Schiff bases of 3-formylchromone as thymidine phosphorylase inhibitors
作者:Khalid Mohammed Khan、Nida Ambreen、Sajjad Hussain、Shahnaz Perveen、M. Iqbal Choudhary
DOI:10.1016/j.bmc.2009.03.020
日期:2009.4
3-Formylchromone (1), 3-methyl-7-hydroxychromone (2) and Schiff bases of 3-formylchromone 3-19 have been synthesized and their anti-thymidine phosphorylase inhibitory activity was evaluated. Compounds 1-19 showed a varying degree of thymidine phosphorylase inhibition with IC50 values 19.77 +/- 3.25 to 480.21 +/- 2.34 mu M. Their activity was compared with the standard 7-deazaxanthine (IC50 = 39.28 +/- 0.76 mu M). Compound 12 showed an excellent thymidine phosphorylase inhibitory activity with an IC50 value of 19.77 +/- 3.25 mu M, better than the standard. Compound 4 also showed an excellent inhibitory activity (IC50 = 40.29 +/- 4.56 mu M). The parent 3-formylchromone (1) and 3-methyl-7-hydroxychromone (2) were found to be inactive. The structures of the compounds were elucidated by using spectroscopic techniques, including H-1 NMR, EI MS, IR, UV and elemental analysis. (C) 2009 Elsevier Ltd. All rights reserved.
作者:Khalid M. Khan、Nida Ambreen、Uzma Rasool Mughal、Saima Jalil、Shahnaz Perveen、M. Iqbal Choudhary
DOI:10.1016/j.ejmech.2010.05.065
日期:2010.9
3-formylchromone (1) and its derivatives 2–24 and evaluation of their potentialantiinflammatory activities is reported here. These compounds were characterized by 1H NMR, EI MS, IR, and UV spectroscopic techniques and elemental analysis. The synthesized compounds were evaluated by using various in vitro and in vivo assay models for antiinflammatory activity and their effects were compared with known standard