Chemistry of Natural Compounds

, Volume 8, Issue 4, pp 450–457 | Cite as

The structure of the sesquiterpene lactone repin

  • R. I. Evstratova
  • K. S. Rybalko
  • V. I. Sheichenko


1. Three sesquiterpene lactones have been isolated fromCentaurea hyrcanica: repin, acroptilin, and a new lactone related to them with mp 218–220°C (ethanol), [α] D 20 + 104.7° (c 1.91; dioxane).

2. Structure (I) has been proposed for repin on the basis of the reactions performed, of an interpretation of the NMR spectra of compounds (I-XII) using the INDOR method, and also of a study of NMR spectra with additions of a paramagnetic salt.


Lactone Hydroxy Group Sesquiterpene Lactone Lactone Ring Trans Position 


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Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1974

Authors and Affiliations

  • R. I. Evstratova
  • K. S. Rybalko
  • V. I. Sheichenko

There are no affiliations available

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