In-silico Studies, Synthesis and Preliminary Biological Evaluation of New Fluoroquinolones-antioxidants Hybrid Compounds

Authors

  • Shahad R. Abid-Alkhalik Ministry of Health, Baghdad, Iraq
  • Tagreed N-A Omar Department of Pharmaceutical Chemistry, College of Pharmacy, University of Baghdad, Baghdad, Iraq.

DOI:

https://doi.org/10.31351/vol34iss4pp85-102

Abstract

The present study aims to facilitate the development of new agents with better properties specifically, we focus on modifying the basic structure of quinolones; by introducing new functionality at its C3 position. For this purpose, a series of new conjugation derivatives (IIa-Vb) were designed and synthesized by esterification of quinolones (ciprofloxacin, gatifloxacin, nalidixic acid and norfloxacin) with two types of antioxidants (a: menthol and b: umbelliferone) at their carboxylic group at the C3 position which was replaced by an ester group through a glycol linker. The synthesized compounds were checked and characterized for their purity and chemical structure by spectral techniques (NMR, ATR-FTIR) also they were examined for their Pharmacological activities. In vivo, the anti-inflammatory effect of (IIa-Vb) compounds was estimated using a rat paw edema model and showed good activity for the end compounds IIa and IId, and their anti-inflammatory and antimicrobial effects were subsequently evaluated virtually-molecularly analyzed ; all prepared compounds show-interesting activity compared to the DMSO control group (solvent and control). The new conjugation derivatives were further tested about their antimicrobial activity against both grams positive and gram-negative bacteria , using the well diffusion method; the results showed that all eight synthesized compounds exhibited significant (high) antibacterial activity against gram-negative bacteria (Escherichia coli) compared to the reference drug (ciprofloxacin): (IIa and IIb) in concentration 50 mg, (IIa , IIb and IIIb) in concentration 25 mg (IIa , IIb , IIIb and Va) in concentration 12.5 mg. Higher inhibition and significant activity against gram-positive bacteria (Staphylococcus aureus) were demonstrated with quinoline derivatives: (IIa) in concentrations 50-25 mg, (IIa and Va) in concentration 12.5 mg. The other tested compounds showed good activity against bacterial species, ranging from equal, moderate to acceptable activity. Also the synthesized compounds shown significant antifungal activity against (Candida albicans) when compared with Fluconazole drug :( IIa, IVb, Va and Vb) in concentration 50 mg, (IIa ,Va and Vb) in concentration 25 mg. ADMET analysis of quasi-active molecules was performed and demonstrated an acceptable drug-like profile and desirable pharmacokinetic properties.

How to Cite

1.
Shahad R. Abid-Alkhalik, Tagreed N-A Omar. In-silico Studies, Synthesis and Preliminary Biological Evaluation of New Fluoroquinolones-antioxidants Hybrid Compounds. Iraqi Journal of Pharmaceutical Sciences [Internet]. 2025 Dec. 20 [cited 2025 Dec. 21];34(4):85-102. Available from: https://www.bijps.uobaghdad.edu.iq/index.php/bijps/article/view/3778

Publication Dates

Received

2024-09-15

Revised

2024-06-18

Accepted

2024-09-08

Published Online First

2025-12-20

References

Spencer AC, Panda SS. DNA Gyrase as a Target for Quinolones, Biomedicines. 2023;11(2):1-27.

Dighe SN, Collet TA. Recent advances in DNA gyrase-targeted antimicrobial agents. Eur J Med Chem. 2020;199:1-104.

Rusu A, Lungu IA, Moldovan OL, et al. Structural characterization of the millennial antibacterial (Fluoro)-quinolones—shaping the fifth generation. Pharmaceutics. 2021;13(8):1–37.

Pham TDM, Ziora ZM, Blaskovich MAT. Quinolone antibiotics. Medchem-comm. 2019;10(10):1719–39.

Brar RK, Jyoti U, Patil RK, Patil HC, Brar RK, Jyoti U, et al. Fluoroquinolone antibiotics: An overview. Adesh Univ J Med Sci Res. 2020.17;2(1):26–30.

Tang K, Zhao H. Quinolone Antibiotics: Resistance and Therapy. Infect Drug Resist. 2023;16:811–20.

Pizzo PA. Management of patients with fever and neutropenia through the arc of time. Ann Intern Med. 2019;170(6):389–97.

Artero A, López-Cruz I, Piles L, et al. Fluoroquinolones Are Useful as Directed Treatment for Complicated UTI in a Setting with a High Prevalence of Quinolone-Resistant Microorganisms. Antibiotics. 2023;12(1):1-9.

Eckmann C, Tulkens PM. Current and future options for treating complicated skin and soft tissue infections: Focus on fluoroquinolones and long-acting lipoglycopeptide antibiotics. J Antimicrob Chemother. 2021;76:IV ,9–22.

Cisse H, Vernet-Garnier V, Hentzien M, et al. Treatment of bone and joint infections caused by Enterobacter cloacae with a fluoroquinolone–cotrimo-xazole combination. Int J Antimicrob Agents. 2019;54(2):245–8.

Tariq MH, Farrukh MJ, Azhar S, Sulaiman S. Advances in Pharmacoepidemio-logy and Drug Safety Safety Review of Quinolone & Fluoroquinolone Contain-ing Medicinal Products : Global Regulatory Scenario and Way Forward, Adv Pharmacoepidemiol Drug Saf 2021 ; 10(1000621):1–4.

Usman J, Hamza AB. Review on the Emergence of Quinolone Resistance Against Salmonella Typhi in Nigeria. Int J Sci. 2022;8(2):1-10.

Yoon YK, Moon C, Kim J, Heo ST, Lee MS, Lee S, et al. Korean Guidelines for Use of Antibiotics for Intra-abdominal Infections in Adults, Infection and Chemotherapy. 2022Vol. 54, 812–853.

Uruén C, García C, Fraile L,Arenas J. How Streptococcus suis escapes antibiotic treatments. Veterinary research. BioMed Central; 2022 . 12;53(1):1-91.

Mansour Elgendy K, Saad Zaky M, Eldin Turky A, et al. Evaluation of the derivative spectrophotometric technique for the quantification of ofloxacin and ciprofloxacin hydrochloride in their bulk drugs and pharma-ceutical dosage forms. Results Opt .2023;12:1-10.

Lungu IA, Moldovan OL, Biriș V, et al. Fluoroquinolones Hybrid Molecules as Promising Antibacterial Agents in the Fight against Antibacterial Resistance. Pharmaceutics.2022;14(8):1-40.

Matada BS, Pattanashettar R, Yernale NG. A comprehensive review on the biological interest of quinoline and its derivatives. Bioorganic Med Chem . 2021;32:1-25.

Gao F, Wang P, Yang H, et al. Recent developments of quinolone-based derivatives and their activities against Escherichia coli. Eur J Med Chem. 2018;157:1-68.

Yadav P, Shah K. Quinolines, a perpetual, multipurpose scaffold in medicinal chemistry. Bioorg Chem 2021; 109:1-42.

Mishra P, Kumar A, Sharma UC, Saxena A, Prabahar AE, Gupta S, et al. Quinoline derivative and their pharma-cological & medicinal potential. Int J Health Sci. 2022;6:1-25.

Li ZH, Yin LQ, Zhao DH, et al. SAR studies of quinoline and derivatives as potential treatments for Alzheimer’s disease. Arab J Chem. 2023;16(2):1-23.

Al-Ostoot FH, Zabiulla, Salah S, Khanum SA. Recent investigations into syn-thesis and pharmacological activities of phenoxy acetamide and its derivatives (chalcone, indole and quinoline) as possible therapeutic candidates, Journal of the Iranian Chemical Society; 2021.(18): 1-37.

Taman A, Alhusseiny SM, Saleh NE, et al. Effect of a newly synthesized quinoline-based compound (PPQ-8) on murine schistosomiasis mansoni. J Helminthol. 2020;4–11.

Choudhary D, Birle R, Kayande N, Patil S. A Review On Substitution Quinoline Derivatives and its Biological Activity. Int J Res Eng Sci Manag. 2021;4:131–135.

Zhao Y-Q, Li X, Guo H-Y, et al. Application of Quinoline Ring in Structural Modification of Natural Products. Molecules. 2023;28(18):1-69.

Regassa H, Sourirajan A, Kumar V, et al. A Review of Medicinal Plants of the Himalayas with Anti-Prolifer-ative Activity for the Treatment of Various Cancers. Cancers. 2022;14(16):1-35.

Arruda HS, Neri-Numa IA, Kido LA, Maróstica Júnior MR, Pastore GM. Recent advances and possibilities for the use of plant phenolic compounds to manage ageing-related diseases. J Funct Foods. 2020;75:1-35.

Mohammed ZB, Omar TN. Chemical Design, Synthesis And Biological Evaluoation Of Mutual Prodrug of Gabapentin With Different Types Of Phenolic And Alcoholic Antioxidants. Syst Rev Pharm. 2021;12(1):858–868.

Staszowska-Karkut M, Materska M. Phenolic composition, mineral content, and beneficial bioactivities of leaf extracts from black currant (Ribes nigrum l.),raspberry (rubus idaeus), and aronia (aronia melanocarpa). Nutrients. 2020;12(2):1-14.

Rozza AL, Beserra FP, Vieira AJ, et al. The use of menthol in skin wound healing—anti-inflammatory potential, antioxidant defense system stimulation and increased epithelialization. Pharmaceutics. 2021;13(11):1-12.

Cheng H, An X. Cold stimuli, hot topic: An updated review on the biological activity of menthol in relation to inflammation. Front Immunol. 2022;13:1–15.

Cruz LF, Figueiredo GF de, Pedro LP, et al. Umbelliferone (7-hydroxycou-marin): A non-toxic antidiarrheal and anti-ulcerogenic coumarin. Biomed Pharmacother. 2020;129:1-8.

Salau VF, Erukainure OL, Ibeji CU, et al. Umbelliferone stimulates glucose uptake; modulates gluconeogenic and nucleotide-hydrolyzing enzymes activities, and dysregulated lipid metabolic pathways in isolated psoas muscle. J Funct Foods . 2020;67:1-15.

Biondo C. Bacterial Antibiotic Resistance: The Most Critical Pathogens. Pathogens. 2023;12(1):1–14.

Larsson DGJ, Flach CF. Antibiotic resistance in the environment. Nat Rev Microbiol. 2022;20(5):257–269.

Broni E, Striegel A, Ashley C, Sakyi PO, et al. Molecular Docking and Dynamics Simulation Studies Predict Potential Anti-ADAR2 Inhibitors: Implications for the Treatment of Cancer, Neurological, Immunological and Infectious Diseases. Int J Mol Sci 2023;24(7):1-36.

Onifade OF. MAPK domain inhibition : Validation of the anti-angiogenic effects of curcumin from Curcuma longa in NDEA model of liver carcinoma in Wistar rats. :1–19.

Zhong HA, Almahmoud S. Docking and Selectivity Studies of Covalently Bound Janus Kinase 3 Inhibitors. Int J Mol Sci. 2023;24(7):1-18.

Mahalekshmi V, Balakrishnan N, Ajay T , et al. in Silico Molecular Screening and Docking Approaches on Antineoplastic Agent-Irinotecan Towards the Marker Proteins of Colon Cancer. Int J Appl Pharm. 2023;15(5) :84–92.

Komura H, Watanabe R, Mizuguchi K. The Trends and Future Prospective of In Silico Models from the View-point of ADME Evaluation in Drug Discovery. Pharmaceutics. 2023;15(11):1–30.

Mohan A, Rendine N, Mohammed MKS, Jeeva A, et al. Structure-based virtual screening, in silico docking, ADME properties prediction and molecular dynamics studies for the identification of potential inhibitors against SARS-CoV-2 Mpro. Mol Divers .2022;26(3):1645–61.

Sun R, Lu M, Li Q, et al. Design , Synthesis , Bio-activity , and Structure - Activity Relationship ( SAR ) Studies of Novel Benzoylphenylureas Containing Oxime Ether Group. J Agric Food Chem. 2008;56:11376–91.

Redasani VK, Bari SB. Synthesis and evaluation of mutual prodrugs of ibu-profen with menthol, thymol and eugenol. Eur J Med Chem . 2012;56:134–8.

Fayez N, Khalil W, Abdel-Sattar E, Abdel-Fattah AFM. In vitro and in vivo assessment of the anti-inflammatory activity of olive leaf extract in rats. Inflammopharmacology. 2023 ;31(3):1529 –38.

Qiang R, Huang H, Chen J, Shi X, et al. Carbon Quantum Dots Derived from Herbal Medicine as Therapeutic Nanoagents for Rheumatoid Arthritis with Ultrahigh Lubrication and Anti-inflammation. ACS Appl Mater Interfaces. 2023;15(32):38653–64.

Eltom SEM, Abdellatif AAH, Maswadeh H, Al-Omar MS, Abdel-Hafez AA, Mohammed HA, et al. The Anti-Inflammatory Effect of a γ-Lactone Isolated from Ostrich Oil of Struthio camelus (Ratite) and Its Formulated Nano-Emulsion in Formalin-Induced Paw Edema. Molecules. 2021;26(12):1-16.

Al-Nakeeb MR, Omar TNA. Synthesis, characterization and preliminary study of the anti-inflammatory activity of new pyrazoline containing ibuprofen derivatives. Iraqi J Pharm Sci. 2019;28(1):133–9.

Skłodowski K, Chmielewska-Deptuła SJ, Piktel E,et al. Metallic Nanosystems in the Development of Antimicro-bial Strategies with High Antimicrobial Activity and High Biocompatibility. Int J Mol Sci. 2023; 24(3):1-44.

Rodr C, Alonso-calleja C, Garc C, Carballo J, Capita R. Bactericidal Concentration ( MBC ) for Twelve Antimicrobials. Biology. 2022;11:1-16.

Balouiri M, Sadiki M, Ibnsouda SK. Methods for in vitro evaluating anti-microbial activity: A review. J Pharm Anal. 2016;6(2):71–79.

Gonelimali FD, Lin J, Miao W, Xuan J, et al. Antimicrobial properties and mechanism of action of some plant extracts against food pathogens and spoilage microorganisms. Front Microbiol. 2018;9:1–9.

Lourens Robberts FJ, Owusu-Ofori A, Oduro G, Gyampomah TK, Marles N, Fox AT, et al. Rapid, Low-Complexity, Simultaneous Bacterial Group Identification and Antimicrobial Susceptibility Testing Performed Directly on Positive Blood Culture Bottles Using Chromogenic Agar. Am J Trop Med Hyg. 2022;107(6):1302–1307.

Bhalodia NR, Nariya PB, Shukla VJ. Antibacterial and antifungal activity from flower extracts of Cassia fistula L.: An ethnomedicinal plant. Int J PharmTech Res. 2011;3(1):104–109.

González-Pedroza MG, Benítez ART, Navarro-Marchal SA, Martínez-Martínez E, Marchal JA, Boulaiz H, et al. Biogeneration of silver nanoparticles from Cuphea procumbens for biomedical and environmental applications. Sci Rep. 2023;13(1):1–11.

Świątek P, Glomb T, Dobosz A, Gębarowski T, Wojtkowiak K, Jezierska A, et al. Biological Evaluation and Molecular Docking Studies of Novel 1,3,4-Oxadiazole Derivatives of 4,6-Dimethyl-2-sulfanylpyridine-3-car-boxamide. Int J Mol Sci. 2022;23(1):1-25.

Ettahiri W, Salim R, Adardour M, Ech-chihbi E, Yunusa I, Alanazi MM, et al. Synthesis, Characterization, Antibacterial, Antifungal and Anticorrosion Activities of 1,2,4-Triazolo[1,5-a]quinazolinone. Molecules. 2023;28(14):1-22.

Kadela-Tomanek M, Jastrzębska M, Chrobak E, Bębenek E. Lipophilicity and ADMET Analysis of Quinoline-1,4-quinone Hybrids. Pharmaceutics. 2023; 15(1):1-16.

Gattu R, Ramesh SS, Nadigar S, D CG, Ramesh S. Conjugation as a Tool in Therapeutics: Role of Amino Acids/Peptides-Bioactive (Including Hetero-cycles) Hybrid Molecules in Treating Infectious Diseases. Antibiotics. 2023;12(3):1-88.

Starosotnikov AM, Bastrakov MA. Recent Developments in the Synthesis of HIV-1 Integrase Strand Transfer Inhibitors Incorporating Pyridine Moiety. Int J Mol Sci. 2023;24(11):1-36.

Veisi H, Pirhayati M, Mohammadi P, et al, Recent advances in the application of magnetic nanocatalysts in multi-com-ponent reactions. RSC Adv. 2023;13(30):278–352.

Ruiz-Alcaraz AJ, Núñez- MÁ, Asensio MA, et al. Optimizing the Preparation of Silk Fibroin Nanoparticles and Their Loading with Polyphenols: Towards a More Efficient Anti-Inflammatory Effect on Macrophages. Pharma-ceutics. 2023;15(1):1-18.

Kamoon RA, Jawad Al-Mudhafar MM, Omar TNA. Synthesis, characterization & antimicrobial evaluation of new Azo compounds derived from sulfonamides and Isatin Schiff base. Int J Drug Deliv Technol. 2020;10(1) :150–155.

Priya M, Venkatesan R, Deepa S, Sana SS, et al. Green synthesis, characteriza-tion, antibacterial, and antifungal activity of copper oxide nanoparticles derived from Morinda citrifolia leaf extract. Sci Rep. 2023;13(1):1–13.

Kanaan SK, Omar TNA. Synthesis and Preliminary Anti-Inflammatory and Anti-Microbial Evaluation of New 4,5-Dihydro-1H-Pyrazole Derivatives. Iraqi J Pharm Sci. 2023;32(2):262–270.

K MM, Omar TN. Evaluation of New 2-Pyrazolines Derivatives Derived. Iraqi J Pharm Sci. 2023;32(2):254–261.

Abbas SS, Kubba AMA. Synthesis, characterization and preliminary antimicrobial evaluation with DFT Study of new thiazole derivatives. Iraqi J Pharm Sci. 2018;27(1):69–78.

Najmuldeen ZD, Omar TNA. Synthesis and Evaluation of New Pyrazoline derivatives containing Sulfonamide Moiety as Anti-microbial and Anti-inflammatory Agents. J Res Med Dent Sci. 2023;11(01):1–10.

Hobbi P, Okoro OV, Hajiabbas M, et al. Chemical Composition, Antioxidant Activity and Cytocompatibility of Polyphenolic Compounds Extracted from Food Industry Apple Waste: Potential in Biomedical Application. Molecules. 2023;28(2):1-21.

Downloads

Published

2025-12-20

Issue

Section

Article