Related Experiment Videos
Triterpenoidal constituents from Eucalyptus camaldulensis var. obtusa leaves
B S Siddiqui1, I Sultana, S Begum
1H. E. J. Research Institute of Chemistry, University of Karachi, Pakistan.
Phytochemistry
|October 3, 2000
Abstract:
An investigation on the constituents of the fresh, uncrushed leaves of Ecalyptus camaldulensis var. obtusa has led to the isolation of the triterpenoid amirinic acid and four known triterpenoids ursolic acid lactone, betulinic acid, oleanolic acid and ursolic acid. Amirinic acid transformed into amirolide in deuterated chloroform at room temperature. The new products were characterized by exhaustive spectroscopic studies as 2alpha,3beta,7beta-trihydroxy-11alpha-methoxyurs -12-en-28-oic acid and 2alpha,3beta,7beta-trihydroxyurs-11-en-28,13beta -olide.