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Chemistry of Natural Compounds

, Volume 16, Issue 4, pp 368–372 | Cite as

Triterpenoids from the leaves ofBetula lanata

  • N. D. Pokhilo
  • G. V. Malinovskaya
  • V. V. Makhan'kov
  • V. F. Anufriev
  • N. I. Uvarova
Article
  • 34 Downloads

Abstract

From the unsaponifiable fraction of an ethereal extract of the leaves ofBetula lanata, in addition to 3-epiocotillol (I) we have isolated a new triterpene, 20(S), 24(R)-epoxydammarane-3α,11α,25-triol (V) and also derivatives of it — the monoacetates at C-3 (II) and C-11 (III), and the monoketone at C-3 (IV). The structures of compounds (I-V) have been established on the basis of the results of physicochemical investigations.

Keywords

Betula Acetic Anhydride AcOH Ethereal Extract Ecdysone 

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Literature cited

  1. 1.
    R. Tschesche, G. Biernoth, and G. Snatzke, Ann. Chem.,674, 196 (1964).CrossRefGoogle Scholar
  2. 2.
    T. Ohmoto, T. Nikaido, and M. Ikuse, Chem. Pharm. Bull.,26, 1437 (1978).CrossRefGoogle Scholar
  3. 3.
    E. E. Warnhoff and C. M. Halls, Can. J. Chem.,43, 3311 (1965).CrossRefGoogle Scholar
  4. 4.
    G. V. Malinovskaya, N. D. Pokhilo, V. V. Isakov, and N. I. Uvarova, Khim. Prir. Soedin., 587 (1978).Google Scholar
  5. 5.
    V. L. Novikov, G. V. Malinovskaya, N. D. Pokhilo, and N. I. Uvarova, Khim. Prir. Soedin., 50 (1980).Google Scholar
  6. 6.
    F. G. Fischer and N. Seiler, Ann. Chem.,626, 185 (1959).CrossRefGoogle Scholar

Copyright information

© Plenum Publishing Corporation 1981

Authors and Affiliations

  • N. D. Pokhilo
  • G. V. Malinovskaya
  • V. V. Makhan'kov
  • V. F. Anufriev
  • N. I. Uvarova

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