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Ragab SS, Abdelraof M, Elrashedy AA, Sweed AM. Design, Synthesis, Molecular Dynamic Simulation Studies, and Antibacterial Evaluation of New Spirocyclic Aminopyrimidines. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Ragab SS, Sweed AM, Elrashidy A, Allayeh AK. Design, Synthesis, Antiviral Evaluation, and Molecular Dynamics Simulation Studies of New Spirocyclic Thiopyrimidinones as anti HCoV-229E. Chem Biodivers 2022; 19:e202200632. [PMID: 36097361 DOI: 10.1002/cbdv.202200632] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/09/2022] [Indexed: 11/08/2022]
Abstract
The current pandemic threat presented by viral pathogens like SARS-CoV-2 (COVID-19) suggests that virus emergence and dissemination are not geographically confined. As a result, the quest for antiviral agents has become critical to control this pandemic. In the current study, we provide a novel family of spirocyclic thiopyrimidinone derivatives whose cytotoxicity and antiviral efficacy were investigated against human coronavirus 229E (HCoV-229E) as a model for the Coronaviridae family. We utilized MTT and cytopathic effect (CPE) inhibitory tests on green monkey kidney (vero-E6) cell line. The new molecules showed varied degrees of antiviral activity against the vero-E6 cell line with minimal cytotoxicity. With a high level of a selective index (SI = 14.8), compound 9 showed outstanding inhibitory ability and could effectively suppress the human coronavirus 229E. Molecular dynamics simulation (MD) studies were performed to measure the interaction and stability of the protein-ligand complex in motion. The MD results for the most active compound 9 explored remarkable interactions with the binding pockets of the main protease (Mpor) of SARS-CoV-2 enzyme confirming the results gained from in vitro experiments. ADMET properties were also predicted for all the tested compounds. All these results demonstrated that the novel spirocyclic thiopyrimidinone derivatives would have the potential to be safe, low-cost chemical compounds that might be used as a novel therapeutic option for Coronaviridae viruses like COVID-19.
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Affiliation(s)
- Sherif Shaban Ragab
- National Research Centre, Photochemistry, El behouth Street, 12622, Giza, EGYPT
| | - Ayman M Sweed
- National Research Centre, Chemistry of Natural and Microbial Products Department, 33 El-Behouth St, Dokki, EGYPT
| | - Ahmed Elrashidy
- National Research Centre, Chemistry of Natural and Microbial Products Department, 33 El-Behouth St, Dokki, EGYPT
| | - Abdou K Allayeh
- National Research Centre, Environment and Climate Change Institute,, 33 El-Behouth St, Dokki, EGYPT
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Hussein EM, El Guesmi N, Ahmed SA. Exploiting a multicomponent domino reaction strategy for the tailoring of versatile environmentally sensitive fluorophore-based nicotinonitriles incorporating pyrene and fluorene moieties. RSC Adv 2019; 9:40118-40130. [PMID: 35541404 PMCID: PMC9076224 DOI: 10.1039/c9ra09379f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 11/21/2019] [Indexed: 01/02/2023] Open
Abstract
A simplistic and highly effective protocol for the synthesis of a new class of poly-functionalized innovative nicotinonitriles incorporating pyrene and/or fluorene moieties has been developed through the domino four-component condensation reaction of 1-(pyren-1-yl)ethanone/1-(9H-fluoren-2-yl)ethanone, numerous aromatic aldehydes, and 3-oxo-3-(pyren-1-yl)propanenitrile/3-(9H-fluoren-2-yl)-3-oxopropanenitrile and ammonium acetate in acetic acid as a reaction medium. The advantages of this approach are the short reaction time, excellent yield, and the easy experimental workup that affords substrate diversity and operative competence under metal-free reaction conditions for the formation of C–C and C–N bonds. The substituent effects on the photophysical property-based absorption and the emission of the synthesized compounds in dichloromethane have been well-investigated. Strong absorption quenching of around 100 nm was observed when substitution of the benzene ring at the C4-position of the pyridine moiety occurred with an electron-donating (–N(CH3)2) group. All of the newly synthesized nicotinonitrile derivatives showed strong blue-green fluorescence emission with maxima in the range between 420–630 nm. These highly pronounced emission spectra will help this family of compounds to find application in many areas and the field of materials science. A simplistic and highly effective protocol for the synthesis of a new class of poly-functionalized innovative nicotinonitriles incorporating pyrene and/or fluorene moieties has been developed through the domino four-component condensation reaction.![]()
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Affiliation(s)
- Essam M Hussein
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia .,Department of Chemistry, Faculty of Science, Assiut University 71516 Assiut Egypt
| | - Nizar El Guesmi
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia .,Département de Chimie, Faculté des Sciences de Monastir, Avenue de L'Environnement 5019 Monastir Tunisia
| | - Saleh A Ahmed
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia .,Department of Chemistry, Faculty of Science, Assiut University 71516 Assiut Egypt
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Hussein EM, Moussa Z, El Guesmi N, Ahmed SA. Facile access to regio- and stereoselective synthesis of highly functionalized spiro[indoline-3,2'-pyrrolidines] incorporating a pyrene moiety: experimental, photophysical and theoretical approach. RSC Adv 2018; 8:24116-24127. [PMID: 35539188 PMCID: PMC9081859 DOI: 10.1039/c8ra04312d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 06/14/2018] [Indexed: 11/29/2022] Open
Abstract
The regio- and stereochemical polar [3 + 2] cycloaddition of azomethine ylides, which were generated in situ by the reaction of isatin and sarcosine or benzylamine, with (E)-3-aryl-1-(pyren-1-yl)prop-2-en-1-ones as dipolarophiles, was studied using experimental and theoretical methods. The chemical structures and relative configurations of all products have been fully established by 1D and 2D homonuclear and heteronuclear correlation NMR spectrometry. The effects of the electronic and steric factors of the reactions were discussed. The photophysical properties of the synthesized spiro[indoline-3,2'-pyrrolidin]-2-ones and 5'-phenyl-spiro[indoline-3,2'-pyrrolidin]-2-ones were studied. The mechanism of the reactions was investigated using global and local reactivity indices and frontier molecular orbital (FMO) analysis at the B3LYP/6-31G level of theory. The relationship between the electrophilicity index ω of the dipolarophiles and the Hammett constant σ p has been studied. The theoretical scale of reactivity correctly explains the electrophilic activation/deactivation effects promoted by electron-withdrawing and electron-releasing substituents in the para-position of the dipolarophiles.
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Affiliation(s)
- Essam M Hussein
- Chemistry Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science, Assiut University 71516 Assiut Egypt
| | - Ziad Moussa
- Department of Chemistry, Faculty of Science, Taibah University P.O. Box 30002 Almadinah Almunawarrah Saudi Arabia
| | - Nizar El Guesmi
- Chemistry Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia
- Département de chimie, Faculté des Sciences de Monastir, Avenue de l'Environnement 5019 Monastir Tunisia
| | - Saleh A Ahmed
- Chemistry Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science, Assiut University 71516 Assiut Egypt
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Al-Shareef HF, Elhady HA, Aboellil AH, Hussein EM. Ammonium chloride catalyzed synthesis of novel Schiff bases from spiro[indoline-3,4'-pyran]-3'-carbonitriles and evaluation of their antimicrobial and anti-breast cancer activities. SPRINGERPLUS 2016; 5:887. [PMID: 27386335 PMCID: PMC4920782 DOI: 10.1186/s40064-016-2458-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 05/27/2016] [Indexed: 11/24/2022]
Abstract
Background Indolinone and spiro-indoline derivatives have been employed in the preparation of different important therapeutic compounds required for treatment of anticonvulsants, antibacterial, Antitubercular, and anticancer activities. Schiff bases have been found to possess various pharmacological activities such as antitubercular, plant growth inhibiting, insecticsidal, central nerve system depressant, antibacterial, anticancer, anti-inflammatory, and antimicrobial. Mannich bases have a variety of biological activities such as antibacterial and antifungal activities. Results In this study, a green, rapid and efficient protocol for the synthesis of a new series of Schiff bases from spiro[indoline-3,4′-pyran]-3′-carbonitrile derivatives using ammonium chloride as a very inexpensive and readily available reagent. The prepared compounds were assessed in vitro for their antimicrobial activity. Also, the cytotoxic activity of the prepared compounds was assessed in vitro against human cells line MCF7 breast cancer. Conclusion Good activity was distinguished for Schiff bases from spiro[indoline-3,4′-pyran]-3′-carbonitriles, with some members recorded higher antimicrobial and anti-breast cancer activities.Novel Schiff bases from spiro[indoline-3,4′-pyran]-3′-carbonitriles ![]()
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Affiliation(s)
- Hossa F Al-Shareef
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Heba A Elhady
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia ; Department of Chemistry, Faculty of Science (Girl's), Al-Azhar University, Cairo, Egypt
| | - Amany H Aboellil
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt
| | - Essam M Hussein
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia ; Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71516 Egypt
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Synthesis of some novel 6′-(4-chlorophenyl)-3,4′-bipyridine-3′-carbonitriles: assessment of their antimicrobial and cytotoxic activity. ACTA ACUST UNITED AC 2015. [DOI: 10.1515/znb-2015-0065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A series of novel substituted 6′-(4-chlorophenyl)-3,4′-bipyridine-3′-carbonitriles with incorporated pyrazole and/or triazole moieties have been synthesized using 2-(6′-(4-chlorophenyl)-3′-cyano-3,4′-bipyridin-2′-yloxy)acetohydrazide (3) as starting material. Also, the key intermediate 3 reacted with aromatic aldehydes and tosyl chloride to give the corresponding Schiff bases and tosyl hydrazide derivatives, respectively. The antimicrobial of these newly synthesized compounds was evaluated against Bacillus subtilis as Gram-positive bacteria and Trichoderma viride as a fungus; some of these compounds such as 5, 6, 7, 8, 10, 12, and 14 showed excellent activities as antimicrobial agents. Moreover, the cytotoxic activity of the most active compounds was assessed in vitro against human tumor liver cancer cell line (HEPG2); compounds 8, 10, 13a, and 14 showed potent activities relative to Doxorubicin which was used as a reference standard drug in this study.
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Hussein EM, Masaret GS, Khairou KS. Efficient synthesis and antimicrobial evaluation of some Mannich bases from 2-arylidine-1-thia-4-azaspiro[4.5]decan-3-ones. Chem Cent J 2015; 9:25. [PMID: 25995769 PMCID: PMC4438201 DOI: 10.1186/s13065-015-0101-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 04/29/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Thiazolidinone, has been employed in the preparation of different important drugs required for treatment of inflammations, bacterial infections, and hypertension. Mannich bases have been shown to exhibit diverse biological activities, such as antibacterial, and antifungal activities. Spiroheterocycles including thiazolidine moiety have antimicrobial activity. RESULTS In this study, a novel, rapid, and efficient protocol is developed for the synthesis of various 2-arylidine-1-thia-4-azaspiro[4.5]decan-3-ones using sodium dodecylbenzene sulfonate (DBSNa) as an inexpensive and readily available reagent in acetic acid at room temperature. High yields, easy work-up, and short reaction times are advantages of this procedure. The synthesized arylidines were undergone Mannich reaction with formaldehyde and secondary amines in absolute ethanol at room temperature to afford the corresponding N-Mannich bases. All prepared Mannich bases were evaluated for their antimicrobial activity. CONCLUSIONS Good activity was noted for Mannich bases from 2-arylidine-1-thia-4-azaspiro[4.5]decan-3-ones, with some members recorded higher antimicrobial activity. Graphical abstractSynthesis of Mannich bases of 2-arylidine-1-thia-4-azaspiro[4.5]decan-3-ones.
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Affiliation(s)
- Essam M Hussein
- />Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
- />Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71516 Egypt
| | - Ghada S Masaret
- />Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Khalid S Khairou
- />Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
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Hussein EM. Ammonium chloride-catalyzed four-component sonochemical synthesis of novel hexahydroquinolines bearing a sulfonamide moiety. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015010091] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Affiliation(s)
- Essam M. Hussein
- a Department of Chemistry, Faculty of Science , Assiut University , Assiut , Egypt
- b Department of Chemistry, Faculty of Applied Sciences , Umm Al-Qura University , Makkah , Saudi Arabia
| | - Khalid S. Khairou
- b Department of Chemistry, Faculty of Applied Sciences , Umm Al-Qura University , Makkah , Saudi Arabia
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Abdel-Mohsen SA, Hussein EM. A green synthetic approach to the synthesis of Schiff bases from 4-amino-2-thioxo-1,3-diazaspiro[5.5]undec-4-ene-5-carbonitrile as potential anti-inflammatory agents. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2014. [DOI: 10.1134/s1068162014030029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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