Chemistry of Natural Compounds

, Volume 50, Issue 2, pp 305–310 | Cite as

Synthesis of 19-(2,6-Dimethylpyrid-4-yl)-20,29,30-trinorlupanes

  • A. N. Antimonova
  • N. I. Petrenko
  • M. M. Shakirov
  • E. E. Shul’tsEmail author

19-(2,6-Dimethylpyrid-4-yl)-20,29,30-trinorlupanes in addition to triterpenoid derivatives condensed in ring A of the pyran-4-one ring were synthesized for the first time from betulin, betulin diacetate, and methyl esters of 3-acetylbetulinic and betulonic acids.


betulin methyl esters of 3-acetylbetulinic and betulonic acids 19-(2,6-dimethylpyrid-4-yl)-20,29,30-trinorlupanes allobetulin 2,3-pyran-4-one[2,3-b]-19-(2,6-dimethylpyrid-4-yl)-20,29,30-trinorlupanes 2,3-pyran-4-one[2,3-b]oleananes acetyl chloride Lewis acids 


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • A. N. Antimonova
    • 1
  • N. I. Petrenko
    • 1
  • M. M. Shakirov
    • 1
  • E. E. Shul’ts
    • 1
    Email author
  1. 1.N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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