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Roy S, Raj KC H, Adhikary S, Erickson AN, Alam MA. Efficient Synthesis of Thiazole-Fused Bisnoralcohol Derivatives as Potential Therapeutic Agents. ACS OMEGA 2024; 9:23283-23293. [PMID: 38854539 PMCID: PMC11154900 DOI: 10.1021/acsomega.3c09721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/21/2024] [Accepted: 05/09/2024] [Indexed: 06/11/2024]
Abstract
Thiazole derivatives are known for a wide range of therapeutic properties. Bisnoralcohol is an inexpensive natural product obtained by the biodegradation of sterols. This article describes an efficient synthesis of a library of thiazole-fused bisnoralcohol derivatives. These novel compounds have been studied for their antineoplastic and antibacterial properties, which led to the discovery of hit compounds with therapeutic potential. The antibacterial compound is noncytotoxic and nonhemolytic against cancer cell lines and sheep red blood cells, respectively. Several of the antineoplastic compounds showed activity against human cancer cell lines with growth inhibition at submicromolar concentration.
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Affiliation(s)
- Subrata Roy
- Department
of Chemistry and Physics, College of Sciences and Mathematics, Arkansas State University, Jonesboro, Arkansas 70401, United States
- Enviromental
Sciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
| | - Hansa Raj KC
- Molecular
Biosciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
| | - Sanjay Adhikary
- Department
of Chemistry and Physics, College of Sciences and Mathematics, Arkansas State University, Jonesboro, Arkansas 70401, United States
| | - Alexander N. Erickson
- Department
of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Mohammad Abrar Alam
- Department
of Chemistry and Physics, College of Sciences and Mathematics, Arkansas State University, Jonesboro, Arkansas 70401, United States
- Enviromental
Sciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
- Molecular
Biosciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
- Arkansas
Biosciences Institute, Arkansas State University, Jonesboro, Arkansas 72401, United States
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Roy S, Budhathoki S, Iqbal AD, Erickson AN, Ali MA, Alam MA. Domino Reaction Protocol to Synthesize Benzothiophene-Derived Chemical Entities as Potential Therapeutic Agents. J Org Chem 2024; 89:3781-3799. [PMID: 38408196 PMCID: PMC10947603 DOI: 10.1021/acs.joc.3c02646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
An efficient synthesis of 3-amino-2-formyl-functionalized benzothiophenes by a domino reaction protocol and their use to synthesize a library of novel scaffolds have been reported. Reactions of ketones and 1,3-diones with these amino aldehyde derivatives formed a series of benzothieno[3,2-b]pyridine and 3,4-dihydro-2H-benzothiopheno[3,2-b]quinolin-1-one, respectively. A plausible mechanism for the formation of fused pyridine derivatives by the Friedlander reaction has been elucidated by density functional theory (DFT) calculations. Furthermore, hydrazones were obtained by reacting the aldehyde functional group of benzothiophenes with different hydrazine derivatives. Preliminary screening of these compounds against several bacterial strains and cancer cell lines led to the discovery of several hit molecules. Hydrazone and benzothieno[3,2-b]pyridine derivatives are potent cytotoxic and antibacterial agents, respectively. One of the potent compounds effected ∼97% growth inhibition of the LOX IMVI cell line at 10 μM concentration.
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Affiliation(s)
- Subrata Roy
- Department of Chemistry and Physics, College of Sciences and Mathematics, Arkansas State University, Jonesboro, Arkansas 70401, United States
- Environmental Sciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
| | - Shailesh Budhathoki
- Molecular Biosciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
| | - Ahmed D Iqbal
- Department of Chemistry and Physics, College of Sciences and Mathematics, Arkansas State University, Jonesboro, Arkansas 70401, United States
| | - Alexander N Erickson
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Mohamad Akbar Ali
- Department of Chemistry and Center for Catalysis and Separations, Khalifa University of Science and Technology, P.O. Box 127788 Abu Dhabi, United Arab Emirates
| | - Mohammad Abrar Alam
- Department of Chemistry and Physics, College of Sciences and Mathematics, Arkansas State University, Jonesboro, Arkansas 70401, United States
- Environmental Sciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
- Molecular Biosciences Program, Arkansas State University, Jonesboro, Arkansas 72401, United States
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, Arkansas 72401, United States
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Li W, Yang X, Ahmad N, Zhang SL, Zhou CH. Novel aminothiazoximone-corbelled ethoxycarbonylpyrimidones with antibiofilm activity to conquer Gram-negative bacteria through potential multitargeting effects. Eur J Med Chem 2024; 268:116219. [PMID: 38368710 DOI: 10.1016/j.ejmech.2024.116219] [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: 12/31/2023] [Revised: 01/31/2024] [Accepted: 02/04/2024] [Indexed: 02/20/2024]
Abstract
The emergence of drug-resistant microorganisms threatens human health, and it is usually exacerbated by the formation of biofilm, which forces the development of new antibacterial agents with antibiofilm activity. In this work, a novel category of aminothiazoximone-corbelled ethoxycarbonylpyrimidones (ACEs) was designed and synthesized, and some of the prepared ACEs showed potent bioactivity against the tested bacteria. In particular, imidazolyl ACE 6c showed better inhibitory activity towards Acinetobacter baumannii and Escherichia coli with MIC values both of 0.0066 mmol/L than norfloxacin. It was also revealed that imidazolyl ACE 6c not only possessed inconspicuous hemolytic rate and cytotoxicity, low drug resistance and no risk of penetrating the blood-brain barrier, but also exhibited obvious biofilm inhibition and eradication activities. The preliminary mechanism research suggested that imidazolyl ACE 6c could induce metabolic dysfunction by deactivating lactate dehydrogenase and promote the accumulation of reactive oxygen species to decrease the reduced glutathione and ultimately cause oxidative damage in bacteria. Furthermore, ACE 6c was also found that could insert into DNA to form the supramolecular complex of 6c-DNA and trigger cell death. The multidimensional effect might promote bacterial cell rupture, leading to the leakage of intracellular content. These findings manifested that novel imidazolyl ACE 6c as a potential multitargeting antibacterial agent with potent antibiofilm activity could provide new possibility for the treatment of refractory biofilm-intensified bacterial infections.
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Affiliation(s)
- Wei 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
| | - Xi Yang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Nisar Ahmad
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Shao-Lin Zhang
- School of Pharmaceutical Sciences, Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chongqing University, Chongqing, 401331, 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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Zuo Y, Liu M, Du J, Zhang T, Wang X, Wang C. Ir(iii)/Ag(i)-catalyzed directly C-H amidation of arenes with OH-free hydroxyamides as amidating agents. RSC Adv 2024; 14:5975-5980. [PMID: 38362076 PMCID: PMC10867557 DOI: 10.1039/d4ra00517a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 02/09/2024] [Indexed: 02/17/2024] Open
Abstract
A versatile Ir(iii)-catalyzed C-H amidation of arenes by employing readily available and stable OH-free hydroxyamides as a novel amidation source. The reaction occurred with high efficiency and tolerance of a range of functional groups. A wide scope of aryl OH-free hydroxyzamides, including conjugated and challenging non-conjugated OH-free hydroxyzamides, were capable of this transformation and no addition of an external oxidant is required. This protocol provided a simple, straightforward and economic method to a variety N-(2-(1H-pyrazol-1-yl)alkyl)amide derivates with good to excellent yield. Mechanistic study demonstrated that reversible C-H bond functionalisation might be involved in this reaction.
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Affiliation(s)
- Youpeng Zuo
- School of Chemistry and Chemical Engineering, Suzhou University Suzhou 234000 P. R. China
| | - Meijun Liu
- School of Chemistry and Chemical Engineering, Suzhou University Suzhou 234000 P. R. China
| | - Jun Du
- School of Chemistry and Chemical Engineering, Suzhou University Suzhou 234000 P. R. China
| | - Tianren Zhang
- School of Chemistry and Chemical Engineering, Suzhou University Suzhou 234000 P. R. China
| | - Xiaoqing Wang
- School of Chemistry and Chemical Engineering, Suzhou University Suzhou 234000 P. R. China
| | - Cong Wang
- School of Chemistry and Chemical Engineering, Suzhou University Suzhou 234000 P. R. China
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St. Pierre J, Roberts J, Alam MA, Shields RC. Construction of an arrayed CRISPRi library as a resource for essential gene function studies in Streptococcus mutans. Microbiol Spectr 2024; 12:e0314923. [PMID: 38054713 PMCID: PMC10783072 DOI: 10.1128/spectrum.03149-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/08/2023] [Indexed: 12/07/2023] Open
Abstract
IMPORTANCE The construction of arrayed mutant libraries has advanced the field of bacterial genetics by allowing researchers to more efficiently study the exact function and importance of encoded genes. In this study, we constructed an arrayed clustered regularly interspaced short palindromic repeats interference (CRISPRi) library, known as S treptococcus mutans arrayed CRISPRi (SNAP), as a resource to study >250 essential and growth-supporting genes in Streptococcus mutans. SNAP will be made available to the research community, and we anticipate that its distribution will lead to high-quality, high-throughput, and reproducible studies of essential genes.
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Affiliation(s)
- Jackson St. Pierre
- Department of Biological Sciences, Arkansas State University, Jonesboro, Arkansas, USA
- New York Institute of Technology College of Osteopathic Medicine, Jonesboro, Arkansas, USA
| | - Justin Roberts
- Department of Chemistry & Physics, Arkansas State University, Jonesboro, Arkansas, USA
- University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Mohammad A. Alam
- Department of Chemistry & Physics, Arkansas State University, Jonesboro, Arkansas, USA
| | - Robert C. Shields
- Department of Biological Sciences, Arkansas State University, Jonesboro, Arkansas, USA
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Alam MA. Pyrazole: an emerging privileged scaffold in drug discovery. Future Med Chem 2023; 15:2011-2023. [PMID: 37933613 PMCID: PMC10652296 DOI: 10.4155/fmc-2023-0207] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023] Open
Abstract
Pyrazole or 1H-pyrazole, a five-membered 1,2-diazole, is found in several approved drugs and some bioactive natural products. A myriad number of derivatives of this small molecule have been reported in clinical and preclinical studies for the potential treatment of several diseases. The number of drugs containing a pyrazole nucleus has increased significantly in the last 10 years. Some of the best-selling drugs in this class are ibrutinib, ruxolitinib, axitinib, niraparib and baricitinib, and are used to treat different types of cancers; lenacapavir to treat HIV; riociguat to treat pulmonary hypertension; and sildenafil to treat erectile dysfunction. Several aniline-derived pyrazole compounds have been reported as potent antibacterial agents with selective activity against methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci. Here, we discuss the pyrazole-derived drugs reported up to September 2023.
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Affiliation(s)
- Mohammad Abrar Alam
- Department of Chemistry & Physics, College of Sciences & Mathematics, Arkansas State University Jonesboro, Jonesboro, AR 72467, USA
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