Chemistry of Natural Compounds

, Volume 16, Issue 4, pp 372–381 | Cite as

Characteristics of the mass spectra of ecdysteroids with different numbers of -OR groups

  • Ya. V. Rashkes
  • N. K. Abubakirov
Article

Abstract

The mass spectra of 15 phytoecdysteroids and acetyl derivatives have been compared. With a decrease in the number of -OR groups, the contribution of cleavages of the bonds of the steroid skeleton increases. 20,22-Diols are characterized by the greatest significance of fragmentation at the C-20–C-22 bond. In all the spectra, clear indications of fragmentation of the side chain at the C-22–C-23, C-23–C-24, and C-24–C-25 bonds are observed.

Keywords

AcOH Ecdysone Cardenolides Acetyl Derivative Ecdysterone 

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Literature cited

  1. 1.
    Z. Saatov, B. Z. Usmanov, and N. K. Abubakirov, Khim. Prir. Soedin., 793 (1979).Google Scholar
  2. 2.
    Z. Saatov, B. Z. Usmanov, and N. K. Abubakirov, Khim. Prir. Soedin., 797 (1979).Google Scholar
  3. 3.
    U. Baltaev, M. B. Gorovits, N. D. Abdullaev, M. R. Yagudaev, and N. K. Abubakirov, Khim. Prir. Soedin., 813 (1977).Google Scholar
  4. 4.
    U. Baltaev, M. B. Gorovits, N. D. Abdullaev, Ya. V. Rashkes, M. R. Yagudaev, and N. K. Abubakirov, Khim. Prir. Soedin., 457 (1978).Google Scholar
  5. 5.
    E. Ohnishi, T. Mizuno, F. Chatani, N. Ikekawa, and S. Sakurai, Science,197, 66 (1977).CrossRefGoogle Scholar
  6. 6.
    A. A. Akhrem, I. S. Levina, and Yu. A. Titov, Ecdysones — Insect Steroid Hormones [in Russian], Minsk (1973), p. 48.Google Scholar
  7. 7.
    M. N. Galbraith and D. H. S. Horn, Austr. J. Chem.,22, 1045 (1969).CrossRefGoogle Scholar
  8. 8.
    M. Koreeda, K. Nakanishi, S. Imai, T. Tsuchiya, and N. Wasada, Mass Spectroscopy,17, 669 (1969).CrossRefGoogle Scholar
  9. 9.
    G. Spiteller, Z. Anal. Chem.,197, 1 (1963).CrossRefGoogle Scholar
  10. 10.
    Ya. V. Rashkes, M. B. Gorovits, G. K. Makarichev, and N. K. Abubakirov, Khim. Prir. Soedin., 747 (1971).Google Scholar
  11. 11.
    Ya. V. Rashkes, R. Sh. Yamatova, and N. K. Abubakirov, Khim. Prir. Soedin.,158 (1975).Google Scholar
  12. 12.
    Ya. V. Rashkes and N. K. Abubakirov, Khim. Prir. Soedin., 615 (1974).Google Scholar
  13. 13.
    I. L. Zatsny, M. B. Gorovits, Ya. V. Rashkes, and N. K. Abubakirov, Khim. Prir. Soedin., 155 (1975).Google Scholar
  14. 14.
    Eight-Peak Index of Mass Spectra, Mass Spectrometry Data Center, Aldermaston, Vol. 1 (1970), p. 47.Google Scholar

Copyright information

© Plenum Publishing Corporation 1981

Authors and Affiliations

  • Ya. V. Rashkes
  • N. K. Abubakirov

There are no affiliations available

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