, Volume 35, Issue 10, pp 1277–1278 | Cite as

Further sesterterpenes from the spongeSpongia nitens: 12-epi-scalaradial and 12,18-diepi-scalaradial

  • G. Cimino
  • S. De Stefano
  • A. Di Luccia


2 new tetracarbocyclic sesterterpenes, isomers of the previously2 described scalaradial (1), have been isolated from the marine spongeSpongia nitens and their structures have been established to be2 and3; during the structural work, evidence on the stereochemistry of1,2 and3 has been obtained.


Structural Work 
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  1. 2.
    G. Cimino, S. De Stefano and L. Minale, Experientia29, 934 (1973).Google Scholar
  2. 3.
    G. Cimino, S. De Stefano, L. Minale and E. Trivellone, J. chem. Soc. Perkin I, 1587 (1977).Google Scholar
  3. 4.
    E. Fattorusso, L. Minale, G. Sodano and E. Trivellone, Tetrahedron27, 3909 (1971).Google Scholar
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    E.R.H. Jones, 8th Int. Symp. Chem. nat. Prod. (New Delhi, 6–12 Feb. 1972, p. 42. Ed. T.R. Govindachari. Butterworths, London 1973.Google Scholar
  5. 6.
    For a misprint the α of5 was reported3 positive. The correct value is [α]D (CHCl3), −13.9°.Google Scholar
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    Y. Asakawa and T. Takemoto, Tetrahedron Lett.1977, 1407.Google Scholar
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    I. Kubo, I. Miura, M.J. Pettei, Y.W. Lee, F. Pilkiewicz and K. Nakanishi, Tetrahedron Lett.1977, 4453.Google Scholar

Copyright information

© Birkhäuser Verlag 1979

Authors and Affiliations

  • G. Cimino
    • 1
  • S. De Stefano
    • 1
  • A. Di Luccia
    • 1
  1. 1.Laboratorio per la Chimica di Molecole di Interesse biologico del C.N.R.NaplesItaly

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