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An eco-friendly electrochemical process for the formation of a new desloratadine derivative and its antibacterial susceptibility. Report of a new type of ortho-quinhydrone complex. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nano optical and electrochemical sensors and biosensors for detection of narrow therapeutic index drugs. Mikrochim Acta 2021; 188:411. [PMID: 34741213 DOI: 10.1007/s00604-021-05003-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/24/2021] [Indexed: 01/02/2023]
Abstract
For the first time, a comprehensive review is presented on the quantitative determination of narrow therapeutic index drugs (NTIDs) by nano optical and electrochemical sensors and biosensors. NTIDs have a narrow index between their effective doses and those at which they produce adverse toxic effects. Therefore, accurate determination of these drugs is very important for clinicians to provide a clear judgment about drug therapy for patients. Routine analytical techniques have limitations such as being expensive, laborious, and time-consuming, and need a skilled user and therefore the nano/(bio)sensing technology leads to high interest.
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Study of reactions of Nε-(carboxymethyl) lysine with o-benzoquinones by cyclic voltammetry. Food Chem 2020; 307:125554. [PMID: 31648176 DOI: 10.1016/j.foodchem.2019.125554] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 09/15/2019] [Accepted: 09/16/2019] [Indexed: 11/22/2022]
Abstract
The reaction of Nε-(carboxymethyl) lysine (CML) with eight kinds of non-flavonoid o-benzoquinones and five kinds of flavonoid o-benzoquinones were investigated by cyclic voltammetry at pH 5.0, 7.0 and 8.0 and scan rate of 10, 50 and 100 mV/s. The reactivity of o-benzoquinones towards CML is weakened by the electron-donating substituent and strengthened by the electron-withdrawing substituent on the o-benzoquinone rings. The steric hindrance of the substituents on o-benzoquinone rings also weakens the quinone reactivity. Reaction of 4-methylbenzoquinone with CML (38.0 ± 1.3%) was found to be faster than that with l-lysine (31.3 ± 1.5%) and Nα-acetyl-l-lysine (14.5 ± 0.1%) but slower than that with l-cysteine (≥100.0%) and Nα-acetyl-l-cysteine (≥100.0%) at pH 7.0 and scan rate of 10 mV/s. Products obtained by the reaction of CML with o-benzoquinones were found to include a CML-quinone adduct according to the cyclic voltammetry and UPLC-QTOF-MS/MS analysis.
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Li Y, Qi H, Fan M, Zhu Z, Zhan S, Li L, Li B, Zhang X, Zhao X, Ma J, Wang L. Quantifying the efficiency of o-benzoquinones reaction with amino acids and related nucleophiles by cyclic voltammetry. Food Chem 2020; 317:126454. [PMID: 32113140 DOI: 10.1016/j.foodchem.2020.126454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 02/03/2020] [Accepted: 02/19/2020] [Indexed: 12/15/2022]
Abstract
The reaction efficiency of o-benzoquinones with amines (L-lysine, Nα-acetyl-L-lysine, glycine, L-methionine and L-arginine), thiols (L-cysteine and Nα-acetyl-L-cysteine) and protein (bovine serum albumin) were determined at pH 5.0, 7.0 and 8.0 and scan rate of 10, 50 and 100 mV/s by cyclic voltammetry. Nucleophiles containing multiple nucleophilic groups and nucleophilic group possessing low pKa value would enhance the reactivity of nucleophiles towards o-benzoquinones. The reactivity of different o-benzoquinones with L-lysine/L-cysteine followed the order: protocatechuic acid quinone ≈ catechol quinone > 4-methylbenzoquinone ≈ caffeic acid quinone > rosmarinic acid quinone > chlorogenic acid quinone. The reactivity of quinones would be decreased by the steric hindrance of substituents on quinone ring, and it would also be weakened by enhancing electron cloud density of quinone ring. Adducts generated by the interaction of 4-methylbenzoquinone with amines and thiols were tentatively identified as amine-quinone adduct and thiol-phenol adduct respectively by UPLC-QTOF-MS/MS and cyclic voltammetry.
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Affiliation(s)
- Yuting Li
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Haiping Qi
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety/School of Food Science and Technology, South China University of Technology, Guangzhou 510640, China
| | - Meiqi Fan
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Zixing Zhu
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Shijie Zhan
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Lin Li
- Engineering Research Center of Health Food Design & Nutrition Regulation, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety/School of Food Science and Technology, South China University of Technology, Guangzhou 510640, China.
| | - Bing Li
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety/School of Food Science and Technology, South China University of Technology, Guangzhou 510640, China.
| | - Xia Zhang
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety/School of Food Science and Technology, South China University of Technology, Guangzhou 510640, China
| | | | - Jingjing Ma
- SCIEX (China) Co., Ltd., Guangzhou 510623, China
| | - Lifeng Wang
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, China
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Toghan A, Abo-Bakr AM, Rageh HM, Abd-Elsabour M. Green electrochemical strategy for one-step synthesis of new catechol derivatives. RSC Adv 2019; 9:13145-13152. [PMID: 35520793 PMCID: PMC9063765 DOI: 10.1039/c9ra01206k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 04/15/2019] [Indexed: 11/21/2022] Open
Abstract
In this paper, we present promising results in the green electrochemical oxidation of catechol in the presence of three different thiol nucleophiles at the surface of a glassy carbon electrode in an aqueous solution using cyclic voltammetry (CV). The outcome indicated the synthesis of some new heterocyclic compounds functionalized with phenolic, triazole, triazine and pyrimidine groups. The effects of repetitive cycling, nucleophile concentrations and sweep rates were explored to get more information about the systems. The voltammetric data showed that the electro-generated o-benzoquinone is a quite reactive intermediate, which in aqueous solutions can quickly participate in a Michael-addition reaction with any one of the nucleophiles to form the corresponding products. The structures of all newly electro-synthesized compounds were confirmed by elemental analyses and FT-IR, 1H NMR, 13C-NMR and MS spectra. The one-pot synthesis strategy led to new organics with high purities and good yields under green conditions without harmful reagents. In this paper, we present promising results in the green electrochemical oxidation of catechol in the presence of three different thiol nucleophiles at the surface of a glassy carbon electrode in an aqueous solution using cyclic voltammetry (CV).![]()
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Affiliation(s)
- Arafat Toghan
- Chemistry Department, Faculty of Science, South Valley University Qena 83523 Egypt .,Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh 11623 Kingdom of Saudi Arabia
| | - Ahmed M Abo-Bakr
- Chemistry Department, Faculty of Science, South Valley University Qena 83523 Egypt
| | - Hesham M Rageh
- Chemistry Department, Faculty of Science, South Valley University Qena 83523 Egypt
| | - Mohamed Abd-Elsabour
- Chemistry Department, Faculty of Science, South Valley University Qena 83523 Egypt
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Dadkhah-Tehrani S, Shabani-Nooshabadi M, Moradian M. A green approach for the electroorganic synthesis of 2-[(4-methyl-2-pyridyl)amino]-1,4-benzenediol derivatives in aqueous solution. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1220-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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