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Salem ME, Abdullah AH, Zaki MEA, Abdelhamid IA, Elwahy AHM. Utility of 2-Chloro- N-arylacetamide and 1,1'-(Piperazine-1,4-diyl)bis(2-chloroethanone) as Versatile Precursors for Novel Mono- and Bis[thienopyridines]. ACS OMEGA 2024; 9:10146-10159. [PMID: 38463260 PMCID: PMC10918660 DOI: 10.1021/acsomega.3c06653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/24/2024] [Accepted: 02/05/2024] [Indexed: 03/12/2024]
Abstract
A series of novel thieno[2,3-b]pyridines linked to N-aryl carboxamides or (carbonylphenoxy)-N-(aryl)acetamides, as well as bis(thieno[2,3-b]pyridines) linked to piperazine core via methanone or carbonylphenoxyethanone units, were synthesized by treating the appropriate chloroacetyl- or bis-bromoacetyl derivatives with 2-mercaptonicotinonitrile derivatives in ethanolic sodium ethoxide at reflux. The spectral data were used to determine the compositions of novel compounds.
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Affiliation(s)
- Mostafa E Salem
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Abbas H Abdullah
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Magdi E A Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Ismail A Abdelhamid
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Ahmed H M Elwahy
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
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2
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Fahim AM, Elshikh MS, Darwish NM. Synthesis, Antitumor Activity, Molecular Docking and DFT Study of Novel Pyrimidiopyrazole Derivatives. Curr Comput Aided Drug Des 2021; 16:486-499. [PMID: 31288728 DOI: 10.2174/1573409915666190710094425] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/30/2019] [Accepted: 06/15/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND In this investigation, 2-cyano-N-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl) acetamide (3) reacts with dimethylformamide dimethyl acetal (DMF-DMA) to afford the corresponding (E)- 2-cyano-3-(dimethylamino)-N-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acrylam-ide (4) utilizing microwave irradiation. The condensation reactions of acrylamide derivative 4 with hydrazine derivatives obtain pyrazole derivatives 6a and 6b; respectively. The synthesized compounds demonstrate in vitro antitumor activity against liver tumor cell line HepG2. Furthermore, additional studies were carried out on the most effective compound 6b to evaluate the potential interaction against 4hdq synthase complex with ΔE= -4.5Kcal/mol and with short distance = 1.727Å and 2.027Å, respectively. The comprehensive theoretical studies of compounds 6a and 6b is based on bond length, bond angles and energy gap HOMO-LUMO. In addition, the vibrational frequencies of optimized compounds 6a and 6b were examined through DFT/B3LYP/6+31G(d) basis set. METHODS In this research, synthesis of novel pyrimidiopyrazole derivatives calculated the computational studies to find suitable drug-receptor interactions and biological activity. RESULTS AND DISCUSSION The synthesized pyrimidiopyrazole derivative 6b exhibited high antitumor activity IC50 =12.6 μg/ml and interacted it with 4hdq synthase complex with ΔE=-4.5Kcal/mol and with short distance = 1.727Å and 2.027Å. Furthermore, the optimized compounds utilize Gaussian 09W. CONCLUSION In the optimized pyrimidiopyrazole derivatives, 6b showed better antitumor activity HeG-2 against 5-flurouracil due to its energy and confirmed more potent of hydrogen bond interaction with protein pocket.
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Affiliation(s)
- Asmaa M Fahim
- Green Chemistry Department, National Research Center, Dokki, P.O. Box. 12622 Cairo, Egypt
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box. 2455, Riyadh 11451, Saudi Arabia
| | - Noura M Darwish
- Biochemistry Department, Faculty of Science Ain Shams University, Abbasaya, P.O. Box. 11566, Cairo, Egypt
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Mekky AEM, Ahmed MSM, Sanad SMH, Abdallah ZA. Bis(benzofuran-enaminone) hybrid possessing piperazine linker: Versatile precursor for microwave assisted synthesis of bis(pyrido[2',3':3,4]pyrazolo[1,5-a]pyrimidines). SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2020.1867745] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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Sanad SMH, Mekky AEM. Efficient synthesis and characterization of novel bis‐heterocyclic derivatives and
benzo‐fused
macrocycles containing oxazolone or imidazolone subunits. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
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5
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Novel bis(pyrazole-benzofuran) hybrids possessing piperazine linker: Synthesis of potent bacterial biofilm and MurB inhibitors. Bioorg Chem 2020; 102:104094. [PMID: 32711085 DOI: 10.1016/j.bioorg.2020.104094] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/26/2020] [Accepted: 07/09/2020] [Indexed: 12/12/2022]
Abstract
Novel 1,4-bis[(2-(3-(dimethylamino)-1-oxoprop-2-en-1-yl)benzofuran-5-yl)methyl]piperazine was prepared and used as a key synthon for the this study. Therefore, 1,3-dipolar cycloaddition of this synthon with the appropriate hydrazonyl chlorides afforded a new series of bis(1,3,4-trisubstituted pyrazoles), linked via piperazine moiety. Furthermore, it reacted with hydrazine hydrate and phenyl hydrazine individually to afford the corresponding 1,4-bis[(2-(1H-pyrazolyl)benzofuran-5-yl)methyl]piperazines. Different bacterial strains and cell lines were selected to study the in-vitro antibacterial and cytotoxic activities for the new derivatives. 1,4-Bis[((2-(3-acetyl-1-(4-nitrophenyl)-1H-pyrazole-4-yl)carbonyl)benzofuran-5-yl)methyl]piperazine 5e showed the best antibacterial efficacies with MIC/MBC values of 1.2/1.2, 1.2/2.4 and 1.2/2.4 μM against each of E. coli, S. aureus and S. mutans strains, respectively. In addition, the inhibitory activity of some new bis(pyrazoles) as MRSA and VRE inhibitors were studied. Compound 5e gave the best inhibitory activity with MIC/MBC values of 18.1/36.2, 9.0/18.1 and 18.1/18.1 µM, respectively, against MRSA (ATCC:33591 and ATCC:43300) and VRE (ATCC:51575) bacterial strains, respectively. Compound 5e showed more effective biofilm inhibition activities than the reference Ciprofloxacin. It showed IC50 values of 3.0 ± 0.05, 3.2 ± 0.08 and 3.3 ± 0.07 μM against S. aureus, S. mutans and E. coli strains, respectively. Furthermore, experimental study showed excellent inhibitory activities of 1,4-bis[((2-(3-substituted-1-aryl-1H-pyrazole-4-yl)carbonyl)benzofuran-5-yl)methyl]piperazine derivatives, attached to p-NO2 or p-Cl groups, against MurB enzyme. Compound 5e gave the best MurB inhibitory activity with IC50 value of 3.1 μM. The in-silico study was performed to predict the capability of new derivatives as potential inhibitors of MurB enzyme.
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Sanad SMH, Ahmed AAM, Mekky AEM. Synthesis, in-vitro and in-silico study of novel thiazoles as potent antibacterial agents and MurB inhibitors. Arch Pharm (Weinheim) 2020; 353:e1900309. [PMID: 31967349 DOI: 10.1002/ardp.201900309] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/20/2019] [Accepted: 12/28/2019] [Indexed: 11/07/2022]
Abstract
Efficient procedures are herein reported for the synthesis of novel hybrid thiazoles via a one-pot three-component protocol. The protocol involves the reaction of novel aldehyde, thiosemicarbazide and halogen-containing reagents in solvent- and catalyst-free conditions. The structures of the new thiazoles were elucidated by elemental analyses and spectroscopic data. The in-vitro antibacterial screening and MurB enzyme inhibition assays were performed for the novel thiazoles. The thiazol-4(5H)-one derivative 6d, with p-MeO, exhibits the best antibacterial activities with minimum inhibitory concentration values of 3.9, 3.9, 7.8, and 15.6 μg/ml against Staphylococcus aureus, Klebsiella pneumoniae, Streptococcus mutans, and Escherichia coli, respectively, as compared to the reference antibiotic drugs. It also exhibits the highest inhibition of the MurB enzyme with an IC50 of 8.1 μM. The structure-activity relationship was studied to determine the effect of the structures of the newly prepared molecules on the strength of the antibacterial activities. Molecular docking was also performed to predict the binding modes of the new thiazoles in the active sites of the E. coli MurB enzyme.
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Affiliation(s)
- Sherif M H Sanad
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Ahmed A M Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt.,Basic Science Department, Jouf University, Sakaka, Kingdom of Saudi Arabia
| | - Ahmed E M Mekky
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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Synthesis, antimicrobial evaluation, molecular docking and theoretical calculations of novel pyrazolo[1,5-a]pyrimidine derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127025] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Mekky AEM, Sanad SMH, Ahmed AAM. Microwave Assisted Three Component One‐pot Synthesis of Bis(aminoazolo[1,5‐
a
]pyrimidines) and Bis(aminoazino[1,2‐
a
]benzimidazoles) Bearing Thiazole Moiety. ChemistrySelect 2019. [DOI: 10.1002/slct.201902828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ahmed E. M. Mekky
- Chemistry DepartmentFaculty of ScienceCairo University Giza 12613 Egypt
| | | | - Ahmed A. M. Ahmed
- Chemistry DepartmentFaculty of ScienceCairo University Giza 12613 Egypt
- Preparatory Year DeanshipJouf University Sakaka, KSA
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9
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Farag AM, Fahim AM. Synthesis, biological evaluation and DFT calculation of novel pyrazole and pyrimidine derivatives. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Fischer G. Recent advances in 1,2,4-triazolo[1,5-a]pyrimidine chemistry. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.10.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Shaabani A, Nazeri MT, Afshari R. 5-Amino-pyrazoles: potent reagents in organic and medicinal synthesis. Mol Divers 2018; 23:751-807. [PMID: 30552550 DOI: 10.1007/s11030-018-9902-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/04/2018] [Indexed: 12/31/2022]
Abstract
5-Amino-pyrazoles have proven to be a class of fascinating and privileged organic tools for the construction of diverse heterocyclic or fused heterocyclic scaffolds. This review presents comprehensively the applications of 5-amino-pyrazoles as versatile synthetic building blocks in the synthesis of remarkable organic molecules with an emphasis on versatile functionalities. Following a brief introduction of synthesis methods, planning strategies to construct organic compounds, particularly diverse heterocyclic scaffolds, such as poly-substituted heterocyclic compounds and fused heterocyclic compounds via 5-amino-pyrazoles, have been summarized. Fused heterocycles are classified as bicyclic, tricyclic, tetracyclic, and spiro-fused pyrazole derivatives. These outstanding compounds synthesized via wide variety of approaches include conventional reactions, one-pot multi-component reactions, cyclocondensation, cascade/tandem protocols, and coupling reactions. 5-Amino-pyrazoles represent a class of promising functional reagents, similar to the biologically active compounds, highlighted with diverse applications especially in the field of pharmaceutics and medicinal chemistry. Notably, this critical review covers the articles published from 1981 to 2018.
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Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
| | - Ronak Afshari
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
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