| Abstrakt: |
A chemical study on tissue cultures from leaves and flowers of E. camaldulensisDehnh. afforded the new natural product 2?,3?2,3,23trihydroxy13,28epoxyurs11en28one dryobalanolide together with the known pentacyclic triterpenoids: betulinic acid, oleanolic acid, ursolic acid, 2?,3?2,3,23trihydroxyolean12en28oic acid arjunolic acid, 2?,3?2,3,23trihydroxyurs12en28oic acid asiatic acid, 2?2hydroxyursolic acid, 2?2hydroxyoleanolic acid maslinic acid, as well as ?sitosterol. The extracts and the isolated compounds were evaluated against eleven human pathogenic microorganisms, exhibiting a very interesting antibacterial spectrum of activities. [ABSTRACT FROM AUTHOR] |
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