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Triterpenoids from Eucalyptus camaldulensisDehnh. Tissue Cultures

✍ Scribed by Dimitroula Tsiri; Nektarios Aligiannis; Konstantia Graikou; Caroline Spyropoulos; Ioanna Chinou

Publisher
John Wiley and Sons
Year
2008
Tongue
German
Weight
165 KB
Volume
91
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

A chemical study on tissue cultures from leaves and flowers of E. camaldulensis Dehnh. afforded the new natural product (2__α__,3__β__)‐2,3,23‐trihydroxy‐13,28‐epoxyurs‐11‐en‐28‐one (dryobalanolide) together with the known pentacyclic triterpenoids: betulinic acid, oleanolic acid, ursolic acid, (2__α__,3__β__)‐2,3,23‐trihydroxyolean‐12‐en‐28‐oic acid (arjunolic acid), (2__α__,3__β__)‐2,3,23‐trihydroxyurs‐12‐en‐28‐oic acid (asiatic acid), (2__α__)‐2‐hydroxyursolic acid, (2__α__)‐2‐hydroxyoleanolic acid (maslinic acid), as well as β‐sitosterol. The extracts and the isolated compounds were evaluated against eleven human pathogenic microorganisms, exhibiting a very interesting antibacterial spectrum of activities.

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