Chemistry of Natural Compounds

, Volume 6, Issue 4, pp 429–432 | Cite as

Structure of ursinoic acid and ursinin

  • G. K. Nikonov
  • M. R. Yagudaev
Article

Conclusions

On the basis of UV, IR, and NMR spectroscopy, and the preparation of derivatives, the most probable structures of ursinoic acid and ursinin, aromatic oxo acids isolated previously from the roots ofAngelica ursina Rupr. et Schmalh., have been established. It has been shown that the former has the structure 2′,2′-dimethylpyrano-5′, 6′:5, 6-(2, 4-dimethoxy)benzoylacetic acid while the second is 2′,2′-dimethylpyrano-5′,6′:5, 6-(2-methoxy)benzoylacetic acid.

Keywords

Aromatic Proton Methoxyl Group Silver Salt Olefinic Proton Aromatic Nucleus 

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Reference

  1. 1.
    G. K. Nikonov and N. I. Rodina, ZhOKh,33, 4012, 1963.Google Scholar

Copyright information

© Consultants Bureau 1973

Authors and Affiliations

  • G. K. Nikonov
    • 1
  • M. R. Yagudaev
    • 1
  1. 1.Institute of the Chemistry of Plant Substances, AS UzSSRUSSR

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