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Withasteroids of Physalis. IX. Physangulide — The first natural 22S-withasteroid

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Abstract

A new withasteroid — physangulide — has been isolated from the leaves ofPhysalis angulata L. It has been shown that physangulide is the first natural 22S-withanolide. Its structure has been determined as 3β,4β,20,24,25-pentahydroxy-1-oxo-5β,6β-epoxy-20R,22S,24S,25R-withanolide. Its1H and13C NMR spectra, confirming this interpretation, are given.

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Authors
  1. O. E. Vasina
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  2. N. D. Abdullaev
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  3. N. K. Abubakirov
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Additional information

Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 366–371, May–June, 1990.

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Vasina, O.E., Abdullaev, N.D. & Abubakirov, N.K. Withasteroids of Physalis. IX. Physangulide — The first natural 22S-withasteroid. Chem Nat Compd 26, 304–307 (1990). https://doi.org/10.1007/BF00597855

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  • DOI: https://doi.org/10.1007/BF00597855

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