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Structures of cucumariosides C1 and C2 — Two new triterpene glycosides from the holothurian Eupentacta fraudatrix

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Abstract

Two new triterpene glycosides — cucmariosides C1 and C2 — have been isolated from the Far Eastern holothurianEupentacta (=Cucumaria)fraudatrix Djakonov et Baranova. Their structures have been established with the aid of13C NMR and PMR spectroscopy, partial acid hydrolysis, periodate oxidation, and methylation as 16β-acetoxy-3-{[3-O-methyl-β-D-xylopyranosyl-(1→3)-β-D-glucopyranosyl-(1→4)] [β-D-xylopyranosyl-(1→2)]-β-D-quinovopyranosyl-(1→2)-β-D-xylopyranosyloxy}holosta-7,23,24(cis)-triene and 16β-acetoxy-3-{[3-O-methyl-β-D-xylopyranosyl-(1→3)-β-D-glucopyranosyl-(1→4)] [β-D-xylopyranosyl-(1→2)]-β-D-quinovopyranosyl-(1→2)-β-D-xylopyranosyloxy}holosta-7,22,24(trans)-triene, respectively.

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Literature cited

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Authors
  1. Sh. Sh. Afiyatullov
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  2. A. I. Kalinovskii
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  3. V. A. Stonik
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Additional information

Pacific Ocean Institute of Bioorganic Chemistry of the Far-Eastern Scientific Center of the USSR Academy of Sciences, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 831–837, November–December, 1987.

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Afiyatullov, S.S., Kalinovskii, A.I. & Stonik, V.A. Structures of cucumariosides C1 and C2 — Two new triterpene glycosides from the holothurian Eupentacta fraudatrix. Chem Nat Compd 23, 691–696 (1987). https://doi.org/10.1007/BF00596644

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  • DOI: https://doi.org/10.1007/BF00596644

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