scholarly journals Methylation of 2-Aryl-2-(3-indolyl)acetohydroxamic Acids and Evaluation of Cytotoxic Activity of the Products

Molbank ◽  
10.3390/m1307 ◽  
2021 ◽  
Vol 2022 (1) ◽  
pp. M1307
Author(s):  
Dmitrii A. Aksenov ◽  
Alexander V. Aksenov ◽  
Lidiya A. Prityko ◽  
Nicolai A. Aksenov ◽  
Liliya V. Frolova ◽  
...  

2-Aryl-2-(3-indolyl)acetohydroxamic acids demonstrate promising antitumor activity, but quickly metabolize in vivo via glucuronidation of hydroxamic acid residue. In an attempt to improve their pharmacokinetics, methyl esters were synthesized via a newly developed protocol for chemoselective mono-methylation of hydroxamic acids. The cytotoxicity of these derivatives against the HeLa cell line was evaluated and found to be inferior compared to the parent lead compounds.

RSC Advances ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 5282-5296 ◽  
Author(s):  
Marija S. Jeremić ◽  
Hubert Wadepohl ◽  
Vesna V. Kojić ◽  
Dimitar S. Jakimov ◽  
Ratomir Jelić ◽  
...  

Two new Rh(iii)–ed3a complexes [Rh(ed3a)(OH2)]·H2O and Na[Rh(ed3a)Cl]·H2O have shown good antitumor activity, especially against HeLa cell line.


2018 ◽  
Author(s):  
◽  
Kola Augustus Oluwafemi

This work focuses on the design, synthesis and evaluation of imine-containing heterocyclic and acyclic compounds with special focus on their bioactivity against parasitic protozoans (P. falciparum and T. brucei) - given the context of drug resistance in the treatment of malaria and Human African sleeping sickness and the fact that several bioactive organic compounds have been reported to possess the imino group. Starting from 2-aminopyridine, novel #-alkylated-5-bromo-7-azabenzimidazoles and substituted 5-bromo-1-(carbamoylmethy)-7-azabenzimidazole derivatives were prepared, and their bioactivity against parasitic protozoans was assessed. NMR spectra of the substituted 5- bromo-1-(carbamoylmethy)-7-azabenzimidazole derivatives exhibited rotational isomerism, and a dynamic NMR study was used in the estimation of the rate constants and the free- energies of activation for rotation. The free-energy differences between the two rotamers were determined and the more stable conformations were predicted. Novel 2-phenyl-7-azabenzimidazoles were also synthesised from 2-aminopyridine. A convenient method for the regioselective formylation of 2,3-diaminopyridines into 2-amino- 7-(benzylimino)pyridine analogues of 2-phenyl-7-azabenzimidazole was developed, and some of the resulting imino derivatives were hydrogenated to verify the importance of the imino moiety for bioactivity. The 2-phenyl-7-azabenzimidazoles and the 2-amino-7- (benzylimino)pyridine analogues were screened for their anti-protozoal activity and their cytotoxicity level was determined against the HeLa cell line. In order to validate the importance of the pyridine moiety, novel #-(phenyl)-2- hydroxybenzylimines, #-(benzyl)-2-hydroxybenzylimines and (±)-trans-1,2-bis[2- hydroxybenzylimino]cyclohexanes were also synthesized and screened for activity against the parasitic protozoans and for cytotoxicity against the HeLa cell line. The biological assay results indicated that these compounds are not significantly cytotoxic and a good number of them show potential as lead compounds for the development of new malaria and trypanosomiasis drugs.


2014 ◽  
Vol 9 (12) ◽  
pp. 1934578X1400901
Author(s):  
Uppuluri V. Mallavadhani ◽  
Banita Pattnaik ◽  
Nitasha Suri ◽  
Ajit K. Saxena

Ursolic acid (1), a natural pentacyclic triterpenic acid, afforded a variety of ring-C transformed products (5–11) when treated with N-bromosuccinimide under the influence of a range of protective groups and solvents. The synthesized compounds have been evaluated for cytotoxic activity against prostate PC 3, leukemia THP 1, cervical Hela and lung A-549 cancer cell lines. Among the tested analogs, compounds 5, 8, 9 and 10 showed potent activity against PC 3, THP 1 and Hela cell lines. Especially, compound 10 showed enhanced activity against the Hela cell line than the parent compound. Compounds 5, 8 and 9 showed comparable activities against PC 3 and THP 1 cell lines.


Author(s):  
Qing-Yun Lu ◽  
Jia-Hui Zhang ◽  
Ying-Yao Li ◽  
Xue-Xue Pu ◽  
Cui-Shan Zhang ◽  
...  

AbstractOne new Daphniphyllum alkaloid, daphnioldhanol A (1), together with three known ones, were isolated from the stem part of Daphniphyllum angustifolium Hutch. Their structures were elucidated by spectroscopic methods and comparing with the literature data. Compound 2 is a new natural product, but known by synthesis as a racemate. Compound 1 exhibited week cytotoxic activity against Hela cell line with IC50 of 31.9 μM. Graphic Abstract


2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Adisty Ridha Damasuri ◽  
Eti Nurwening Sholikhah ◽  
Mustofa

In our previous study, some amino chalcone derivatives have been synthesized and evaluated their cytotoxicity against breast cancer cell line T47D. Among 11 amino chalcone derivatives, ((E)-1-(4-aminophenyl)-3-phenylprop-2-en-1-one)) exhibited the most active compound.This study aimed to investigate cytotoxic activity of the ((E)-1-(4-aminophenyl)-3-phenylprop-2-en-1-one)) against cervical cell line (HeLa). The cytotoxic activitywas determined using the MTT colorimetric assay. Cisplatin was used as positive control. From this MTT method, inhibitory concentration 50% (IC50) values were determined by probit analysis based on the relationship between log concentrations versus the percentage of cells growth inhibition.The results showed that the IC50 of ((E)-1-(4-aminophenyl)-3-phenylprop-2-en-1-one)) and cisplatinwere 22.75 ± 19.13 μg/mL and 14.96±1.08 μg/mL, respectively. In conclusion, the ((E)-1-(4-aminophenyl)-3-phenylprop-2-en-1-one)) has moderate cytotoxic activity against HeLa cell line based on National Cancer Institute (NCI) criteria.


Toxicology ◽  
2009 ◽  
Vol 257 (1-2) ◽  
pp. 80-85 ◽  
Author(s):  
Hua-Nan Li ◽  
Fei-Fei Nie ◽  
Wei Liu ◽  
Qin-Sheng Dai ◽  
Na Lu ◽  
...  

2018 ◽  
Vol 2 (3) ◽  
pp. 122-125 ◽  
Author(s):  
Gujjula Nishitha ◽  
◽  
Gurram Asha Latha ◽  
Lagadapati Tejaswini ◽  
Amrutha Mounica ◽  
...  

2016 ◽  
Vol 4 (5) ◽  
pp. 1258-1267 ◽  
Author(s):  
Shivangi Mathur ◽  
◽  
Rinkal Mulani ◽  
L.B. George ◽  
Chiranjivi Barot ◽  
...  

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