Design, synthesis and in vitro anti-proliferative activity of 4,6-quinazolinediamines as potent EGFR-TK inhibitors
作者:Samar Mowafy、Nahla A. Farag、Khaled A.M. Abouzid
DOI:10.1016/j.ejmech.2012.10.017
日期:2013.3
4-Anilino-6-substituted-quinazolines were designed, synthesized and evaluated for EGFR-TK and tumor growth inhibitory activities. The target compounds were designed with enamine ester or urea moieties appended at the C-6 of quinazoline as additional hydrogen bond acceptor functions. Most of the synthesized compounds displayed potent EGFR-TK inhibitory activity at 10 mu M and the 6-ureido-anilinoquinazoline derivative 7a showed IC50 value of 0.061 mu M. Moreover, six compounds were tested by National Cancer Institute (NCI), USA for their anti-proliferative activity at 10 mu M in full NCI 60 cell panel. Compound 7a was further assayed for five dose molar ranges in full NCI 60 cell panel and exhibited remarkable growth inhibitory activity pattern against Non-Small Cell Lung Cancer EKVX (GI(50) = 037 mu M), NCI-H322M (GI(50) = 0.36 mu M), Renal Cancer A498 (GI(50) = 0.46 mu M), TK-10 (GI(50) = 0.99 mu M) and Breast Cancer MDA-MB-468 (GI(50) = 1.096 mu M) which are of high EGFR expression. Docking study was performed for the active compounds into ATP binding site of EGFR-TK which showed similar binding mode to gefitinib and additional binding with Cys-773 at the gatekeeper of EGFR-TK enzyme. (C) 2012 Elsevier Masson SAS. All rights reserved.
4-Arylamino-6-nitroquinazolines: Synthesis and their activities against neglected disease leishmaniasis
作者:Syed Muhammad Saad、Nida Ghouri、Shahnaz Perveen、Khalid Mohammed Khan、M. Iqbal Choudhary
DOI:10.1016/j.ejmech.2015.11.016
日期:2016.1
4-Arylamino-6-nitroquinazolines (2-25) were synthesized and evaluated for their leishmanicidal activities against Leishmania major promastigotes in vitro with IC50 values = 1.87-61.48 mu M. Among the twenty four synthetic derivatives, 4-[4'-(methylsulfanyl)phenyljamino-6-nitroquinazoline (21), and 4-(2'-methoxyphenyl)amino-6-nitroquinazoline (8) showed excellent antileishmanial activities with IC50 values 1.87 +/- 0.31 and 437 +/- 0.02 mu M, respectively, more active than the standard drug, pentamidine (IC50 = 5.09 +/- 0.09 mu M). Compound 16 (IC50 = 6.53 +/- 0.21 mu M) displayed an activity comparable to the standard. Compounds 15 (IC50 = 9.04 +/- 0.03 mu M), 18 (IC50 = 12.28 +/- 0.18 mu M),14 (IC50 = 19.87 +/- 0.22 mu M), and 5 (IC50 = 24.03 +/- 2.71 mu M) also showed good activities. (C) 2015 Elsevier Masson SAS. All rights reserved.
First Bispecific Inhibitors of the Epidermal Growth Factor Receptor Kinase and the NF-κB Activity As Novel Anticancer Agents
作者:Mostafa M. Hamed、Sarah S. Darwish、Jennifer Herrmann、Ashraf H. Abadi、Matthias Engel
DOI:10.1021/acs.jmedchem.6b01774
日期:2017.4.13
0.3 μM while retaining a potentEGFR kinase inhibition (IC50 = 60 nM). The dual inhibitors showed a higher potency than gefitinib to inhibitcell growth of EGFR-overexpressing tumorcelllines in vitro and in a xenograft model in vivo, while no signs of toxicity were observed. An investigation of the molecular mechanism of NF-κB suppression revealed that the dual inhibitors depleted the transcriptional