19205-70-0Relevant academic research and scientific papers
Synthesis, in silico Study and Antileishmanial Evaluation of New Selenides Derived from 7-Chloro-quinoline and N-Phenylacetamides
Huang, Min-Fu N.,Luis, José A.S.,da Silva, Alison P.,Rocha, Juliana C.,Lima, Tatjana K.S.,Scotti, Marcus T.,Scotti, Luciana,de Oliveira, Rafael F.,Souza, Helivaldo D.S.,de Athayde-Filho, Petr?nio F.,Barbosa-Filho, José M.
, p. 712 - 721 (2021/03/17)
This study describes a virtual screening performed for two series of selenides (28 compounds), derived from N-phenylacetamides chlorides and 7-chloro-quinoline, to determine their potential for leishmanicidal activity against Leishmania amazonensis and Leishmania donovani. Seven compounds were predicted as potential leishmanicides; therefore, they were synthesized from elemental selenium, as a precursor for the production of NaHSe, and subsequent reactions with 4,7-dichloro-quinoline and N-phenylacetamides chlorides were performed. The compounds were characterized by infrared (IR), 1H and 13C nuclear magnetic resonance (NMR), and sent for in vitro cytotoxicity tests against L. amazonensis and were found to be active and selective, and two compounds presented half-maximal inhibitory concentrations (IC50) of 5.67 and 10.81 μg mL-1. They also presented good interaction energies in the docking study, suggesting that may exert their effects by inhibiting the N-myristoyltransferase and O-acetylserine sulfhydrylase enzymes in parasites.
Unravelling the anticancer potency of 1,2,4-triazole-N-arylamide hybrids through inhibition of STAT3: synthesis and in silico mechanistic studies
Turky, Abdallah,Bayoumi, Ashraf H.,Sherbiny, Farag F.,El-Adl, Khaled,Abulkhair, Hamada S.
, p. 403 - 420 (2020/08/25)
Abstract: The discovery of potent STAT3 inhibitors has gained noteworthy impetus in the last decade. In line with this trend, considering the proven biological importance of 1,2,4-triazoles, herein, we are reporting the design, synthesis, pharmacokinetic profiles, and in vitro anticancer activity of novel C3-linked 1,2,4-triazole-N-arylamide hybrids and their in silico proposed mechanism of action via inhibition of STAT3. The 1,2,4-triazole scaffold was selected as a privilege ring system that is embedded in core structures of a variety of anticancer drugs which are either in clinical use or still under clinical trials. The designed 1,2,4-triazole derivatives were synthesized by linking the triazole-thione moiety through amide hydrophilic linkers with diverse lipophilic fragments. In silico study to predict cytotoxicity of the new hybrids against different kinds of human cancer cell lines as well as the non-tumor cells was conducted. The multidrug-resistant human breast adenocarcinoma cells (MDA-MB-231) was found most susceptible to the cytotoxic effect of synthesized compounds and hence were selected to evaluate the in vitro anticancer activity. Four of the designed derivatives showed promising cytotoxicity effects against selected cancer cells, among which compound 12 showed the highest potency (IC50 = 3.61?μM), followed by 21 which displayed IC50 value of 3.93?μM. Also, compounds 14 and 23 revealed equipotent activity with the reference cytotoxic agent doxorubicin. To reinforce these observations, the obtained data of in vitro cytotoxicity have been validated in terms of ligand–protein interaction and new compounds were analyzed for ADMET properties to evaluate their potential to build up as good drug candidates. This study led us to identify two novel C3-linked 1,2,4-triazole-N-arylamide hybrids of interesting antiproliferative potentials as probable lead inhibitors of STAT3 with promising pharmacokinetic profiles. Graphic abstract: [Figure not available: see fulltext.]
Synthesis of some 1,2,4-triazoles as potential anti-tubercular agents
Vijayaraghavan,Shirodkar
, p. 1149 - 1153 (2015/09/28)
A series of 5-(N-substituted carboxamidoethylthio)-3-(3'pyridyl)-4- amino-1,2,4-triazole derivatives 6a-j have been synthesized and evaluated for anti-tubercular activity. They are screened in-vitro at 10μg/mL concentration against Mycobacterium tuberculosis H37RV (ATCC 27294). All the compounds are showing antitubercular activity when compared with the standard drug Amikacin. Compounds 6e and 6h are found active as they displayed IC50 and IC90 values at 100μg/mL.
Design and synthesis of new 8-anilide theophylline derivatives as bronchodilators and antibacterial agents
Hayallah, Alaa M.,Talhouni, Ahmad A.,Abdel Alim, Abdel Alim M.
, p. 1355 - 1368 (2013/01/15)
Theophylline derivatives have long been recognized as potent bronchodilators for the relief of acute asthma. Recently, it was found that bacterial infection has a role in asthma pathogenesis. The present work involves the design and synthesis of 8-substituted theophylline derivatives as bronchodilators and antibacterial agents. The chemical structures of these compounds were elucidated by IR, 1H-NMR, mass spectrometry, and elemental analyses. The bronchodilator activity was evaluated using acetylcholine-induced bronchospasm in guinea pigs, and most of the compounds showed significant anti-bronchoconstrictive activity in comparison with standard aminophylline. In addition, the antibacterial activity of all the target compounds was investigated in vitro against Gram-positive and Gram-negative bacteria using ampicillin as a reference drug. Results showed that some of the tested compounds possessed significant antibacterial activity. A pharmacophore model was computed to obtain useful insight into the essential structural features of bronchodilator activity. A structure activity relationship was also discussed.
