Design and synthesis of a new series of 3,5-disubstituted-1,2,4-oxadiazoles as potential colchicine binding site inhibitors: antiproliferative activity, molecular docking, and SAR studies
作者:Rana T. Diab、Zakaria K. Abdel-Sami、Eatedal H. Abdel-Aal、Ahmed A. Al-Karmalawy、Nader E. Abo-Dya
DOI:10.1039/d1nj02885e
日期:——
The development of anticancer compounds targeting the colchicine-binding site of tubulin, termed colchicine-binding site inhibitors (CBSIs) is a promising research area for pharmaceutical companies and research institutes. A series of 3,5-disubstituted 1,2,4-oxadiazoles, sharing common structural features with colchicine and combretastatins, was designed and synthesized for screening as antiproliferative
N-Acylbenzotriazole: convenient approach for protecting group-free monoacylation of symmetric diamines
作者:Khalid A. Agha、Nader E. Abo-Dya、Tarek S. Ibrahim、Eatedal H. Abdel-Aal、Zakaria K. Abdel-Samii
DOI:10.1007/s00706-020-02579-5
日期:2020.4
AbstractAn efficient green route for monoacylation of aromatic diamines, namely o-phenylenediamine and p-phenylenediamine and aliphatic diamines ethylenediamine and piperazine using N-acylbenzotriazoles (NABs) in n-butanol was developed. The new protocol does not require prior selective protection of the diamine and comprises simple conditions, short reaction times, an easy work up as well as high
An Efficient Greener Approach for N-acylation of Amines in Water Using Benzotriazole Chemistry
作者:Tarek S. Ibrahim、Israa A. Seliem、Siva S. Panda、Amany M. M. Al-Mahmoudy、Zakaria K. M. Abdel-Samii、Nabil A. Alhakamy、Hani Z. Asfour、Mohamed Elagawany
DOI:10.3390/molecules25112501
日期:——
straightforward, mild and cost-efficient synthesis of various arylamides in water was accomplished using versatile benzotriazole chemistry. Acylation of various amines was achieved in water at room temperature as well as undermicrowaveirradiation. The developed protocol unfolds the synthesis of amino acid aryl amides, drug conjugates and benzimidazoles. The environmentally friendly synthesis, short reaction
Discovery of novel quinoline-based analogues of combretastatin A-4 as tubulin polymerisation inhibitors with apoptosis inducing activity and potent anticancer effect
作者:Tarek S. Ibrahim、Mohamed M. Hawwas、Azizah M. Malebari、Ehab S. Taher、Abdelsattar M. Omar、Thikryat Neamatallah、Zakaria K. Abdel-Samii、Martin K. Safo、Yaseen A. M. M. Elshaier
DOI:10.1080/14756366.2021.1899168
日期:2021.1.1
cells. These results provide guidance for further rational development of potent tubulin polymerisation inhibitors for the treatment of cancer. Highlights A novel series of quinoline derivatives of combretastatin A-4 have been designed and synthesised. Compound 12c showed significant antiproliferative activities against different cancer cell lines. Compound 12c effectively inhibited tubulin polymerisation
Twenty-one benzotriazoles (3-16 and 18-24) were synthesized and half of them (5, 8-16, 20, and 21) were reported for the first time. Their antiproliferative activities against three human cancer cells were assayed. It revealed that 1H-benzo[d][1,2,3] triazol-1-yl 3,4,5-trimethoxybenzoate (9) showed considerable activity against three human cancer cell lines with the half maximal inhibitory concentration (IC50) values of 1.2-2.4 nM, which were close to the value of the positive control, doxorubicin. Further investigation indicated compound 9 was a potential histone deacetylase inhibitor (IC50 = 9.4 mu M) and its binding mode was simulated using docking method. (C) 2010 Elsevier Ltd. All rights reserved.