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Hussein A, Gomha SM, El-Ghany NAA, Zaki MEA, Farag B, Al-Hussain SA, Sayed AR, Zaki YH, Mohamed NA. Green Biocatalyst for Ultrasound-Assisted Thiazole Derivatives: Synthesis, Antibacterial Evaluation, and Docking Analysis. ACS Omega 2024; 9:13666-13679. [PMID: 38559991 PMCID: PMC10976384 DOI: 10.1021/acsomega.3c07785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
The catalytic activity of chitosan (Cs) and grafted Cs led to the preparation of terephthalohydrazide Cs Schiff's base hydrogel (TCsSB), which was then investigated as an eco-friendly biocatalyst for synthesizing novel thiazole derivatives. TCsSB exhibited greater surface area and higher thermal stability compared to Cs, making it a promising eco-friendly biocatalyst. We synthesized two novel series of thiazoles via the reaction of 2-(2-oxo-1,2-diphenylethylidene) hydrazine-1-carbothioamide with various hydrazonoyl chlorides and 2-bromo-1-arylethan-1-ones, employing ultrasonic irradiation and using TCsSB as a catalyst. A comparative study between Cs and TCsSB revealed higher yields than TCsSB. The methodology offered advantages such as mild reaction conditions, quick reaction times, and high yields. TCsSB could be reused multiple times without a significant loss of potency. The chemical structures of the newly synthesized compounds were verified through IR, 1H NMR, 13C NMR, and MS analyses. Six synthesized compounds were assessed for their in vitro antibacterial effectiveness by establishing the minimum inhibitory concentration against four distinct bacterial strains. The docking analyses revealed favorable binding scores against several amino acids within the selected protein (PDB Code-1MBT) for these compounds, with compound 4c exhibiting particularly noteworthy binding properties. Additionally, the in silico ADME parameter estimation for all compounds indicated favorable pharmacological properties for these compounds.
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Affiliation(s)
- Ahmed
M. Hussein
- Chemistry
Department, Faculty of Science, Beni-Suef
University, Beni-Suef 62511, Egypt
- Chemistry
Department, College of Science and Humanities—Al Quwaiiyah, Shaqra University, Shaqra 11911, Saudi Arabia
| | - Sobhi M. Gomha
- Department
of Chemistry, Faculty of Science, Islamic
University of Madinah, Madinah 42351, Saudi Arabia
| | | | - Magdi E. A. Zaki
- Department
of Chemistry, Faculty of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Basant Farag
- Department
of Chemistry, Faculty of Science, Zagazig
University, Zagazig 44519, Egypt
| | - Sami A. Al-Hussain
- Department
of Chemistry, Faculty of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Abdelwahed R. Sayed
- Chemistry
Department, Faculty of Science, Beni-Suef
University, Beni-Suef 62511, Egypt
| | - Yasser H. Zaki
- Chemistry
Department, Faculty of Science, Beni-Suef
University, Beni-Suef 62511, Egypt
| | - Nadia A. Mohamed
- Department
of Chemistry, Faculty of Science, Cairo
University, Giza 12613, Egypt
- Department
of Chemistry, College of Science, Qassim
University, Buraidah 51452, Saudi Arabia
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Negm A, Al-Faiyz YS, Riyadh S, Sayed AR. Synthesis, DPPH Radical Scavenging, Cytotoxic Activity, and Apoptosis Induction Efficacy of Novel Thiazoles and Bis-thiazoles. Curr Org Synth 2023; 21:COS-EPUB-135849. [PMID: 37936471 DOI: 10.2174/0115701794264504231017113027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/18/2023] [Accepted: 08/18/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND Heterocyclic materials-containing thiazoles exhibited incredible importance in pharmaceutical chemistry and drug design due to their extensive biological properties. METHODS Synthesis of thiazoles and bis-thiazoles from the reaction of 2-((6-Nitrobenzo[ d][1,3]dioxol-5-yl)methylene)hydrazine-1-carbothioamide with hydrazonoyl chlorides in dioxane and in the existence of triethylamine as basic catalyst. The antioxidant, invitro anti-proliferative, and cytotoxicity efficacy of thiazoles and bis-thiazoles were measured. RESULTS In this work, novel series of 5-methyl-2-(2-(-(6-nitrobenzo[d][1,3]dioxol-5-yl)methylene) hydrazinyl)-4-(aryldiazenyl)thiazoles (4a-f) were prepared via the reaction of hydrazonoyl chlorides 2a-f with 2-((6-nitrobenzo[d][1,3]dioxol-5-yl)methylene)hydrazine-1-carbothioamide (1) in dioxane and employing triethylamine as basic catalyst. Following the same procedure, bisthiazoles (6, 8, and 10) have been synthesized by utilizing bis-hydrazonoyl chlorides (5, 7, and 9) and carbothioamide 1 in a molar ratio (1:2), respectively. The distinctive features in the structure of isolated products were elucidated by spectroscopic tools and elemental analyses. The antioxidant, invitro anti-proliferative, cytotoxicity, and anti-cancer efficacy of thiazoles and bis-thiazoles were evaluated. Compounds 4d and 4f were the most potent antioxidant agents. Gene expression of apoptosis markers and fragmentation assay of DNA were assessed to explore the biochemical mechanism of synthesized products. Thiazoles significantly inhibited cell growth and proliferation more than bis-thiazoles. They induced apoptosis through induction of apoptotic gene expression P53 and downregulation of antiapoptotic gene expression Bcl-2. Moreover, they induced fragmentation of DNA in cancer cells, indicating that they could be employed as anticancer agents by inhibiting tumor growth and progression and can be considered effective compounds in the strategy of anti-cancer agents' discovery. CONCLUSION Synthesis, DPPH Radical Scavenging, Cytotoxic activity, and Apoptosis Induction Efficacy based on Novel Thiazoles and Bis-thiazoles.
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Affiliation(s)
- Amr Negm
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Yasair S Al-Faiyz
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Sayed Riyadh
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Almunawrah 30002, Saudi Arabia
| | - Abdelwahed R Sayed
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef 62514, Egypt
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Al-Faiyz YS, Sayed AR. Synthesis of Two Isomeric Thiadiazine and Thiazole Derivatives from a Hydrazonoyl Halide. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.1936085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yasair S. Al-Faiyz
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
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Sayed AR, Elsawy H, Shaaban S, Gomha SM, Al-Faiyz YS. Design, Synthesis, and Biological Evaluations of Novel Azothiazoles Based on Thioamide. Curr Issues Mol Biol 2022; 44:2956-2966. [PMID: 35877428 PMCID: PMC9323687 DOI: 10.3390/cimb44070204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 01/13/2023] Open
Abstract
Herein we studied the preparation of different thiazoles via the reaction of 2-(3,4-dimethoxybenzylidene)hydrazine-1-carbothioamide (1) with hydrazonoyl halides under base-catalyzed conditions. The reactions proceed through nucleophilic substitution attack at the halogen atom of the hydrazonoyl halides by the thiol nucleophile to form an S-alkylated intermediate. The latter intermediate undergoes cyclization by the loss of water to afford the final products. The structures of the azo compounds were confirmed by FTIR, MS, NMR, and elemental analyses. Indeed, the newly synthesized azo compounds were estimated for their potential anticancer activities by an MTT assay against different human cancer cells, such as lung adenocarcinoma (A549) and colorectal adenocarcinoma (DLD-1). The caspase-3 levels were also estimated using Western blotting and the dual staining technique to evaluate the potency of the titled compounds to promote apoptosis.
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Affiliation(s)
- Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, P.O. Box 380, Hofuf 31982, Saudi Arabia; (H.E.); (S.S.); (Y.S.A.-F.)
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
- Correspondence: ; Tel.: +966-561-009-338
| | - Hany Elsawy
- Department of Chemistry, Faculty of Science, King Faisal University, P.O. Box 380, Hofuf 31982, Saudi Arabia; (H.E.); (S.S.); (Y.S.A.-F.)
- Department of Chemistry, Faculty of Science, Tanta University, Tanta 31111, Egypt
| | - Saad Shaaban
- Department of Chemistry, Faculty of Science, King Faisal University, P.O. Box 380, Hofuf 31982, Saudi Arabia; (H.E.); (S.S.); (Y.S.A.-F.)
- Organic Chemistry Division, Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt;
- Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara 42351, Saudi Arabia
| | - Yasair S. Al-Faiyz
- Department of Chemistry, Faculty of Science, King Faisal University, P.O. Box 380, Hofuf 31982, Saudi Arabia; (H.E.); (S.S.); (Y.S.A.-F.)
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Abstract
Triazoles and their fused derivatives are regarded as one of the most pharmacologically significant pillars due to their potent, broad and numerous activities. This current review presents recent progress in the synthetic utility of 3-substituted-4-amino-5-mercapto[1,2,4]triazoles as building blocks for a diverse range of fused [1,2,4]triazoles with pharmacological interest eg. pyrazolo-triazoles, triazolo-thiadiazoles, triazolo-triazoles, triazolo-thiadiazines, triazolo-triazines, triazolo-tetrazines, triazolo-thiadiazepines, and others. The biological activity of some triazoles and their fused derivatives are also presented. This suggests that triazoles can be particularly promising synthons in synthesis of functionalized heterocyclic compounds used in the design of novel highly effective pharmaceuticals with a broad spectrum of bioresponses. All of these topics are drawn in this review during the period from 2000 to 2020.
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Affiliation(s)
- Sayed M. Riyadh
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah, 30002, Saudi Arabia
| | - Tariq Z. Abolibda
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351 Saudi Arabia
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, KFU, Hofuf, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351 Saudi Arabia
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Mahmoud HK, Sayed AR, Abdel-Aziz MM, Gomha SM. Synthesis of New Thiazole Clubbed Imidazo[2,1-b]thiazole Hybrid as Antimycobacterial Agents. Med Chem 2022; 18:1100-1108. [DOI: 10.2174/1573406418666220413095854] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/10/2021] [Accepted: 02/01/2022] [Indexed: 11/22/2022]
Abstract
Aims:
The study aims to synthesize bioactive hybrid pharmacophores (thiazole ring and imidazo[2,1-b]thiazole system) by incorporating them to one biological assessment molecular system.
Background:
Literature survey revealed that various imidazo[2,1-b]thiazoles, thiazoles and hydrazones have powerful anti-mycobacterial activity.
Objective:
This study demonstrates the effectiveness of molecular hybridization and the scope for imidazo[2,1-b]thiazole-hydrazone-thiazoles to develop as promising anti-mycobacterial agents.
Method:
Several imidazo[2,1-b]thiazole–hydrazine-thiazoles 5a-g, 7a,b, 9a,b, 11a,b, 13, and 15a,b were generated using a molecular hybridization strategy and assessed against Mycobacterium tuberculosis (ATCC 25618) for their in vitro antituberculous activity.
Result:
Derivative 7b (MIC = 0.98 μg/mL) has shown the most promising anti-mycobacterial activity among the series tested. Brief structure-activity relationship studies found that the thiazole of chlorophenyl or pyridine or coumarin had a significant relation with the anti-mycobacterial activity.
Conclusion:
Promising anti-mycobacterial activity of compound 7b compared with reference drug suggests that this compound may contribute as a lead compound in search of new potential anti-mycobacterial agents.
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Affiliation(s)
- Huda K. Mahmoud
- Department of Chemistry, Faculty of Science, University of Cairo, Giza, Egypt
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, KFU, Hofuf, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
| | - Marwa M. Abdel-Aziz
- Regional Center for Mycology and Biotechnology at Al-Azhar University, Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, University of Cairo, Giza, Egypt
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
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Sayed AR, Al-Faiyz YS, Elsawy H, Shaaban S, Mohamed MA. Synthesis and Biochemical Studies of Novel Mon-Azothiazoles and Bis-Azothiazoles Based on 2-(4-(Dimethylamino)Benzylidene)Hydrazine-1-Carbothioamide. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2049326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Yasair S. Al-Faiyz
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Hany Elsawy
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Saad Shaaban
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
- Organic Chemistry Division, Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mahmoud A. Mohamed
- Technology of Textile Department, Faculty of Technology & Education, Beni-Suef University, Beni-Suef, Egypt
- Department of Chemistry, Faculty of Science and Humanity Study, Shaqra University, Afif, Saudi Arabia
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8
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Zaki YH, Abdelhamid AO, Sayed AR, Mohamed HS. Synthesis of 1,3,4-Thiadiazole Derivatives Using Hydrazonoyl Bromide: Molecular Docking and Computational Studies. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2027791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yasser H. Zaki
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni‑Suef, Egypt
- Department of Chemistry, Faculty of Science and Humanity Studies at Al-Quwayiyah, Shaqra University, Al-Quwayiyah, Saudi Arabia
| | | | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni‑Suef, Egypt
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
| | - Hussein S. Mohamed
- Department of Chemistry of Medicinal and Aromatic Plants, Research Institute of Medicinal and Aromatic Plants (RIMAB), Beni-Suef University, Beni-Suef, Egypt
- Department of Basic Sciences, Higher Technological Institute in Beni-Suef, Beni-Suef, Egypt
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Abd El-Lateef HM, Shalabi K, Sayed AR, Gomha SM, Bakir EM. The novel polythiadiazole polymer and its composite with α-Al(OH)3 as inhibitors for steel alloy corrosion in molar H2SO4: Experimental and computational evaluations. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.09.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abd El-Lateef HM, Sayed AR, Gomha SM, Bakir EM, Shalabi K. Synthesis and study of poly[(hydrazinylazo)]thiazoles as potent corrosion inhibitors for cast iron-carbon alloy in molar HCl: A collective computational and experiential methods. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Abd El-Lateef HM, Sayed AR, Shalabi K. Synthesis and theoretical studies of novel conjugated polyazomethines and their application as efficient inhibitors for C1018 steel pickling corrosion behavior. Surfaces and Interfaces 2021; 23:101037. [DOI: 10.1016/j.surfin.2021.101037] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Sayed AR, Gomha SM, Al-Faiyz YS, Zaki YH. New Convenient Routes of Hydrazonoyl Halides for the Synthesis of Novel Thiazoles and Polythiazoles. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1866032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
- Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, Saudi Arabia
| | - Yasair S. Al-Faiyz
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
| | - Yasser H. Zaki
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
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Affiliation(s)
- Sukinah H. Ali
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
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Sayed AR, Ali SH, Al-Faiyz YS. Synthesis and Characterization of New Amidrazones Based on [4,4'-Bithiazole]-2,2'-Diamine. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1854321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Sukinah H. Ali
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
| | - Yasair S. Al-Faiyz
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
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15
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Affiliation(s)
- Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Sukinah H. Ali
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf, Saudi Arabia
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
- Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, Saudi Arabia
| | - Yasair S. Al-Faiyz
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf, Saudi Arabia
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16
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Sayed AR, Gomha SM, Taher EA, Muhammad ZA, El-Seedi HR, Gaber HM, Ahmed MM. One-Pot Synthesis of Novel Thiazoles as Potential Anti-Cancer Agents. Drug Des Devel Ther 2020; 14:1363-1375. [PMID: 32308369 PMCID: PMC7138620 DOI: 10.2147/dddt.s221263] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 03/12/2020] [Indexed: 01/07/2023]
Abstract
Background Thiazole and thiosemicarbazone derivatives are known to have potential anticancer activity with a mechanism of action related to inhibition of matrix metallo-proteinases, kinases and anti-apoptotic BCL2 family proteins. Materials and Methods A novel three series of 5-(1-(2-(thiazol-2-yl)hydrazono)ethyl)thiazole derivatives were prepared in a one-pot three-component reaction using 2-(2-benzylidene hydrazinyl)-4-methylthiazole as a starting precursor. MS, IR, 1H-NMR and 13C-NMR were used to elucidate the structures of the synthesized compounds. Most of the synthesized products were evaluated for their in vitro anticancer screening against HCT-116, HT-29 and HepG2 using the MTT colorimetric assay. Results The results indicated that compounds 4c, 4d and 8c showed growth inhibition activity against HCT-116 with IC50 values of 3.80 ± 0.80, 3.65 ± 0.90 and 3.16 ± 0.90 μM, respectively, compared to harmine (IC50 = 2.40 ± 0.12 μM) and cisplatin (IC50 = 5.18 ± 0.94 μM) reference drugs. Also, compounds 8c, 4d and 4c showed promising IC50 values of 3.47 ± 0.79, 4.13 ± 0.51 and 7.24 ± 0.62 μM, respectively, against the more resistant human colorectal cancer (HT-29) cell line compared with harmine (IC50 = 4.59 ± 0.67 μM) and cisplatin (IC50 = 11.68 ± 1.54 μM). On the other hand, compounds 4d, 4c, 8c and 11c were the most active (IC50 values of 2.31± 0.43, 2.94 ± 0.62, 4.57 ± 0.85 and 9.86 ± 0.78 μM, respectively) against the hepatocellular carcinoma (HepG2) cell line compared with harmine (IC50 = 2.54 ± 0.82 μM) and cisplatin (IC50 = 41 ± 0.63 μM). The study also suggested that the mechanism of the anticancer action exerted by the most active compounds (4c, 4d and 8c) inside HCT-116 cells was apoptosis through the Bcl-2 family. Conclusion Thiazole scaffolds 4c, 4d and 8c showed anticancer activities in the micromolar range and are appropriate as a candidate for cancer treatment.
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Affiliation(s)
- Abdelwahed R Sayed
- Department of Chemistry, Faculty of Science, KFU, Hofuf, Saudi Arabia.,Department of Chemistry, Faculty of Science, Beni-suef University, Beni-suef, Egypt
| | - Sobhi M Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.,Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara 42351, Saudi Arabia
| | - Eman A Taher
- Department of Pharmaceutical Chemistry, National Organization for Drug Control and Research (NODCAR), Giza 12311, Egypt.,Chemistry Department, Faculty of Science, El-Menoufia University, Shebin El-Kom 32512, Egypt
| | - Zeinab A Muhammad
- Department of Pharmaceutical Chemistry, National Organization for Drug Control and Research (NODCAR), Giza 12311, Egypt
| | - Hesham R El-Seedi
- Chemistry Department, Faculty of Science, El-Menoufia University, Shebin El-Kom 32512, Egypt.,Division of Pharmacognosy, Department of Medicinal Chemistry, Uppsala University, Biomedical Centre, Uppsala SE-75123, Sweden
| | - Hatem M Gaber
- Department of Pharmaceutical Chemistry, National Organization for Drug Control and Research (NODCAR), Giza 12311, Egypt
| | - Mahgoub M Ahmed
- Molecular Drug Evaluation Department, National Organization for Drug Control and Research (NODCAR), Giza 12311, Egypt
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Sayed AR, Ahmed MSM, Gomha SM. Efficient Methods for the Synthesis of Novel Arylazothiazoles Based on Acetylferrocene or Adamantane. Curr Org Synth 2020; 17:282-287. [PMID: 32101128 DOI: 10.2174/1570179417666200226091711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hydrazonoyl halides are convenient for the synthesis of arylazothiazoles. MATERIALS AND METHODS A series of novel arylazothiazoles were efficiently synthesized from the reaction of hydrazonoyl chlorides with 2-(adamantan-2-ylidene)hydrazinecarbothioamide or 2-(ferrocenyl-1-ylidene)hydrazinecarbo-- thioamide in dioxane used as an aprotic solvent because of its lower toxicity and higher boiling point (101 °C) and triethylamine at reflux. The reaction mechanistic pathway proceeded by the nucleophilic substitution reaction by the elimination of hydrogen chloride to give thiohydrazonates as intermediate, which in situ undergo intramolecular cyclization and loss of water molecule to afford the final product of novel arylazothiazoles. This method is simple with good yield and excellent purities. RESULTS AND DISCUSSION The synthetic schemes for the final products are proposed and discussed. The chemical structures of the final products were identified by different techniques, such as elemental analysis, Fourier-transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), and mass spectrometry (MS). CONCLUSION In this article, we prepared arylazothiazoles from the reaction of 2-(adamantan-2-ylidene)hydrazinecarbothioamide or 2-(ferrocenyl-1-ylidene)hydrazinecarbothioamide with hydrazonoyl halides.
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Affiliation(s)
- Abdelwahed R Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Hofuf, Al-Ahsa, 31982, Saudi Arabia
| | - Mohamed S M Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Sobhi M Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
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Sayed AR, Gomha SM, Abdelrazek FM, Farghaly MS, Hassan SA, Metz P. Design, efficient synthesis and molecular docking of some novel thiazolyl-pyrazole derivatives as anticancer agents. BMC Chem 2019; 13:116. [PMID: 31572983 PMCID: PMC6760062 DOI: 10.1186/s13065-019-0632-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 09/10/2019] [Indexed: 11/29/2022] Open
Abstract
Pyrazoles, thiazoles and fused thiazoles have been reported to possess many biological activities. 3-Methyl-5-oxo-4-(2-arylhydrazono)-4,5-dihydro-1H-pyrazole-1-carbothioamides 3a,b (obtained from the reaction of ethyl 3-oxo-2-(2-arylhydrazono)butanoates 1a,b with thiosemicarbazide) could be transformed into a variety of thiazolyl-pyrazole derivatives 6a–h, 10a–c, 15a–c, 17, 19 and 21 via their reaction with a diversity hydrazonoyl chlorides as well as bromoacetyl derivatives. Moreover, the computational studies were carried out for all new compounds. The results indicated that five compounds showed promising binding affinities (10a: − 3.4 kcal/mol, 6d: − 3.0 kcal/mol, 15a: − 2.2 kcal/mol, 3a: − 1.6 kcal/mol, and 21: − 1.3 kcal/mol) against the active site of the epidermal growth factor receptor kinase (EGFR). The cytotoxicity of the potent products 3a, 6d, 10a, 15a, and 21 was examined against human liver carcinoma cell line (HepG-2) and revealed activities close to Doxorubicin standard drug. There was an understanding between the benefits of restricting affinities and the data obtained from the practical anticancer screening of the tested compounds.![]()
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Affiliation(s)
- Abdelwahed R Sayed
- 1Department of Chemistry, Faculty of Science, King Faisal University, Hofuf, Saudi Arabia.,3Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Sobhi M Gomha
- 2Chemistry Department, Faculty of Science, Cairo University, Giza, 12613 Egypt.,Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351 Saudi Arabia
| | - Fathy M Abdelrazek
- 2Chemistry Department, Faculty of Science, Cairo University, Giza, 12613 Egypt.,Science and Technology Center of Excellence, Ministry of Military Production, Cairo, Egypt
| | - Mohamed S Farghaly
- 2Chemistry Department, Faculty of Science, Cairo University, Giza, 12613 Egypt.,Science and Technology Center of Excellence, Ministry of Military Production, Cairo, Egypt
| | - Shaimaa A Hassan
- 2Chemistry Department, Faculty of Science, Cairo University, Giza, 12613 Egypt
| | - Peter Metz
- 6Fakultat Chemie und Lebensmittelchemie, TU-Dresden, 01069 Dresden, Germany
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Affiliation(s)
- Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Sukinah H. Ali
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf, Saudi Arabia
| | - Yasair S. Al-Faiyz
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf, Saudi Arabia
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Abd El‐Lateef HM, Sayed AR, Adam MSS. Sulfonated salicylidene thiadiazole complexes with Co (II) and Ni (II) ions as sustainable corrosion inhibitors and catalysts for cross coupling reaction. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4987] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hany M. Abd El‐Lateef
- Department of Chemistry, College of ScienceKing Faisal University P.O. Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
- Chemistry Department, Faculty of ScienceSohag University Sohag 82534 Egypt
| | - Abdelwahed R. Sayed
- Department of Chemistry, College of ScienceKing Faisal University P.O. Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
- Department of Chemistry, Faculty of ScienceUniversity of Beni Suef Egypt
| | - Mohamed Shaker S. Adam
- Department of Chemistry, College of ScienceKing Faisal University P.O. Box 380 Al Hufuf 31982 Al Hassa Saudi Arabia
- Chemistry Department, Faculty of ScienceSohag University Sohag 82534 Egypt
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Sayed AR, Saleh MM, Al-Omair MA, Abd Al-Lateef HM. Efficient route synthesis of new polythiazoles and their inhibition characteristics of mild-steel corrosion in acidic chloride medium. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.061] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
The reactions of 3-chloro-1,5-diarylformazans 1 with 3-amino-2-thiouracils 2(4) and 3-amino-2-thioxo-6-methyl-1,2, 4-triazin-5(4H)-ones 6 and their methylthio derivatives 3(5) and 7, respectively provide easy access to synthesis of 3-arylazo derivatives of 1,4-dihydro-1,8-disubstituted pyrimido[1,2-b][1,2,4,5]tetrazin-6-ones 8(9) and 1,4-dihydro-1-aryl-7-methyl[1,2,4]triazino[4,3-b][1,2,4,5]-tetrazin-6-ones (10), respectively.
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Affiliation(s)
- Ahmad S. Shawali
- Department of Chemistry, Faculty of Science, University of Cairo Giza, Egypt
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, University of Cairo Giza, Egypt
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Sayed AR, Abd El-lateef HM, Mohamad ADM. Polyhydrazide Incorporated with Thiadiazole Moiety as Novel and Effective Corrosion Inhibitor for C-Steel in Pickling Solutions of HCl and H2SO4. Macromol Res 2018. [DOI: 10.1007/s13233-018-6124-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Al-Omair MA, Sayed AR, Youssef MM. Synthesis and Biological Evaluation of Bisthiazoles and Polythiazoles. Molecules 2018; 23:E1133. [PMID: 29747479 PMCID: PMC6099618 DOI: 10.3390/molecules23051133] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/07/2018] [Accepted: 05/07/2018] [Indexed: 11/16/2022] Open
Abstract
Small heterocyclic compounds containing nitrogen and sulfur atoms, such as thiazole derivatives, represent a significant class of organic azoles that exhibit promising bioactivities and have a great potential in medicinal and agricultural fields. A convenient and high-yielding synthetic approach for a range of organic molecules is presented. The nuclease-like activities of compounds were studied with the aid of E. coli AB1157 DNA and agarose gel electrophoresis. The antioxidant evaluation of the compounds was carried out with different antioxidant techniques, such as ABTS and NO scavenging efficiency. The antibacterial behavior was evaluated against various bacterial strains, both Gram-positive and -negative, and the minimum inhibitory concentration (MIC) values of these compounds were determined. The antiproliferative activities and IC50 values of the synthesized organic molecules compounds against HEPG-2, MCF-7, and HCT-116 cell lines were evaluated.
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Affiliation(s)
- Mohammed A Al-Omair
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia.
| | - Abdelwahed R Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef 62514, Egypt.
| | - Magdy M Youssef
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt.
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Affiliation(s)
| | - Magdy M. Youssef
- Department of Chemistry, Faculty of Science, KFU, Hofuf, Saudi Arabia
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Gomha SM, El-Idreesy TT, Mabrouk BKA, Sayed AR. Synthesis and characterization of new pyrido-thieno-pyrimidine derivatives incorporating pyrazole moiety. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1370113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Tamer T. El-Idreesy
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
- Department of Chemical Engineering, Faculty of Engineering, The British University in Egypt (BUE), El-Shorouk City, Egypt
| | - Bazada K. A. Mabrouk
- Department of Chemistry, National Institute of Oceanography & Fisheries, Cairo, Egypt
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, KFU, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, University of Beni Suef, Beni Suef, Egypt
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Sayed AR, Al-Shihry SS. New Route Synthesis of Thiadiazoles, Bisthiadiazoles, Thiadiazolotriazines, and Pyrazolothiadiazoles Based on Hydrazonoyl Halides and Dihydrazinylthiadiazole. Molecules 2017; 22:molecules22020336. [PMID: 28230816 PMCID: PMC6155855 DOI: 10.3390/molecules22020336] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Accepted: 02/15/2017] [Indexed: 11/18/2022]
Abstract
Synthesis and characterization of new thiadiazoles, bisthiadiazoles from the reaction of mono- and di-hydrazonoyl halides with various hydrazinecarbodithioate derivatives were studied. Treatment of hydrazonoyl halides with 2,5-dihydrazinyl-1,3,4-thiadiazole afforded new bistriazines containing thiadiazole; we also examined the reaction of 2,5-dihydrazinyl-1,3,4-thiadiazole with active methylene compounds to afford new pyrazoles containing thiadiazole compounds. The new synthesized compounds were identified by elemental analysis and various spectral data (Fourier transform infrared spectroscopy, mass spectrometry, 1H and 13C nuclear magnetic resonance).
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Affiliation(s)
- Abdelwahed R Sayed
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt.
| | - Shar Saad Al-Shihry
- Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia.
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Affiliation(s)
- Sobhi M. Gomha
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Thoraya A. Farghaly
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
- Department of Chemistry, Faculty of Applied Science; Umm Al-Qura University; Makkah Almukkarramah Saudi Arabia
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science; KFU; Hofuf Saudi Arabia
- Department of Chemistry, Faculty of Science; University of Beni-Suef; Beni-Suef Egypt
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A. Farghaly T, M. Gomha S, R. Sayed A, A. Khedr M. Hydrazonoyl Halides as Precursors for Synthesis of Bioactive Thiazole and Thiadiazole Derivatives: Synthesis, Molecular Docking and Pharmacological Study. Curr Org Synth 2016. [DOI: 10.2174/1570179412666150817220018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gomha SM, Farghaly TA, Sayed AR, Abdalla MM. Synthesis of Pyrazolyl-Pyrazoles and Pyrazolyl-[1,2,4]-Triazolo[3,4-d][1,5]Benzothiazepines as p53 Activators Using Hydrazonoyl Chlorides. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2455] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sobhi M. Gomha
- Department of Chemistry, Faculty of Science; University of Cairo; Giza 12613 Egypt
| | - Thoraya A. Farghaly
- Department of Chemistry, Faculty of Science; University of Cairo; Giza 12613 Egypt
- Department of Chemistry, Faculty of Applied Science; Umm Al-Qura University; Makkah Almukkarramah Saudi Arabia
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science; KFU Saudi Arabia
- Department of Chemistry, Faculty of Science; University of Beni Suef; Egypt
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Motsohi TS, Isaacs AA, Manga N, Le Grange C, Roelofse M, Milligan P, Hellenberg DA, Sayed AR. Common mental disorders are not diagnosed commonly in community health centres. S Afr Fam Pract (2004) 2015. [DOI: 10.1080/20786190.2014.978094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Sayed AR, Youssef MM, Faiyz YSA. Synthesis, Characterization and Biological Evaluation of Novel Thiadiazoline Sulfonamides and Metal Complexes. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/jas.2015.884.893] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sayed AR, Gomha SM, Farghaly TA. Synthesis and Characterization of Bisimidazoles, Bistriazoles, Bisthiadiazoles, and Bisthiazoles from Novel Bishydrazonoyl Dichlorides. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2320] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science; King Faisal University; Al-Ahsa Saudi Arabia
- Department of Chemistry, Faculty of Science; University of BeniSuef; Beni-Suef Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science; University of Cairo; Giza 12613 Egypt
| | - Thoraya A. Farghaly
- Department of Chemistry, Faculty of Science; University of Cairo; Giza 12613 Egypt
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Tu J, Tucker SJ, Christensen S, Sayed AR, Jarrett WL, Wiggins JS. Phenylene Ring Motions in Isomeric Glassy Epoxy Networks and Their Contributions to Thermal and Mechanical Properties. Macromolecules 2015. [DOI: 10.1021/ma5022506] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianwei Tu
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Samuel J. Tucker
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Stephen Christensen
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Abdelwahed R. Sayed
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - William L. Jarrett
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
| | - Jeffrey S. Wiggins
- The School of Polymers and
High Performance Materials, The University of Southern Mississippi, 118 College Dr. #5050, Hattiesburg, Mississippi 39406, United States
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Shawali AS, Abdelkhalek AA, Sayed AR. Kinetics and Mechanism of Dehydrochlorination of 3-Chloro-1,5-diarylformazans and Their Mass Spectra. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200100099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Sayed AR. Synthesis of 1,3,4-thiadiazines, bis-1,3,4-thiadiazoles, [1,2,4]triazino[3,4-b][1,3,4]thiadiazine, thiazolines from carbonothioic dihydrazide. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.02.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Attaby FA, El-Ghandour AH, Sayed AR, El Bassuony AA, El-Reedy AA. Synthesis and characterization of 6-(aryl)-2-thioxo-1,2-dihydropyridine-3-carbonitriles. J Sulphur Chem 2012. [DOI: 10.1080/17415993.2012.661734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Fawzy A. Attaby
- a Chemistry Department, Faculty of Science , Cairo University , 12613 , Giza , Egypt
| | - Ahmed H. El-Ghandour
- b Chemistry Department, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Abdelwahed R. Sayed
- b Chemistry Department, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Ashraf A. El Bassuony
- c Spinning-Weaving Department, Faculty of Industrial Education , Beni-Suef University , Beni-Suef , Egypt
| | - Ahmed A.M. El-Reedy
- d Basic-Applied Science Department, Faculty of Oral and Dental Medicine , Nahda University , Beni-Suef , Egypt
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Shawali AS, Sayed AR, Zayed MM. A convenient method for synthesis of bis-2,2′-(1,3,4-thiadiazole) and bis-3,3′-(1,2,4-triazole) derivatives. J Sulphur Chem 2011. [DOI: 10.1080/17415993.2011.586456] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sayed AR, Wiggins JS. Alternating copolymer of pyridine and 1,4-diphenyl-1,2,4,5-tetrazine from bis-1,3-dipolar cycloaddition polymerization. J Appl Polym Sci 2010. [DOI: 10.1002/app.33147] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Affiliation(s)
- Ahmad S. Shawali
- a Department of Chemistry , Faculty of Science, University of Cairo , Giza, Egypt
| | - Abdelwahed R. Sayed
- a Department of Chemistry , Faculty of Science, University of Cairo , Giza, Egypt
| | - Mohie M. Zayed
- a Department of Chemistry , Faculty of Science, University of Cairo , Giza, Egypt
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Abdelhamid AO, Sayed AR. Reaction of Hydrazonoyl Halides 52: Synthesis and Antimicrobial Activity of Some New Pyrazolines and 1,3,4-Thiadiazolines. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701313938] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Abdou O. Abdelhamid
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Abdelwahed R. Sayed
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
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Abdelhamid AO, Sayed AR, Zaki YH. Reaction of Hydrazonoyl Halides 511: A Facile Synthesis of 5-Arylthiazoles and Triazolino[4,3- a ]pyrimidines as Antimicrobial Agents. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701242145] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Abdou O. Abdelhamid
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Abdelwahed R. Sayed
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Yasser H. Zaki
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
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Shawali AS, Sayed AR. Tandem regioselective 1,5-electrocyclizations of bis-nitrilimines—a new convenient synthesis of 1,2,4-triazolo[3,4-b][1,3,4]thiadiazoles. J Sulphur Chem 2006. [DOI: 10.1080/17415990600649193] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ahmad S. Shawali
- a Department of Chemistry, Faculty of Science , University of Cairo , Giza, Egypt
| | - Abdelwahed R. Sayed
- a Department of Chemistry, Faculty of Science , University of Cairo , Giza, Egypt
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Sayed AR, Nixon J, Bourne DE. Folic acid awareness among women of reproductive age in Cape Town. S Afr Med J 2006; 96:12. [PMID: 16440103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
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Bourne D, Sayed AR. Some spatial variations in South African mortality. Urban Health Newsl 1996:29-32. [PMID: 12178475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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