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Ragab A, Ibrahim SA, Aboul-Magd DS, Baren MH. One-pot synthesis of pyrazolo[4,3- d]thiazole derivatives containing α-aminophosphonate as potential Mur A inhibitors against MDR pathogens with radiosterilization and molecular modeling simulation. RSC Adv 2023; 13:34756-34771. [PMID: 38035237 PMCID: PMC10685179 DOI: 10.1039/d3ra07040a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/14/2023] [Indexed: 12/02/2023] Open
Abstract
The present study involves the synthesis of a new series of α-aminophosphonate derivatives in good yields with a simple workup via the Kabachnik-Fields reaction using lithium perchlorate (LiClO4) as a catalyst to facilitate the reaction. All the newly synthesized compounds were confirmed using various physical, spectroscopic, and analytical data, and the obtained results correlated with the proposed molecular structure. The in vitro antimicrobial activities of each compound were evaluated against different clinical isolates. The results indicated that among these derivatives, two compounds (5a and 5b) were the most active and displayed potent activity with MICs in the range from 0.06 to 0.25 μg mL-1 compared with fosfomycin and fluconazole as standard antibiotics. Moreover, the synthesized phosphonates displayed a broad spectrum of bactericidal and fungicidal activities depending on MICs, MBCs/MFCs, and the time-kill kinetics. In addition, the checkerboard assay showed synergistic and partial synergistic activities between the active compounds combined with fosfomycin and fluconazole. Furthermore, the SEM images showed distinct ruptures of the OM integrity of the FOS-R E. coli at their MICs, which was further indicated by the increased EtBr accumulation within the bacterial cells. Moreover, active derivatives revealed MurA inhibitory activity with IC50 values of 3.8 ± 0.39 and 4.5 ± 0.23 μM compared with fosfomycin (IC50 = 12.7 ± 0.27 μM). To our surprise, exposing 5a and 5b compounds to different gamma radiation doses revealed that 7.0 kGy eradicated the microbial load completely. Finally, the results of quantum chemical study supported the binding mode obtained from the docking study performed inside the active site of MurA (PDB: 1UAE), suggesting that these phosphonates may be promising safe candidates for MDR infection therapy clinical trials with no toxic effects on the normal human cells.
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Affiliation(s)
- Ahmed Ragab
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University Nasr City Cairo 11884 Egypt
| | - Seham A Ibrahim
- Chemistry Department, Faculty of Science, Tanta University Tanta 31527 Egypt
| | - Dina S Aboul-Magd
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority Egypt
| | - Mohamed H Baren
- Chemistry Department, Faculty of Science, Tanta University Tanta 31527 Egypt
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Noser AA, Ibrahim SA, Saad-Allah KM, Salem MM, Baren MH. Facile One-Pot Three Component Synthesis, Characterization, and Molecular Docking Simulations of Novel α-Aminophosphonate Derivatives Based Pyrazole Moiety as Potential Antimicrobial Agent. Chem Biodivers 2023; 20:e202301035. [PMID: 37647333 DOI: 10.1002/cbdv.202301035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/01/2023]
Abstract
An efficient method has been developed for the synthesis of novel α-aminophosphonates (AAP) (3 a-m) through a one-pot three-component reaction of 1,3-disubstituted-1H-pyrazol-5-amine, aromatic aldehydes, and phosphite using lithium perchlorate as catalyst. All newly synthesized compounds were characterized via different spectroscopic techniques. The synthesized compounds' mode of action was investigated using molecular docking against the outer membrane protein A (OMPA) and exo-1,3-β-glucanase, with interpreting their pharmacokinetics aspects. The results of the antimicrobial effectiveness of these compounds revealed a broad spectrum of their biocidal activity and this in-vitro study was in line with the in- silico results. Additionally, it has been demonstrated that these compounds exhibited a minimum inhibitory concentration (MIC) with significant activity at low concentrations (7.5-30.0 mg/mL). Further, the radical scavenging (DPPH* ) activity of the synthesized compounds fluctuated, with compounds 3 h, 3 a, and 3 f showing the highest antioxidant activity. Overall, the formulated compounds can be employed as antimicrobial and antioxidant agents in medical applications.
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Affiliation(s)
- Ahmed A Noser
- Organic Chemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Seham A Ibrahim
- Organic Chemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Khalil M Saad-Allah
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Maha M Salem
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mohamed H Baren
- Organic Chemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
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Tsacheva I, Todorova Z, Momekova D, Momekov G, Koseva N. Pharmacological Activities of Schiff Bases and Their Derivatives with Low and High Molecular Phosphonates. Pharmaceuticals (Basel) 2023; 16:938. [PMID: 37513849 PMCID: PMC10386503 DOI: 10.3390/ph16070938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
This review paper is focused on the design of anthracene and furan-containing Schiff bases and their advanced properties as ligands in complex transition metal ions The paper also provides a brief overview on a variety of biological applications, namely, potent candidates with antibacterial and antifungal activity, antioxidant and chemosensing properties. These advantageous properties are enhanced upon metal complexing. The subject of the review has been extended with a brief discussion on reactivity of Schiff bases with hydrogen phosphonates and the preparation of low and high molecular phosphonates, as well as their application as pharmacological agents. This work will be of interest for scientists seeking new challenges in discovering advanced pharmacological active molecules gaining inspiration from the versatile families of imines and aminophosphonates.
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Affiliation(s)
- Ivelina Tsacheva
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, 1113 Sofia, Bulgaria
| | - Zornica Todorova
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, 1113 Sofia, Bulgaria
| | - Denitsa Momekova
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Georgi Momekov
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Neli Koseva
- Bulgarian Academy of Sciences, 1 "15 Noemvri" Str., 1040 Sofia, Bulgaria
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Shaik YH, Chintha V, Gundluru M, Sarva S, Cirandur SR. An efficient nano-FGT catalyzed green synthesis of α-aminophosphonates and evaluation of their antioxidant, anti-inflammatory activity and molecular docking studies. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.2007402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yasmin Haroon Shaik
- Department of Chemistry, Sri Venkateswara University, Tirupathi, A.P., India
| | | | - Mohan Gundluru
- Department of Chemistry, Sri Venkateswara University, Tirupathi, A.P., India
- DST-PURSE Centre, Sri Venkateswara University, Tirupathi, A.P., India
| | - Santhisudha Sarva
- Department of Chemistry, Sri Venkateswara University, Tirupathi, A.P., India
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Litim B, Djahoudi A, Meliani S, Boukhari A. Synthesis and potential antimicrobial activity of novel α-aminophosphonates derivatives bearing substituted quinoline or quinolone and thiazole moieties. Med Chem Res 2021; 31:60-74. [PMID: 34744408 PMCID: PMC8560884 DOI: 10.1007/s00044-021-02815-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/17/2021] [Indexed: 12/19/2022]
Abstract
To develop novel antimicrobial agents, and based on the biologically active heterocyclic quinoline and thiazole substituted, a series of novel α-aminophosphonates (9a–h) and (10i–l) derivatives that incorporated quinoline or quinolone, and coumarylthiazole or 5-phenylthiazol-2-amine moieties were designed and synthesized via Kabachnik–Fields reaction in the presence of ionic liquid under ultrasound irradiation. All the new compounds were obtained in good yield with a simple workup and were confirmed using various spectroscopic methods. The in vitro antimicrobial activity of all synthesized compounds were screened in terms of MIC values against the selected strains of Gram-negative and Gram-positive bacteria and two fungal strains using the broth micro-dilution method. The results showed that most of the tested compounds showed moderate inhibitory activities against both Gram‐positive and ‐negative bacteria compared with reference drugs. The following compounds 9e, 9g, 9h, 9i and 9f, 9g, 9h, 10k, 10l are the most active against Gram-positive and Gram-negative bacteria strains, respectively, with MIC values ranging between 0.25 and 128 μg/mL. The synthesized compounds 9b, 9c, 9f, 9g, 9h, 10k, and 10l exhibited excellent antifungal inhibition with MIC values ranging between 0.25 and 32 μg/mL. Structure–activity relationship revealed that the presence of coumarylthiazole moiety and hydroxyl in the quinoline group increased the inhibitory activity against microbial strains pathogens. These results confirm that the synthesized compounds can be potential antimicrobial drugs candidate. ![]()
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Affiliation(s)
- Bilal Litim
- Laboratory of Organic Synthesis, Modeling and Optimization of Chemical Processes, Department of Chemistry, Faculty of Sciences, Badji Mokhtar-Annaba University, BP 12, 23000 Annaba, Algeria
| | - Abdelghani Djahoudi
- Laboratory of Microbiology, Department of Pharmacy, Faculty of Medicine, Badji Mokhtar-Annaba University, BP 205 Annaba, Algeria
| | - Saida Meliani
- Laboratory of Microbiology, Department of Biochemistry, Faculty of Sciences, Badji Mokhtar-Annaba University, BP 205 Annaba, Algeria
| | - Abbes Boukhari
- Laboratory of Organic Synthesis, Modeling and Optimization of Chemical Processes, Department of Chemistry, Faculty of Sciences, Badji Mokhtar-Annaba University, BP 12, 23000 Annaba, Algeria
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Shaik NR, Kerru N, Chintha V, Khatana K, Sirigiri DNR, Chinnam S, Chamarthi NR. Synthesis of novel alkylphosphonates as promising antimicrobial drugs: Computational molecular docking studies. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1904925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nayab Rasool Shaik
- Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
| | - Nagaraju Kerru
- Department of Chemistry, GITAM School of Sciences, GITAM University, Bengaluru, Karnataka, India
| | - Venkataramaiah Chintha
- Division of Molecular Biology, Department of Zoology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
- Department of Zoology, Sri Venkateswara Vedic University, Tirupati, Andhra Pradesh, India
| | - Kavita Khatana
- Department of Chemistry, School of Basic and Applied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | | | - Sampath Chinnam
- Department of Chemistry, B.M.S. College of Engineering, Bengaluru, Karnataka, India
| | - Naga Raju Chamarthi
- Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
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Synthesis and potent antimicrobial activity of novel coumarylthiazole α-aminophosphonates derivatives. Mol Divers 2021; 26:1161-1174. [PMID: 34117993 DOI: 10.1007/s11030-021-10242-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/28/2021] [Indexed: 12/24/2022]
Abstract
Herein, we reported a novel series of α-aminophosphonates derivatives (IV)a-m bearing an important pharmacophore coumarylthiazole moiety. All the new compounds have been synthesized via Kabachnik-Fields reaction under ultrasonic irradiation. The products were obtained in good yield with a simple workup and were confirmed using various spectroscopic methods. All these compounds (IV)a-m were screened for their in vitro for antimicrobial activity against thirteen Gram-negative bacteria and five Gram-positive bacteria and Candida albicans strains. The results showed that all the synthesized compounds exhibited moderate antibacterial activities against both references and multidrug-resistant and antifungal strains. The compound (IV)e showed the highest activities against all pathogens of the tested microbial strains with MIC of 0.125 μg/mL. The compounds (IV)h, (IV)f, (IV)b, and (IV)d exhibited moderate and promising activities with MIC of 0.125 μg/mL. Structure-activity relationship revealed that inhibitory activity of the synthesized compounds is related to the type of the substituted group on phenyl rings, and these results showed that the electron-donating groups at ortho and para positions have a high relationship increasing antimicrobial activities than the electron-withdrawing groups. These results confirm that coumarylthiazole α-aminophosphonates compounds can be potential antimicrobial drugs candidate.
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Sivala MR, Chintha V, Potla KM, Kerru N, Chinnam S, Devineni SR, Salam J. J. T, Chinnam S, Chamarthi NR. Design and synthesis of novel 1,3,2-benzoxazaphosphinine-2-one derivatives: an in vitro biological evaluation and in silico approaches. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1871346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Venkataramaiah Chintha
- Department of Zoology, Division of Molecular Biology, Sri Venkateswara University, Tirupati, India
- Department of Zoology, Faculty of Humanities and Sciences, Sri Venkateswara Vedic University, Tirupati, India
| | - Krishna Murthy Potla
- Department of Chemistry, Bapatla Engineering College (Autonomous), Acharya Nagarjuna University Post Graduate Research Centre, Bapatla, India
| | - Nagaraju Kerru
- Department of Chemistry, GITAM School of Sciences, GITAM University, Bengaluru, India
| | | | - Subba Rao Devineni
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, PR China
| | - Titinchi Salam J. J.
- Department of Chemistry, University of the Western Cape, Cape Town, South Africa
| | - Sampath Chinnam
- Department of Chemistry, B.M.S. College of Engineering, Bengaluru, India
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Sivala MR, Chintha V, Potla KM, Chinnam S, Chamarthi NR. In silico docking studies and synthesis of new phosphoramidate derivatives of 6-fluoro-3-(piperidin-4-yl)benzo[d]isoxazole as potential antimicrobial agents. J Recept Signal Transduct Res 2020; 40:486-492. [DOI: 10.1080/10799893.2020.1752719] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Venkataramaiah Chintha
- Division of Molecular Biology, Department of Zoology, Sri Venkateswara University, Tirupati, India
- Department of Zoology, Sri Venkateswara Vedic University, Tirupati, India
| | - Krishna Murthy Potla
- Department of Chemistry, Bapatla Engineering College (Autonomous), Acharya Nagarjuna University Post Graduate Research Centre, Bapatla, India
| | - Sampath Chinnam
- Department of Chemistry, B.M.S. College of Engineering, Bengaluru, India
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