Fatma M Abdel Bar

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
Ten compounds have been isolated from the unused parts of Ammi visinaga. The isolated compounds were identified as tetracosanoic acid (1), β-sitosterol (2), visnadine (3), khellin (4), β-sitosterol glucoside (5), norkhellol (6), khellol (7), rhamnazin (8), cimifugin (9), and cis-khellactone-3’-β-glucopyranoside (10). The chemical structures of these(More)
Chemical transformation studies were conducted on betulinic acid (1), a common plant-derived lupane-type triterpene. Eleven new rationally designed derivatives of 1 (2-5 and 7-13) were synthesized based on docking studies and tested for their topoisomerase I and IIalpha inhibitory activity. Semisynthetic reactions targeted C-3, C-20, and C-28 in 1.(More)
Biotransformation of khellin using Aspergillus niger ATCC 10549 resulted in the production of khellol. The biological activities of the transformed product and khellin were established by antioxidant and acetylcholine esterase inhibitory assays. Khellol exhibited a higher degree of antioxidant and acetylcholine esterase inhibitory activities compared to(More)
  • 1