The triterpenoid quinonemethides constitute a relatively small group of unsaturated and oxygenated D:A-friedo-nor-oleananes. In nature these nor-triterpenoid pigments are found restricted to the higher plant family, Celastraceae (including Hippocrateaceae; see Sect. 4.1). For this reason, BrüNing and Wagner (10) coined the general name “celastroloids” for this class of compounds, and in this review, this term is used exclusively for all natural triterpenoid quinonemethides and their structural relatives. Celastroloids usually co-occur with other triterpenoid types like the D:A-friedo-oleananes and lupanes. Despite their structural complexity and interesting biological activities, no comprehensive review devoted specifically to celastroloids has appeared to date. However, mention has been made of celastroloids in general reviews and handbooks dealing with other triterpenoid types (1, 26,108,123) terpenoids and steroids of Sri Lankan plants (80), constituents and phytochemistry of Celastraceae (10, 63, 70, 109), triterpene phenoldienones (110), phenoHc triterpenoids of Sri Lankan Celastraceae (42, 84), and natural quinonemethides (16, 143, 144), Since approximately 70 celastroloids are presently known, a review devoted entirely to these is now appropriate.


Structure Elucidation Nuclear Magnetic Resonance Spectroscopy Nuclear Magnetic Resonance Technique Tripterygium Wilfordii Mass Spectrometric Fragmentation 
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Copyright information

© Springer-Verlag/Wien 1996

Authors and Affiliations

  • A. A. Leslie Gunatilaka
    • 1
  1. 1.Department of ChemistryVirginia Polytechnic Institute and State UniversityBlacksburgUSA

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