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Tan YM, Zhang J, Wei YJ, Hu YG, Li SR, Zhang SL, Zhou CH. Cyanomethylquinolones as a New Class of Potential Multitargeting Broad-Spectrum Antibacterial Agents. J Med Chem 2024; 67:9028-9053. [PMID: 38787534 DOI: 10.1021/acs.jmedchem.4c00238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
This work identified a class of cyanomethylquinolones (CQs) and their carboxyl analogues as potential multitargeting antibacterial candidates. Most of the prepared compounds showed high antibacterial activities against most of the tested bacteria, exhibiting lower MIC values (0.125-2 μg/mL) than those of clinical norfloxacin, ciprofloxacin, and clinafloxacin. The low hemolysis, drug resistance, and cytotoxicity, as well as good predictive pharmacokinetics of active CQs and carboxyl analogues revealed their development potential. Furthermore, they could eradicate the established biofilm, facilitating bacterial exposure to these antibacterial candidates. These active compounds could induce bacterial death through multitargeting effects, including intercalating into DNA, up-regulating reactive oxygen species, damaging membranes directly, and impeding metabolism. Moreover, the highly active cyclopropyl CQ 15 exhibited more effective in vivo anti-MRSA potency than ciprofloxacin. These findings highlight the potential of CQs and their carboxyl analogues as multitargeting broad-spectrum antibacterial candidates for treating intractable bacterial infections.
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Affiliation(s)
- Yi-Min Tan
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Jing Zhang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yu-Jia Wei
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yue-Gao Hu
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Shu-Rui Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Shao-Lin Zhang
- School of Pharmaceutical Sciences, Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chongqing University, Chongqing 401331, PR China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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2
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Schmitt HL, Martymianov D, Green O, Delcaillau T, Park Kim YS, Morandi B. Regiodivergent Ring-Expansion of Oxindoles to Quinolinones. J Am Chem Soc 2024; 146:4301-4308. [PMID: 38335924 PMCID: PMC10885155 DOI: 10.1021/jacs.3c12119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
The development of divergent methods to expedite structure-activity relationship studies is crucial to streamline discovery processes. We developed a rare example of regiodivergent ring expansion to access two regioisomers from a common starting material. To enable this regiodivergence, we identified two distinct reaction conditions for transforming oxindoles into quinolinone isomers. The presented methods proved to be compatible with a variety of functional groups, which enabled the late-stage diversification of bioactive oxindoles as well as facilitated the synthesis of quinolinone drugs and their derivatives.
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Affiliation(s)
- Hendrik L Schmitt
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Den Martymianov
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Ori Green
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Tristan Delcaillau
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Young Seo Park Kim
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
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3
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Pakeeraiah K, Mal S, Mahapatra M, Mekap SK, Sahu PK, Paidesetty SK. Schematic-portfolio of potent anti-microbial scaffolds targeting DNA gyrase: Unlocking ways to overcome resistance. Int J Biol Macromol 2024; 256:128402. [PMID: 38035955 DOI: 10.1016/j.ijbiomac.2023.128402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/02/2023]
Abstract
Drug development process demands validation of specific drug target impeding the Multi Drug Resistance (MDR). DNA gyrase, as a bacterial target has been in trend for developing newer antibacterial candidates due to its absence in higher eukaryotes. The fluoroquinolones are the leading molecules in the drug discovery pipeline for gyrase inhibition due to its diversity. The fluoroquinolones like levofloxacin and moxifloxacin have been listed in class A drugs for treating MDR. Gatifloxacin and ciprofloxacin also proved its efficacy against MDR TB and MDR enteric fever in adults, whereas nemonoxacin can induce anti-MDR activity of other antibiotics already suggested by studies. Though fluoroquinolones already proved its effectiveness against gyrase, other molecules viz., benzothiazinone, phenyl pyrrolamide, substituted oxadiazoles, triazolopyrimidine, arylbenzothiazole, coumarinyl amino alcohols and ciprofloxacin uracil, can inhibit the target more precisely. The structure-activity-relationships of the different scaffolds along with their synthetic strategies have been deciphered in the current review. Also, the naturally occurring compounds along with their extraction procedure have also been highlighted as potent DNA gyrase inhibitors. In addition to fluoroquinolone, the natural compounds novobiocin and simocyclinone could also inhibit the gyrase, impressively which has been designed with the gyrase structure for better understanding. Herein, ongoing clinical development of some novel drugs possessing triazaacenaphthylenes, spiropyrimidinetriones, and oxazolidinone-quinolone hybrids have been highlighted which could further assist the future generation antibiotic development corroborating gyrase as a potential target against MDR pathogens.
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Affiliation(s)
- Kakarla Pakeeraiah
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India
| | - Suvadeep Mal
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India
| | - Monalisa Mahapatra
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India
| | - Suman Kumar Mekap
- School of Pharmacy and Life Sciences, Centurion University of technology and management, Bhubaneswar 752050, Odisha, India
| | - Pratap Kumar Sahu
- Department of Pharmacology, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India
| | - Sudhir Kumar Paidesetty
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India.
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4
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Li SR, Zeng CM, Peng XM, Chen JP, Li S, Zhou CH. Benzopyrone-mediated quinolones as potential multitargeting antibacterial agents. Eur J Med Chem 2023; 262:115878. [PMID: 37866337 DOI: 10.1016/j.ejmech.2023.115878] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
A new type of benzopyrone-mediated quinolones (BMQs) was rationally designed and efficiently synthesized as novel potential antibacterial molecules to overcome the global increasingly serious drug resistance. Some synthesized BMQs effectively suppressed the growth of the tested strains, outperforming clinical drugs. Notably, ethylidene-derived BMQ 17a exhibited superior antibacterial potential with low MICs of 0.5-2 μg/mL to clinical drugs norfloxacin, it not only displayed rapid bactericidal performance and inhibited bacterial biofilm formation, but also showed low toxicity toward human red blood cells and normal MDA-kb2 cells. Mechanistic investigation demonstrated that BMQ 17a could effectually induce bacterial metabolic disorders and promote the enhancement of reactive oxygen species to disrupt the bacterial antioxidant defense system. It was found that the active molecule BMQ 17a could not only form supramolecular complex with lactate dehydrogenase, which disturbed the biological functions, but also effectively embed into calf thymus DNA, thus affecting the normal function of DNA and achieving cell death. This work would provide an insight into developing new molecules to reduce drug resistance and expand antibacterial spectrum.
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Affiliation(s)
- Shu-Rui Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Chun-Mei Zeng
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Xin-Mei Peng
- School of Chemistry and Chemical Engineering, Qiannan Normal University for Nationalities, Duyun, 558000, China.
| | - Jin-Ping Chen
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Shuo Li
- School of Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
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Al-Taweel S, Al-Saraireh Y, Al-Trawneh S, Alshahateet S, Al- Tarawneh R, Ayed N, Alkhojah M, AL-Khaboori W, Zereini W, Al-Qaralleh O. Synthesis and biological evaluation of ciprofloxacin - 1,2,3-triazole hybrids as antitumor, antibacterial, and antioxidant agents. Heliyon 2023; 9:e22592. [PMID: 38125538 PMCID: PMC10731006 DOI: 10.1016/j.heliyon.2023.e22592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023] Open
Abstract
Six novel ciprofloxacin-1,2,3-triazole hybrids (6a-f) were synthesized via click reaction, by reacting of methyl 1-cyclopropyl-6-fluoro-4-oxo-7-(4-(3-oxobutanoyl)piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylate (5) with various aryl azides (9a-f). The new compounds were characterized using High-Resolution Mass Spectrometry (HRMS), 1H NMR, 13C NMR, and elemental analysis. Compounds (6a-f) screened for their in vitro anticancer activity against three cell lines, namely, non-small cell lung cancer (A549), glioblastoma (U-87 MG), and breast cancer (MCF7). Hybrids 6a and 6b exhibited remarkable anti-proliferative activity against all three cell-lines. IC50 values of 6b for all cancer cell lines were significantly lower comparing to the standard reference compound IC50. The IC50 of 6b for the normal cell (HDF) line was significantly higher than the reported for cisplatin [IC50 = 170.7 ± 8.1 μM/ml (HDF), (p ≤ 0.001)], indicating less toxicity towards normal cells and thereby has a better therapeutic index, with a selectivity index of 142.3 for U87 cell line. Compounds 6e, 6d, and 6f displayed significant cytotoxic activity against only U-87 and MCF-7 cancer cell lines, compared to normal cells (HDF). Compound 6f [IC50 = 7.9 ± 2.3 μM/ml (U-87) and 10.6 ± 3 μM/ml (MCF-7)] was more potent than cisplatin [IC50 = 28.3 ± 5.3 μM/ml (U-87) and 26.9 ± 4.7 μM/ml (MCF-7)] in displaying anti-proliferative effect against U-87 and MCF-7 cells, with less cytotoxic to normal cells [IC50 = 141.7 ± 4.1] than cisplatin [IC50 = 40.9 ± 5.4]. Moreover, they were tested for their antioxidant activity in DPPH and ABTS assays and antibacterial activity.
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Affiliation(s)
- Samir Al-Taweel
- Department of Chemistry, Faculty of Science, Mutah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Yousef Al-Saraireh
- Department of Pharmacology, Faculty of Medicine, Mut'ah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Salah Al-Trawneh
- Department of Chemistry, Faculty of Science, Mutah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Solhe Alshahateet
- Department of Chemistry, Faculty of Science, Mutah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Rakan Al- Tarawneh
- Department of Chemistry, Faculty of Science, Mutah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Nadaa Ayed
- Department of Chemistry, Faculty of Science, Mutah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Mohammad Alkhojah
- Al-Karak Governmental Hospital, Ministry of Health, Al-Karak, 11118, Jordan
| | - Wisam AL-Khaboori
- Department of Pharmacology, Faculty of Medicine, Mut'ah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Wael Zereini
- Department of Biology, Faculty of Science, Mutah University, P.O. Box 7, Al-Karak, 61710, Jordan
| | - Omar Al-Qaralleh
- Department of Biology, Faculty of Science, Mutah University, P.O. Box 7, Al-Karak, 61710, Jordan
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Abd El-Lateef HM, Elmaaty AA, Abdel Ghany LMA, Abdel-Aziz MS, Zaki I, Ryad N. Design and Synthesis of 2-(4-Bromophenyl)Quinoline-4-Carbohydrazide Derivatives via Molecular Hybridization as Novel Microbial DNA-Gyrase Inhibitors. ACS OMEGA 2023; 8:17948-17965. [PMID: 37251193 PMCID: PMC10210181 DOI: 10.1021/acsomega.3c01156] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 04/25/2023] [Indexed: 05/31/2023]
Abstract
Microbial DNA gyrase is regarded as an outstanding microbial target. Hence, 15 new quinoline derivatives (5-14) were designed and synthesized. The antimicrobial activity of the afforded compounds was pursued via in vitro approaches. The investigated compounds displayed eligible MIC values, particularly against G-positive Staphylococcus aureus species. Consequently, an S. aureus DNA gyrase supercoiling assay was performed, using ciprofloxacin as a reference control. Obviously, compounds 6b and 10 unveiled IC50 values of 33.64 and 8.45 μM, respectively. Alongside, ciprofloxacin exhibited an IC50 value of 3.80 μM. Furthermore, a significant docking binding score was encountered by compound 6b (-7.73 kcal/mol), surpassing ciprofloxacin (-7.29 kcal/mol). Additionally, both compounds 6b and 10 revealed high GIT absorption without passing the blood brain barrier. Finally, the conducted structure-activity relationship study assured the usefulness of the hydrazine moiety as a molecular hybrid for activity either in cyclic or opened form.
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Affiliation(s)
- Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Ayman Abo Elmaaty
- Medicinal
Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said 42526, Egypt
| | - Lina M. A. Abdel Ghany
- Pharmaceutical
Chemistry Department, College of Pharmaceutical Sciences and Drug
Manufacturing, Misr University for Science
and Technology, 6th of
October City 3236101, Egypt
| | - Mohamed S. Abdel-Aziz
- Microbial
Chemistry Department, Biotechnology Research Institute, National Research Centre, Cairo 12622, Egypt
| | - Islam Zaki
- Pharmaceutical
Organic Chemistry Department, Faculty of pharmacy, Port Said University, Port Said 42526, Egypt
| | - Noha Ryad
- Pharmaceutical
Organic Chemistry Department, College of Pharmaceutical Sciences and
Drug Manufacturing, Misr University for
Science and Technology, 6th of October
City, P.O. Box 77, Giza 3236101, Egypt
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Gao J, Hou H, Gao F. Current scenario of quinolone hybrids with potential antibacterial activity against ESKAPE pathogens. Eur J Med Chem 2023; 247:115026. [PMID: 36577217 DOI: 10.1016/j.ejmech.2022.115026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/04/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
The ESKAPE (Escherichia coli/E. coli, Staphylococcus aureus/S. aureus, Klebsiella pneumonia/K. pneumoniae, Acinetobacter Baumannii/A. baumannii, Pseudomonas aeroginosa/P. aeroginosa and Enterobacter spp.) pathogens, which could escape or evade common therapies through diverse antimicrobial resistance mechanisms and biofilm formation, are deemed as highly virulent bacteria responsible for life-threatening diseases, calling for novel chemotherapeutics. Quinolones including 2-quinolones and 4-quinolones have occupied a propitious place in drug design and development due to their excellent pharmacological profiles. Quinolones especially fluoroquinolones could inhibit the synthesis of nucleic acid of ESKAPE pathogens, leading to the rupture of bacterial chromosome. However, the resistance of ESKAPE pathogens to quinolones develops rapidly and spreads widely. Accordingly, it has become increasingly urgent to enhance the potency of quinolones against both drug-susceptible and drug-resistant ESKAPE pathogens. Quinolone hybrids can bind with different drug targets simultaneously and have been considered as useful prototypes to circumvent drug resistance. The purpose of this review is to summarize the current scenario (2018-present) of quinolone hybrids with potential antibacterial activity against ESKAPE pathogens, together with the structure-activity relationships and mechanisms of action to facilitate further rational design of more effective candidates.
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Affiliation(s)
- Jingyue Gao
- Key Laboratory for Experimental Teratology of the Ministry of Education and Center for Experimental Nuclear Medicine, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Haodong Hou
- Key Laboratory for Experimental Teratology of the Ministry of Education and Center for Experimental Nuclear Medicine, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Feng Gao
- Key Laboratory for Experimental Teratology of the Ministry of Education and Center for Experimental Nuclear Medicine, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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Osman EO, Attia H, Samir R, Mahmoud Z. Design, Synthesis, and Antibacterial Activity of a New Series of Ciprofloxacin-Thiadiazole Hybrid. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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9
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Fluoroquinolones Hybrid Molecules as Promising Antibacterial Agents in the Fight against Antibacterial Resistance. Pharmaceutics 2022; 14:pharmaceutics14081749. [PMID: 36015376 PMCID: PMC9414178 DOI: 10.3390/pharmaceutics14081749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/12/2022] [Accepted: 08/14/2022] [Indexed: 11/17/2022] Open
Abstract
The emergence of bacterial resistance has motivated researchers to discover new antibacterial agents. Nowadays, fluoroquinolones keep their status as one of the essential classes of antibacterial agents. The new generations of fluoroquinolones are valuable therapeutic tools with a spectrum of activity, including Gram-positive, Gram-negative, and atypical bacteria. This review article surveys the design of fluoroquinolone hybrids with other antibacterial agents or active compounds and underlines the new hybrids' antibacterial properties. Antibiotic fluoroquinolone hybrids have several advantages over combined antibiotic therapy. Thus, some challenges related to joining two different molecules are under study. Structurally, the obtained hybrids may contain a cleavable or non-cleavable linker, an essential element for their pharmacokinetic properties and mechanism of action. The design of hybrids seems to provide promising antibacterial agents helpful in the fight against more virulent and resistant strains. These hybrid structures have proven superior antibacterial activity and less susceptibility to bacterial resistance than the component molecules. In addition, fluoroquinolone hybrids have demonstrated other biological effects such as anti-HIV, antifungal, antiplasmodic/antimalarial, and antitumor activity. Many fluoroquinolone hybrids are in various phases of clinical trials, raising hopes that new antibacterial agents will be approved shortly.
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Design and synthesis of new N-thioacylated ciprofloxacin derivatives as urease inhibitors with potential antibacterial activity. Sci Rep 2022; 12:13827. [PMID: 35970866 PMCID: PMC9378659 DOI: 10.1038/s41598-022-17993-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 08/03/2022] [Indexed: 01/06/2023] Open
Abstract
A new series of N-thioacylated ciprofloxacin 3a-n were designed and synthesized based on Willgerodt-Kindler reaction. The results of in vitro urease inhibitory assay indicated that almost all the synthesized compounds 3a-n (IC50 = 2.05 ± 0.03-32.49 ± 0.32 μM) were more potent than standard inhibitors, hydroxyurea (IC50 = 100 ± 2.5 μM) and thiourea (IC50 = 23 ± 0.84 μM). The study of antibacterial activity against Gram-positive species (S. aureus and S. epidermidis) revealed that the majority of compounds were more active than ciprofloxacin as the standard drug, and 3h derivative bearing 3-fluoro group had the same effect as ciprofloxacin against Gram-negative bacteria (P. aeruginosa and E. coli). Based on molecular dynamic simulations, compound 3n exhibited pronounced interactions with the critical residues of the urease active site and mobile flap pocket so that the quinolone ring coordinated toward the metal bi-nickel center and the essential residues at the flap site like His593, His594, and Arg609. These interactions caused blocking the active site and stabilized the movement of the mobile flap at the entrance of the active site channel, which significantly reduced the catalytic activity of urease. Noteworthy, 3n also exhibited IC50 values of 5.59 ± 2.38 and 5.72 ± 1.312 µg/ml to inhibit urease enzyme against C. neoformans and P. vulgaris in the ureolytic assay.
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Nwabuife JC, Omolo CA, Govender T. Nano delivery systems to the rescue of ciprofloxacin against resistant bacteria "E. coli; P. aeruginosa; Saureus; and MRSA" and their infections. J Control Release 2022; 349:338-353. [PMID: 35820538 DOI: 10.1016/j.jconrel.2022.07.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/29/2022] [Accepted: 07/03/2022] [Indexed: 10/17/2022]
Abstract
Ciprofloxacin (CIP) a broad-spectrum antibiotic, is used extensively for the treatment of diverse infections and diseases of bacteria origin, and this includes infections caused by E. coli; P. aeruginosa; S. aureus; and MRSA. This extensive use of CIP has therefore led to an increase in resistance by these infection causing organisms. Nano delivery systems has recently proven to be a possible solution to resistance to these organisms. They have been applied as a strategy to improve the target specificity of CIP against infections and diseases caused by these organisms, thereby maximising the efficacy of CIP to overcome the resistance. Herein, we proffer a brief overview of the mechanisms of resistance; the causes of resistance; and the various approaches employed to overcome this resistance. The review then proceeds to critically evaluate various nano delivery systems including inorganic based nanoparticles; lipid-based nanoparticles; capsules, dendrimers, hydrogels, micelles, and polymeric nanoparticles; and others; that have been applied for the delivery of CIP against E. coli; P. aeruginosa; S. aureus; and MRSA infections. Finally, the review highlights future areas of research, for the optimisation of various nano delivery systems, to maximise the therapeutic efficacy of CIP against these organisms. This review confirms the potential of nano delivery systems, for addressing the challenges of resistance to caused by E. coli; P. aeruginosa; S. aureus; and MRSA to CIP.
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Affiliation(s)
- Joshua C Nwabuife
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa.; Department of Pharmaceutics, School of Pharmacy and Health Sciences, United States International University-Africa, P. O. Box 14634-00800, Nairobi, Kenya
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa..
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12
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Tan YM, Li D, Li FF, Fawad Ansari M, Fang B, Zhou CH. Pyrimidine-conjugated fluoroquinolones as new potential broad-spectrum antibacterial agents. Bioorg Med Chem Lett 2022; 73:128885. [PMID: 35835379 DOI: 10.1016/j.bmcl.2022.128885] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/26/2022] [Accepted: 07/07/2022] [Indexed: 12/24/2022]
Abstract
Pyrimidine-conjugated fluoroquinolones were constructed to cope with the dreadful resistance. Most of the target pyrimidine derivatives effectively suppressed the growth of the tested strains, especially, 4-aminopyrimidinyl compound 1c showed a broad antibacterial spectrum and low cytotoxicity and exhibited superior antibacterial potency against Enterococcus faecalis with a low MIC of 0.25 μg/mL to norfloxacin and ciprofloxacin. The active compound 1c with fast bactericidal potency could inhibit the formation of biofilms and showed much lower trend for the development of drug-resistance than norfloxacin and ciprofloxacin. Further exploration revealed that compound 1c could prompt ROS accumulations in bacterial cells and interact with DNA to form a DNA-1c complex, thus facilitating bacterial death. ADME analysis indicated that compound 1c possessed favorable drug-likeness and promising pharmacokinetic properties. These results demonstrated that pyrimidine-conjugated fluoroquinolones held hope as potential antibacterial candidates and deserve further study.
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Affiliation(s)
- Yi-Min Tan
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Di Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Fen-Fen Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, PR China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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13
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Liu Y, Deng Y, Li S, Wang-Ngai Chow F, Liu M, He N. Monitoring and detection of antibiotic residues in animal derived foods: Solutions using aptamers. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Kaddah MM, Fahmi AA, Kamel MM, Rizk SA, Ramadan SK. Rodenticidal Activity of Some Quinoline-Based Heterocycles Derived from Hydrazide–Hydrazone Derivative. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2088576] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mohamed M. Kaddah
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | | | - Mustafa M. Kamel
- Industrial Area, El-Nasr Company for Intermediate Chemicals, Giza, Egypt
| | - Sameh A. Rizk
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Sayed K. Ramadan
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
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15
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Ramadan SK, Abdel Haleem DR, Abd-Rabboh HSM, Gad NM, Abou-Elmagd WSI, Haneen DSA. Synthesis, SAR studies, and insecticidal activities of certain N-heterocycles derived from 3-((2-chloroquinolin-3-yl)methylene)-5-phenylfuran-2(3 H)-one against Culex pipiens L. larvae. RSC Adv 2022; 12:13628-13638. [PMID: 35530392 PMCID: PMC9069532 DOI: 10.1039/d2ra02388a] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 04/20/2022] [Indexed: 02/05/2023] Open
Abstract
An acid hydrazide derivative was synthesized and transformed into a variety of valuable N-heterocycles such as pyridazinone, oxadiazole, triazolopyridazinone, and triazole derivatives via reactions with certain carbon electrophiles such as 4-methoxybenzaldehyde, indole-3-carbaldehyde, pentan-2,4-dione, and carbon disulfide. The chemical structures of all prepared compounds were verified via their analytical and spectroscopic data. The insecticidal activity of the N-heterocycles was evaluated against field and lab strains of the third larval instar of Culex pipiens. All tested compounds exhibited higher larvicidal activity against the lab strains compared to the field strains, with dissimilar ratios. The obtained results demonstrate that the high toxicity achieved by oxadiazole followed the order of furanone, pyridazinone and hydrazide, with lower LC50 values of the hydrazone and N-acetylpyridazinone derivatives compared to that of imidacloprid. Interestingly, these compounds are promising agents for insect pest control, especially since they are insoluble in water and can overcome the disadvantages of neonicotinoid applications in pest management programs. A new series of N-heterocycles including pyridazinone, oxadiazole, triazolopyridazinone, and triazole derivatives were synthesized from the acid hydrazide via its reaction with certain carbon electrophiles.![]()
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Affiliation(s)
- Sayed K Ramadan
- Chemistry Department, Faculty of Science, Ain Shams University Cairo 11566 Egypt
| | - Doaa R Abdel Haleem
- Entomology Department, Faculty of Science, Ain Shams University 11566 Cairo Egypt
| | - Hisham S M Abd-Rabboh
- Chemistry Department, Faculty of Science, King Khalid University 9004 Abha 61413 Saudi Arabia
| | - Nourhan M Gad
- Chemistry Department, Faculty of Science, Ain Shams University Cairo 11566 Egypt
| | - Wael S I Abou-Elmagd
- Chemistry Department, Faculty of Science, Ain Shams University Cairo 11566 Egypt
| | - David S A Haneen
- Chemistry Department, Faculty of Science, Ain Shams University Cairo 11566 Egypt
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16
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Zang W, Li D, Gao L, Gao S, Hao P, Bian H. The antibacterial potential of ciprofloxacin hybrids against Staphylococcus aureus. Curr Top Med Chem 2022; 22:1020-1034. [PMID: 35301951 DOI: 10.2174/1568026622666220317162132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 02/01/2022] [Accepted: 02/13/2022] [Indexed: 11/22/2022]
Abstract
Staphylococcus aureus (S. aureus), an important pathogen of both humans and animals, is able to cause a variety of infections at any site of the body. The evolution of S. aureus resistance is notorious, and the widespread of drug-resistant S. aureus, especially methicillin-resistant S. aureus (MRSA), has made the treatment difficult in recent decades. Nowadays, S. aureus is among the leading causes of bacterial infections, creating an urgent need for the development of novel antibacterial agents. Ciprofloxacin, characterized by high clinical efficacy, is a broad-spectrum antibacterial agent with frequency of prescription for various Gram-positive and Gram-negative pathogens, many of which are resistant to a wide range of antibiotics. However, the long-term and widespread use of this antibiotic has led to the emergence of ciprofloxacin-resistant pathogens, and ciprofloxacin-resistant S. aureus has been noted in clinical practice. Ciprofloxacin hybrids have been recognized as advanced chemical entities to simultaneously modulate multiple drug targets in bacteria, so ciprofloxacin hybrids have the potential to overcome drug resistance. The present review provides an overview of ciprofloxacin hybrids with anti-S. aureus potential that have been reported in the last decade with emphasis on their structure-activity relationships and mechanisms of action.
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Affiliation(s)
- Wenhua Zang
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Danxia Li
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Li Gao
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Shuang Gao
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Pengfei Hao
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Hua Bian
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
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17
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Peng J, He YY, Zhang ZY, Chen XZ, Jiang YL, Guo H, Yuan JP, Wang JH. Removal of levofloxacin by an oleaginous microalgae Chromochloris zofingiensis in the heterotrophic mode of cultivation: Removal performance and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:128036. [PMID: 34986572 DOI: 10.1016/j.jhazmat.2021.128036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Microalgae-based technology is an environmental-friendly and cost-effective method for treating antibiotics-contaminated wastewater. This work investigated the removal of levofloxacin (LEV) by an oleaginous microalgae Chromochloris zofingiensis under photoautotrophic and heterotrophic conditions. The results showed that the significantly higher biomass production, accumulation of extracellular polymeric substance and LEV removal efficiency were achieved in heterotrophic C. zofingiensis compared with the photoautotrophic ones. The removal efficiencies under the heterotrophic condition were 97%, 88% and 76% at 1, 10, and 100 mg/L LEV, respectively. HPLC-MS/MS and RNA-Seq analyses suggested that LEV could be bioaccumulated and biodegraded by heterotrophic C. zofingiensis through the reactions of defluorination, hydroxylation, demethylation, ring cleavage, oxidation, dehydrogenation, denitrification, and decarboxylation. The chemical composition of the algal biomass obtained after LEV treatment indicated the potential of this alga for removing LEV from wastewaters and simultaneously producing biodiesel, astaxanthin, and other products. Collectively, this research shows that the heterotrophic C. zofingiensis can be identified as a promising candidate for removing LEV in wastewater remediation.
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Affiliation(s)
- Juan Peng
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China
| | - Yong-Yi He
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China; Guangdong Institute for Cereal Science Research, Guangzhou 510050, China
| | - Zhi-Yu Zhang
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China
| | - Xiao-Zhi Chen
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China
| | - Yun-Lin Jiang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Han Guo
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China
| | - Jian-Ping Yuan
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China.
| | - Jiang-Hai Wang
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China.
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18
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Guo Q, Zhang RF, Hua XW, Li QL, Du XM, Ru J, Ma CL. Syntheses, structures, in vitro cytostatic activity and antifungal activity evaluation of four diorganotin( iv) complexes based on norfloxacin and levofloxacin. NEW J CHEM 2022. [DOI: 10.1039/d1nj05742a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four organotin(iv) complexes have been designed and synthesized from the reactions of R2SnO (R = Me, Ph) with the corresponding ligands norfloxacin and levofloxacin. And the cytostatic and antifungal activity test have been done.
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Affiliation(s)
- Qiang Guo
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Ru-Fen Zhang
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Xue-Wen Hua
- College of Agronomy, Liaocheng University, 252000, Liaocheng, Shandong, China
| | - Qian-Li Li
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Xiu-Mei Du
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Jing Ru
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Chun-Lin Ma
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
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19
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Sun H, Huang SY, Jeyakkumar P, Cai GX, Fang B, Zhou CH. Natural Berberine-derived Azolyl Ethanols as New Structural Antibacterial Agents against Drug-Resistant Escherichia coli. J Med Chem 2021; 65:436-459. [PMID: 34964345 DOI: 10.1021/acs.jmedchem.1c01592] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Natural berberine-derived azolyl ethanols as new structural antibacterial agents were designed and synthesized for fighting with dreadful bacterial resistance. Partial target molecules exhibited potent activity against the tested strains, particularly, nitroimidazole derivative 4d and benzothiazole-2-thoil compound 18b, with low cytotoxicity both exerted strong antibacterial activities against multidrug-resistant Escherichia coli at low concentrations as 0.007 and 0.006 mM, respectively. Meanwhile, the active compounds 4d and 18b possessed the ability to rapidly kill bacteria and observably eradicate the E. coli biofilm by reducing exopolysaccharide content to prevent bacterial adhesion, which was conducive to alleviating the development of E. coli resistance. Preliminary mechanistic explorations suggested that the excellent antibacterial potential of molecules 4d and 18b might be attributed to their ability to disintegrate membrane, accelerate ROS accumulation, reduce bacterial metabolism, and intercalate into DNA groove. These results provided powerful information for the further exploitation of natural berberine derivatives against bacterial pathogens.
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Affiliation(s)
- Hang Sun
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shi-Yu Huang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ponmani Jeyakkumar
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Gui-Xin Cai
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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20
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Elshaier YAMM, Aly AA, El-Aziz MA, Fathy HM, Brown AB, Ramadan M. A review on the synthesis of heteroannulated quinolones and their biological activities. Mol Divers 2021; 26:2341-2370. [PMID: 34698911 DOI: 10.1007/s11030-021-10332-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 09/30/2021] [Indexed: 10/20/2022]
Abstract
The quinoline scaffold has become an important construction motif for the development of new drugs. The quinolones and their heteroannulated derivatives have high importance due to their diverse spectrum of biological activities as antifungal, anti-inflammatory, anti-diabetes, anti-Alzheimer's disease, antioxidant and diuretic activities. This review summarizes the various new, efficient and convenient synthetic approaches to synthesize diverse quinolone-based scaffolds and their biological activities. We also dealt with the important mechanism, the route and type of reactions of the obtained products. The biological activities of some heteroannulated quinolones were also discussed.
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Affiliation(s)
- Yaseen A M M Elshaier
- Organic & Medicinal Chemistry Department, Faculty of Pharmacy, University of Sadat City, Menoufia, 32958, Egypt
| | - Ashraf A Aly
- Chemistry Department, Faculty of Science, Minia University, El-Minia, 61519, Egypt.
| | - Mohamed Abd El-Aziz
- Medicinal Chemistry Department, Faculty of Pharmacy, Minia University, El-Minia, 61519, Egypt
| | - Hazem M Fathy
- Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, 71524, Egypt
| | - Alan B Brown
- Chemistry Department, Florida Institute of Technology, Melbourne, FL, 32901, USA
| | - Mohamed Ramadan
- Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, 71524, Egypt
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21
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Kaddah MM, Morsy ARI, Fahmi AA, Kamel MM, Elsafty MM, Rizk SA, Ramadan SK. Synthesis and biological activity on IBD virus of diverse heterocyclic systems derived from 2-cyano- N'-((2-oxo-1,2-dihydroquinolin-3-yl)methylene)acetohydrazide. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1970776] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mohamed M. Kaddah
- Faculty of Science, Department of Chemistry, Ain Shams University, Cairo, Egypt
| | - Alaa R. I. Morsy
- Central Laboratory for Evaluation of Veterinary Biologics (CLEVB), Agricultural Research Center, Cairo, Egypt
| | | | | | - Mounir M. Elsafty
- Central Laboratory for Evaluation of Veterinary Biologics (CLEVB), Agricultural Research Center, Cairo, Egypt
| | - Sameh A. Rizk
- Faculty of Science, Department of Chemistry, Ain Shams University, Cairo, Egypt
| | - Sayed K. Ramadan
- Faculty of Science, Department of Chemistry, Ain Shams University, Cairo, Egypt
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22
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Jia Y, Zhao L. The antibacterial activity of fluoroquinolone derivatives: An update (2018-2021). Eur J Med Chem 2021; 224:113741. [PMID: 34365130 DOI: 10.1016/j.ejmech.2021.113741] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/02/2021] [Indexed: 12/20/2022]
Abstract
Bacterial infection is amongst the most common diseases in community and hospital settings. Fluoroquinolones, exerting the antibacterial activity through binding to type II bacterial topoisomerase enzymes, DNA gyrase and topoisomerase IV, are mainstays of chemotherapy. At present, fluoroquinolones are the most valuable antibacterial agents used popularly. However, the emergence of more virulent and resistant pathogens by the development of either mutated DNA-binding proteins or efflux pump mechanism for fluoroquinolones results in an urgent demand to develop new fluoroquinolones to withstand the drug resistance and to obtain a broader spectrum of activity. This review aims to outline the recent advances of fluoroquinolone derivatives with antibacterial potential and to summarize the structure-activity relationship (SAR) so as to provide an insight for rational design of more active candidates, covering articles published between January 2018 and June 2021.
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Affiliation(s)
- Yanshu Jia
- Faculty of Science and Technology, Quest International University Perak, Ipoh, 30250, Perak, Malaysia
| | - Liyan Zhao
- Department of Paediatrics, Zhuji Affiliated Hospital of Shaoxing University, Shaoxing, China.
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23
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Ghorbani SS, Montazeri N, Zeydi MM, Ghane M. Synthesis of Novel Tris-1,2,4-triazole Derivatives and Their Antibacterial Activity. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021040151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Han Z, Sun T, Xu Z, Fan L, Yun H, Ge X, Liu X, Liu Y, Ning B. Detection of 4 quinolone antibiotics by chemiluminescence based on a novel Nor-Biotin bifunctional ligand and SA-ALP technology. Biosci Biotechnol Biochem 2021; 85:1720-1728. [PMID: 33960377 DOI: 10.1093/bbb/zbab081] [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: 02/03/2021] [Accepted: 04/22/2021] [Indexed: 11/13/2022]
Abstract
A simple and effective direct competitive chemiluminescence immunoassay for the detection of 4 kinds of quinolone antibiotics in milk was established using Nor-Biotin (biotin-modified norfloxacin [NOR]) bifunctional ligand and alkaline phosphatase-conjugated streptavidin signal amplification technology. The polyclonal antibody was obtained after the immunization of New Zealand White rabbits using norfloxacin-derived antigen. "Click chemistry" was used for the rapid and facile synthesis of the Nor-Biotin bifunctional ligand. After the optimization of the incubation time and reaction buffer, the direct competitive chemiluminescence assay method was developed and used for sensitive detection of 4 kinds of quinolone drugs (NOR, pefloxacin, ciprofloxacin, and danofloxacin). The IC50 of the 4 kinds of quinolone drugs ranged from 7.35 to 24.27 ng/mL, and the lowest detection limits ranged from 0.05 to 0.16 ng/mL, which were below their maximum residue levels, approved by the EU for treatment of food-producing animals. To demonstrate the applicability of the assay, artificially contaminated milk samples with the 4 quinolone drugs were analyzed. The mean recovery rates of the drugs ranged from 86.31% to 112.11%.
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Affiliation(s)
- Zhenyu Han
- School of Public Health, Inner Mongolia Medical University, Hohhot, China.,Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Tieqiang Sun
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Zehua Xu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Longxing Fan
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China.,Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
| | - Hanxuan Yun
- School of Public Health, Inner Mongolia Medical University, Hohhot, China.,Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Xuejiao Ge
- School of Public Health, Inner Mongolia Medical University, Hohhot, China.,Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Xiao Liu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Ying Liu
- School of Public Health, Inner Mongolia Medical University, Hohhot, China
| | - Bao'an Ning
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
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25
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Kumbar SS, Shettar A, Joshi SD, Patil SA. Design, synthesis, molecular docking and biological activity studies of novel coumarino-azetidinones. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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26
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New thieno[2,3-b]pyridine-fused [1,2,4]triazolo[4,3-a]pyrimidinone hybrids as potential MRSA and VRE inhibitors. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.04.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Sanad SM, Mekky AE, Said AY, Elneairy MA. New thieno[2,3-b]pyridine-fused [1,2,4]triazolo[4,3-a]pyrimidinone hybrids as potential MRSA and VRE inhibitors. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.05.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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28
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Ghareeb EA, Mahmoud NFH, El-Bordany EA, El-Helw EAE. Synthesis, DFT, and eco-friendly insecticidal activity of some N-heterocycles derived from 4-((2-oxo-1,2-dihydroquinolin-3-yl)methylene)-2-phenyloxazol-5(4H)-one. Bioorg Chem 2021; 112:104945. [PMID: 33964579 DOI: 10.1016/j.bioorg.2021.104945] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 04/17/2021] [Accepted: 04/22/2021] [Indexed: 10/21/2022]
Abstract
A new series of nitrogen heterocycles encompassing a quinoline scaffold such as imidazolone, benzimidazole, triazinone, triazole, and thiazole derivatives was synthesized utilizing the readily obtainable building block synthon, 4-((2-oxo-1,2-dihydroquinolin-3-yl)methylene)-2-phenyloxazol-5(4H)-one (3). It was interesting that the fused heterocycle, pyranoquinoline derivative 15 was successfully synthesized by different routes of reactions. The synthesized compounds were evaluated for their insecticidal activity and compounds 6, 17, and 20 were the most potent against both Mythimna separata and Nilaparvata lugens. The DFT study was performed for the most potent compounds.
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Affiliation(s)
- Eman A Ghareeb
- Chemistry Department, Faculty of Science, Ain Shams University, Abassia, Cairo 11566, Egypt
| | - Naglaa F H Mahmoud
- Chemistry Department, Faculty of Science, Ain Shams University, Abassia, Cairo 11566, Egypt
| | - Eman A El-Bordany
- Chemistry Department, Faculty of Science, Ain Shams University, Abassia, Cairo 11566, Egypt
| | - Eman A E El-Helw
- Chemistry Department, Faculty of Science, Ain Shams University, Abassia, Cairo 11566, Egypt.
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29
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Li HC, Xu QM, Liu LM, Wu LH, Tang ZT, Cui H, Liu YC. A new magnesium(II) complex of marbofloxacin: Crystal structure, antibacterial activity and acute toxicity. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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30
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Sharma V, Das R, Mehta DK, Sharma D, Sahu RK. Exploring quinolone scaffold: Unravelling the chemistry of anticancer drug design. Mini Rev Med Chem 2021; 22:69-88. [PMID: 33438536 DOI: 10.2174/1389557521666210112142136] [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: 01/24/2020] [Revised: 10/24/2020] [Accepted: 11/30/2020] [Indexed: 11/22/2022]
Abstract
Globally, cancer is considered as the major leading cause in decreasing the patient health care system of human beings. The growing threat from drug-resistant cancers makes heterocyclic moieties as an urgent need to develop more successful candidates for anti-cancer therapy. In view of outstanding pharmacological activities Quinolone and its derivatives have attracted more attention towards drug designing and biological evaluation in the search of new drug molecules. The inspired researchers attempted efforts in order to discover quinolone based analogs due to its wide range of biological activities. Due to immense pharmacological importance, distinct synthetic methods have been executed to attain new drug entities from quinolones and all the reported molecules have shown constructive anticancer activity. Some of the synthetic protocol like, one pot synthesis, post-Ugi-transformation, catalysed based synthesis, enzyme-based synthesis and nano-catalyst based synthetic procedures are also discussed as recent advancement in production of quinolone derivatives. In this review, recent synthetic approaches in the medicinal chemistry of quinolones and potent quinolone derivatives on the basis of structural activity relationship are outlined. Moreover, their major methods and modifications are discussed.
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Affiliation(s)
- Vishal Sharma
- MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Hr. India
| | - Rina Das
- MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Hr. India
| | - Dinesh Kumar Mehta
- MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Hr. India
| | - Diksha Sharma
- Faculty of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra-Hr. India
| | - Ram Kumar Sahu
- Dept of Pharmaceutical Science, Assam University (A Central University), Silchar, Assam-788011. India
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Design, synthesis, molecular docking study, and antibacterial evaluation of some new fluoroquinolone analogues bearing a quinazolinone moiety. ACTA ACUST UNITED AC 2020; 28:661-672. [PMID: 33030668 DOI: 10.1007/s40199-020-00373-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/17/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Increasing bacterial resistance to quinolones is concerning. Hence, the development of novel quinolones by chemical modifications to overcome quinolone resistance is an attractive perspective in this context. OBJECTIVE In this study, it is aimed to design and synthesize a novel series of functionalized fluoroquinolones using ciprofloxacin and sarafloxacin cores by hybridization of quinazolinone derivatives. This objective was tested by a comprehensive set of in vitro antibacterial assays in addition to SAR (structure-activity relationship) characterisation studies. METHODS A nucleophilic reaction of ciprofloxacin and sarafloxacin with 2-(chloromethyl)quinazolin-4(3H)-one in the presence of NaHCO3 in dimethylformamide (DMF) was performed to obtain the desired compounds 5a-j. Novel compounds were characterised by 1H, 13C- NMR and IR spectroscopy, MS and elemental analysis. In silico pharmacokinetics prediction assays and molecular docking studies were performed to explore the binding characteristics and interactions. Antibacterial activities of the novel compounds were evaluated by Broth microdilution, well diffusion and disc diffusion assays against three gram-positive (Methicillin-resistant Staphylococcus aureus (MRSA), Staphylococcus aureus and Enterococcus faecalis) and three gram-negative bacteria (Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli). RESULTS The compounds exhibited moderate to good activities against gram-positive bacteria and weak to moderate activities against gram-negative bacteria. Amongst all ciprofloxacin-derivatives, compound 5d was the most potent agent with high antibacterial activity against gram-positive bacteria, including MRSA and S. aureus ((minimum inhibitory concentration (MIC) = 16 nM for both), that is 60 times more potent than ciprofloxacin as parent drug. Compound 5i from sarafloxacin-derivatives was the most potent compound against MRSA and S. aureus (MIC = 0.125 μM). Well diffusion and disk diffusion assay results demonstrated confirmatory outcomes for the quantitative broth microdilution assay. Molecular docking study results were in accordance with the results of antibacterial activity assays. CONCLUSION The results of the current study demonstrated that the novel ciprofloxacin and sarafloxacin derivatives synthesized here have promising antibacterial activities. Particularly, compounds 5d and 5i have potential for wider antibacterial applications following further analysis.
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Ceylan Ş, Cebeci YU, Demirbaş N, Batur ÖÖ, Özakpınar ÖB. Antimicrobial, Antioxidant and Antiproliferative Activities of Novel Quinolones. ChemistrySelect 2020. [DOI: 10.1002/slct.202002779] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Şule Ceylan
- Artvin Çoruh University Department of Occupational Health and Safety 08000 Artvin TURKEY
| | | | - Neslihan Demirbaş
- Karadeniz Technical University Department of Chemistry 61080 Trabzon Turkey
| | - Özge Özşen Batur
- Eskisehir Osmangazi University Department of Chemistry 26480 Eskisehir Turkey
| | - Özlem Bingöl Özakpınar
- Marmara University Faculty of Pharmacy Department of Biochemistry, Haydarpasa 34668 Istanbul Turkey
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1,2,3-Triazole-containing hybrids with potential antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA). Eur J Med Chem 2020; 206:112686. [PMID: 32795773 DOI: 10.1016/j.ejmech.2020.112686] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 01/10/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA), as a classic reason for genuine skin and flimsy tissues diseases, is a worldwide general wellbeing risk and has already tormented humanity for a long history, creating a critical need for the development of new classes of antibacterials. 1,2,3-Triazole moiety, readily interact with diverse enzymes and receptors in organisms through weak bond interaction, is among the most common frameworks present in the bioactive molecules. 1,2,3-Triazole derivatives, especially 1,2,3-triazole-containing hybrids, possess broad-spectrum activity against a panel of clinically important bacteria including drug-resistant pathogens, so rational design of 1,2,3-triazole derivatives may open a door for the opportunities on the development of novel anti-MRSA agents. This review is an endeavour to highlight the current scenario of 1,2,3-triazole-containing hybrids with potential anti-MRSA activity, covering articles published between 2010 and 2020.
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Song F, Li Z, Bian Y, Huo X, Fang J, Shao L, Zhou M. Indole/isatin-containing hybrids as potential antibacterial agents. Arch Pharm (Weinheim) 2020; 353:e2000143. [PMID: 32667714 DOI: 10.1002/ardp.202000143] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/18/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022]
Abstract
The emergence and worldwide spread of drug-resistant bacteria have already posed a serious threat to human life, creating the urgent need to develop potent and novel antibacterial drug candidates with high efficacy. Indole and isatin (indole-2,3-dione) present a wide structural and mechanistic diversity, so their derivatives possess various pharmacological properties and occupy a salient place in the development of new drugs. Indole/isatin-containing hybrids, which demonstrate a promising activity against a panel of clinically important Gram-positive and Gram-negative bacteria, are privileged scaffolds for the discovery of novel antibacterial candidates. This review, covering articles published between January 2015 and May 2020, focuses on the development and structure-activity relationship (SAR) of indole/isatin-containing hybrids with potential application for fighting bacterial infections, to facilitate further rational design of novel drug candidates.
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Affiliation(s)
- Feng Song
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, Shandong, China.,School of Life Sciences, Dezhou University, Dezhou, Shandong, China
| | - Zhenghua Li
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, Shandong, China
| | - Yunqiang Bian
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, Shandong, China
| | - Xiankai Huo
- Department of Medical Imaging, Dezhou People's Hospital, Dezhou, Shandong, China
| | - Junman Fang
- School of Life Sciences, Dezhou University, Dezhou, Shandong, China
| | - Linlin Shao
- School of Life Sciences, Dezhou University, Dezhou, Shandong, China
| | - Meng Zhou
- School of Life Sciences, Dezhou University, Dezhou, Shandong, China
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Wang Y, Xiao F, Jin G. Structural basis of quinolone derivatives, inhibition of type I and II topoisomerases and inquiry into the relevance of bioactivity in odd or even branches with molecular docking study. J Mol Struct 2020; 1221:128869. [PMID: 32834112 PMCID: PMC7347330 DOI: 10.1016/j.molstruc.2020.128869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 12/11/2022]
Abstract
The structural modification of quinolone derivatives has been a hot spot in recent years, especially the modification of the N-1 position, which is the part that this article focuses on. In this paper, series of synthesized quinoline quaternary ammonium salts with odd and even carbon number alkyl groups in N-1 position were used to explain the influence of the alkyl side chain on activity. With respect to all the recently synthesized twenty products, the biological activity results exhibited significant antitumor and antibacterial activity with obvious differences in the target alkyliodine substituted compounds and the antibacterial activities apparently had the prominent odd-carbon number predominance. Compound 8-((4-(benzyloxy)phenyl)amino)-7-(ethoxycarbonyl)-5-propyl-[1,3]dioxolo[4,5-g]quinolin-5-ium (4d) was found to be the most potent derivative with IC50 values of 4 ± 0.88, 4 ± 0.42, 14±1.96, and 32±3.66 against A-549, Hela, SGC-7901, and L-02 cells, respectively, stronger than the positive control 5-FU and MTX. Furthermore, it had the most potent bacterial inhibitory activity of MIC value against E. coli (ATCC 29213) and Staphylococcus aureus (ATCC 8739) at 3.125 nmol mL−1. With respect to molecular simulations, in order to illustrate the possible mechanism of the difference between the series of compounds in the even or odd carbon chain alkyliodine substitution, this paper simulated the conceivable mode and explained the main interactions. Finally, we could find that the position and proportion of hydrogen bonds and other interactions in each series were regarded as the main reasons for this difference in activity.
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Affiliation(s)
- Yilin Wang
- The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, 212300, PR China
| | - Fuyan Xiao
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Guofan Jin
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
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36
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Dorababu A. Pharmacology Profile of Recently Developed Multi‐Functional Azoles; SAR‐Based Predictive Structural Modification. ChemistrySelect 2020. [DOI: 10.1002/slct.202000294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Atukuri Dorababu
- Department of Studies in ChemistrySRMPP Govt. First Grade College Huvinahadagali 583219, Karnataka India
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37
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Wang LP, Xu Z, Deng GY, Xu SL. Antiproliferative Activity of 8-methoxy Ciprofloxacin-Hydrozone/Acylhydrazone Scaffolds. Curr Top Med Chem 2020; 20:1911-1915. [PMID: 32493190 DOI: 10.2174/1568026620666200603105644] [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: 02/06/2020] [Revised: 05/01/2020] [Accepted: 05/08/2020] [Indexed: 11/22/2022]
Abstract
AIMS A series of 8-methoxy ciprofloxacin- hydrazone/acylhydrazone hybrids were evaluated for their activity against a panel of cancer cell lines including HepG2 liver cancer cells, MCF-7, doxorubicin- resistant MCF-7 (MCF-7/DOX) breast cancer cells, DU-145 and multidrug-resistant DU145 (MDR DU-145) prostate cancer cells to seek for novel anticancer agents. BACKGROUND Ciprofloxacin with excellent pharmacokinetic properties as well as few side effects, is one of the most common used antibacterial agents. Notably, Ciprofloxacin could induce cancer cells apoptosis, and cell cycle arrest at the S/G2 stage. The structure-activity relationship reveals that the introduction of the methoxy group into the C-8 position of the fluoroquinolone moiety has resulted in a greater binding affinity to the binding site, and 8-methoxy ciprofloxacin derivatives have proved a variety of biological activities even against drug-resistant organisms. However, to the best of our current knowledge, there are no studies that have reported the anticancer activity of 8-methoxy ciprofloxacin derivatives so far. Furthermore, many fluoroquinolone-hydrazone/acylhydrazone hybrids possess promising anticancer activity. Thus, it is rational to screen the anticancer activity of 8-methoxy ciprofloxacin derivatives. OBJECTIVE To enrich the structure-activity relationship and provide new anticancer candidates for further investigations. METHODS The desired 8-methoxy ciprofloxacin-hydrazone/acylhydrazone hybrids 5 and 6 were screened for their in vitro anticancer activity against liver cancer cells HepG2, breast cancer cells MCF-7, MCF7/DOX, prostate cancer cells DU-145 and MDR DU-145 by MTT assay. RESULTS Some of 8-methoxy ciprofloxacin-hydrazone hybrids showed potential activity against HepG2, MCF-7, MCF-7/DOX, DU-145 and MDR DU-145 cancer cell lines, low cytotoxicity towards VERO cells and promising inhibitory activity on tubulin polymerization. CONCLUSION Compounds 5d and 5f showed promising anticancer activity, low cytotoxicity, and potential tubulin polymerization inhibitory activity, were worthy of investigation. Other: The structure-activity relationship was enriched.
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Affiliation(s)
- Li-Ping Wang
- Liyuan Hospital Affiliated To Tongji Medical College, Huazhong University of Science and Technology, Wuhan 100191, Hubei, China
| | - Zhi Xu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Gui-Ying Deng
- Liyuan Hospital Affiliated To Tongji Medical College, Huazhong University of Science and Technology, Wuhan 100191, Hubei, China
| | - Sha-Li Xu
- Liyuan Hospital Affiliated To Tongji Medical College, Huazhong University of Science and Technology, Wuhan 100191, Hubei, China
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38
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Tadić Đ, Gramblicka M, Mistrik R, Flores C, Piña B, Bayona JM. Elucidating biotransformation pathways of ofloxacin in lettuce (Lactuca sativa L). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:114002. [PMID: 31991361 DOI: 10.1016/j.envpol.2020.114002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/13/2020] [Accepted: 01/15/2020] [Indexed: 06/10/2023]
Abstract
Antibiotics can be uptaken by plants from soil desorption or directly from irrigation water, but their metabolization pathways in plants are largely unknown. In this paper, an analytical workflow based on high-resolution mass spectrometry was applied for the systematic identification of biotransformation products of ofloxacin in lettuce. The targeted metabolites were selected by comparing the mass chromatograms of exposed with control samples using an advanced spectra-processing method (Fragment Ion Search). The innovative methodology presented allowed us to identify a total of 11 metabolites, including 5 ofloxacin metabolites that are being reported for the first time in plants. Accordingly, major transformation pathways were proposed revealing insight into how ofloxacin and related chemicals are metabolized in lettuce. Furthermore, the influence of biotransformation on potential residual antimicrobial activity of identified compounds was discussed. Human exposure to antibiotics at doses below the minimum inhibitory concentrations is crucial in human risk assessment, including food ingestion; however, in the case of ofloxacin presented results reveal that plant metabolites should also be considered so as not to underestimate their risk.
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Affiliation(s)
- Đorđe Tadić
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, Spanish Council for Scientific Research (IDAEA-CSIC), Jordi Girona 18, E-08034, Barcelona, Spain
| | - Michal Gramblicka
- HighChem Ltd., Leškova 11, 811 04, Bratislava, Slovakia; Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | | | - Cintia Flores
- Mass Spectrometry Laboratory/Organic Contaminants, Institute of Environmental Assessment and Water Research (IDAEA), CSIC, Barcelona, 08034, Spain
| | - Benjamin Piña
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, 08034, Barcelona, Spain
| | - Josep Maria Bayona
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, Spanish Council for Scientific Research (IDAEA-CSIC), Jordi Girona 18, E-08034, Barcelona, Spain.
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39
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Indole-based derivatives as potential antibacterial activity against methicillin-resistance Staphylococcus aureus (MRSA). Eur J Med Chem 2020; 194:112245. [DOI: 10.1016/j.ejmech.2020.112245] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/20/2020] [Accepted: 03/16/2020] [Indexed: 12/15/2022]
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Feng D, Zhang A, Yang Y, Yang P. Coumarin-containing hybrids and their antibacterial activities. Arch Pharm (Weinheim) 2020; 353:e1900380. [PMID: 32253782 DOI: 10.1002/ardp.201900380] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/09/2020] [Accepted: 03/17/2020] [Indexed: 12/31/2022]
Abstract
Infections caused by Gram-positive and -negative bacteria are one of the foremost causes of morbidity and mortality globally. Antibiotics are the mainstay of therapy for bacterial infections, but the emergence and wide spread of drug-resistant pathogens have already become a huge issue for public healthcare systems. The coumarin moiety, which is ubiquitous in nature, could bind to the B subunit of DNA gyrase in bacteria and inhibit DNA supercoiling by blocking the ATPase activity; hence, coumarin derivatives possess potential antibacterial activity. Several coumarin-containing hybrids such as coumermycin A1, clorobiocin, and novobiocin have already been used in clinical practice for the treatment of various bacterial infections; thus, it is conceivable that hybridization of the coumarin moiety with other antibacterial pharmacophores may provide opportunities for the development of novel antibiotics. This review outlines the advances in coumarin-containing hybrids with antibacterial potential in the recent 5 years and the structure-activity relationships are also discussed.
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Affiliation(s)
- Dongxu Feng
- Department of Disinfection Center, Zhuji Affiliated Hospital of Shaoxing University, Shaoxing, Zhejiang, China
| | - Aihua Zhang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yuan Yang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, Guizhou, China.,Dong Medicine Key Laboratory of Hunan Province, Department of Laboratory Medicine, Hunan University of Medicine, Huaihua, Hunan, China
| | - Peng Yang
- Dong Medicine Key Laboratory of Hunan Province, Department of Laboratory Medicine, Hunan University of Medicine, Huaihua, Hunan, China
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Zhang YZ, Liu HL, He QS, Xu Z. The In Vitro Anticancer Activity and Potential Mechanism of Action of 1-[(1R,2S)-2-fluorocyclopropyl]Ciprofloxacin-(4-methyl/phenyl/benzyl-3- aryl)-1,2,4-triazole-5(4H)-thione Hybrids. Curr Top Med Chem 2020; 20:1493-1498. [PMID: 32156237 DOI: 10.2174/1568026620666200310123723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 02/02/2020] [Accepted: 02/07/2020] [Indexed: 11/22/2022]
Abstract
AIM Development of 1-[(1R, 2S)-2-fluorocyclopropyl]ciprofloxacin-1,2,4-triazole-5(4H)- thione hybrids as potential dual-acting mechanism anticancer agent to overcome the drug resistance. BACKGROUND Chemotherapy is an essential tool for the treatment of lung and female breast cancers, and numerous anticancer agents have been launched for this purpose. However, the clinical outcomes of chemotherapy are usually far from satisfactory due to the side effects and resistance to chemotherapeutic drugs. Thus, it is urgent to develop novel anti-lung and anti-breast cancer agents. OBJECTIVE The primary objective of this study was to evaluate the potential of bis-isatin scaffolds with alkyl/ether linkers between the two isatin moieties against different human breast cancer cell lines including A549, MCF-7 and their drug-resistant counterparts A549/CDDP, MCF-7/ADM cells. METHODS The 1-[(1R, 2S)-2-fluorocyclopropyl]ciprofloxacin-(4-methyl/phenyl/benzyl-3-aryl)-1,2,4- triazole-5(4H)-thione hybrids were screened for their in vitro activity against drug-sensitive lung (A549), breast (MCF-7) and their drug-resistant counterparts A549/CDDP (cisplatin-resistant), MCF- 7/ADM (doxorubicin-resistant) cancer cell lines by MTT assay. The inhibitory activity of these hybrids against topoisomerase II and EGFR was also evaluated to investigate the potential mechanism of action of these hybrids. RESULTS The most prominent hybrid 7k (IC50: 37.28-49.05 µM) was comparable to Vorinostat against A549 and A549/CDDP lung cancer cells, and was 2.79-2.94 times more active than Vorinostat against MCF-7 and MCF-7/ADM breast cancer cell lines. Moreover, hybrid 7k (IC50: 8.6 and 16.4 µM) also demonstrated dual inhibition against topoisomerase II and EGFR. CONCLUSION The 1-[(1R, 2S)-2-fluorocyclopropyl]ciprofloxacin-1,2,4-triazole-5(4H)-thione hybrids possess equally activity against both drug-sensitive cancer cells and their drug-resistant counterparts, and the majority of them were no inferior to the reference Vorinostat. The mechanistic study revealed that these hybrids could inhibit both topoisomerase II and EGFR, so these hybrids can be developed as dual-acting mechanism anticancer agents.
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Affiliation(s)
- Ya-Zhou Zhang
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Hai-Lin Liu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Qian-Song He
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Zhi Xu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
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Characterization of Integrons and Antimicrobial Resistance in Escherichia coli Sequence Type 131 Isolates. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2020; 2020:3826186. [PMID: 32184909 PMCID: PMC7060437 DOI: 10.1155/2020/3826186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/05/2020] [Accepted: 01/14/2020] [Indexed: 01/17/2023]
Abstract
Background Escherichia coli sequence type 131 (ST131) is an important multidrug-resistant extraintestinal pathogen, which can cause many kinds of infections. Integrons may play a crucial role in the dissemination of antibiotic resistance genes. The purpose of this study was to characterize the prevelance of integrons among E. coli ST131 strains in China. Methods Eighty-three E. coli ST131 strains in China. E. coli ST131 strains in China. Results Overall, 26.5% (22/83) of the E. coli ST131 strains in China. dfrA17-aadA5 and aac(6')-Ib-cr-cmlA5. Only one type of Pc promoter variant was detected among 22 integron-positive isolates (PcW). In vivo transfer of integron was successful for 9 of integron-positive E. coli ST131 strains in China. E. coli ST131 strains in China. Conclusions Our study showed a low prevalence of integrons was detected in E. coli ST131. Continued surveillance of this mobile genetic element should be performed to study the evolution of antibiotic resistance among E. coli ST131.E. coli ST131 strains in China. E. coli ST131 strains in China.
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Zhang Y, Du H, Liu H, He Q, Xu Z. Isatin dimers and their biological activities. Arch Pharm (Weinheim) 2020; 353:e1900299. [DOI: 10.1002/ardp.201900299] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/20/2019] [Accepted: 12/28/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Ya‐Zhou Zhang
- Teaching and Research Office of Analytical Chemistry, School of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guizhou China
| | - Hong‐Zhi Du
- Teaching and Research Office of Analytical Chemistry, School of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guizhou China
| | - Hai‐Lin Liu
- Teaching and Research Office of Analytical Chemistry, School of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guizhou China
| | - Qian‐Song He
- Teaching and Research Office of Analytical Chemistry, School of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guizhou China
| | - Zhi Xu
- Teaching and Research Office of Analytical Chemistry, School of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guizhou China
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Guo RF, Yan HT, Liu RX, Li HC, Liu YC, Chen ZF, Liang H. Structural characterization and pharmacological assessment in vitro/ in vivo of a new copper(II)-based derivative of enrofloxacin. Metallomics 2020; 12:2145-2160. [PMID: 33300517 DOI: 10.1039/d0mt00155d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enrofloxacin (EFX) was selected as the medicinal ligand to afford a new copper(ii)-based complex, EFX-Cu, which was structurally characterized by spectroscopic analyses including X-ray single crystal diffraction. It was also stable and could retain the coordination state in aqueous solution. The in vitro antibacterial activity of EFX-Cu against a panel of pathogenic bacteria was about the same as that of EFX, except that it was twice as active against E. coli. The in vivo test on mice gave a LD50 value of 8148 mg kg-1 for EFX-Cu, which was much lower than those for EFX (LD50, 5312 mg kg-1) and its clinically used sodium salt, EFX-Na (LD50, 1421 mg kg-1). In addition, no obvious lesions in the organs of the dead mice were found by histopathological examination. Pharmacokinetic studies on rats suggested similar pharmacokinetics between EFX-Cu and EFX. On the other hand, EFX-Cu showed higher acute toxicity than EFX-Na in zebrafish, which was inconsistent with that in mice. The ROS-related inflammation and anti-inflammatory assay of EFX-Cu, respectively, in normal cells and zebrafish could be ascribed to its ROS-related redox property. Unfortunately, the final in vivo therapeutic assay in the E. coli-infected mouse model indicated that the therapeutic effect of EFX-Cu, mainly in terms of mortality in mice, was found to be lower than that of EFX-Na at the same dosage (800 mg kg-1, continuous gavage), although the contradictory factors between toxicity and antibacterial activity could not be excluded in this trial.
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Affiliation(s)
- Rui-Feng Guo
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China.
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Zhu JX, Lu Y, Chen J, Chen J, Zhang H, Bao X, Ye X, Wang H. Total synthesis of quinolactacin-H from marine-derived Penicillium sp. ENP701 and biological activities. RSC Adv 2020; 10:24251-24254. [PMID: 35516178 PMCID: PMC9055059 DOI: 10.1039/d0ra05244b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 06/16/2020] [Indexed: 11/21/2022] Open
Abstract
The quinolactacins are a family of pyrroloquinoline-type natural products from Penicillium sp. From the organic extract of Penicillium sp. ENP701 fermentation broth, a microorganism from the east China sea, one new quinolactacin was isolated and named quinolactacin-H. The structure of quinolactacin-H was determined by spectroscopic analysis and the absolute configurations by X-ray crystallographic analysis. Enantioselective total synthesis of (R)-(+)-quinolactacin-H and (S)-(−)-quinolactacin-H was achieved. When assayed through crystal violet (CV) microtiter plate biofilm, both (R) and (S)-quinolactacin-H showed a strong inhibition and dispersion of Pseudomonas aeruginosa PAO1 biofilms. Thus, quinolactacins could be proposed and developed as natural anti-bioflm agents in order to solve the problem of microbial resistance in future. Quinolactacin-H is a new pyrroloquinoline-type natural product isolated from a marine Penicillium sp. ENP701. We total synthesize (R)- and (S)-quinolactacin-H. Both (R)- and (S)-quinolactacin-H show inhibit and disperse Pseudomonas aeruginosa PAO1 biofilms.![]()
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Affiliation(s)
- Jin-xin Zhu
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
| | - Yaojia Lu
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
| | - Jun Chen
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
| | - Jianwei Chen
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
| | - Huawei Zhang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
| | - Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
| | - Xinyi Ye
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
| | - Hong Wang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- China
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46
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Ma T, Chen R, Xue H, Miao Z, Chen L, Zhang H, Shi X. Di‐isatin heteronuclear compounds and their antibacterial activity. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tianwei Ma
- Xuzhou Women & Children's Health Care Hospital Xuzhou China
| | - Rongxing Chen
- Xuzhou Women & Children's Health Care Hospital Xuzhou China
| | - Huarui Xue
- Xuzhou Women & Children's Health Care Hospital Xuzhou China
| | - Zhong Miao
- Xuzhou Women & Children's Health Care Hospital Xuzhou China
| | - Liyan Chen
- Xuzhou Women & Children's Health Care Hospital Xuzhou China
| | - Hao Zhang
- Department of Neurosurgery, Second DivisionXuzhou Central Hospital Xuzhou 221009 China
| | - Xiangkui Shi
- Xuzhou Women & Children's Health Care Hospital Xuzhou China
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47
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Gao F, Xiao J, Huang G. Current scenario of tetrazole hybrids for antibacterial activity. Eur J Med Chem 2019; 184:111744. [DOI: 10.1016/j.ejmech.2019.111744] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 06/05/2019] [Accepted: 09/26/2019] [Indexed: 12/18/2022]
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48
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Design, Synthesis and Biological Evaluation of New Piperazin-4-yl-(acetyl-thiazolidine-2,4-dione) Norfloxacin Analogues as Antimicrobial Agents. Molecules 2019; 24:molecules24213959. [PMID: 31683749 PMCID: PMC6864599 DOI: 10.3390/molecules24213959] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 01/12/2023] Open
Abstract
In an effort to improve the antimicrobial activity of norfloxacin, a series of hybrid norfloxacin–thiazolidinedione molecules were synthesized and screened for their direct antimicrobial activity and their anti-biofilm properties. The new hybrids were intended to have a new binding mode to DNA gyrase, that will allow for a more potent antibacterial effect, and for activity against current quinolone-resistant bacterial strains. Moreover, the thiazolidinedione moiety aimed to include additional anti-pathogenicity by preventing biofilm formation. The resulting compounds showed promising direct activity against Gram-negative strains, and anti-biofilm activity against Gram-positive strains. Docking studies and ADMET were also used in order to explain the biological properties and revealed some potential advantages over the parent molecule norfloxacin.
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49
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A new calcium(II) complex of marbofloxacin showing much lower acute toxicity with retained antibacterial activity. J Inorg Biochem 2019; 203:110905. [PMID: 31707333 DOI: 10.1016/j.jinorgbio.2019.110905] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 10/20/2019] [Accepted: 10/20/2019] [Indexed: 11/20/2022]
Abstract
Marbofloxacin (MB) is a newly developed veterinary drug with broad-spectrum antibacterial activity. In this study, a new calcium(II)-based complex of marbofloxacin, MB-Ca, was synthesized and structurally characterized by IR, ESI-MS, UV-Vis and single crystal X-ray diffraction analysis. The characterization of this complex in solution state indicated that the coordinated MB-Ca was partly retained, along with the monomeric and dimeric forms of MB. It also showed satisfactory water solubility (1.89 mg/mL), comparing with MB (2.82 mg/mL) at 35 °C. The in vitro antibacterial activity of MB-Ca was also screened towards a series of typical pathogenic bacteria, and determined by the methods of turbidimetry and disc diffusion. The results indicated it showed comparable antibacterial activity to MB. However, it exhibited higher inhibitive ability in vitro on DNA gyrase than MB alone. Furthermore, MB-Ca showed significantly lower acute toxicity (LD50, 3186 mg/kg) than MB (LD50, 1294 mg/kg) in mice, based on the in vivo acute toxicity test. The histopathological examination on the major organs of the mice by the oral administration of MB-Ca did not show obvious organic lesions, which is similar to those treated by MB. The research results suggest that MB-Ca could be further developed into a new promising metal-based veterinary drug and a better substitute of MB, showing unabated antibacterial activity along with lower toxicity.
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50
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Liu B, Wang G, Peng Y, Tang X, Hu G. Design, synthesis, and in vitro antimycobacterial activities of butylene tethered 7‐fluoroisatin‐isatin scaffolds. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Bi Liu
- School of Nuclear Technology and Chemistry and BiologyHubei University of Science and Technology Xianning People's Republic of China
| | - Gang‐Qiang Wang
- School of Nuclear Technology and Chemistry and BiologyHubei University of Science and Technology Xianning People's Republic of China
| | - Yan‐Hong Peng
- School of Nuclear Technology and Chemistry and BiologyHubei University of Science and Technology Xianning People's Republic of China
| | - Xiu‐Qin Tang
- School of Nuclear Technology and Chemistry and BiologyHubei University of Science and Technology Xianning People's Republic of China
| | - Guo‐Wen Hu
- School of Nuclear Technology and Chemistry and BiologyHubei University of Science and Technology Xianning People's Republic of China
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