synthesis and antioxidant activity of 3-(3,4 at cambodia
Enantioselective synthesis and antioxidant activity of 3,4
The 3,4,5-trisubstituted piperidines containing TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) and a spatially proximal hydroxy group showed good antioxidant activity. Some of these compounds showed IC50 values in a nanomolar range, comparable to that of TEMPO.
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Synthesis, Antioxidant, and Antibacterial Activities
A new series of 2‐(3‐fluorobenzyl)‐1H‐benzimidazole derivatives containing Schiff base, 1,3,4‐oxadiazole, thiosemicarbazide, and 1,3,4‐thiadiazole moiety was synthesized. All the synthesized compounds were investigated for their antioxidant and antibacterial activities.
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Synthesis and antioxidant activity of alkyl 3-(4
4-Alkylthiopropylphenols were synthesized from corresponding 2,6-dialkylphenols via the allyl derivative. A comparative study of the antioxidant activity of the prepared compounds was carried out in five model systems. The rate constants for the reactions of the test compounds with cumene, styrene, and methyl oleate peroxide radicals were measured.
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Novel 1,3,4-thiadiazole conjugates derived from
The synthesis of a series of novel 1,3,4-thiadiazole amides (3a–o) is performed in two steps presented in Scheme 1. Initially, heterocyclic 1,3,4-thiadiazole precursors (2a–o) were prepared by the reaction of corresponding carboxylic acid (1a–o) with thiosemicarbazide using phosphoryl chloride as the reagent and solvent .
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Synthesis and antioxidant activity of 1,3,4-oxadiazole
Synthesis of a series of novel 1,3,4-oxadiazole tagged thieno[2,3-d]pyrimidine derivatives in good yields. The structures of synthesized compounds were established on the basis of spectral data. Synthesized compounds were evaluated for their in vitro antioxidant activity. Compounds 4k, 4j, 4d, and 4e showed good radical scavenging activity in all three methods.
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Synthesis and antioxidant activity of 1,3,4-oxadiazoles
Synthesis and antioxidant activity of 1,3,4-oxadiazoles and their diacylhydrazine precursors derived from phenolic acids†. Nevena Mihailović a, Violeta Marković a, Ivana Z. Matić b, Nemanja S. Stanisavljević c, Živko S. Jovanović c, Snežana Trifunović d and Ljubinka Joksović * a a Faculty of Science, Department of Chemistry, University of Kragujevac, R. Domanovića 12, 34000 ...
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Synthesis and antioxidant activity of 1,3,4-oxadiazoles
all tested compounds, four diacylhydrazines and four 1,3,4-oxadiazoles showed good antioxidant activity, with IC 50 values in the range of 13.59 to 22.17 mM, while IC 50 values of ascorbic acid and nordihydroguaiaretic acid (NDGA) were 38.78 and 20.83 mM, respectively. Compared to the corresponding 1,3,4-oxadiazoles (7a–h),
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Green synthesis, antioxidant and antibacterial activities
Green synthesis, antioxidant and antibacterial activities of 4-aryl-3,4-dihydropyrimidinones/thiones derivatives of curcumin. Theoretical calculations and mechanism study Author links open overlay panel Nassima Khaldi-Khellafi a b Malika Makhloufi-Chebli a Djamila Oukacha-Hikem a Souhila Terachet Bouaziz b Kamilia Ould Lamara a Taous Idir a Amina Benazzouz-Touami a Françoise Dumas c
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Synthesis, antioxidant activities and urease inhibition
The structure elucidations of the newly synthesized compounds were carried out by modern spectroscopic techniques like IR, 1H NMR and 13C NMR. Further confirmations of the compounds were carried out by mass spectrometry and microanalysis. Scheme 1. Synthesis of 1,2,4-triazole and 1,3,4-thiadiazole derivatives.
Send InquirySynthesis and Antioxidant Activity of 2-Amino-5
In view of these findings, it was considered of interest to undertake the synthesis of 2-amino-5-methylthiazol derivatives containing 1,3,4-oxadiazole-2-thiol moiety, hoping that these compounds might possess certain antioxidant activity. The structures of the synthesized compounds were deduced on the basis of 1 H NMR, IR, and mass spectra. The composition of all compounds was obtained by elemental analyses.
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Synthesis, Characterization, and the Antioxidant Activity of
antioxidant activity; chemical modification; double quaternized chitosan; single quaternized chitosan.Scheme 1. Synthetic pathway of PDCS, MP2MDCS, MP3MDCS, and MP4MDCS. Synthesis, Characterization, and the Antioxidant Activity of Double Quaternized Chitosan
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Synthesis and Antioxidant Activity of 3-(Pyridin-2-ylmethyl)
| The antioxidant properties of two series of thiazolidinones and thiazinanones were reported. The novel six-membered thiazinanones were synthesized from the efficient multicomponent reaction of 2-picolylamineVolume 28, Number 9, 2014. Synthesis and Antioxidant Activity of.
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Synthesis, antimicrobial and antioxidant activities
Antioxidant activities of all the compounds were also determined. 4a, 4c and 4d were found to possess significant antioxidant activity.Please cite this article in press as Naqui Jahan Siddiqui et al , Synthesis, Antimicrobial and Antioxidant Activities of 1,3,5-Thiadiazine Derivatives, Indo Am.
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Synthesis and antioxidant activity of some
Biological evaluation of some of the compounds showed that many had promising antioxidant activity.Thiazolidin-4one Tetrazoles Triazoles Acrylonitrile Antioxidant. This is a preview of subscription content, log in to check access.
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Synthesis and Antioxidant Activity of 2-Amino-5-methylthiazol
The antioxidant activity of the synthesized compounds was evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH), hydroxyl, nitric oxide, andIn view of these findings, it was considered of interest to undertake the synthesis of 2-amino-5-methylthiazol derivatives containing 1,3
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Molecules | Free Full-Text | Synthesis and Antioxidant Activity
Preliminary investigation on cytotoxic and antifungal activity was done on some representative samples.Čačić, M.; Molnar, M.; Šarkanj, B.; Has-Schön, E.; Rajković, V. Synthesis and Antioxidant Activity of Some New Coumarinyl-1,3-Thiazolidine-4-ones.
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Anti-inflammatory and Antioxidant Activity
However antioxidant activity of quercetin-3, 3’ and 4’-triacetate was lower than that of quercetin.Following our previous result in development of quercetin as anti-inflammatory agent, this study aims to obtain data showing antioxidant potency and anti-inflammatory activity of quercetin-3, 3’, 4’-triacetate.
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Synthesis, characterization and antioxidant activity of some
Antioxidants are the compounds, which terminate the attack of reactive species like free radicals and prevent it from ageing and different disease associated with oxidative damages inside the body system.37 Antioxidant activity of a synthetic compound can be measured using the scavenging
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DPPH Test (with calculation of IC50) for evaluation of Antioxidant
antioxidant activity protocol (DPPH assay) - Продолжительность: 6:09 carbomer 35 707 просмотров.Free radicals and antioxidants (HD) - Продолжительность: 1:18:54 fblt.cz 111 408 просмотров.
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Synthesis, Antibacterial, Antioxidant Activity and QSAR Studies
The synthesized compounds were also evaluated for antioxidant activity.The promising antibacterial and antioxidant activities of some of these synthesized 2-arylidenehydrazinyl-4-arylthiazole derivatives, together with the results of quantum-chemical studies, could be helpful for the
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