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Chemistry of Natural Compounds

, Volume 17, Issue 3, pp 273–278 | Cite as

Alkaloids ofRhinopetalum stenantherum. II. The structure of stenanthine and stenanthidine

  • K. Samikov
  • Ya. V. Rashkes
  • R. Shakirov
  • S. Yu. Yunusov
Article
  • 31 Downloads

Abstract

From a methanolic extract of the epigeal part ofRhinopetalum stenantherum have been isolated β-chaconine (I) and the new glucoalkaloids stenanthine with mp 262–264°C [α]D 46.5°, C45H73NO15 (II), and stenanthidine with mp 269–271°C, [α]D −47.5°, C39H63NO11 (III). On the basis of the facts that partial hydrolysis of the trioside (II) formed the biosides (I) and (III), and that on the hydrolysis of the latter the monoside γ-chaconine was found, it may be assumed that stenanthine has the structure of solanidine 3-0-{[0-β-D-glucosyl-(1 → 6)]-[0-α-L-rhamnosyl-(1 → 4)]-D-glucoside}, and stenanthidine that of solanidine 3-0-[0-β-D-glucosyl-(1 → 6)-D-glucoside].

Keywords

Alkaloid Oleanolic Acid Methyl Iodide Partial Hydrolysis Total Alkaloid 

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Copyright information

© Plenum Publishing Corporation 1982

Authors and Affiliations

  • K. Samikov
  • Ya. V. Rashkes
  • R. Shakirov
  • S. Yu. Yunusov

There are no affiliations available

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