In silico binding analysis and SAR elucidations of newly designed benzopyrazine analogs as potent inhibitors of thymidine phosphorylase
作者:Muhammad Taha、Nor Hadiani Ismail、Syahrul Imran、Fazal Rahim、Abdul Wadood、Laode Muhammad Ramadhan Al Muqarrabun、Khalid Mohammed Khan、Mehreen Ghufran、Muhammad Ali
DOI:10.1016/j.bioorg.2016.07.010
日期:2016.10
Thymidine phosphorylase (TP) is up regulated in wide variety of solid tumors and therefore presents a remarkable target for drug discovery in cancer. A novel class of extremely potent TPase inhibitors based on benzopyrazine (1-28) has been developed and evaluated against thymidine phosphorylase enzyme. Out of these twenty-eight analogs eleven (11) compounds 1, 4, 14, 15, 16, 17, 18, 19, 20, 24 and 28 showed potent thymidine phosphorylase inhibitory potentials with IC50 values ranged between 3.20 +/- 0.30 and 37.60 +/- 1.15 mu M when compared with the standard 7-Deazaxanthine (IC50 = 38.68 +/- 4.42 mu M). Structure-activity relationship was established and molecular docking studies were performed to determine the binding interactions of these newly synthesized compounds. Current studies have revealed that these compounds established stronger hydrogen bonding networks with active site residues as compare to the standard compound 7DX. (C) 2016 Elsevier Inc. All rights reserved.