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Chemistry of Natural Compounds

, Volume 33, Issue 5, pp 548–553 | Cite as

Proanthocyanidins ofPolygonum coriarium. IV. Structures of proanthocyanidins T3 and T4

  • B. M. Keneshov
  • Z. A. Kuliev
  • A. D. Vdovin
  • N. D. Abdullaev
  • A. A. Nishanov
Article

Abstract

Two oligomeric proanthocyanidins have been isolated from the roots ofPolygonum coriarium. By a study of their physical properties and spectral characteristics and analysis of the results of chemical transformations, the chemical structures of these compounds have been established as: (−)-epicatechin-77[O-β-D-glucopyranosyl]3\(\xleftarrow{6}\) O-²-D-glucopyranosyl\(\xleftarrow{6}\)(m-trigallolyl)-[(4β-6)-(−)-epigallocatechin]2-(4β-6)-(−)-epigallocatechin—T3; and (−)-epicatechin-3-O-galloyl-7-[O-β-D-glucopyranosyl]3←O-β-D-glucopyranosyl\(\xleftarrow{6}\)galloyl-[(4β-6)-(−)-epicatechin]4-(4β-6)-(−)-epigallocatechin — T4.

Keywords

Organic Chemistry Spectral Characteristic Chemical Transformation Epicatechin Epigallocatechin 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    B. M. Keneshov, Z. A. Kuliev, A. D. Vdovin, N. D. Abdullaev, and A. A. Nishanov, Khim. Prir. Soedin. (1997).Google Scholar
  2. 2.
    A. S. Sadykov, A. K. Karimdzhanov, A. I. Ismailov, and Sh. Yu. Islambekov, Trudy TashGU,2, No. 286 (1966).Google Scholar
  3. 3.
    Sh. Yu. Islambekov, A. K. Karimdzhanov, A. I. Ismailov, and A. S. Sadykov, Khim. Prir. Soedin., 191 (1968).Google Scholar
  4. 4.
    Sh. Yu. Islambekov, A. K. Karimdzhanov, A. I. Ismailov, and A. S. Sadykov, Khim. Prir. Soedin., 325 (1969).Google Scholar
  5. 5.
    A. B. Makhmatkulov, Z. A. Kuliev, A. D. Vdovin, M. R. Yagudaev, and V. M. Malikov, Khim. Prir. Soedin., 59 (1992).Google Scholar
  6. 6.
    A. B. Makhmatkulov, Z. A. Kuliev, A. D. Vdovin, and V. M. Malikov, Khim. Prir. Soedin., 233 (1994).Google Scholar
  7. 7.
    G. Nonaka, F. Hsu, and I. Nishioka, J. Chem. Soc., Chem. Commun., 781 (1981).Google Scholar
  8. 8.
    A. D. Vdovin, Z. A. Kuliev, and N. D. Abdullaev, Khim. Prir. Soedin., 16 (1997).Google Scholar
  9. 9.
    T. Tanaka, G.-I. Nonaka, and I. Nishioka, Chem. Pharm. Bull.,32, 117 (1984).Google Scholar
  10. 10.
    M. Nishizawa, Y. Yamagishi, G.-I. Nonaka, and I. Nishioka, J. Chem. Soc., Perkin Trans. I, 961 (1983).Google Scholar
  11. 11.
    M. Nishizawa, T. Yamagishi, G.-I. Nonaka, and I. Nishioka, J. Chem. Soc., Perkin Trans. I, 2963 (1982).Google Scholar
  12. 12.
    Kim Kvan Zi, Z. A. Kuliev, A. D. Vdovin, M. R. Yagudaev, and V. M. Malikov, Khim. Prir. Soedin., 771 (1991).Google Scholar

Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

  • B. M. Keneshov
    • 2
  • Z. A. Kuliev
    • 1
  • A. D. Vdovin
    • 1
  • N. D. Abdullaev
    • 1
  • A. A. Nishanov
    • 2
  1. 1.Institute of the Chemistry of Plant SubstancesAcademy of Sciences of the Republic of UzbekistanTashkent
  2. 2.Osh State UniversityUSSR

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