QSAR STUDIES, SYNTHESIS AND BIOLOGICAL EVALUATION OF PYRAZOLE DERIVATIVES CONTAINING THIOUREA AS TYROSINE KINASE INHIBITORS: AN APPROACH TO DESIGN ANTICANCER AGENTS

A series of pyrazole derivatives designing for potential EGFR kinase inhibitors have been discovered. Some of them exhibited significant EGFR inhibitory activity. Compound 3-(4-Amino-phenyl)-5-(3-nitro-phenyl)-4, 5-dihydro-pyrazole- 1 -carbothioic acid amide (AP-2) displayed the most potent EGFR inhibitory activity. The QSAR analysis of a set of these compounds tested for growth inhibitory activity against EGFR were performed by using the computer-assisted multiple regression procedure. The activity contributions for substituent effects of these compounds were determined from the correlation equation for predictions of the lead optimization. QSAR analysis of these compounds was performed by multiple regression analysis in order to predict the lead optimization for anticancer activity against EGFR.