1
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Santos HLC, Rebello KM. An Overview of Mucosa-Associated Protozoa: Challenges in Chemotherapy and Future Perspectives. Front Cell Infect Microbiol 2022; 12:860442. [PMID: 35548465 PMCID: PMC9084232 DOI: 10.3389/fcimb.2022.860442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/29/2022] [Indexed: 11/13/2022] Open
Abstract
Parasitic infections caused by protozoans that infect the mucosal surfaces are widely neglected worldwide. Collectively, Entamoeba histolytica, Giardia lamblia, Cryptosporidium spp. and Trichomonas vaginalis infect more than a billion people in the world, being a public health problem mainly in developing countries. However, the exact incidence and prevalence data depend on the population examined. These parasites ultimately cause pathologies that culminate in liver abscesses, malabsorption syndrome, vaginitis, and urethritis, respectively. Despite this, the antimicrobial agents currently used to treat these diseases are limited and often associated with adverse side effects and refractory cases due to the development of resistant parasites. The paucity of drug treatments, absence of vaccines and increasing problems of drug resistance are major concerns for their control and eradication. Herein, potential candidates are reviewed with the overall aim of determining the knowledge gaps and suggest future perspectives for research. This review focuses on this public health problem and focuses on the progress of drug repositioning as a potential strategy for the treatment of mucosal parasites.
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Affiliation(s)
- Helena Lucia Carneiro Santos
- Laboratório de Estudos Integrados em Protozoologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
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2
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Thoination of N-alkyl-O-acyl hydroxamic acid derivatives via Lawesson's reagent. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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3
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Varpe BD, Kulkarni AA, Jadhav SB, Mali AS, Jadhav SY. Isatin Hybrids and Their Pharmacological Investigations. Mini Rev Med Chem 2021; 21:1182-1225. [PMID: 33302835 DOI: 10.2174/1389557520999201209213029] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 09/01/2020] [Accepted: 10/16/2020] [Indexed: 11/22/2022]
Abstract
Hybridization is an important strategy to design molecules that can be effectively used to treat fatal diseases known to mankind. Molecular hybrids and their pharmacological investigations aided in discovering several potent isatin (Indole 2, 3 dione) derivatives with anti-HIV, antimalarial, antitubercular, antibacterial, and anticancer activities. Indole-2,3-dione and their derivatives have diverse pharmacological properties and have a prominent role in the discovery of new drugs. To understand the various approaches for designing new molecules based on isatin nucleus analysis of various pharmacophore hybrids, spacers/linkers between pharmacophores and isatin for hybridization and their biological activities are important. This review discusses the progress in developing isatin hybrids as biologically effective agents and their crucial aspects of design and structure-activity relationships.
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Affiliation(s)
- Bhushan D Varpe
- Department of Pharmaceutical Chemistry, DKSS's Institute of Pharmaceutical Science and Research, Swami Chincholi, Dist-Pune, 413130 Maharashtra, India
| | - Amol A Kulkarni
- Department of Pharmaceutical Chemistry, DKSS's Institute of Pharmaceutical Science and Research, Swami Chincholi, Dist-Pune, 413130 Maharashtra, India
| | - Shailaja B Jadhav
- PES's Modern College of Pharmacy, Nigdi, Pune, 411044, Maharashtra, India
| | - Anil S Mali
- Department of Pharmaceutical Chemistry, DKSS's Institute of Pharmaceutical Science and Research, Swami Chincholi, Dist-Pune, 413130 Maharashtra, India
| | - Shravan Y Jadhav
- Department of Chemistry, DBF Dayanand College of Arts & Science, Solapur 413002, Maharashtra, India
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4
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Morais PAB, Francisco CS, de Paula H, Ribeiro R, Eloy MA, Javarini CL, Neto ÁC, Júnior VL. Semisynthetic Triazoles as an Approach in the Discovery of Novel Lead Compounds. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210126100227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Historically, medicinal chemistry has been concerned with the approach of organic
chemistry for new drug synthesis. Considering the fruitful collections of new molecular entities,
the dedicated efforts for medicinal chemistry are rewarding. Planning and search for new
and applicable pharmacologic therapies involve the altruistic nature of the scientists. Since
the 19th century, notoriously applying isolated and characterized plant-derived compounds in
modern drug discovery and various stages of clinical development highlight its viability and
significance. Natural products influence a broad range of biological processes, covering transcription,
translation, and post-translational modification, being effective modulators of most
basic cellular processes. The research of new chemical entities through “click chemistry”
continuously opens up a map for the remarkable exploration of chemical space towards leading
natural products optimization by structure-activity relationship. Finally, in this review, we expect to gather a
broad knowledge involving triazolic natural product derivatives, synthetic routes, structures, and their biological activities.
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Affiliation(s)
- Pedro Alves Bezerra Morais
- Centro de Ciencias Exatas, Naturais e da Saude, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Carla Santana Francisco
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
| | - Heberth de Paula
- Centro de Ciencias Exatas, Naturais e da Saude, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Rayssa Ribeiro
- Programa de Pos- Graduacao em Agroquimica, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Mariana Alves Eloy
- Programa de Pos- Graduacao em Agroquimica, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Clara Lirian Javarini
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
| | - Álvaro Cunha Neto
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
| | - Valdemar Lacerda Júnior
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
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5
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Lee SM, Kim MS, Hayat F, Shin D. Recent Advances in the Discovery of Novel Antiprotozoal Agents. Molecules 2019; 24:E3886. [PMID: 31661934 PMCID: PMC6864685 DOI: 10.3390/molecules24213886] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 10/15/2019] [Accepted: 10/23/2019] [Indexed: 11/16/2022] Open
Abstract
Parasitic diseases have serious health, social, and economic impacts, especially in the tropical regions of the world. Diseases caused by protozoan parasites are responsible for considerable mortality and morbidity, affecting more than 500 million people worldwide. Globally, the burden of protozoan diseases is increasing and is been exacerbated because of a lack of effective medication due to the drug resistance and toxicity of current antiprotozoal agents. These limitations have prompted many researchers to search for new drugs against protozoan parasites. In this review, we have compiled the latest information (2012-2017) on the structures and pharmacological activities of newly developed organic compounds against five major protozoan diseases, giardiasis, leishmaniasis, malaria, trichomoniasis, and trypanosomiasis, with the aim of showing recent advances in the discovery of new antiprotozoal drugs.
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Affiliation(s)
- Seong-Min Lee
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
| | - Min-Sun Kim
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
| | - Faisal Hayat
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
| | - Dongyun Shin
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
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6
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Kumar S, Bains T, Won Kim AS, Tam C, Kim J, Cheng LW, Land KM, Debnath A, Kumar V. Highly Potent 1 H-1,2,3-Triazole-Tethered Isatin-Metronidazole Conjugates Against Anaerobic Foodborne, Waterborne, and Sexually-Transmitted Protozoal Parasites. Front Cell Infect Microbiol 2018; 8:380. [PMID: 30425970 PMCID: PMC6218680 DOI: 10.3389/fcimb.2018.00380] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 10/09/2018] [Indexed: 12/26/2022] Open
Abstract
Parasitic infections like amebiasis, trichomoniasis, and giardiasis are major health threats in tropical and subtropical regions of the world. Metronidazole (MTZ) is the current drug of choice for amebiasis, giardiasis, and trichomoniasis but it has several adverse effects and potential resistance is a concern. In order to develop alternative antimicrobials, a library of 1H-1,2,3-triazole-tethered metronidazole-isatin conjugates was synthesized using Huisgen's azide-alkyne cycloaddition reaction and evaluated for their amebicidal, anti-trichomonal, and anti-giardial potential. Most of the synthesized conjugates exhibited activities against Trichomonas vaginalis, Tritrichomonas foetus, Entamoeba histolytica, and Giardia lamblia. While activities against T. vaginalis and T. foetus were comparable to that of the standard drug MTZ, better activities were observed against E. histolytica and G. lamblia. Conjugates 9d and 10a were found to be 2–3-folds more potent than MTZ against E. histolytica and 8–16-folds more potent than MTZ against G. lamblia. Further analysis of these compounds on fungi and bacteria did not show inhibitory activity, demonstrating their specific anti-protozoal properties.
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Affiliation(s)
- Sumit Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
| | - Trpta Bains
- Center for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Ashley Sae Won Kim
- Department of Biological Sciences, University of the Pacific, Stockton, CA, United States
| | - Christina Tam
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA, United States
| | - Jong Kim
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA, United States
| | - Luisa W Cheng
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA, United States
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA, United States
| | - Anjan Debnath
- Center for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
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7
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Méndez L, Poeylaut-Palena AA, Mata EG. Molecular Diversity by Olefin Cross-Metathesis on Solid Support. Generation of Libraries of Biologically Promising β-Lactam Derivatives. Molecules 2018; 23:E1193. [PMID: 29772720 PMCID: PMC6100001 DOI: 10.3390/molecules23051193] [Citation(s) in RCA: 6] [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: 05/07/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 11/16/2022] Open
Abstract
The application of the reagent-based diversification strategy for generation of libraries of biologically promising β-lactam derivatives is described. Key features are the versatility of the linker used and the cross-metathesis functionalization at the cleavage step. From an immobilized primary library, diversity was expanded by applying different cleavage conditions, leading to a series of cholesterol absorption inhibitor analogues together with interesting hybrid compounds through incorporation of a chalcone moiety.
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Affiliation(s)
- Luciana Méndez
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina.
| | - Andrés A Poeylaut-Palena
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina.
| | - Ernesto G Mata
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina.
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8
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Singh A, Nisha, Bains T, Hahn HJ, Liu N, Tam C, Cheng LW, Kim J, Debnath A, Land KM, Kumar V. Design, Synthesis and Preliminary Antimicrobial Evaluation of N-Alkyl Chain Tethered C-5 Functionalized Bis-Isatins. MEDCHEMCOMM 2017; 8:1982-1992. [PMID: 29449910 DOI: 10.1039/c7md00434f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A series of N-alkyl tethered C-5 functionalized bis-isatins were synthesized and evaluated for antimicrobial activity against pathogenic microorganisms. The preliminary evaluation studies revealed the compound 4t, with an optimal combination of bromo-substituent at the C-5 position of isatin ring along with propyl chain linker being most active among the synthesized series exhibiting an IC50 value of 3.72 μM against Trichomonas vaginalis while 4j exhibited an IC50 value of 14.8 μM against Naegleria fowleri, more effective than the standard drug Miltefosine. The compound 3f with an octyl spacer length was the most potent among the series against Giardia lamblia with an IC50 of 18.4 μM while 3d exhibited an IC50 of 23 μM against Entamoeba histolytica. This library was also screened against the fungal pathogen Aspergillus parasiticus. A number of the compounds demonstrated potency against this fungus, illustrating a possible broad-spectrum activity. Furthermore, an evaluation of these synthesized compounds against a panel of normal flora bacteria revealed them to be non-cytotoxic, demonstrating the selectivity of these compounds. This observation, in combination with previous studies that isatin is non-toxic to humans, presents a new possible scaffold for drug discovery against these important protozoal pathogens of humans and animals.
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Affiliation(s)
- Amandeep Singh
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Nisha
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Trpta Bains
- Centre for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Hye Jee Hahn
- Centre for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Nicole Liu
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Christina Tam
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA
| | - Luisa W Cheng
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA
| | - Jong Kim
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA
| | - Anjan Debnath
- Centre for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
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9
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Kuila B, Kumar Y, Mahajan D, Kumar K, Singh P, Bhargava G. A facile and chemoselective synthesis of 1,4-benzodiazepin-2-ones and dienyl thiazolidin-4-ones. RSC Adv 2016. [DOI: 10.1039/c6ra10021j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A chemoselective synthesis of novel 1,4-benzodiazepin-2-ones and dienyl thiazolidin-4-one carboxylates in excellent yields by ring transformation reactions of functionally decorated 2-azetidin-3-thiazolidin-4-ones is reported.
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Affiliation(s)
- Bilash Kuila
- Department of Applied Sciences
- I. K. Gujral Punjab Technical University
- Kapurthala
- India
| | - Yogesh Kumar
- Department of Applied Sciences
- I. K. Gujral Punjab Technical University
- Kapurthala
- India
| | | | - Kapil Kumar
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar
- India
| | | | - Gaurav Bhargava
- Department of Applied Sciences
- I. K. Gujral Punjab Technical University
- Kapurthala
- India
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10
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Bogdanov AV, Sadykov TI, Musin LI, Khamatgalimov AR, Krivolapov DB, Dobrynin AB, Mironov VF. Chemoselective oxidation of 1-alkenylisatins with m-chloroperbenzoic acid. Synthesis of new derivatives of isatoic anhydride. RUSS J GEN CHEM+ 2015. [DOI: 10.1134/s1070363215090030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Kumar K, Liu N, Yang D, Na D, Thompson J, Wrischnik LA, Land KM, Kumar V. Synthesis and antiprotozoal activity of mono- and bis-uracil isatin conjugates against the human pathogen Trichomonas vaginalis. Bioorg Med Chem 2015; 23:5190-7. [PMID: 25999204 DOI: 10.1016/j.bmc.2015.04.075] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 04/22/2015] [Accepted: 04/24/2015] [Indexed: 01/02/2023]
Abstract
A library of mono- and bis-uracil isatin conjugates were synthesized and subjected for the assessment of their in vitro activity against the protozoal pathogen Trichomonas vaginalis. The structure activity studies (SAR) revealed that the bis-uracil-isatin based conjugates were more effective than their corresponding mono conjugates in inhibiting the growth of T. vaginalis at approximately 10 μM with no visual effect on mammalian cells at the same concentration.
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Affiliation(s)
- Kewal Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Nicole Liu
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Donald Yang
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Daniel Na
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - John Thompson
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Lisa A Wrischnik
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA.
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India.
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12
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β-amino-alcohol tethered 4-aminoquinoline-isatin conjugates: synthesis and antimalarial evaluation. Eur J Med Chem 2014; 84:566-73. [PMID: 25062007 PMCID: PMC7115587 DOI: 10.1016/j.ejmech.2014.07.064] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/16/2014] [Accepted: 07/19/2014] [Indexed: 11/25/2022]
Abstract
A series of β-amino alcohol tethered 4-aminoquinoline-isatin conjugates were synthesized with the aim of probing their antimalarial structure activity relationship. Two of the most active conjugates (11b and 11f) exhibited antimalarial efficacy comparable to that of chloroquine, with IC50 values of 11.8 and 13.5 nM, respectively against chloroquine resistant W2 strain of Plasmodium falciparum and are devoid of any cytotoxicity. Synthesis of β-amino alcohol tethered isatin 4-aminoquinoline conjugates. Antimalarial evaluation against W2 strains of Plasmodium falciparum. Most active and non-cytotoxic conjugate exhibited an IC50 11.7 nM.
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13
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Nisha, Tran R, Yang D, Hall D, Hopper MJ, Wrischnik LA, Land KM, Kumar V. Cu(I)Cl-promoted synthesis of novel N-alkylated isatin analogs with an extension toward isatin-4-aminoquinoline conjugates: in vitro analysis against Trichomonas vaginalis. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1024-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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14
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Raj R, Biot C, Carrère-Kremer S, Kremer L, Guérardel Y, Gut J, Rosenthal PJ, Forge D, Kumar V. 7-Chloroquinoline-isatin Conjugates: Antimalarial, Antitubercular, and Cytotoxic Evaluation. Chem Biol Drug Des 2014; 83:622-9. [DOI: 10.1111/cbdd.12273] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 11/28/2013] [Accepted: 12/09/2013] [Indexed: 12/12/2022]
Affiliation(s)
- Raghu Raj
- Department of Chemistry; Guru Nanak Dev University; Amritsar Punjab 143005 India
| | - Christophe Biot
- Unité de Glycobiologie Structurale et Fonctionnelle; Université Lille 1; F-59650 Villeneuve d'Ascq France
- CNRS; UMR 8576; Villeneuve d'Ascq F-59650 France
| | - Séverine Carrère-Kremer
- Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques; UMR 5235 CNRS; Université Montpellier 2; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
| | - Laurent Kremer
- Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques; UMR 5235 CNRS; Université Montpellier 2; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
- INSERM; DIMNP; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
| | - Yann Guérardel
- Unité de Glycobiologie Structurale et Fonctionnelle; Université Lille 1; F-59650 Villeneuve d'Ascq France
- CNRS; UMR 8576; Villeneuve d'Ascq F-59650 France
| | - Jiri Gut
- Department of Medicine; University of California; San Francisco CA 94143 USA
| | - Philip J. Rosenthal
- Department of Medicine; University of California; San Francisco CA 94143 USA
| | - Delphine Forge
- Laboratory of Organic Chemistry; Faculty of Sciences; University of Mons-UMONS; 20 place du parc B-7000 Mons Belgium
| | - Vipan Kumar
- Department of Chemistry; Guru Nanak Dev University; Amritsar Punjab 143005 India
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15
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Raj R, Sharma V, Hopper MJ, Patel N, Hall D, Wrischnik LA, Land KM, Kumar V. Synthesis and preliminary in vitro activity of mono- and bis-1 H-1,2,3-triazole-tethered β-lactam-isatin conjugates against the human protozoal pathogen Trichomonas vaginalis. Med Chem Res 2014; 23:3671-3680. [PMID: 32214766 PMCID: PMC7080013 DOI: 10.1007/s00044-014-0956-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 02/12/2014] [Indexed: 02/03/2023]
Abstract
In this study, we describe the synthesis of mono- and bis-1H-1,2,3-triazole-tethered β-lactam-isatin conjugates using copper-catalysed azide-alkyne cycloaddition reaction between mono- and di-propargylated azetidin-2-ones and N-alkylazido isatins. The synthesized conjugates were evaluated for their preliminary in vitro analysis against Trichomonas vaginalis at 50 μM. The efficacy of synthesized hybrids was observed to depend on the substituent at N-1 position of β-lactam ring, as well as the presence of single/double 1H-1,2,3-triazole linker. Among the synthesized conjugates, the presence of a p-tolyl substituent at N-1 of β-lactam ring was preferred for good activity profiles while the increase in spacer length did not influence the efficacy of the compounds. Compounds with high levels of potency were further analysed to determine their IC50 values, as well as cytotoxicity profiles against mammalian cells. The most active compound in the synthesized conjugates displayed an IC50 value of 10.49 μM against cultured G3 strain of T. vaginalis and was non-toxic to cultured mammalian HeLa cells at the same concentration.
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Affiliation(s)
- Raghu Raj
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| | - Vaishali Sharma
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| | - Melissa J. Hopper
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211 USA
| | - Neal Patel
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211 USA
| | - Dominique Hall
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211 USA
| | - Lisa A. Wrischnik
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211 USA
| | - Kirkwood M. Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211 USA
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005 Punjab India
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16
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Nisha, Kumar K, Bhargava G, Land KM, Chang KH, Arora R, Sen S, Kumar V. N-Propargylated isatin-Mannich mono- and bis-adducts: synthesis and preliminary analysis of in vitro activity against Tritrichomonas foetus. Eur J Med Chem 2014; 74:657-63. [PMID: 24561663 PMCID: PMC7115568 DOI: 10.1016/j.ejmech.2014.01.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/26/2013] [Accepted: 01/10/2014] [Indexed: 11/19/2022]
Abstract
Cu(I)Cl promoted synthesis of N-propargylated-isatin Mannich mono- and bis-adducts with an extension towards the synthesis of N-propargylated-isatin-7-chloroquinoline conjugates was described. The synthesized scaffolds were evaluated for their in vitro activity against the veterinary protozoal pathogen Tritrichomonas foetus and cytotoxicity against human prostate (PC-3) cancer cell line. The preliminary evaluation data revealed the enhancement in the activity profiles with the introduction of 7-chloroquinoline ring with the most active conjugates 7a, 7c and 7d exhibiting an IC50 of 22.2, 11.3 and 24.5 μM respectively against T. foetus and minimal toxicity against human prostate (PC-3) cell lines. Cu(I)Cl promoted synthesis of N-propargylated-isatin Mannich mono- and bis-adducts. Introduction of 7-chloro-quinoline moiety remarkably enhanced the activity against Tritrichomonas foetus. The most active and non-cytotoxic compound exhibited an IC50 value 11.3 μM.
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Affiliation(s)
- Nisha
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Kewal Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
| | - Gaurav Bhargava
- Department of Applied Sciences, Punjab Technical University, Kapurthala 144601, India
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Kai-Hsiang Chang
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
| | - Reena Arora
- Pharmacology Department, Sphaera Pharma Pvt. Ltd, Manesar 12205, India
| | - Somdutta Sen
- Pharmacology Department, Sphaera Pharma Pvt. Ltd, Manesar 12205, India
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India.
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Raj R, Gut J, Rosenthal PJ, Kumar V. 1H-1,2,3-Triazole-tethered isatin-7-chloroquinoline and 3-hydroxy-indole-7-chloroquinoline conjugates: synthesis and antimalarial evaluation. Bioorg Med Chem Lett 2014; 24:756-9. [PMID: 24424135 DOI: 10.1016/j.bmcl.2013.12.109] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 12/23/2013] [Accepted: 12/25/2013] [Indexed: 01/13/2023]
Abstract
A series of 1H-1,2,3-triazole-tethered isatin-7-chloroquinoline and 3-hydroxy-indole-7-chloroquinoline conjugates have been synthesized and evaluated for their antimalarial activity against chloroquine-resistant W2 strain of Plasmodium falciparum. The most potent of the test compound with an optimum combination of 3-hydroxy-indole ring and a n-butyl linker displayed an IC50 value of 69 nM.
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Affiliation(s)
- Raghu Raj
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Jiri Gut
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Philip J Rosenthal
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
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Singh P, Raj R, Singh P, Gut J, Rosenthal PJ, Kumar V. Urea/oxalamide tethered β-lactam-7-chloroquinoline conjugates: Synthesis and in vitro antimalarial evaluation. Eur J Med Chem 2014; 71:128-34. [DOI: 10.1016/j.ejmech.2013.10.079] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/01/2013] [Accepted: 10/31/2013] [Indexed: 11/15/2022]
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