}-holost-7-en-22-one. Its native genin, which has been called urupogenin (3β-hydroxyholost-7-en-22-one) was obtained on partial hydrolysis in the form of an individual compound. It is a new holostane derivative.
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Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Branch, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 678–684, September–October, 1989.
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Kalinin, V.I., Stonik, V.A., Kalinovskii, A.I. et al. Structure of pseudostichoposide A — The main triterpene glycoside from the holothurian Pseudostichopus trachus. Chem Nat Compd 25, 577–582 (1989). https://doi.org/10.1007/BF00598079
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DOI: https://doi.org/10.1007/BF00598079