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Structure-activity relationships of the estrogenic sesquiterpene ester ferutinin. Modification of the terpenoid core

  • G Appendino
  • P Spagliardi
  • Olov Sterner
  • S Milligan
Publishing year: 2004
Language: English
Pages: 1557-1564
Publication/Series: Journal of Natural Products
Volume: 67
Issue: 9
Document type: Journal article
Publisher: The American Chemical Society

Abstract english

Esterification of p-hydroxybenzoic acid, a very weak estrogenic compound, with the daucane alcohol jaeschkeanadiol (1b) leads to a spectacular magnification of the estrogenic activity. To identify the structural elements responsible for this effect, the terpenoid core of jaeschkeanadiol p-hydroxybenzoate (ferutinin, 1a) was modified, capitalizing on the presence of two functionalities, the monoacylated, hydrogen-bonded 1,3-diol system and the double bond. The hydrogen bonding, while possibly useful, was not critical for activity, while hydrogenation and cyclopropanation of the double bond were tolerated. Conversely, oxidative modifications of the double bond that placed a hydroxyl on the a-face of the molecule proved detrimental. Taken together, these observations identified the substitution at C-8/C-9 as critical for activity.


  • Organic Chemistry


  • ISSN: 0163-3864
Olov Sterner
E-mail: olov [dot] sterner [at] science [dot] lu [dot] se


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