1
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Moreno LM, Quiroga J, Abonia R, Crespo MDP, Aranaga C, Martínez-Martínez L, Sortino M, Barreto M, Burbano ME, Insuasty B. Synthesis of Novel Triazine-Based Chalcones and 8,9-dihydro-7 H-pyrimido[4,5- b][1,4]diazepines as Potential Leads in the Search of Anticancer, Antibacterial and Antifungal Agents. Int J Mol Sci 2024; 25:3623. [PMID: 38612435 PMCID: PMC11012124 DOI: 10.3390/ijms25073623] [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: 11/13/2023] [Revised: 01/10/2024] [Accepted: 01/14/2024] [Indexed: 04/14/2024] Open
Abstract
This study presents the synthesis of four series of novel hybrid chalcones (20,21)a-g and (23,24)a-g and six series of 1,3,5-triazine-based pyrimido[4,5-b][1,4]diazepines (28-33)a-g and the evaluation of their anticancer, antibacterial, antifungal, and cytotoxic properties. Chalcones 20b,d, 21a,b,d, 23a,d-g, 24a-g and the pyrimido[4,5-b][1,4]diazepines 29e,g, 30g, 31a,b,e-g, 33a,b,e-g exhibited outstanding anticancer activity against a panel of 60 cancer cell lines with GI50 values between 0.01 and 100 μM and LC50 values in the range of 4.09 μM to >100 μM, several of such derivatives showing higher activity than the standard drug 5-fluorouracil (5-FU). On the other hand, among the synthesized compounds, the best antibacterial properties against N. gonorrhoeae, S. aureus (ATCC 43300), and M. tuberculosis were exhibited by the pyrimido[4,5-b][1,4]diazepines (MICs: 0.25-62.5 µg/mL). The antifungal activity studies showed that triazinylamino-chalcone 29e and triazinyloxy-chalcone 31g were the most active compounds against T. rubrum and T. mentagrophytes and A. fumigatus, respectively (MICs = 62.5 μg/mL). Hemolytic activity studies and in silico toxicity analysis demonstrated that most of the compounds are safe.
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Affiliation(s)
- Leydi M. Moreno
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, Cali 760042, Colombia; (J.Q.); (R.A.)
| | - Jairo Quiroga
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, Cali 760042, Colombia; (J.Q.); (R.A.)
| | - Rodrigo Abonia
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, Cali 760042, Colombia; (J.Q.); (R.A.)
| | - María del P. Crespo
- Grupo de Biotecnología e Infecciones Bacterianas, Departamento de Microbiología, Universidad del Valle, Cali 760042, Colombia;
- Grupo de Microbiología y Enfermedades Infecciosas, Departamento de Microbiología, Universidad del Valle, Cali 760042, Colombia; (M.B.); (M.E.B.)
| | - Carlos Aranaga
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Cali 760035, Colombia;
- Grupo de Investigación Traslacional en Enfermedades Infecciosas, Escuela de Biomedicina, Universidad de Córdoba, 14014 Córdoba, Spain
| | - Luis Martínez-Martínez
- Unidad de Microbiología Clínica, Hospital Universitario Reina Sofía, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Departamento de Química Agrícola, Edafología y Microbiología, Universidad de Córdoba, 14004 Córdoba, Spain;
| | - Maximiliano Sortino
- Área de Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina;
| | - Mauricio Barreto
- Grupo de Microbiología y Enfermedades Infecciosas, Departamento de Microbiología, Universidad del Valle, Cali 760042, Colombia; (M.B.); (M.E.B.)
| | - María E. Burbano
- Grupo de Microbiología y Enfermedades Infecciosas, Departamento de Microbiología, Universidad del Valle, Cali 760042, Colombia; (M.B.); (M.E.B.)
| | - Braulio Insuasty
- Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad del Valle, Cali 760042, Colombia; (J.Q.); (R.A.)
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2
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Espinosa-Saez R, Robledo SM, Pineda T, Murillo J, Zúñiga C, Yañez O, Cantero-López P, Saez-Vega A, Guzmán-Teran C. Screening of the antileishmanial and antiplasmodial potential of synthetic 2-arylquinoline analogs. Sci Rep 2023; 13:17523. [PMID: 37845281 PMCID: PMC10579228 DOI: 10.1038/s41598-023-43805-4] [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: 04/06/2023] [Accepted: 09/28/2023] [Indexed: 10/18/2023] Open
Abstract
In this study, six analogs of 2-arylquinoline were synthesized and evaluated for their in vitro and in vivo antiplasmodial and leishmanicidal activity. At a later stage, hemolytic activity and druggability were tested in vitro and in silico, respectively, observing as a result: firstly, compounds showed half-maximal effective concentration (EC50) values between 3.6 and 19.3 µM. Likewise, a treatment using the compounds 4a-f caused improvement in most of the treated hamsters and cured some of them. Regarding the antiplasmodial activity, the compounds showed moderate to high activity, although they did not show hemolytic activity. Furthermore, 4e and 4f compounds were not able to control P. berghei infection when administered to animal models. Molecular dynamic simulations, molecular docking and ligand binding affinity indicate good characteristics of the studied compounds, which are expected to be active. And lastly, the compounds are absorbable at the hematoencephalic barrier but not in the gastrointestinal tract. In summary, ADMET properties suggest that these molecules may be used as a safe treatment against Leishmania.
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Affiliation(s)
- Roger Espinosa-Saez
- Grupo de Investigación, Evaluación y Desarrollo de Fármacos y Afines-IDEFARMA, Departamento de Regencia y Farmacia, Universidad de Córdoba, Montería, Córdoba, Colombia
| | - Sara M Robledo
- Programa de Estudio y Control de Enfermedades Tropicales-PECET, Facultad de Medicina, Universidad de Antioquia, Medellín, Antioquia, Colombia
| | - Tatiana Pineda
- Corporación de Innovación Para el Desarrollo de Productos, Medellín, Antioquia, Colombia
| | - Javier Murillo
- Corporación de Innovación Para el Desarrollo de Productos, Medellín, Antioquia, Colombia
| | - César Zúñiga
- Instituto de Ciencias Naturales, Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Sede Providencia, Santiago, Chile
- Facultad de Ingeniería y Negocios, Universidad de las Américas, Santiago, Chile
| | - Osvaldo Yañez
- Núcleo de Investigación en Data Science, Facultad de Ingeniería y Negocios, Universidad de las Américas, Santiago, Chile
| | - Plinio Cantero-López
- Departamento de Ciencias, Facultad de Ciencias Exactas, Químicas, Universidad Andres Bello, Viña del Mar, Chile
- Center of Applied Nanoscience (CANS), Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile
- Relativistic Molecular Physics Group (ReMoPh), PhD Program in Molecular Physical Chemistry, Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile
| | - Alex Saez-Vega
- Escuela de Ciencias Aplicadas e Ingenierías, Universidad EAFIT, Medellín, Colombia
| | - Camilo Guzmán-Teran
- Grupo de Investigación, Evaluación y Desarrollo de Fármacos y Afines-IDEFARMA, Departamento de Regencia y Farmacia, Universidad de Córdoba, Montería, Córdoba, Colombia.
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3
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Mohammed HHH, Ali DME, Badr M, Habib AGK, Mahmoud AM, Farhan SM, Gany SSHAE, Mohamad SA, Hayallah AM, Abbas SH, Abuo-Rahma GEDA. Synthesis and molecular docking of new N4-piperazinyl ciprofloxacin hybrids as antimicrobial DNA gyrase inhibitors. Mol Divers 2023; 27:1751-1765. [PMID: 36152132 PMCID: PMC10415461 DOI: 10.1007/s11030-022-10528-z] [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: 05/26/2022] [Accepted: 09/11/2022] [Indexed: 11/24/2022]
Abstract
A series of N-4 piperazinyl ciprofloxacin derivatives as urea-tethered ciprofloxacin-chalcone hybrids 2a-j and thioacetyl-linked ciprofloxacin-pyrimidine hybrids 5a-i were synthesized. The target compounds were investigated for their antibacterial activity against S. aureus, P. aeruginosa, E. coli, and C. albicans strains, respectively. Ciprofloxacin derivatives 2a-j and 5a-i revealed broad antibacterial activity against either Gram positive or Gram negative strains, with MIC range of 0.06-42.23 µg/mL compared to ciprofloxacin with an MIC range of 0.15-3.25 µg/mL. Among the tested compounds, hybrids 2b, 2c, 5a, 5b, 5h, and 5i exhibited remarkable antibacterial activity with MIC range of 0.06-1.53 µg/mL against the tested bacterial strains. On the other hand, compounds 2c, 2e, 5c, and 5e showed comparable antifungal activity to ketoconazole against candida albicans with MIC range of 2.03-3.89 µg/mL and 2.6 µg/mL, respectively. Further investigations showed that some ciprofloxacin hybrids have inhibitory activity against DNA gyrase as potential molecular target compared to ciprofloxacin with IC50 range of 0.231 ± 0.01-7.592 ± 0.40 µM and 0.323 ± 0.02 µM, respectively. Docking studies of compounds 2b, 2c, 5b, 5c, 5e, 5h, and 5i on the active site of DNA gyrase (PDB: 2XCT) confirmed their ability to form stable complex with the target enzyme like that of ciprofloxacin.
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Affiliation(s)
- Hamada H H Mohammed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt.
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt.
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, New Minia City, 61768, Egypt.
| | | | - Mohamed Badr
- Department of Biochemistry, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | - Ahmed G K Habib
- Department of Biotechnology and Life Sciences, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Abobakr Mohamed Mahmoud
- Department of Microbiology and Immunology, Faculty of Pharmacy, Deraya University, New Minia City, 61768, Egypt
| | - Sarah M Farhan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Deraya University, New Minia City, 61768, Egypt
| | | | - Soad A Mohamad
- Department of Pharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, Deraya University, New Minia, Minya, 61768, Egypt
| | - Alaa M Hayallah
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, El Fateh, 71526, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Sphinx University, New Assiut, Egypt
| | - Samar H Abbas
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
| | - Gamal El-Din A Abuo-Rahma
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt.
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, New Minia City, 61768, Egypt.
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Ravindar L, Hasbullah SA, Rakesh KP, Hassan NI. Pyrazole and pyrazoline derivatives as antimalarial agents: A key review. Eur J Pharm Sci 2023; 183:106365. [PMID: 36563914 DOI: 10.1016/j.ejps.2022.106365] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/28/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Malaria poses a severe public health risk and a significant economic burden in disease-endemic countries. One of the most severe issues in malaria control is the development of drug resistance in malaria parasites. The standard treatment for malaria is artemisinin-combination therapy (ACT). Nevertheless, the Plasmodium parasite's extensive resistance to prior drugs and reduced ACT efficiency necessitates novel drug discovery. The progress in discovering novel, affordable, and effective antimalarial agents is significant in combating drug resistance, and the hybrid drug concept can be used to covalently link two or more active pharmacophores that may act on multiple targets. Pyrazole and pyrazoline derivatives are considered pharmacologically necessary active heterocyclic scaffolds that possess almost all types of pharmacological activities. This review summarized recent progress in antimalarial activities of synthesized pyrazole and pyrazoline derivatives. The studies published since 2000 are included in this systematic review. This review is anticipated to be beneficial for future study and new ideas in searching for rational development strategies for more effective pyrazole and pyrazoline derivatives as antimalarial drugs.
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Affiliation(s)
- Lekkala Ravindar
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600 Selangor, Malaysia
| | - Siti Aishah Hasbullah
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600 Selangor, Malaysia
| | - K P Rakesh
- Department of Radiology, Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Nurul Izzaty Hassan
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600 Selangor, Malaysia.
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5
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Kumar A, Jain S, Chauhan S, Aggarwal S, Saini D. Novel hybrids of quinoline with pyrazolylchalcones as potential antimalarial agents: Synthesis, biological evaluation, molecular docking and ADME prediction. Chem Biol Interact 2023; 373:110379. [PMID: 36738914 DOI: 10.1016/j.cbi.2023.110379] [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: 08/23/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
A novel series of pyrazolyl chalcones containing quinoline scaffold, 5 a-v has been synthesized by Claisen Schimdt condensation of aromatic acetophenone with 1-(4-methylquinolin-2-yl)-3-aryl-1H-pyrazole-4-carbaldehyde in quantitative yield. The compounds were characterized using IR, NMR, MS and elemental analysis. An E-configuration about CC ethylenic bond was determined using 1H NMR spectroscopy. These compounds exhibited significant antimalarial potential against CQ-sensitive and CQ-resistant strain of Plasmodium falciparum. Structure activity relationship has also been established based on outcomes of in vitro schizont inhibition assay. Compound 5u, (Z)-3-(1-(4-methylquinolin-2-yl)-3-p-tolyl-1H-pyrazol-4-yl)-1-p-tolylprop-2-en-1-one, was found to be the most potent among the series of synthetic analogues. In vivo, it demonstrated significant parasitemia suppression of 78.01% at a dose of 200 mg/kg against P. berghei in infected mice without any mortality in 7 days. In silico molecular docking study revealed that this compound 5u bound to the active site of cysteine protease falcipain-2 enzyme. Furthermore, in silico ADME studies, were also performed and physicochemical qualifications of the title compounds were determined. The biological outcomes of newer heterocyclic compounds may pave the new paths for researchers in development of potential antimalarial agents.
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Affiliation(s)
- Ajay Kumar
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra, 136119, India
| | - Sandeep Jain
- Drug Discovery and Research Laboratory, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, India
| | - Shilpi Chauhan
- Lloyd Institute of Management and Technology, Plot No. 11, Knowledge Park-II, Greater, Noida, 201306, India
| | | | - Deepika Saini
- Drug Discovery and Research Laboratory, Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, India; Lloyd Institute of Management and Technology, Plot No. 11, Knowledge Park-II, Greater, Noida, 201306, India.
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6
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Dadi V, Malla RR, Siragam S. Natural and Synthetic Chalcones: Potential Impact on Breast Cancer. Crit Rev Oncog 2023; 28:27-40. [PMID: 38050979 DOI: 10.1615/critrevoncog.2023049659] [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: 12/07/2023]
Abstract
Chalcones are small molecules, naturally found in fruits and vegetables, and exhibit diverse pharmacological activities. They also possess anticancer activity against different tumors. They can be converted into numerous derivatives by modifying hydrogen moieties, enabling the exploration of their diverse anticancer potentials. The main aims are to provide valuable insights into the recent progress made in utilizing chalcones and their derivatives as agents against breast cancer while delivering their underlying molecular mechanisms of action. This review presents anticancer molecular mechanisms and signaling pathways modulated by chalcones. Furthermore, it helps in the understating of the precise mechanisms of action and specific molecular targets of chalcones and their synthetic derivatives for breast cancer treatment.
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Affiliation(s)
- Vasudha Dadi
- Department of Pharmaceutical Chemistry, Vignan Institute of Pharmaceutical Technology, Visakhapatnam 530049, India
| | - Rama Rao Malla
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, School of Science, Gandhi Institute of Technology and Management (GITAM) (Deemed to be University), Visakhapatnam-530045, Andhra Pradesh, India; Department of Biochemistry and Bioinformatics, School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, Andhra Pradesh, India
| | - Satyalakshmi Siragam
- Department of Pharmaceutics, Vignan Institute of Pharmaceutical Technology, Visakhapatnam 530049, India
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7
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Bekhit AA, Lodebo ET, Hymete A, Ragab HM, Bekhit SA, Amagase K, Batubara A, Abourehab MAS, Bekhit AEDA, Ibrahim TM. New pyrazolylpyrazoline derivatives as dual acting antimalarial-antileishamanial agents: synthesis, biological evaluation and molecular modelling simulations. J Enzyme Inhib Med Chem 2022; 37:2320-2333. [PMID: 36036155 PMCID: PMC9427035 DOI: 10.1080/14756366.2022.2117316] [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] [Indexed: 11/21/2022] Open
Abstract
Promising inhibitory activities of the parasite multiplication were obtained upon evaluation of in vivo antimalarial activities of new pyrazolylpyrazoline derivatives against Plasmodium berghei infected mice. Further evaluation of 5b and 6a against chloroquine-resistant strain (RKL9) of P. falciparum showed higher potency than chloroquine. In vitro antileishmanial activity testing against Leishmania aethiopica promastigote and amastigote forms indicated that 5b, 6a and 7b possessed promising activity compared to miltefosine and amphotericin B deoxycholate. Moreover, antileishmanial activity reversal of the active compounds via folic and folinic acids showed comparable results to the positive control trimethoprim, indicating an antifolate mechanism via targeting leishmanial DHFR and PTR1. The compounds were non-toxic at 125, 250 and 500 mg/kg. In addition, docking of the most active compound against putative malarial target Pf-DHFR-TS and leishmanial PTR1 rationalised the observed activities. Molecular dynamics simulations confirmed a stable and high potential binding of 7a against leishmanial PTR1.
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Affiliation(s)
- Adnan A Bekhit
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.,Pharmacy Program, Allied Health Department, College of Health and Sport Sciences, University of Bahrain, Zallaq, Kingdom of Bahrain.,Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, Addis Ababa University, Addis Ababa, Ethiopia
| | - Eskedar T Lodebo
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, Addis Ababa University, Addis Ababa, Ethiopia.,Department of Chemistry, Kotebe Metropolitan University, Addis Ababa, Ethiopia
| | - Ariaya Hymete
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, Addis Ababa University, Addis Ababa, Ethiopia
| | - Hanan M Ragab
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Salma A Bekhit
- High Institute of Public Health, Alexandria University, Alexandria, Egypt
| | - Kikuko Amagase
- Laboratory of Pharmacology & Pharmacotherapeutics, College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu, Japan
| | - Afnan Batubara
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qurra University, Makkah, Saudi Arabia
| | - Mohammed A S Abourehab
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia, Egypt
| | | | - Tamer M Ibrahim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafr El-Sheikh, Egypt
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8
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Evaluation of efficacy of new chalcone-based endodontic irrigant against dual biofilm Enterococcus faecalis and Candida albicans: a study in vitro. Odontology 2022:10.1007/s10266-022-00764-y. [DOI: 10.1007/s10266-022-00764-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022]
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9
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Rajendran G, Bhanu D, Aruchamy B, Ramani P, Pandurangan N, Bobba KN, Oh EJ, Chung HY, Gangadaran P, Ahn BC. Chalcone: A Promising Bioactive Scaffold in Medicinal Chemistry. Pharmaceuticals (Basel) 2022; 15:ph15101250. [PMID: 36297362 PMCID: PMC9607481 DOI: 10.3390/ph15101250] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/26/2022] [Accepted: 10/01/2022] [Indexed: 11/16/2022] Open
Abstract
Chalcones are a class of privileged scaffolds with high medicinal significance due to the presence of an α,β-unsaturated ketone functionality. Numerous functional modifications of chalcones have been reported, along with their pharmacological behavior. The present review aims to summarize the structures from natural sources, synthesis methods, biological characteristics against infectious and non-infectious diseases, and uses of chalcones over the past decade, and their structure–activity relationship studies are detailed in depth. This critical review provides guidelines for the future design and synthesis of various chalcones. In addition, this could be highly supportive for medicinal chemists to develop more promising candidates for various infectious and non-infectious diseases.
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Affiliation(s)
- Gayathri Rajendran
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Deepu Bhanu
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Baladhandapani Aruchamy
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Prasanna Ramani
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Correspondence: (P.R.); (B.-C.A.)
| | - Nanjan Pandurangan
- Department of Sciences, Amrita School of Arts and Sciences, Mysuru Campus, Amrita Vishwa Vidyapeetham, Mysuru 570026, India
| | - Kondapa Naidu Bobba
- Department of Radiology and Biomedical Imaging, University of California (San Francisco), San Francisco, CA 94143, USA
| | - Eun Jung Oh
- Department of Plastic and Reconstructive Surgery, CMRI, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
| | - Ho Yun Chung
- Department of Plastic and Reconstructive Surgery, CMRI, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Prakash Gangadaran
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
| | - Byeong-Cheol Ahn
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
- Correspondence: (P.R.); (B.-C.A.)
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10
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Elkanzi NAA, Hrichi H, Alolayan RA, Derafa W, Zahou FM, Bakr RB. Synthesis of Chalcones Derivatives and Their Biological Activities: A Review. ACS OMEGA 2022; 7:27769-27786. [PMID: 35990442 PMCID: PMC9386807 DOI: 10.1021/acsomega.2c01779] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 07/21/2022] [Indexed: 05/27/2023]
Abstract
Chalcone derivatives are considered valuable species because they possess a ketoethylenic moiety, CO-CH=CH-. Due to the presence of a reactive α,β-unsaturated carbonyl group, chalcones and their derivatives possess a wide spectrum of antiproliferative, antifungal, antibacterial, antiviral, antileishmanial, and antimalarial pharmacological properties. Recent developments in heterocyclic chemistry have led to the synthesis of chalcone derivatives, which had been biologically investigated toward certain disease targets. The major aspect of this review is to present the most recent synthesis of chalcones bearing N, O, and/or S heterocycles, revealing their biological potential during the past decade (2010-2021). Based on a review of the literature, many chalcone-heterocycle hybrids appear to exhibit promise as future drug candidates owing to their similar or superior activities compared to those of the standards. Thus, this review may prove to be beneficial for the development and design of new potent therapeutic drugs based on previously developed strategies.
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Affiliation(s)
- Nadia A. A. Elkanzi
- Chemistry
Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Hajer Hrichi
- Chemistry
Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Ruba A. Alolayan
- Chemistry
Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Wassila Derafa
- Chemistry
Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Fatin M. Zahou
- Biology
Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Rania B. Bakr
- Department
of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
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11
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Yadav M, Lal K, Kumar A, Kumar A, Kumar D. Indole-chalcone linked 1,2,3-triazole hybrids: Facile synthesis, antimicrobial evaluation and docking studies as potential antimicrobial agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Becerra D, Abonia R, Castillo JC. Recent Applications of the Multicomponent Synthesis for Bioactive Pyrazole Derivatives. Molecules 2022; 27:molecules27154723. [PMID: 35897899 PMCID: PMC9331265 DOI: 10.3390/molecules27154723] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 12/04/2022] Open
Abstract
Pyrazole and its derivatives are considered a privileged N-heterocycle with immense therapeutic potential. Over the last few decades, the pot, atom, and step economy (PASE) synthesis of pyrazole derivatives by multicomponent reactions (MCRs) has gained increasing popularity in pharmaceutical and medicinal chemistry. The present review summarizes the recent developments of multicomponent reactions for the synthesis of biologically active molecules containing the pyrazole moiety. Particularly, it covers the articles published from 2015 to date related to antibacterial, anticancer, antifungal, antioxidant, α-glucosidase and α-amylase inhibitory, anti-inflammatory, antimycobacterial, antimalarial, and miscellaneous activities of pyrazole derivatives obtained exclusively via an MCR. The reported analytical and activity data, plausible synthetic mechanisms, and molecular docking simulations are organized in concise tables, schemes, and figures to facilitate comparison and underscore the key points of this review. We hope that this review will be helpful in the quest for developing more biologically active molecules and marketed drugs containing the pyrazole moiety.
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Affiliation(s)
- Diana Becerra
- Escuela de Ciencias Química, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia, Avenida Central del Norte, Tunja 150003, Colombia;
| | - Rodrigo Abonia
- Research Group of Heterocyclic Compounds, Department of Chemistry, Universidad del Valle, A.A. 25360, Cali 76001, Colombia;
| | - Juan-Carlos Castillo
- Escuela de Ciencias Química, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia, Avenida Central del Norte, Tunja 150003, Colombia;
- Correspondence: ; Tel.: +57-8-740-5626 (ext. 2425)
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13
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Batista AS, Oliveira SDS, Pomel S, Commere PH, Mazan V, Lee M, Loiseau PM, Rossi-Bergmann B, Prina E, Duval R. Targeting chalcone binding sites in living Leishmania using a reversible fluorogenic benzochalcone probe. Biomed Pharmacother 2022; 149:112784. [PMID: 35299122 DOI: 10.1016/j.biopha.2022.112784] [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: 02/14/2022] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 11/17/2022] Open
Abstract
Chalcones (1,3-diphenyl-2-propen-1-ones) either natural or synthetic have a plethora of biological properties including antileishmanial activities, but their development as drugs is hampered by their largely unknown mechanisms of action. We demonstrate herein that our previously described benzochalcone fluorogenic probe (HAB) could be imaged by fluorescence microscopy in live Leishmania amazonensis promastigotes where it targeted the parasite acidocalcisomes, lysosomes and the mitochondrion. As in the live zebrafish model, HAB formed yellow-emitting fluorescent complexes when associated with biological targets in Leishmania. Further, we used HAB as a reversible probe to study the binding of a portfolio of diverse chalcones and analogues in live promastigotes, using a combination of competitive flow cytometry analysis and cell microscopy. This pharmacological evaluation suggested that the binding of HAB in promastigotes was representative of chalcone pharmacology in Leishmania, with certain exogenous chalcones exhibiting competitive inhibition (ca. 20-30%) towards HAB whereas non-chalconic inhibitors showed weak capacity (ca. 3-5%) to block the probe intracellular binding. However, this methodology was restricted by the strong toxicity of several competing chalcones at high concentration, in conjunction with the limited sensitivity of the HAB fluorophore. This advocates for further optimization of this undirect target detection strategy using pharmacophore-derived reversible fluorescent probes.
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Affiliation(s)
- Ariane S Batista
- Nanotechnology Engineering Program, Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia - COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil
| | | | - Sébastien Pomel
- Université Paris-Saclay, CNRS, BioCIS, 92296 Châtenay-Malabry, France
| | | | - Valérie Mazan
- Université de Strasbourg, Université de Haute-Alsace, CNRS, LIMA, UMR 7042, ECPM, 25 Rue Becquerel, 67000 Strasbourg, France
| | - Moses Lee
- Department of Chemistry, Georgia State University, Atlanta 30303, USA
| | | | - Bartira Rossi-Bergmann
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal de Rio de Janeiro, 21941-902 Rio de Janeiro, Brazil
| | - Eric Prina
- Institut Pasteur, Unité de Parasitologie Moléculaire et Signalisation, INSERM U1201, Paris, France
| | - Romain Duval
- Université de Paris, IRD, MERIT, F-75006 Paris, France.
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14
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The effect of molecular planarity and resonant effects on supramolecular structures of N-(5-pyrazolyl)imines by X-ray crystallographic analysis. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Synthesis, Molecular Docking, and Antimalarial Activity of Hybrid 4-Aminoquinoline-pyrano[2,3-c]pyrazole Derivatives. Pharmaceuticals (Basel) 2021; 14:ph14111174. [PMID: 34832956 PMCID: PMC8622706 DOI: 10.3390/ph14111174] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 11/24/2022] Open
Abstract
Widespread resistance of Plasmodium falciparum to current artemisinin-based combination therapies necessitate the discovery of new medicines. Pharmacophoric hybridization has become an alternative for drug resistance that lowers the risk of drug–drug adverse interactions. In this study, we synthesized a new series of hybrids by covalently linking the scaffolds of pyrano[2,3-c]pyrazole with 4-aminoquinoline via an ethyl linker. All synthesized hybrid molecules were evaluated through in vitro screenings against chloroquine-resistant (K1) and -sensitive (3D7) P. falciparum strains, respectively. Data from in vitro assessments showed that hybrid 4b displayed significant antiplasmodial activities against the 3D7 strain (EC50 = 0.0130 ± 0.0002 μM) and the K1 strain (EC50 = 0.02 ± 0.01 μM), with low cytotoxic effect against Vero mammalian cells. The high selectivity index value on the 3D7 strain (SI > 1000) and the K1 strain (SI > 800) and the low resistance index value from compound 4b suggested that the pharmacological effects of this compound were due to selective inhibition on the 3D7 and K1 strains. Molecular docking analysis also showed that 4b recorded the highest binding energy on P. falciparum lactate dehydrogenase. Thus, P. falciparum lactate dehydrogenase is considered a potential molecular target for the synthesized compound.
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16
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Alizadeh A, Bagherinejad A. Synthesis of tetracyclic pyrido-fused dibenzodiazepines via a catalyst-free cascade reaction. Mol Divers 2021; 25:2237-2246. [PMID: 32537708 DOI: 10.1007/s11030-020-10114-1] [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: 05/01/2020] [Accepted: 06/06/2020] [Indexed: 11/25/2022]
Abstract
An efficient, eco-friendly protocol has been described for the chemoselective synthesis of tetracyclic pyrido-fused dibenzodiazepines derivatives via catalyst-free, three-component reaction of dimedone, 1,2-diamines, 3-formylchromones, and malononitrile. The significant advantages of this cascade approach are to create two new rings and four new σ bonds containing three C-N and one C-C bond, as well as the breakdown of a C-O bond.
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Affiliation(s)
- Abdolali Alizadeh
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
| | - Akram Bagherinejad
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
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17
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Synthesis, characterization, docking study and biological evaluation of new chalcone, pyrazoline, and pyrimidine derivatives as potent antimalarial compounds. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103304] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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18
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Ambient-Temperature Synthesis of (E)-N-(3-(tert-Butyl)-1-methyl-1H-pyrazol-5-yl)-1-(pyridin-2-yl)methanimine. MOLBANK 2021. [DOI: 10.3390/m1250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We report the ambient-temperature synthesis of novel (E)-N-(3-(tert-butyl)-1-methyl-1H-pyrazol-5-yl)-1-(pyridin-2-yl)methanamine 3 in 81% yield by a condensation reaction between 3-(tert-butyl)-1-methyl-1H-pyrazol-5-amine 1 and 2-pyridinecarboxaldehyde 2 in methanol using magnesium sulfate as a drying agent. The N-pyrazolyl imine 3 was full characterized by IR, 1D, and 2D NMR spectroscopy, mass spectrometry, and elemental analysis.
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19
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Espinosa R, Robledo S, Guzmán C, Arbeláez N, Yepes L, Santafé G, Sáez A. Synthesis and evaluation of the in vitro and in vivo antitrypanosomal activity of 2-styrylquinolines. Heliyon 2021; 7:e07024. [PMID: 34036197 PMCID: PMC8134988 DOI: 10.1016/j.heliyon.2021.e07024] [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: 02/19/2021] [Revised: 04/05/2021] [Accepted: 05/06/2021] [Indexed: 11/14/2022] Open
Abstract
In this study, we report the synthesis and evaluation of in vitro and in vivo antitrypanosomal activity of styrylquinoline-like compounds (SQ) 3a-h. Synthesis was carried out by using quinaldine and 8- hydroxyquinaldine with a variety of aromatic aldehydes. The structure of SQs was corroborated by one and two-dimension NMR spectroscopy. In vitro antitrypanosomal activity on T. cruzi Talahuen strain was evaluated using β-galactosidase enzymatic method; cytotoxicity on U-937 cells was assessed by using MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] method. On the other hand, in vivo therapeutical response to 3a-f compounds was evaluated in BALB/c mice (Mus musculus) experimentally infected with T. cruzi blood trypomastigotes and then orally administered with 100 mg/kg weight day for 20 days. All of the compounds showed in vitro activity with EC50 values ranging between 4.6 ± 0.1 μg/mL (14.4 μM) and 36.6 ± 6.1 μg/mL (91 μM). Furthermore, treatment with 3a-f compounds for 20 days resulted in improvement in all of the mice, with a 83–96% decrease in parasitic load at day 90 post-treatment. Treatment with benznidazol (BZ) managed to cure 100% of the mice at the end of treatment. None of the treatments affected the weight of the animals or alanine aminotransferase (ALT), blood urea nitrogen (BUN) and creatinine levels in serum. These results suggest a therapeutic potential of 3a-f compounds as treatment for the infection.
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Affiliation(s)
- Roger Espinosa
- IDEFARMA - Department of Regency and Pharmacy, University of Córdoba, Montería, Colombia
| | - Sara Robledo
- PECET - Faculty of Medicine, University of Antioquia, Medellin, Colombia
| | - Camilo Guzmán
- IDEFARMA - Department of Regency and Pharmacy, University of Córdoba, Montería, Colombia
| | - Natalia Arbeláez
- PECET - Faculty of Medicine, University of Antioquia, Medellin, Colombia
| | - Lina Yepes
- PECET - Faculty of Medicine, University of Antioquia, Medellin, Colombia
| | - Gílmar Santafé
- Department of Chemistry, University of Córdoba, Montería, Colombia
| | - Alex Sáez
- Department of Biological Sciences, EAFIT University, Medellin, Colombia
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20
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Lozynskyi A, Holota S, Yushyn I, Sabadakh O, Karpenko O, Novikov V, Lesyk R. Synthesis and Biological Activity Evaluation of Polyfunctionalized Anthraquinonehydrazones. LETT DRUG DES DISCOV 2021. [DOI: 10.2174/1570180817999200802032844] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background :
Anthraquinone derivatives, frequently occurring motifs in many various
natural compounds, have attracted a great deal of interest as compounds with a wide spectrum of
biological activities.
Introduction:
The hybrid pharmacophore approach has become an object of considerable interest
due to the incorporation of a five- or six-membered heterocyclic rings in the structure of various
natural compounds, especially anthraquinone derivatives.
Methods:
A series of polyfunctionalized anthraquinonehydrazones have been synthesized via the
azo-coupling reaction between anthraquinone-based triazenes and methylene active compounds. The
structures of synthesized compounds were confirmed by spectral data. Some of the synthesized
compounds were screened for their in vitro anticancer activity according to US NCI protocols. The
screening of antimicrobial and antifungal activities against Candida albicans and Lactobacillus sp.
was carried out. The synthesized compounds were evaluated for their antioxidant (DPPH free radical
scavenging assay) and herbicidal activity.
Results:
The synthesized 1-[N'-(5-oxo-2-thioxoimidazolidin-4-ylidene)-hydrazino]-anthraquinone
1.5 displayed a high level of antimitotic activity against tested human tumor cells with mean
GI50/TGI values 4.06/78.52μM. The screening of antimicrobial and antifungal activities led to the
identification of 1.8 and 1.9 with a moderate effect on Candida albicans and Lactobacillus sp. Antioxidant
activity evaluation allowed the identification of 1-[N'-(3-methyl-5-oxo-1-phenyl-1,5-
dihydropyrazol-4-ylidene)-hydrazino]-anthraquinone 1.8 with an IC50 value of 3.715 mM. The herbicidal
activity screening led to compound identification 1.8 with growth inhibition of Agrostis stolonifera
at 25 %.
Conclusion:
The obtained anthraquinonehydrazones constitute an interesting template for the design
of new synthetic agents with polypharmacological activities.
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Affiliation(s)
- Andrii Lozynskyi
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
| | - Serhii Holota
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
| | - Ihor Yushyn
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
| | - Oksana Sabadakh
- Department of Environmental Chemistry and Chemistry Education, Vasyl Stefanyk Precarpathian National University, Halytska 201, Ivano-Frankivsk 76000, Ukraine
| | | | - Volodymyr Novikov
- Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology, Lviv Polytechnic National University, Bandery 12, Lviv 79013, Ukraine
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
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21
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Yang GF, Li GX, Huang J, Fu DQ, Nie XK, Cui X, Zhao JZ, Tang Z. Regioselective, Diastereoselective, and Enantioselective One-Pot Tandem Reaction Based on an in Situ Formed Reductant: Preparation of 2,3-Disubstituted 1,5-Benzodiazepine. J Org Chem 2021; 86:5110-5119. [DOI: 10.1021/acs.joc.0c03064] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gao-feng Yang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan, 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guang-xun Li
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan, 610041, China
| | - Jin Huang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan, 610041, China
| | - Ding-qiang Fu
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan, 610041, China
| | - Xiao-kang Nie
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan, 610041, China
| | - Xin Cui
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan, 610041, China
| | - Jin-zhong Zhao
- College of Art and Sciences, Shanxi Agricultural University, Taigu, Shanxi, 030800, China
| | - Zhuo Tang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan, 610041, China
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22
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Abstract
We reported an efficient one-pot two-step synthesis of 3-(tert-butyl)-N-(4-methoxybenzyl)-1-methyl-1H-pyrazol-5-amine 3 in good yield by a solvent-free condensation/reduction reaction sequence starting from 3-(tert-butyl)-1-methyl-1H-pyrazol-5-amine 1 and p-methoxybenzaldehyde 2. The one-pot reductive amination proceeded by the formation in situ of the N-(5-pyrazolyl)imine 4 as key synthetic intermediate of other valuable pyrazole derivatives. This methodology is distinguished by its operational easiness, short reaction time, isolation and purification of the aldimine intermediate is not required. The structure of the synthesized N-heterocyclic amine 3 was fully characterized by FTIR-ATR, 1D and 2D NMR experiments, EIMS, and elemental analysis.
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23
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Pyrazol(in)e derivatives of curcumin analogs as a new class of anti- Trypanosoma cruzi agents. Future Med Chem 2021; 13:701-714. [PMID: 33648346 DOI: 10.4155/fmc-2020-0349] [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] [Indexed: 12/26/2022] Open
Abstract
Aim: We report the synthesis and biological evaluation of a small library of 15 functionalized 3-styryl-2-pyrazolines and pyrazoles, derived from curcuminoids, as trypanosomicidal agents. Methods & results: The compounds were prepared via a cyclization reaction between the corresponding curcuminoids and the appropriate hydrazines. All of the derivatives synthesized were investigated for their trypanosomicidal activities. Compounds 4a and 4e showed significant activity against epimastigotes of Trypanosoma cruzi, with IC50 values of 5.0 and 4.2 μM, respectively, accompanied by no toxicity to noncancerous mammalian cells. Compound 6b was found to effectively inhibit T. cruzi triosephosphate isomerase. Conclusion: The up to 16-fold higher potency of these derivatives compared with their curcuminoid precursors makes them a promising new family of T. cruzi inhibitors.
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24
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Majeed K, Wang L, Liu B, Guo Z, Zhou F, Zhang Q. Metal-Free Tandem Approach for Triazole-Fused Diazepinone Scaffolds via [3 + 2]Cycloaddition/C–N Coupling Reaction. J Org Chem 2020; 86:207-222. [DOI: 10.1021/acs.joc.0c02022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kashif Majeed
- Xi’an Key Laboratory of Functional Organic Porous Materials, Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Lingna Wang
- Xi’an Key Laboratory of Functional Organic Porous Materials, Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Bangjie Liu
- Xi’an Key Laboratory of Functional Organic Porous Materials, Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Zijian Guo
- Xi’an Key Laboratory of Functional Organic Porous Materials, Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Fengtao Zhou
- Xi’an Key Laboratory of Functional Organic Porous Materials, Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Qiuyu Zhang
- Xi’an Key Laboratory of Functional Organic Porous Materials, Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
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25
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Ultrasounds-mediated 10-seconds synthesis of chalcones as potential farnesyltransferase inhibitors. Bioorg Med Chem Lett 2020; 30:127149. [PMID: 32247731 DOI: 10.1016/j.bmcl.2020.127149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/23/2020] [Accepted: 03/27/2020] [Indexed: 11/23/2022]
Abstract
A broad range of chalcones and derivatives were easily and rapidly synthesized, following Claisen-Schmidt condensation of (hetero)aryl ketones and (hetero)aryl aldehydes using a ultrasound probe. A comparison was made with classical magnetic stirring experiments, and an optimization study was realized, showing lithium hydroxide to be the best basic catalyst of the studied condensations. By-products of the reactions (β-hydroxy-ketone, diketones, and cyclohexanols) were also isolated. All compounds were evaluated in vitro for their ability to inhibit human farnesyltransferase, a protein implicated in cancer and rare diseases and on the NCI-60 cancer cell lines panel. Molecules showed inhibitory activity on the target protein and cytostatic effect on different cell lines with particular activity against MCF7, breast cancer cells.
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26
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Raj S, Sasidharan S, Balaji SN, Dubey VK, Saudagar P. Review on natural products as an alternative to contemporary anti-leishmanial therapeutics. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s42485-020-00035-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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27
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Pasricha S, Gahlot P. Synthetic Strategies and Biological Potential of Coumarin-Chalcone Hybrids: A New Dimension to Drug Design. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200219091830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Privileged scaffolds are ubiquitous as effective templates in drug discovery regime.
Natural and synthetically derived hybrid molecules are one such attractive scaffold
for therapeutic agent development due to their dual or multiple modes of action, minimum
or no side effects, favourable pharmacokinetics and other advantages. Coumarins and
chalcone are two important classes of natural products affording diverse pharmacological
activities which make them ideal templates for building coumarin-chalcone hybrids as effective
biological scaffold for drug discovery research. Provoked by the promising medicinal
application of hybrid molecules as well as those of coumarins and chalcones, the
medicinal chemists have used molecular hybridisation strategy to report dozens of coumarin-
chalcone hybrids with a wide spectrum of biological properties including anticancer,
antimicrobial, antimalarial, antioxidant, anti-tubercular and so on. The present review provides a systematic
summary on synthetic strategies, biological or chemical potential, SAR studies, some mechanisms of action
and some plausible molecular targets of synthetic coumarin-chalcone hybrids published from 2001 till
date. The review is expected to assist medicinal chemists in the effective and successful development of coumarin-
chalcone hybrid based drug discovery regime.
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Affiliation(s)
- Sharda Pasricha
- Department of Chemistry, Sri Venkateswara College, University of Delhi, P.O. Box: 110021, New Delhi, India
| | - Pragya Gahlot
- Department of Chemistry, Sri Venkateswara College, University of Delhi, P.O. Box: 110021, New Delhi, India
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28
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Qin HL, Zhang ZW, Lekkala R, Alsulami H, Rakesh K. Chalcone hybrids as privileged scaffolds in antimalarial drug discovery: A key review. Eur J Med Chem 2020; 193:112215. [DOI: 10.1016/j.ejmech.2020.112215] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/07/2020] [Accepted: 03/07/2020] [Indexed: 01/20/2023]
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29
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Synthesis of New Oxindoles and Determination of Their Antibacterial Properties. HETEROATOM CHEMISTRY 2020. [DOI: 10.1155/2020/8021920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A versatile method for the synthesis of new oxindoles was developed by the reaction between substituted isatins and 5-aminopyrazoles. The reaction was carried out at room temperature in ethanol using p-toluenesulfonic acid as the catalyst. The products were obtained with acceptable to excellent yields (44–96%). Structures of the new compounds were unambiguously established by spectroscopic and analytical techniques. The antibacterial activity was determined by microdilution assays. Compounds 3b, 3e, and 3g showed antistaphylococcal activity, particularly compound 3e displayed a potent activity against the vancomycin intermediate Staphylococcus aureus (VISA). Compounds 3i, 3j, and 3o inhibited Neisseria gonorrhoeae growth.
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30
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Mendes EP, Goulart CM, Chaves OA, Faiões VDS, Canto-Carvalho MM, Machado GC, Torres-Santos EC, Echevarria A. Evaluation of Novel Chalcone-Thiosemicarbazones Derivatives as Potential Anti- Leishmania amazonensis Agents and Its HSA Binding Studies. Biomolecules 2019; 9:biom9110643. [PMID: 31652866 PMCID: PMC6920794 DOI: 10.3390/biom9110643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 10/20/2019] [Accepted: 10/21/2019] [Indexed: 11/16/2022] Open
Abstract
A series of seven chalcone-thiosemicarbazones (5a-5g) were synthesized and evaluated as potential new drugs (anti-leishmanial effect). Although four of the chalcone-thiosemicarbazones are already known, none of them or any compound in this class has been previously investigated for their effects on parasites of the Leishmania genus. The compounds were prepared in satisfactory yields (40-75%) and these compounds were evaluated against promastigotes, axenic amastigotes and intracellular amastigotes of L. amazonensis after 48 h of culture. The half maximal inhibitory concentration (IC50) values of the intracellular amastigotes were determined to be in the range of 3.40 to 5.95 µM for all compounds assayed. The selectivity index showed value of 15.05 for 5a, whereas pentamidine (reference drug) was more toxic in our model (SI = 2.32). Furthermore, to understand the preliminary relationship between the anti-leishmanial activity of the chalcone-thiosemicarbazones, their electronic (σ), steric (MR) and lipophilicity (π) properties were correlated, and the results indicated that moieties with electronic withdrawing effects increase the anti-leishmanial activity. The preliminary pharmacokinetic evaluation of one of the most active compound (5e) was studied via interaction to human serum albumin (HSA) using multiple spectroscopic techniques combined with molecular docking. The results of antiparasitic effects against L. amazonensis revealed the chalcone-thiosemicarbazone class to be novel prototypes for drug development against leishmaniasis.
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Affiliation(s)
- Edinéia Pastro Mendes
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal Rural do Rio de Janeiro, Seropédica-Rio de Janeiro 23.890-000, Brazil.
- Programa de Pós-graduação em Ciência, Tecnologia e Inovação em Agropecuária, Universidade Federal Rural do Rio de Janeiro, Seropédica, Seropédica-Rio de Janeiro 23890-000, Brazil.
| | - Carla Marins Goulart
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal Rural do Rio de Janeiro, Seropédica-Rio de Janeiro 23.890-000, Brazil.
| | - Otávio Augusto Chaves
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal Rural do Rio de Janeiro, Seropédica-Rio de Janeiro 23.890-000, Brazil.
- Instituto SENAI de Inovação em Química Verde, Maracanã-Rio de Janeiro 20271-030, Brazil.
| | - Viviane Dos S Faiões
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro-Rio de Janeiro 21040-900, Brazil.
| | - Marilene M Canto-Carvalho
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro-Rio de Janeiro 21040-900, Brazil.
| | - Gerzia C Machado
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro-Rio de Janeiro 21040-900, Brazil.
| | - Eduardo Caio Torres-Santos
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro-Rio de Janeiro 21040-900, Brazil.
| | - Aurea Echevarria
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal Rural do Rio de Janeiro, Seropédica-Rio de Janeiro 23.890-000, Brazil.
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Thillainayagam M, Ramaiah S, Anbarasu A. Molecular docking and dynamics studies on novel benzene sulfonamide substituted pyrazole-pyrazoline analogues as potent inhibitors of Plasmodium falciparum Histo aspartic protease. J Biomol Struct Dyn 2019; 38:3235-3245. [PMID: 31411122 DOI: 10.1080/07391102.2019.1654923] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Malaria is the major health issue in African, Asian and Mediterranean regions of the world. Due to the emerging resistance by the parasites and mosquitoes for the current medications and insecticides, respectively, the malaria free human world can be attained only by the novel design and development of new anti-malarial drugs. Hence, we attempted to carry out in silico screening of benzene sulfonamide substituted pyrazole-pyrazoline series against Histo aspartic protease. Our results reveal that the 65% of the data set with the free binding energy in the range of -11.58 to -11.21 kcal/mol, which is categorized as 'high scoring'. Ligands are docked with the catalytic residues Asp 215, Ser 75, Thr 33 and Ala 217, respectively. Molecular dynamic simulation study of free enzyme and the enzyme complex with 4-(5-(4-methoxyphenyl)-1'phenyl-3'-(p-tolyl)-3,4-1'H,2H-[3,4'-bipyrazol]-2-yl)benezenesulfonamide indicated structural stability. The trajectory analysis of complex reveals that the HAP-ligand complex is more stable than the free HAP. We are of the opinion that our results will be useful for designing potential anti-malarial compounds. AbbreviationsADTauto dock toolsBSPPbenzene sulfonamide substituted pyrazole-pyrazolineCQchloroquineHAPhisto aspartic proteaseKKelvinMDmolecular dockingMM/PBSAmolecular mechanics/Poisson Boltzmann surface areaNVTnormal volume and temperatureNPTnormal pressure and temperatureNsnanosecondsPDBprotein data bank.pdbprogram data base formatP. falciparumPlasmodium falciparumPspicosecondsPMsplasmepsinsP. vivaxPlasmodium vivaxRgradius of gyrationRMSDroot mean square deviationRMSFroot mean square fluctuationWHOWorld Health OrganizationCommunicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mahalakshmi Thillainayagam
- Medical & Biological Computing Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Sudha Ramaiah
- Medical & Biological Computing Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Anand Anbarasu
- Medical & Biological Computing Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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Xu M, Wu P, Shen F, Ji J, Rakesh KP. Chalcone derivatives and their antibacterial activities: Current development. Bioorg Chem 2019; 91:103133. [PMID: 31374524 DOI: 10.1016/j.bioorg.2019.103133] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/27/2019] [Accepted: 07/18/2019] [Indexed: 12/17/2022]
Abstract
The increase in antibiotic resistance due to various factors has encouraged the look for novel compounds which are active against multidrug-resistant pathogens. In this framework, chalcone-based compounds showed a diversity of pharmacological properties, and its derivatives possess a high degree of structural diversity, and it is helpful for the discovery of new therapeutic agents. The growing resistance to antibiotics worldwide has endangered their efficacy. This has led to a surging interest in the discovery of new antibacterial agents. Thus, there is an urgent need for new antibacterial drug candidates with increased strength, new targets, low cost, superior pharmacokinetic properties, and minimum side effects. The present review concluded and focuses on the recent developments in the area of medicinal chemistry to explore the diverse chemical structures of potent antibacterial agents and also describes its structure-activity relationships studies. The various synthetic structures leading to this class of neutral protective compound is common and additional structural optimization is promising for potential drug discovery and development.
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Affiliation(s)
- Man Xu
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China
| | - Piye Wu
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China
| | - Fan Shen
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China
| | - Jiayou Ji
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China
| | - K P Rakesh
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China.
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33
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Brahmbhatt GC, Sutariya TR, Atara HD, Parmar NJ, Gupta VK, Lagunes I, Padrón JM, Murumkar PR, Yadav MR. New pyrazolyl-dibenzo[b,e][1,4]diazepinones: room temperature one-pot synthesis and biological evaluation. Mol Divers 2019; 24:355-377. [PMID: 31127460 DOI: 10.1007/s11030-019-09958-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 05/08/2019] [Indexed: 01/15/2023]
Abstract
Several new (5-aryloxy-pyrazolyl)- and (5-aryl/olefin-sulfanyl-pyrazolyl)-dibenzo[b,e] [1,4] diazepinone scaffolds have been synthesized, by assembling 5-substituted 3-methyl-1-phenyl-pyrazole-4-carbaldehydes of varied nature with different cyclic diketones and aromatic diamines successfully in the presence of indium chloride in acetonitrile, at room temperature. Desired products are excellent in the purity and isolated without chromatography. All new structures are confirmed, on the basis of single-crystal X-ray diffraction data of representative 29e. Compounds reported in the present work revealed good antioxidant, antimicrobial and antiproliferative activities with promising FRAP (ferric reducing antioxidant power), bacterial resistance and human solid tumor cell growth inhibitory values, respectively. Compounds 25c and 29e, overall, registered good to moderate activity against A549 (lung), HeLa (cervix), SW1573 (lung) T-47D (breast) and WiDr (colon) cell lines, with GI50 values in the 2.6-5.1 μM and 1.8-7.5 μM ranges, respectively. Molecular docking was carried out to elucidate the binding modes of the compounds (25c, 29e) to topoisomerase I and II.
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Affiliation(s)
- Gaurangkumar C Brahmbhatt
- Department of Chemistry, Sardar Patel University, Dist. Anand, Vallabh Vidyanagar, Gujarat, 388120, India
| | - Tushar R Sutariya
- Department of Chemistry, Sardar Patel University, Dist. Anand, Vallabh Vidyanagar, Gujarat, 388120, India
| | - Hiralben D Atara
- Department of Chemistry, Sardar Patel University, Dist. Anand, Vallabh Vidyanagar, Gujarat, 388120, India
| | - Narsidas J Parmar
- Department of Chemistry, Sardar Patel University, Dist. Anand, Vallabh Vidyanagar, Gujarat, 388120, India.
| | - Vivek K Gupta
- Post-Graduate Department of Physics, University of Jammu, Jammu, Tawi, 180006, India
| | - Irene Lagunes
- BioLab, Instituto Universitario de Bio-Orgánica ''Antonio González'' (IUBO-AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, C/Astrofísico Francisco Sánchez 2, 38206, La Laguna, Spain
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica ''Antonio González'' (IUBO-AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, C/Astrofísico Francisco Sánchez 2, 38206, La Laguna, Spain
| | - Prashant R Murumkar
- Faculty of Pharmacy, The Maharaja Sayajirao University of Baroda, Vadodara, 390 001, India
| | - Mange Ram Yadav
- Faculty of Pharmacy, The Maharaja Sayajirao University of Baroda, Vadodara, 390 001, India
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34
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Abdelgawad N, Ismail MF, Hekal MH, Marzouk MI. Design, Synthesis, and Evaluation of Some Novel Heterocycles Bearing Pyrazole Moiety as Potential Anticancer Agents. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3544] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Nancy Abdelgawad
- Chemistry Department, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
| | - Mahmoud F. Ismail
- Chemistry Department, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
| | - Mohamed H. Hekal
- Chemistry Department, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
| | - Magda I. Marzouk
- Chemistry Department, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
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35
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Furanchalcone–biphenyl hybrids: synthesis, in silico studies, antitrypanosomal and cytotoxic activities. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02323-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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36
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Khan SA, Asiri AM, Zayed MEM, Parveen H, Aqlan FMS, Sharma K. Microwave‐assisted Synthesis, Characterization, and Density Functional Theory Study of Biologically Active Ferrocenyl Bis‐pyrazoline and Bis‐pyrimidine as Organometallic Macromolecules. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3381] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Salman A. Khan
- Chemistry Department, Faculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department, Faculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR)King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Mohie E. M. Zayed
- Chemistry Department, Faculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Humaira Parveen
- Department of Chemistry, Faculty of ScienceUniversity of Tabuk Tabuk 71491 Saudi Arabia
| | - Faisal M. S. Aqlan
- Chemistry Department, Faculty of ScienceJeddah University Jeddah Saudi Arabia
| | - Kamlesh Sharma
- Department of Applied Science, School of Engineering and TechnologyThe NorthCap University Sector 23A Gurgaon 122017 Haryana India
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37
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Kalaria PN, Karad SC, Raval DK. A review on diverse heterocyclic compounds as the privileged scaffolds in antimalarial drug discovery. Eur J Med Chem 2018; 158:917-936. [PMID: 30261467 DOI: 10.1016/j.ejmech.2018.08.040] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/18/2018] [Accepted: 08/14/2018] [Indexed: 12/11/2022]
Abstract
The upward extend of malaria collectively with the emergence of resistance against predictable drugs has put enormous pressure on public health systems to introduce new malaria treatments. Heterocycles play an important role in the design and discovery of new malaria active compounds. Heterocyclic compounds have attracted significant attention for malaria treatment because of simplicity of parallelization and the examining power with regard to chemical space. Introduction of a variety of heterocyclic compounds have enabled to maintain the high levels of antimalarial potency observed for other more lipophilic analogues whilst improving the solubility and the oral bioavailability in pre-clinical species. In this review, we present an overview of recent literature to provide imminent into the applications of different heterocyclic scaffolds in fighting against malaria.
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Affiliation(s)
- Piyush N Kalaria
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, 388120, Gujarat, India.
| | - Sharad C Karad
- Department of Chemistry, Marwadi University, Rajkot, Gujarat, India.
| | - Dipak K Raval
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, 388120, Gujarat, India.
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38
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Castillo JC, Tigreros A, Portilla J. 3-Formylpyrazolo[1,5- a]pyrimidines as Key Intermediates for the Preparation of Functional Fluorophores. J Org Chem 2018; 83:10887-10897. [PMID: 30051714 DOI: 10.1021/acs.joc.8b01571] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A one-pot route for the regioselective synthesis of 3-formylpyrazolo[1,5- a]pyrimidines 4a-k in good yields through a microwave-assisted process is provided. The synthesis proceeds via a cyclocondensation reaction between β-enaminones 1 with NH-3-aminopyrazoles 2, followed by formylation with an iminium salt moiety (Vilsmeyer-Haack reagent). These N-heteroaryl aldehydes 4 were successfully used as strategic intermediates for the preparation of novel functional fluorophores with yields up to 98%. The structures of the products obtained and regioselectivity of the reactions were determined on the basis of NMR measurements and X-ray diffraction analysis. Since pyrazolo[1,5- a]pyrimidines (PPs) 3 have shown an important fluorescence, photophysical properties of four 2-methylderivatives substituted at position 7 with different acceptor (A) or donor (D) groups were investigated. The compounds evaluated exhibited large Stokes shift in different solvents, but only the substituted p-methoxyphenyl (4-An) showed a strong fluorescence intensity with quantum yields up to 44% due to its greater ICT. Therefore, hybrid systems based on pyrazolo[1,5- a]pyrimidines could be used as fluorescent probes to detect biologically or environmentally relevant species.
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Affiliation(s)
- Juan-Carlos Castillo
- Bioorganic Compounds Research Group, Department of Chemistry , Universidad de los Andes , Carrera 1 No. 18A-10 , Bogotá , Colombia.,Escuela de Ciencias Químicas, Facultad de Ciencias , Universidad Pedagógica y Tecnológica de Colombia UPTC , Avenida Central del Norte , Tunja , Colombia
| | - Alexis Tigreros
- Bioorganic Compounds Research Group, Department of Chemistry , Universidad de los Andes , Carrera 1 No. 18A-10 , Bogotá , Colombia
| | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry , Universidad de los Andes , Carrera 1 No. 18A-10 , Bogotá , Colombia
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39
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Chen L, Duan H, Zhang X, Zhang Q, Huang H, Zhao J, Chen B, Hua C, Gou X. Design, Synthesis, and Biological Evaluation of Novel 1,3,4-Thiadiazolylpyrazolines Compounds Containing Ferrocene. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Liqin Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Huihui Duan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Xinyu Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Qiong Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Hailian Huang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Junlong Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Bang Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Chengwen Hua
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Xiaofeng Gou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
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Khanra S, Kumar YP, Dash J, Banerjee R. In vitro screening of known drugs identified by scaffold hopping techniques shows promising leishmanicidal activity for suramin and netilmicin. BMC Res Notes 2018; 11:319. [PMID: 29784022 PMCID: PMC5963029 DOI: 10.1186/s13104-018-3446-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 05/15/2018] [Indexed: 01/07/2023] Open
Abstract
Objective The rapid emergence of drug resistant Leishmanial strains makes it imperative to continue the development of cheap and effective drugs against the parasite. Due to the absence of effective vaccines against leishmaniasis, current therapeutic measures exclusively rely on chemotherapy. Here we attempt, to identify novel antileishmanial from a list of known drugs determined from a previous bioinformatics study. Synergism between various drug combinations (involving netilmicin, suramin, paromomycin and curcumin) have been estimated to identify potent multidrug therapies to combat the disease. Results The drugs were screened against Leishmania promastigotes by utilizing the MTT assay and against intracellular amastigotes using murine Macrophage like tumor cell, RAW 264.7 as a host. In vitro drug interactions were tested for several drug combinations with a modified fixed ratio isobologram method against both Leishmania major and Leishmania donovani. This work reports the in vitro antileishmanial activity for the aminoglycoside netilmicin (for some Leishmania parasites) and the anti-trypanosomatid suramin. Synergism was also observed between paromomycin–suramin and netilmicin–curcumin. Electronic supplementary material The online version of this article (10.1186/s13104-018-3446-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Supriya Khanra
- Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, Sector 1, Block AF, Bidhannagar, Kolkata, 700064, India
| | - Y Pavan Kumar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Rahul Banerjee
- Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, Sector 1, Block AF, Bidhannagar, Kolkata, 700064, India. .,Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
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41
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Prakash G, Boopathy M, Selvam R, Johnsanthosh Kumar S, Subramanian K. The effect of anthracene-based chalcone derivatives in the resazurin dye reduction assay mechanisms for the investigation of Gram-positive and Gram-negative bacterial and fungal infection. NEW J CHEM 2018. [DOI: 10.1039/c7nj04125j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A novel series of anthracene-based chalcone derivatives were synthesized and evaluated in terms of their antibacterial and antifungal activities.
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Affiliation(s)
- Gopi Prakash
- Department of Chemistry
- Anna University
- Chennai-600025
- India
| | - Mani Boopathy
- Department of Chemistry
- Anna University
- Chennai-600025
- India
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42
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Mojikhalifeh S, Hasaninejad A. Highly efficient, catalyst-free, one-pot, pseudo-seven-component synthesis of novel poly-substituted pyrazolyl-1,2-diazepine derivatives. Org Chem Front 2018. [DOI: 10.1039/c8qo00210j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel, green and high yielding preparation of poly-substituted pyrazolyl-1,2-diazepine derivatives is describedviaa one-pot pseudo-seven-component condensation reaction under catalyst-free conditions in EtOH at room temperature.
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Affiliation(s)
- Sanaz Mojikhalifeh
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
| | - Alireza Hasaninejad
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
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43
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Borsari C, Quotadamo A, Ferrari S, Venturelli A, Cordeiro-da-Silva A, Santarem N, Costi MP. Scaffolds and Biological Targets Avenue to Fight Against Drug Resistance in Leishmaniasis. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 2018. [DOI: 10.1016/bs.armc.2018.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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44
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Bhat ZS, Ul Lah H, Rather MA, Maqbool M, Ara T, Ahmad Z, Yousuf SK. Synthesis and in vitro evaluation of substituted 3-cinnamoyl-4-hydroxy-pyran-2-one (CHP) in pursuit of new potential antituberculosis agents. MEDCHEMCOMM 2017; 9:165-172. [PMID: 30108910 DOI: 10.1039/c7md00366h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 12/05/2017] [Indexed: 12/26/2022]
Abstract
Tuberculosis is an ever-evolving infectious disease that urgently needs new drugs. In the search for new antituberculosis agents, a library of 3-cinnamoyl-4-hydroxy-6-methyl-2H-pyran-2-ones (CHPs) (2a-2y) was synthesized and evaluated against a standard virulent laboratory strain of Mycobacterium tuberculosis H37Rv. Out of 25 compounds, 11, 5, 7 and 2 (2a and 2u) showed least, moderate, good and appreciable activities, respectively, based on minimum inhibitory concentrations (MICs). Both 2a and 2u exhibited an MIC value of 4 μg ml-1, which was close to those of standard antituberculosis drugs ethambutol, streptomycin and levofloxacin. Neither 2a nor 2u showed any activity against Gram-positive or Gram-negative bacteria and even against non-tuberculous mycobacterium, i.e. Mycobacterium smegmatis. Thus, like the antituberculosis drugs rifampicin, isoniazid and pretomanid, they are highly TB specific. All the pyrone-based chalcones showed no recognizable level of cytotoxicity against normal human kidney cell line (HEK-293) up to 80 μM concentration and 11 exhibited an IC50 ≤ 100 μM (highest tested concentration). On further investigation, both 2a and 2u proved to be nontoxic against four human cell lines but 2a proved to be a better choice as it did not reach IC50 even at 100 μM (highest tested concentration) while the IC50 of 2u was around 80 μM. In conclusion, our results demonstrate that 2a is specific against M. tuberculosis with no appreciable toxicity; its activity matches that of some clinically approved antituberculosis drugs and it therefore merits further evaluation.
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Affiliation(s)
- Zubair Shanib Bhat
- Clinical Microbiology and PK/PD Division , CSIR-Indian Institute of Integrative Medicine , Sanatnagar , Srinagar , 190005 , India . ; ; Tel: +91 194 2431253/55 ; Tel: +91 9906593222.,Academy of Scientific and Innovative Research , Indian Institute of Integrative Medicine (CSIR) , Sanatnagar , Srinagar , Jammu and Kashmir 190005 , India .
| | - Hafiz Ul Lah
- Medicinal Chemistry Division , CSIR-Indian Institute of Integrative Medicine , Sanatnagar , Srinagar , 190005 , India
| | - Muzafar Ahmad Rather
- Clinical Microbiology and PK/PD Division , CSIR-Indian Institute of Integrative Medicine , Sanatnagar , Srinagar , 190005 , India . ; ; Tel: +91 194 2431253/55 ; Tel: +91 9906593222
| | - Mubashir Maqbool
- Clinical Microbiology and PK/PD Division , CSIR-Indian Institute of Integrative Medicine , Sanatnagar , Srinagar , 190005 , India . ; ; Tel: +91 194 2431253/55 ; Tel: +91 9906593222
| | - Tabassum Ara
- National Institute of Technology-Srinagar , Jammu , Jammu & Kashmir 190006 , India
| | - Zahoor Ahmad
- Clinical Microbiology and PK/PD Division , CSIR-Indian Institute of Integrative Medicine , Sanatnagar , Srinagar , 190005 , India . ; ; Tel: +91 194 2431253/55 ; Tel: +91 9906593222.,Academy of Scientific and Innovative Research , Indian Institute of Integrative Medicine (CSIR) , Sanatnagar , Srinagar , Jammu and Kashmir 190005 , India .
| | - Syed Khalid Yousuf
- Academy of Scientific and Innovative Research , Indian Institute of Integrative Medicine (CSIR) , Sanatnagar , Srinagar , Jammu and Kashmir 190005 , India . .,Medicinal Chemistry Division , CSIR-Indian Institute of Integrative Medicine , Sanatnagar , Srinagar , 190005 , India
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Insuasty D, Robledo SM, Vélez ID, Cuervo P, Insuasty B, Quiroga J, Nogueras M, Cobo J, Abonia R. A Schmidt rearrangement-mediated synthesis of novel tetrahydro-benzo[1,4]diazepin-5-ones as potential anticancer and antiprotozoal agents. Eur J Med Chem 2017; 141:567-583. [DOI: 10.1016/j.ejmech.2017.10.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 10/09/2017] [Accepted: 10/09/2017] [Indexed: 12/13/2022]
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46
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Otero E, García E, Palacios G, Yepes LM, Carda M, Agut R, Vélez ID, Cardona WI, Robledo SM. Triclosan-caffeic acid hybrids: Synthesis, leishmanicidal, trypanocidal and cytotoxic activities. Eur J Med Chem 2017; 141:73-83. [PMID: 29028533 DOI: 10.1016/j.ejmech.2017.09.064] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/27/2017] [Accepted: 09/28/2017] [Indexed: 01/02/2023]
Abstract
The synthesis, cytotoxicity, anti-leishmanial and anti-trypanosomal activities of twelve triclosan-caffeic acid hybrids are described herein. The structure of the synthesized products was elucidated by a combination of spectrometric analyses. The synthesized compounds were evaluated against amastigotes forms of L. (V) panamensis, which is the most prevalent Leishmania species in Colombia, and against Trypanosoma cruzi, which is the pathogenic species to humans. Cytotoxicity was evaluated against human U-937 macrophages. Eight compounds were active against L. (V) panamensis (18-23, 26 and 30) and eight of them against T. cruzi (19-22, 24 and 28-30) with EC50 values lower than 40 μM. Compounds 19-22, 24 and 28-30 showed higher activities than benznidazole (BNZ). Esters 19 and 21 were the most active compounds for both L. (V) panamensis and T. cruzi with 3.82 and 11.65 μM and 8.25 and 8.69 μM, respectively. Compounds 19-22, 24 and 28-30 showed higher activities than benznidazole (BNZ). Most of the compounds showed antiprotozoal activity and with exception of 18, 26 and 28, the remaining compounds were toxic for mammalian cells, yet they have potential to be considered as candidates for anti-trypanosomal and anti-leishmanial drug development. The activity is dependent on the length of the alkyl linker with compound 19, bearing a four-carbon alkyl chain, the most performing hybrid. In general, hydroxyl groups increase both activity and cytotoxicity and the presence of the double bond in the side chain is not decisive for cytotoxicity and anti-protozoal activity.
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Affiliation(s)
- Elver Otero
- Chemistry of Colombian Plants, Institute of Chemistry, Exact and Natural Sciences School, Universidad de Antioquia-UdeA, Calle 70, No. 52-21, A.A 1226, Medellín, Colombia
| | - Elisa García
- Chemistry of Colombian Plants, Institute of Chemistry, Exact and Natural Sciences School, Universidad de Antioquia-UdeA, Calle 70, No. 52-21, A.A 1226, Medellín, Colombia
| | - Genesis Palacios
- PECET-Medical Research Institute, School of Medicine, Universidad de Antioquia-UdeA, Calle 70, No. 52-21, A.A 1226 Medellín, Colombia
| | - Lina M Yepes
- PECET-Medical Research Institute, School of Medicine, Universidad de Antioquia-UdeA, Calle 70, No. 52-21, A.A 1226 Medellín, Colombia
| | - Miguel Carda
- Department of Inorganic and Organic Chemistry, Jaume I University, E-12071 Castellón, Spain
| | - Raúl Agut
- Department of Inorganic and Organic Chemistry, Jaume I University, E-12071 Castellón, Spain
| | - Iván D Vélez
- PECET-Medical Research Institute, School of Medicine, Universidad de Antioquia-UdeA, Calle 70, No. 52-21, A.A 1226 Medellín, Colombia
| | - Wilson I Cardona
- Chemistry of Colombian Plants, Institute of Chemistry, Exact and Natural Sciences School, Universidad de Antioquia-UdeA, Calle 70, No. 52-21, A.A 1226, Medellín, Colombia.
| | - Sara M Robledo
- PECET-Medical Research Institute, School of Medicine, Universidad de Antioquia-UdeA, Calle 70, No. 52-21, A.A 1226 Medellín, Colombia.
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47
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García E, Coa JC, Otero E, Carda M, Vélez ID, Robledo SM, Cardona WI. Synthesis and antiprotozoal activity of furanchalcone–quinoline, furanchalcone–chromone and furanchalcone–imidazole hybrids. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2076-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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48
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Vergara S, Carda M, Agut R, Yepes LM, Vélez ID, Robledo SM, Galeano WC. Synthesis, antiprotozoal activity and cytotoxicity in U-937 macrophages of triclosan–hydrazone hybrids. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2019-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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49
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Tajuddeen N, Isah MB, Suleiman MA, van Heerden FR, Ibrahim MA. The chemotherapeutic potential of chalcones against leishmaniases: a review. Int J Antimicrob Agents 2017; 51:311-318. [PMID: 28668673 DOI: 10.1016/j.ijantimicag.2017.06.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/06/2017] [Accepted: 06/17/2017] [Indexed: 02/07/2023]
Abstract
Leishmaniases are endemic diseases in tropical and sub-tropical regions of the world and are considered by the World Health Organization (WHO) to be among the six most important neglected tropical diseases. The current therapeutic arsenal against the disease is associated with a series of chemotherapeutic setbacks. However, since the early 1990s, naturally occurring chalcones with promising antileishmanial effects have been reported, and several other synthetic chalcones and chalcone-hybrid molecules have been confirmed to possess potent activity against various Leishmania species. This paper is a comprehensive review covering the antileishmanial activity of 34 naturally occurring chalcones, 224 synthetic/semisynthetic chalcones and 54 chalcone-hybrid molecules. Several chalcones in the synthetic/semisynthetic category had IC50 values < 5 µM, with very good selectivity against parasites, and the structure-activity relationships as well as the proposed mechanism of action are discussed. We identified knowledge-gaps with the hope of providing future direction for the discovery of novel antileishmanial drugs from chalcones.
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Affiliation(s)
- Nasir Tajuddeen
- Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria
| | | | | | - Fanie R van Heerden
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa
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50
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Ramírez–Prada J, Robledo SM, Vélez ID, Crespo MDP, Quiroga J, Abonia R, Montoya A, Svetaz L, Zacchino S, Insuasty B. Synthesis of novel quinoline–based 4,5–dihydro–1 H –pyrazoles as potential anticancer, antifungal, antibacterial and antiprotozoal agents. Eur J Med Chem 2017; 131:237-254. [DOI: 10.1016/j.ejmech.2017.03.016] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/07/2017] [Accepted: 03/10/2017] [Indexed: 12/11/2022]
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