Facile Synthesis of N-Phenyl Benzamidine Derivatives, Their Skin Protecting, and Anti-Aging Activity
作者:M. B. Taj、S. A. Tirmizi、A. Raheel、W. Alelwani、D. Hajjar、A. A. Makki、U. Ali、M. Darroudi、H. B. M. Ali
DOI:10.1134/s1070363218110270
日期:2018.11
The straight forwarded new green approach to the synthesis of N-phenyl benzamidine derivatives catalyzed by copper oxide nanoparticles (CuOnp) under solvent-free conditions (without microwave radiations and with MW radiation) is presented. All synthesized compounds 3a-3k are characterized by FT-IR, NMR, and single crystal XRD analysis and tested for their antioxidant and elastase inhibition activities. The compounds 3i and 3j demonstrate significant free radical scavenging activity. The accumulated data indicate that some synthesized compounds can be recognized as good anti-aging agents.
One-Pot CuO-Catalyzed Green Synthesis of N(N′)-Arylbenzamidines as Potential Enzyme Inhibitors
作者:M. B. Taj、A. Raheel、W. Alelwani、N. Babteen、S. Kattan、A. Alnajeebi、M. Sharif、R. H. Ahmad、Abbas、A. Hazeeq、S. A. Tirmizi、H. B. M. Ali
DOI:10.1134/s1070428019070224
日期:2019.7
Ten N(N ')-arylbenzamidines were synthesized in 60-77% yield by one-pot microwave-assisted reaction of the corresponding N-arylbenzamides with aniline or ammonia in the presence of copper(II) oxide powder. The synthesized compounds were evaluated in vitro for inhibitory activity against several enzymes, namely acetylcholinesterase, butyrylcholinesterase, lipoxygenase, alpha-glucosidase, urease, and reverse transcriptase. Some compounds showed very good acetylcholinesterase and butyrylcholinesterase inhibitory activity. N '-(1,3-Benzothiazol-2-yl)- and N '-(1,3,4-thiadiazol-2-yl)benzamidines were the most active alpha-glucosidase inhibitors with IC50 values of 134.2 and 244.57 mu M, respectively. N '-(1,3-Benzothiazol-2-yl)benzamidine also inhibited urease. Most of the obtained compounds showed inhibitory activity against reverse transcriptase (anti-HIV activity), presumably due to intermolecular hydrogen bonding, good solubility, and hydrophilicity.