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Tordato É, Gonçalves RO, Baldassari LL, Jiménez CA, Lüdtke DS, Paixão MW. Expanding the Chemical Space of Electrophilic β-Glycosyl β-Lactams through Photoinduced Diastereoselective Functionalization. Org Lett 2024; 26:5500-5505. [PMID: 38900999 PMCID: PMC11232025 DOI: 10.1021/acs.orglett.4c01844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/14/2024] [Accepted: 06/18/2024] [Indexed: 06/22/2024]
Abstract
Herein, we present a photoinduced diastereoselective C-3 functionalization of electrophilic β-glycosyl β-lactams. The developed protocol is simple, mild, and scalable and explores the use of 3-exomethylene β-lactams as reaction partners in a Giese type reaction. The key nucleophilic alkyl radical is generated by a photoinduced electron transfer process in the EDA complex formed by NHPI and Hantzsch esters. The diastereoselective hydrogen atom transfer to the β-lactam radical intermediate enables the synthesis of various N-phenyl β-glycosyl β-lactams.
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Affiliation(s)
- Éverton
A. Tordato
- Laboratory
for Sustainable Organic Synthesis and Catalysis - Chemistry Department
− Federal University of São Carlos − UFSCar,
São Carlos, São Paulo 13565-905, Brazil
| | - Renan O. Gonçalves
- Laboratory
for Sustainable Organic Synthesis and Catalysis - Chemistry Department
− Federal University of São Carlos − UFSCar,
São Carlos, São Paulo 13565-905, Brazil
| | - Lucas L. Baldassari
- Laboratory
for Sustainable Organic Synthesis and Catalysis - Chemistry Department
− Federal University of São Carlos − UFSCar,
São Carlos, São Paulo 13565-905, Brazil
- Institute
of Chemistry, Federal University of Rio
Grande do Sul - UFRGS, Porto
Alegre, Rio Grande do Sul 91501-970, Brazil
| | - Claudio A. Jiménez
- Department
of Organic Chemistry, Faculty of Chemical
Sciences, Universidad de Concepción, Concepción 4130000, Chile
| | - Diogo S. Lüdtke
- Institute
of Chemistry, Federal University of Rio
Grande do Sul - UFRGS, Porto
Alegre, Rio Grande do Sul 91501-970, Brazil
| | - Márcio W. Paixão
- Laboratory
for Sustainable Organic Synthesis and Catalysis - Chemistry Department
− Federal University of São Carlos − UFSCar,
São Carlos, São Paulo 13565-905, Brazil
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Malebari AM, Duffy Morales G, Twamley B, Fayne D, Khan MF, McLoughlin EC, O’Boyle NM, Zisterer DM, Meegan MJ. Synthesis, Characterisation and Mechanism of Action of Anticancer 3-Fluoroazetidin-2-ones. Pharmaceuticals (Basel) 2022; 15:ph15091044. [PMID: 36145265 PMCID: PMC9501633 DOI: 10.3390/ph15091044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
The stilbene combretastatin A-4 (CA-4) is a potent microtubule-disrupting agent interacting at the colchicine-binding site of tubulin. In the present work, the synthesis, characterisation and mechanism of action of a series of 3-fluoro and 3,3-difluoro substituted β-lactams as analogues of the tubulin-targeting agent CA-4 are described. The synthesis was achieved by a convenient microwave-assisted Reformatsky reaction and is the first report of 3-fluoro and 3,3-difluoro β-lactams as CA-4 analogues. The β-lactam compounds 3-fluoro-4-(3-hydroxy-4-methoxyphenyl)-1-(3,4,5-trimethoxy phenyl)azetidin-2-one 32 and 3-fluoro-4-(3-fluoro-4-methoxyphenyl)-1-(3,4,5-trimethoxyphenyl)azetidin-2-one) 33 exhibited potent activity in MCF-7 human breast cancer cells with IC50 values of 0.075 µM and 0.095 µM, respectively, and demonstrated low toxicity in non-cancerous cells. Compound 32 also demonstrated significant antiproliferative activity at nanomolar concentrations in the triple-negative breast cancer cell line Hs578T (IC50 0.033 μM), together with potency in the invasive isogenic subclone Hs578Ts(i)8 (IC50 = 0.065 μM), while 33 was also effective in MDA-MB-231 cells (IC50 0.620 μM). Mechanistic studies demonstrated that 33 inhibited tubulin polymerisation, induced apoptosis in MCF-7 cells, and induced a downregulation in the expression of anti-apoptotic Bcl2 and survivin with corresponding upregulation in the expression of pro-apoptotic Bax. In silico studies indicated the interaction of the compounds with the colchicine-binding site, demonstrating the potential for further developing novel cancer therapeutics as microtubule-targeting agents.
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Affiliation(s)
- Azizah M. Malebari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Trinity Biomedical Sciences Institute, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
| | - Gabriela Duffy Morales
- Trinity Biomedical Sciences Institute, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity College Dublin, Dublin 2, D02 PN40 Dublin, Ireland
| | - Darren Fayne
- Trinity Biomedical Sciences Institute, School of Biochemistry and Immunology, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
| | - Mohemmed Faraz Khan
- Trinity Biomedical Sciences Institute, School of Biochemistry and Immunology, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
| | - Eavan C. McLoughlin
- Trinity Biomedical Sciences Institute, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
| | - Niamh M. O’Boyle
- Trinity Biomedical Sciences Institute, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
| | - Daniela M. Zisterer
- Trinity Biomedical Sciences Institute, School of Biochemistry and Immunology, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
| | - Mary J. Meegan
- Trinity Biomedical Sciences Institute, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590 Dublin, Ireland
- Correspondence:
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Singh VN, Sharma S. Stereoselective synthesis and characterization of monocyclic
cis‐
β‐lactams containing 5‐methyl‐1,3,4‐thiadiazole‐2‐thiol moiety. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vedeshwar N. Singh
- Department of Chemistry National Institute of Technology Patna Patna India
| | - Sitaram Sharma
- Department of Chemistry National Institute of Technology Patna Patna India
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Singh VN, Sharma S. The facile and efficient synthesis of novel monocyclic cis-β-lactam conjugates with a 1-methyl-1 H-imidazole-2-thiol nucleus. NEW J CHEM 2021. [DOI: 10.1039/d1nj03566e] [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
We developed a facile and efficient synthesis of novel monocyclic cis-β-lactam conjugates with a 1-methyl-1H-imidazole-2-thiol nucleus through a ketene-imine [2+2] cycloaddition reaction of acyl chloride and different Schiff bases.
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Affiliation(s)
- Vedeshwar Narayan Singh
- Department of Chemistry, National Institute of Technology Patna, Ashok Rajpath, Patna-800005, Bihar, India
| | - Sitaram Sharma
- Department of Chemistry, National Institute of Technology Patna, Ashok Rajpath, Patna-800005, Bihar, India
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Bhargava G, Mann MK, Naikoo RA. 3-Butadienyl- β-lactams: A useful synthon for functionalized heterocycles. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1813778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Gaurav Bhargava
- Department of Chemical Sciences, I. K. Gujral Punjab Technical University, Kapurthala, India
| | - Maninderjeet K. Mann
- Department of Chemical Sciences, I. K. Gujral Punjab Technical University, Kapurthala, India
| | - Rayees Ahmad Naikoo
- Department of Chemical Sciences, I. K. Gujral Punjab Technical University, Kapurthala, India
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Kawabata T, Yang P, Yoshimura T, Sasamori T, Tokitoh N, Morisaki K. Protonation-Assisted Conjugate Addition of Axially Chiral Enolates: Asymmetric Synthesis of β-Lactams with Contiguous Tetrasubstituted Stereocenters from α-Amino Acids via Memory of Chirality. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)56] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mohamadzadeh M, Zarei M, Vessal M. Synthesis, in vitro biological evaluation and in silico molecular docking studies of novel β-lactam-anthraquinone hybrids. Bioorg Chem 2019; 95:103515. [PMID: 31884134 DOI: 10.1016/j.bioorg.2019.103515] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/20/2019] [Accepted: 12/16/2019] [Indexed: 02/09/2023]
Abstract
Schiff bases from 2-aminoanthraquinone have been prepared by reaction with aldehydes and used to prepare novel β-lactam-anthraquinone hybrids via [2+2] ketene-imine cycloaddition (Staudinger reaction) reaction. In vitro antibacterial studies of all synthesized compound were carried out against three gram-positive strains Staphylococcus aureus (Methicillin-resistant strain), Enterococcus faecium (Vancomycin-resistant strain) and Bacillus subtilis, and two gram-negative strains Escherichia coli and Pseudomonas aeruginosa. These compounds were further evaluated for their in vitro antifungal activity against Candida albicans, Aspergillus niger and Trichophyton mentagrophytes. Hybrid compounds showed moderate to excellent antibacterial and antifungal activities. Surprisingly, among the tested compounds, some of them revealed equal antibacterial and antifungal properties and even better than standards. In addition, results demonstrated that the new hybrids are very promising antibacterial agents against resistant strains. Also molecular docking studies were carried out by Autodoc software. Penicillin-binding protein 2a (PDB ID: 1VQQ) from methicillin-resistant Staphylococcus aureus strain used as a target which good binding interactions were observed.
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Affiliation(s)
- Masoud Mohamadzadeh
- Department of Biochemistry, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Maaroof Zarei
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas 71961, Iran.
| | - Mahmood Vessal
- Department of Biochemistry, Shiraz Branch, Islamic Azad University, Shiraz, Iran
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