Abstract
A new pentacyclic triterpenoid, 3α-(3′′,4′′-dihydroxy-trans-cinnamoyloxy)-D-friedoolean-14-en-28-oic acid (1) has been isolated along with two known compounds, rhamnocitrin (2) and isorhamnetin (3) from the aerial parts of Tamarix hispida Willd. Compound 1 was found to be a potent antioxidant. In addition, compounds 1 - 3 showed significant inhibitory activity against prolylendopeptidase (PEP).
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Prof. M. Iqbal Choudhary
HEJ Research Institute of Chemistry
University of Karachi
Karachi-75270
Pakistan
Fax: +9221 9243190, 9243191
Email: hej@cyber.net.pk
