77083-80-8Relevant academic research and scientific papers
Design and synthesis of novel ribofuranose nucleoside analogues as antiproliferative agents: A molecular docking and DFT study
Atay, ?i?dem Karabacak,Tilki, Tahir,Dede, Bülent
, p. 315 - 326 (2018/08/21)
The new analogues of ribofuranose fused heterocyclic compounds were synthesized a series of diazotization, cyclization, coupling and hydrolysis reactions and structures were characterized by spectroscopic methods. To explain the spectroscopic properties in detail, such as molecular geometric parameters, vibrational wavenumbers, HOMO-LUMO energies, 1H NMR chemical shift values and electronic transitions, density functional theory (DFT) calculations were used. The structural and spectroscopic data of the molecules in the ground state were calculated by DFT using B3LYP functional with 6-311G(d,p) basis set. Isotropic chemical shifts were calculated using the gauge-invariant atomic orbital (GIAO) method. Furthermore molecular docking (ligand–protein) simulations were performed to obtain antiproliferative activity of the synthesized ribofuranose nucleoside analogues against epidermal growth factor receptor and vascular endothelial growth factor receptor 2. Full fitness score and binding energy length values revealed that studied three compounds can act as potential inhibitor against selected receptors.
Synthesis, antimicrobial, antiquorum-sensing and cytotoxic activities of new series of benzothiazole derivatives
Gabr, Moustafa T.,El-Gohary, Nadia S.,El-Bendary, Eman R.,El-Kerdawy, Mohamed M.,Ni, Nanting,Shaaban, Mona I.
supporting information, p. 1522 - 1528 (2015/12/23)
New series of benzothiazole derivatives were designed and synthesized. The newly synthesized compounds were screened for their antibacterial activity against Escherichia coli, Staphylococcus aureus and Bacillus cereus. Compounds 6j and 6o showed the highest activity against E. coli and S. aureus. The antifungal activity of these compounds was also tested against Candida albicans and Aspergillus fumigatus 293. Compounds 4c, 4g and 6j exhibited the highest activity against C. albicans. In addition, compounds 4a and 6j displayed promising activity against A. fumigatus 293. The same compounds were examined for their antiquorum-sensing activity against Chromobacterium violaceum ATCC 12472, whereas compounds 4a, 6j and 6p showed moderate activity. The in vitro cytotoxicity testing of the synthesized compounds was performed against cervical cancer (Hela) and kidney fibroblast cancer (COS-7) cell lines. Results indicated that all tested compounds have IC50 values >50 μmol/L against both cell lines. Molecular properties, toxicities, drug-likeness, and drug score profiles of compounds 4a-c, 5a, 6g,h, 6j, 6l, 6o and 7c,d were also assessed.
Synthesis and antidiabetic evaluation of novel pyrazolone derivatives
Kumar, M. Vijay,Revanasiddappa
, p. 169 - 172 (2019/01/16)
Ethyl-2-[diazo(substituted benzene) acetoacetates (2a-h) were treated with benzhydrazide (3) to yield the title compounds pyrazolone derivatives (4a-h). All the new compounds were characterized by IR, 1H-NMR, Mass and elemental analysis. The title compounds were subjected to in-vitro antidiabetic activity by α-amylase and α-glucosidase inhibitory activity. Compounds 4b and 4c showed good antidiabetic activity when compared to the standard drug acarbose.
Microwave assisted synthesis and biological activity of 4-(2-(aryl substituted) hydrazono)-1-(2-(p-tolyloxyacetyl)-3-methyl-1H-pyrazol- 5-one
Jois, H.S. Vidyashree,Kalluraya, Balakrishna,Babu,Bhagya,Chandrashekar
, p. 7 - 10 (2019/01/21)
A novel series of 4-(2-(aryl substituted) hydrazono)-1-(2-(p-tolyloxy) acetyl)-3-methyl- 1H-pyrazol-5-ones 3(a-j) was prepared by the reaction of ethyl-2-arylhydrazono -3- oxobutyrate and p-tolyloxyacethydrazide under microwave irradiation. The structures of the synthesized compounds were established by their spectral and analytical data. All the new compounds were screened for their antibacterial and antifungal activity.
Type II diabetes-related enzyme inhibition and molecular modeling study of a novel series of pyrazolone derivatives
Shetty, Shobhitha,Kalluraya, Balakrishna,Nithinchandra,Peethambar,Telkar, Sandeep B.
, p. 2834 - 2846 (2014/05/06)
Inhibitors of alpha-Amylase are targets for the development of novel drugs for the treatment of diabetes and obesity. Alpha amylase is an enzyme which increases the bio availability of glucose in the blood. Hence, the inhibition effects of alpha amylase of 2-[1-(4-isobutylphenyl)ethyl]-5-methyl-4-[2-(aryl- substituted)hydrazinylidene]-2,4-dihydro-3H-pyrazol-3-one (4a-l) were investigated, among them compounds 4d, 4f, 4a, and 4g have displayed good inhibitory activity. The compounds with significant results were further evaluated for their molecular modeling study using in silico method. The new series of compounds were synthesized by solvent-free microwave irradiation method and were characterized by spectral and analytical data.
Synthesis and antibacterial activity of some novel 4-aryl hydrazono-2,5-disubstituted-2,4-dihydro-3H-pyrazol-3-ones
Singh, Vipin Kumar
, p. 429 - 432 (2019/01/21)
4-Aryl hydrazono-2,4-dihydro-3H-pyrazol-2,5-disubstituted-3-ones were prepared by the reaction of ethyl-2-arylhydrazono-3-oxybutyrates with substituted hydrazines in the presence of glacial acetic acid at reflux temp. The synthesized compounds have been c
Phenyl hydrazone bearing pyrazole and pyrimidine scaffolds: Design and discovery of a novel class of non-nucleoside reverse transcriptase inhibitors (NNRTIs) against HIV-1 and their antibacterial properties
Singh, Udaya Pratap,Bhat, Hans Raj,Verma, Amita,Kumawat, Mukesh Kumar,Kaur, Rajinder,Gupta,Singh, Ramendra K.
, p. 17335 - 17348 (2013/09/24)
A novel series of phenyl hydrazone bearing pyrazole and pyrimidine hybrid compounds has been designed using the molinspiration toolkit based on Lipinski's rule of five and developed via sequential reactions starting from the diazotization of different anilines and further active methylation with acetyl acetone, ethyl acetoacetate and ethyl cyanoacetate to generate hydrazono derivatives. The target hybrid compounds were synthesized on cyclisation of the resulting hydrazono derivatives with hydrazine, phenyl hydrazine and urea. These molecules have been subsequently tested for anti-HIV activity using TZM-bl cell lines. The MTT assay was also carried out for the cytotoxicity determination of the active compounds. Further, to exemplify the key structural features of the molecules, a molecular docking analysis of the most active compounds was performed at the NNIBP of the HIV-RT protein. The antibacterial activity of the target compounds was also determined against a panel of four Gram-positive and four Gram-negative human pathogens. All molecules showed a potent anti-HIV activity along with a prominent inhibition of bacterial organisms.
Synthesis and bio-evaluation of aryl hydrazono esters for oviposition responses in Aedes albopictus
Bandyopadhyay, Prabal,Guha, Lopamudra,Seenivasagan,Sathe, Manisha,Sharma, Pratibha,Parashar,Kaushik
supporting information; experimental part, p. 794 - 797 (2011/03/18)
A novel series of aryl hydrazono esters (AHE) (1-13) were synthesized (yield 76-98%) to study the oviposition responses in Aedes albopictus (Skuse) mosquitoes for the first time. At a concentration of 10 μg ml-1 in dual choice experiment, among the screened compounds, AHE-12 showed remarkable oviposition attractant activity with an oviposition activity index (OAI) of +0.299 (greater than 95% confidence limit) comparable to p-cresol (OAI +0.320) which is well-reported oviposition attractant for Aedes aegypti. Conversely, AHE-10 exhibited highest oviposition deterrent activity with OAI -0.247. The possible utilization of these compounds will be in integrated vector management strategies.
Synthesis, characterization and antibacterial screening of new pyrazole and pyrazoline-5-one derivatives
Nagaraju,Srinivasulu,Doraswamy,Venkata Ramana
experimental part, p. 293 - 298 (2012/03/11)
A series of N′-(p-toluene sulphonyl)-3-methyl-4-(substituted arylhydrazono)-2-pyrazoline-5-ones and N′-(2-hydroxybenzoyl)-3,5-dimethyl- 4-(substituted arylazo)pyrazoles have been synthesized and characterized by chemical analysis, IR and 1H NMR spectral data. The compounds have been screened for antibacterial activity against Staphylococcus aureus and Escherichia coli.
Synthesis of some substituted pyrazolones
Dabholkar, Vijay V.,Hawaldar, Freddy,Khapare, Sachin
experimental part, p. 249 - 252 (2011/12/15)
Ethyl-2-[diazo (substituted benzene)] acetoacetates II were treated with thiosemicarbazide to furnish 4-(substituted phenyl) azo-5-methyl-2-thioamido-3- pyrazolones III. Compounds II on treatment with one molar quantity of thiocarbohydrazide (TCH) yielded 4-(substituted phenyl) azo-5-methyl-2- thiocarboxyhydrazino-3-pyrazolones IV whereas bis-2-[4-(substituted phenyl) azo-5-methyl-3-pyrazolone] thioketones V were obtained by treating II with two molar quantity of TCH. All the final desired compounds have been synthesized by microwave irradiation technique as well as classical thermal method. The structures of the newly synthesized compounds have been established by analytical and spectral methods.
