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Jopale MK, Zheng Z, Choi S, Shelke BN, Mharsale N, Patil S, Chine SS, Gade V, Kahane SV, Bulakhe RN, Kim JM, Kategaonkar AH. Co(II)-Cu(II) mixed-oxide catalysts for single-step synthesis of 2,4,5-triaryl-1 H-imidazole derivatives under microwave irradiation. Dalton Trans 2024. [PMID: 39222328 DOI: 10.1039/d4dt01631a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
In this study, a catalyst composite of Co-Cu was prepared from chloride-containing precursor of Co(II) and Cu(II) metals using the milky latex of the Euphorbia neriifolia plant following green principles of synthesis. The catalyst composite was characterized using XRD, EDAX, SEM, HR-TEM, FTIR, XPS and TOF-MS. The crystallinity of the mixed-oxide composite with a distorted octahedral nature was confirmed from analysis. Chemical charge analysis of the Co-Cu mixed phase based on XPS revealed Co2+ and Cu2+ oxidation states. This material was used for synthesizing 2,4,5-triaryl-1H-imidazole (TIMDZOL) derivatives. Analysis of reaction conditions revealed that EtOH : PEG at 8 : 2 ratio under microwave conditions showed better yields with less time and better reusability of the Co-Cu catalyst.
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Affiliation(s)
- Manohar K Jopale
- Department of Chemistry, M.V.P. Samaj's Arts, Commerce & Science College, Jawahar Road, Tryambakeshwar, Nashik 422 212, Maharashtra, India
- Department of Chemistry, M.V.P. Samaj's K.R.T. Arts, B.H. Commerce and A.M. Science (KTHM) College, Nashik-422 002, Maharashtra, India.
| | - Zhiyong Zheng
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Soowon Choi
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Bharat N Shelke
- Department of Chemistry, M.V.P. Samaj's SVKT, Arts, Commerce & Science College, Deolali Camp, Nashik 422 401, Maharashtra, India
| | - Nilesh Mharsale
- Department of Chemistry, M.V.P. Samaj's Arts, Commerce & Science College, Jawahar Road, Tryambakeshwar, Nashik 422 212, Maharashtra, India
| | - Shripad Patil
- Department of Chemistry, Rayat Shikshan Sanstha's, Dada Patil Mahavidyalaya, Karjat, Ahmednagar 414 401, Maharashtra, India
| | - Sonali S Chine
- Department of Engineering Sciences. & Humanities, Sanjivani College of Engineering, Kopargaon (S.P.P.U. Pune), Ahmednagar 423 601, Maharashtra, India
| | - Vilas Gade
- Department of Chemistry, Rayat Shikshan Sanstha's S. S. G. M. College Kopargaon, Ahmednagar, 423601, Maharashtra, India
| | - Shital V Kahane
- Department of Physics, Dr Vishwanath Karad MIT World Peace University, Kothrud, Pune, India
| | - Ravindra N Bulakhe
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Ji Man Kim
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Amol H Kategaonkar
- Department of Chemistry, M.V.P. Samaj's K.R.T. Arts, B.H. Commerce and A.M. Science (KTHM) College, Nashik-422 002, Maharashtra, India.
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Carvalho DB, Costa PAN, Portapilla GB, das Neves AR, Shiguemoto CYK, Pelizaro BI, Silva F, Piranda EM, Arruda CCP, Gaspari PDM, Cardoso IA, Luccas PH, Nonato MC, Lopes NP, de Albuquerque S, Baroni ACM. Design, synthesis and antitrypanosomatid activity of 2-nitroimidazole-3,5-disubstituted isoxazole compounds based on benznidazole. Eur J Med Chem 2023; 260:115451. [PMID: 37573209 DOI: 10.1016/j.ejmech.2023.115451] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 08/14/2023]
Abstract
Chagas disease and leishmaniasis are neglected diseases of high priority as a public health problem. Pharmacotherapy is based on the administration of a few drugs, which exhibit hazardous adverse effects and toxicity to the patients. Thus, the search for new antitrypanosomatid drugs is imperative to overcome the limitations of the treatments. In this work, 46 2-nitroimidazole 3,5-disubstituted isoxazole compounds were synthesized in good yields by [3 + 2] cycloaddition reaction between terminal acetylene (propargyl-2-nitroimidazole) and chloro-oximes. The compounds were non-toxic to LLC-MK2 cells. Compounds 30, 35, and 44 showed in vitro antichagasic activity, 15-fold, 12-fold, and 10-fold, respectively, more active than benznidazole (BZN). Compounds 30, 35, 44, 45, 53, and 61 acted as substrates for the TcNTR enzyme, indicating that this might be one of the mechanisms of action involved in their antiparasitic activity. Piperazine series and 4-monosubstituted compounds were potent against T. cruzi parasites. Besides the in vitro activity observed in compound 45, the in vivo assay showed that the compound only reduced the parasitemia levels by the seventh-day post-infection (77%, p > 0.001) compared to the control group. However, 45 significantly reduced the parasite load in cardiac tissue (p < 0.01) 11 days post-infection. Compounds 49, 52, and 54 showed antileishmanial activity against intracellular amastigotes of Leishmania (L.) amazonensis at the same range as amphotericin B. These findings highlight the antitrypanosomatid properties of 2-nitroimidazole 3,5-disubstituted isoxazole compounds and the possibility in using them as antitrypanosomatid agents in further studies.
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Affiliation(s)
- Diego B Carvalho
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79051-470, Brazil
| | - Pedro A N Costa
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79051-470, Brazil; Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79070-900, Brazil
| | - Gisele B Portapilla
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo, Ribeirão Preto, São Paulo, CEP 14040-900, Brazil
| | - Amarith R das Neves
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79051-470, Brazil; Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79070-900, Brazil
| | - Cristiane Y K Shiguemoto
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79051-470, Brazil
| | - Bruno I Pelizaro
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79051-470, Brazil
| | - Fernanda Silva
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79070-900, Brazil
| | - Eliane M Piranda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79070-900, Brazil
| | - Carla C P Arruda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79070-900, Brazil
| | - Priscyla D M Gaspari
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - Iara A Cardoso
- Laboratório de Cristalografia de Proteínas, Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - Pedro H Luccas
- Laboratório de Cristalografia de Proteínas, Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - M Cristina Nonato
- Laboratório de Cristalografia de Proteínas, Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - Norberto P Lopes
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos, Departamento de Ciências Biomoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n Monte Alegre, Ribeirão Preto, SP, CEP 14040-903, Brazil
| | - Sergio de Albuquerque
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo, Ribeirão Preto, São Paulo, CEP 14040-900, Brazil
| | - Adriano C M Baroni
- Laboratório de Síntese e Química Medicinal (LASQUIM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grossso do Sul- UFMS, Campo Grande, Mato Grosso do Sul, CEP 79051-470, Brazil.
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Rubio-Hernández M, Alcolea V, Pérez-Silanes S. Potential of sulfur-selenium isosteric replacement as a strategy for the development of new anti-chagasic drugs. Acta Trop 2022; 233:106547. [PMID: 35667455 DOI: 10.1016/j.actatropica.2022.106547] [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: 04/11/2022] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 11/25/2022]
Abstract
Current treatment for Chagas disease is based on only two drugs: benznidazole and nifurtimox. Compounds containing sulfur (S) in their structure have shown promising results in vitro and in vivo against Trypanosoma cruzi, the parasite causing Chagas disease. Notably, some reports show that the isosteric replacement of S by selenium (Se) could be an interesting strategy for the development of new compounds for the treatment of Chagas disease. To date, the activity against T. cruzi of three Se- containing groups has been compared with their S counterparts: selenosemicarbazones, selenoquinones, and selenocyanates. More studies are needed to confirm the positive results of Se compounds. Therefore, we have investigated S compounds described in the literature tested against T. cruzi. We focused on those tested in vivo that allowed isosteric replacement to propose their Se counterparts as promising compounds for the future development of new drugs against Chagas disease.
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Beltran-Hortelano I, Atherton RL, Rubio-Hernández M, Sanz-Serrano J, Alcolea V, Kelly JM, Pérez-Silanes S, Olmo F. Design and synthesis of Mannich base-type derivatives containing imidazole and benzimidazole as lead compounds for drug discovery in Chagas Disease. Eur J Med Chem 2021; 223:113646. [PMID: 34182359 DOI: 10.1016/j.ejmech.2021.113646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 10/21/2022]
Abstract
The protozoan parasite Trypanosoma cruzi is the causative agent of Chagas disease, the most important parasitic infection in Latin America. The only treatments currently available are nitro-derivative drugs that are characterised by high toxicity and limited efficacy. Therefore, there is an urgent need for more effective, less toxic therapeutic agents. We have previously identified the potential for Mannich base derivatives as novel inhibitors of this parasite. To further explore this family of compounds, we synthesised a panel of 69 new analogues, based on multi-parametric structure-activity relationships, which allowed optimization of both anti-parasitic activity, physicochemical parameters and ADME properties. Additionally, we optimized our in vitro screening approaches against all three developmental forms of the parasite, allowing us to discard the least effective and trypanostatic derivatives at an early stage. We ultimately identified derivative 3c, which demonstrated excellent trypanocidal properties, and a synergistic mode of action against trypomastigotes in combination with the reference drug benznidazole. Both its druggability and low-cost production make this derivative a promising candidate for the preclinical, in vivo assays of the Chagas disease drug-discovery pipeline.
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Affiliation(s)
- Iván Beltran-Hortelano
- Universidad de Navarra, ISTUN Instituto de Salud Tropical, Irunlarrea 1, 31008, Pamplona, Spain; Universidad de Navarra, Pharmacy and Nutrition Faculty, Department of Pharmaceutical Technology and Chemistry, Campus Universitario, 31080, Pamplona, Spain
| | - Richard L Atherton
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, London, WC1 7HT, United Kingdom
| | - Mercedes Rubio-Hernández
- Universidad de Navarra, ISTUN Instituto de Salud Tropical, Irunlarrea 1, 31008, Pamplona, Spain; Universidad de Navarra, Pharmacy and Nutrition Faculty, Department of Pharmaceutical Technology and Chemistry, Campus Universitario, 31080, Pamplona, Spain
| | - Julen Sanz-Serrano
- Universidad de Navarra, Pharmacy and Nutrition Faculty, Department of Pharmacology and Toxicology, Irunlarrea 1, 31008, Pamplona, Spain
| | - Verónica Alcolea
- Universidad de Navarra, ISTUN Instituto de Salud Tropical, Irunlarrea 1, 31008, Pamplona, Spain; Universidad de Navarra, Pharmacy and Nutrition Faculty, Department of Pharmaceutical Technology and Chemistry, Campus Universitario, 31080, Pamplona, Spain
| | - John M Kelly
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, London, WC1 7HT, United Kingdom
| | - Silvia Pérez-Silanes
- Universidad de Navarra, ISTUN Instituto de Salud Tropical, Irunlarrea 1, 31008, Pamplona, Spain; Universidad de Navarra, Pharmacy and Nutrition Faculty, Department of Pharmaceutical Technology and Chemistry, Campus Universitario, 31080, Pamplona, Spain.
| | - Francisco Olmo
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, London, WC1 7HT, United Kingdom.
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The role of imidazole and benzimidazole heterocycles in Chagas disease: A review. Eur J Med Chem 2020; 206:112692. [PMID: 32818869 DOI: 10.1016/j.ejmech.2020.112692] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 02/02/2023]
Abstract
The haemoflagellate protozoan Trypanosoma cruzi (T. cruzi) is the causative agent of Chagas disease (CD), a potentially life-threatening disease. Little by little, remarkable progress has been achieved against CD, although it is still not enough. In the absence of effective chemotherapy, many research groups, organizations and pharmaceutical companies have focused their efforts on the search for compounds that could become viable drugs against CD. Within the wide variety of reported derivatives, this review summarizes and provides a global vision of the situation of those compounds that include broadly studied heterocycles in their structures due to their applications in medicinal chemistry: imidazole and benzimidazole rings. Therefore, the intention of this work is to present a compilation, as much as possible, of all the reported information, regarding these imidazole and benzimidazole derivatives against T. cruzi, as a starting point for future researchers in this field.
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Wang Y, Ren FD, Cao DL. A dynamic and electrostatic potential prediction of the prototropic tautomerism between imidazole 3-oxide and 1-hydroxyimidazole in external electric field. J Mol Model 2019; 25:330. [PMID: 31659461 DOI: 10.1007/s00894-019-4216-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 09/24/2019] [Indexed: 10/25/2022]
Abstract
In order to obtain an optimum scheme for separating the proton-transfer tautomer, a dynamic investigation into the effect of the external electric field on the proton-transfer tautomeric conversion in imidazole 3-oxide and 1-hydroxyimidazole was carried out at the M06-2X/6-311++G** and CCSD(T)/6-311++G(2d,p) level, accompanied by the analysis of the surface electrostatic potentials. The results show that, for both the forward reaction "imidazole 3-oxide → N-hydroxyimidazole free radical → 1-hydroxyimidazole" and its reverse reaction processes, the fields parallel to the N→O or N-OH bond axis affect the barrier heights and rate constants considerably more than those parallel to the other orientations. As the field strength is increased along the orientation from the O to N atom, the chemical equilibrium moves toward the direction for the formation of 1-hydroxyimidazole, while the amount of imidazole 3-oxide is increased with the increased field strength along the opposite orientation. In the fields along the orientation consistent with the dipole moment, the electrostatic potentials and their variances "abnormally" increase for the transition states with the N→O bond in comparison with those in no field (they decrease generally), which enhances the nucleophilicity of the coordination O atom and the electrophilicity of the activated H atom. The analyses of the AIM (atoms in molecules) and NICS (nucleus-independent chemical shift) were used to explain the above anomaly. Graphical Abstract Electrostatic potentials and their variances "abnormally" increase in the external electric field, which greatly affects tautomeric conversion.
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Affiliation(s)
- Yong Wang
- School of Chemical Engineering and Technology, North University of China, Shanxi Taiyuan, 030051, China
| | - Fu-de Ren
- School of Chemical Engineering and Technology, North University of China, Shanxi Taiyuan, 030051, China.
| | - Duan-Lin Cao
- School of Chemical Engineering and Technology, North University of China, Shanxi Taiyuan, 030051, China
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Nikitina PA, Bormotov NI, Shishkina LN, Tikhonov AY, Perevalov VP. Synthesis and antiviral activity of 1-hydroxy-2-(2-hydroxyphenyl)imidazoles against vaccinia virus. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2467-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Rossi R, Angelici G, Casotti G, Manzini C, Lessi M. Catalytic Synthesis of 1,2,4,5‐Tetrasubstituted 1
H
‐Imidazole Derivatives: State of the Art. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801381] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Renzo Rossi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gaetano Angelici
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gianluca Casotti
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Chiara Manzini
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Marco Lessi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
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Nikitina PA, Koldaeva TY, Mityanov VS, Miroshnikov VS, Basanova EI, Perevalov VP. Prototropic Tautomerism and Some Features of the IR Spectra of 2-(3-Chromenyl)-1-hydroxyimidazoles. Aust J Chem 2019. [DOI: 10.1071/ch19222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Prototropic tautomerism of 2-(3-chromenyl)-1-hydroxyimidazoles with various substituents in the chromenyl moiety (1-hydroxyimidazole – imidazole N-oxide) was studied by means of 1H NMR and IR spectroscopies. It was demonstrated that in d6-DMSO solution, the substituents in the chromenyl ring have no influence on the equilibrium shift: the prevalence of the N-oxide tautomeric form is caused by the possibility of stabilization of the planar structure with the help of the carbonyl group in position 5 of the imidazole ring. In contrast, in the solid state the general effect of the chromenyl substituent in position 2 of imidazole plays the leading role. The increase in general electron-withdrawing effect of the chromenyl moiety leads to the prevalence of the imidazole N-oxide tautomer.
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Vargas E, Echeverri F, Upegui YA, Robledo SM, Quiñones W. Hydrazone Derivatives Enhance Antileishmanial Activity of Thiochroman-4-ones. Molecules 2017; 23:E70. [PMID: 29286346 PMCID: PMC6017792 DOI: 10.3390/molecules23010070] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/14/2017] [Accepted: 12/22/2017] [Indexed: 01/30/2023] Open
Abstract
Cutaneous leishmaniasis (CL) is a neglected tropical disease, which causes severe skin lesions. Due to the lack of effective vaccines, and toxicity or reduced effectiveness of available drugs in addition to complex and prolonged treatments, there is an urgent need to develop alternatives for the treatment for CL with different mechanisms of action. In our effort to search for new promising hits against Leishmania parasites we prepared 18 acyl hydrazone derivatives of thiochroman-4-ones. Compounds were evaluated for their in vitro antileishmanial activity against the intracellular amastigote form of Leishmania panamensis and cytotoxic activity against human monocytes (U-937 ATCC CRL-1593.2). Our results show that derivatization of the thiochroman-4-ones with acyl hydrazones significantly enhances the antileishmanial activity. Among the compounds tested semicarbazone and thiosemicarbazone derivatives of thioflavanone 19 and 20 displayed the highest antileishmanial activities, with EC50 values of 5.4 and 5.1 µM and low cytotoxicities (100.2 and 50.1 µM respectively), resulting in higher indexes of selectivity (IS).
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Affiliation(s)
- Esteban Vargas
- Química Orgánica de Productos Naturales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No. 52-21, Medellín A. A 1226, Colombia.
| | - Fernando Echeverri
- Química Orgánica de Productos Naturales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No. 52-21, Medellín A. A 1226, Colombia.
| | - Yulieth A Upegui
- PECET-Programa de Estudio y Control de Enfermedades Tropicales. Facultad de Medicina, Universidad de Antioquia, Calle 70 No. 52-21, Medellín A. A 1226, Colombia.
| | - Sara M Robledo
- PECET-Programa de Estudio y Control de Enfermedades Tropicales. Facultad de Medicina, Universidad de Antioquia, Calle 70 No. 52-21, Medellín A. A 1226, Colombia.
| | - Wiston Quiñones
- Química Orgánica de Productos Naturales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No. 52-21, Medellín A. A 1226, Colombia.
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da Silva AM, Araújo-Silva L, Bombaça ACS, Menna-Barreto RFS, Rodrigues-Santos CE, Buarque Ferreira AB, de Castro SL. Synthesis and biological evaluation of N-alkyl naphthoimidazoles derived from β-lapachone against Trypanosoma cruzi bloodstream trypomastigotes. MEDCHEMCOMM 2017; 8:952-959. [PMID: 30108809 PMCID: PMC6071937 DOI: 10.1039/c7md00069c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 02/20/2017] [Indexed: 11/21/2022]
Abstract
The QSAR study of 34 2-aryl-naphthoimidazoles screened so far revealed that σi is the most important factor for their lytic activity on the bloodstream trypomastigote forms of T. cruzi, the etiologic agent of Chagas disease. Based on this result, 16 new N-alkyl-naphthoimidazoles derived from 6,6-dimethyl-3,4,5,6-tetrahydrobenzo[7,8]chromene[5,6-d]imidazole (the product of the reaction of β-lapachone with paraformaldehyde) by its reaction with halo-alkanes were prepared and evaluated against the parasite and peritoneal macrophages. The N1-n-hexyl and N3-n-hexyl naphthoimidazoles were 2.2 and 3.2 times more active than the standard drug benznidazole with selectivity indices of 2.7 and 13.4, respectively.
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Affiliation(s)
- Ari Miranda da Silva
- Programa de Pós-Graduação em Química , UFRRJ , 23890-000 , Seropédica , RJ , Brazil
- Instituto de Pesquisas em Produtos Naturais , UFRJ , 21944-970 , Rio de Janeiro , RJ , Brazil
| | | | - Ana Cristina S Bombaça
- Laboratório de Biologia Celular , Instituto Oswaldo Cruz , FIOCRUZ , 21045-900 , Rio de Janeiro , RJ , Brazil . ; Tel: +55 21 25621391
| | - Rubem F S Menna-Barreto
- Laboratório de Biologia Celular , Instituto Oswaldo Cruz , FIOCRUZ , 21045-900 , Rio de Janeiro , RJ , Brazil . ; Tel: +55 21 25621391
| | | | | | - Solange L de Castro
- Laboratório de Biologia Celular , Instituto Oswaldo Cruz , FIOCRUZ , 21045-900 , Rio de Janeiro , RJ , Brazil . ; Tel: +55 21 25621391
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Methods of synthesis and physicochemical properties of 1-hydroxyimidazoles, imidazole 3-oxides, and their benzoannulated analogs. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2030-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Elias PR, Coelho GS, Xavier VF, Sales Junior PA, Romanha AJ, Murta SMF, Carneiro CM, Camilo NS, Hilário FF, Taylor JG. Synthesis of Xylitan Derivatives and Preliminary Evaluation of in Vitro Trypanocidal Activity. Molecules 2016; 21:molecules21101342. [PMID: 27735872 PMCID: PMC6273285 DOI: 10.3390/molecules21101342] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 09/26/2016] [Accepted: 09/30/2016] [Indexed: 01/25/2023] Open
Abstract
A series of novel xylitan derivatives derived from xylitol were synthesized using operationally simple procedures. A xylitan acetonide was the key intermediate used to prepare benzoate, arylsulfonate esters and 1,2,3-triazole derivatives of xylitan. These compounds were evaluated for their in vitro anti-Trypanosoma cruzi activity against trypomastigote and amastigote forms of the parasite in T. cruzi-infected cell lineages. Benznidazole was used as positive control against T. cruzi and cytotoxicity was determined in mammalian L929 cells. The arylsulfonate xylitan derivative bearing a nitro group displayed the best activity of all the compounds tested, and was slightly more potent than the reference drug benznidazole. The importance of the isopropylidene ketal moiety was established and the greater lipophilicity of these compounds suggests enhancement in cell penetration.
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Affiliation(s)
- Paula Regina Elias
- Chemistry Department, ICEB, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil.
| | - Gleicekelly Silva Coelho
- Chemistry Department, ICEB, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil.
| | - Viviane Flores Xavier
- Chemistry Department, ICEB, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil.
- Centro de Pesquisas René Rachou, A Fundação Oswaldo Cruz/FIOCRUZ, 30190-002 Belo Horizonte, MG, Brazil.
| | | | - Alvaro José Romanha
- Centro de Pesquisas René Rachou, A Fundação Oswaldo Cruz/FIOCRUZ, 30190-002 Belo Horizonte, MG, Brazil.
| | | | - Claudia Martins Carneiro
- Immunopathology Laboratory, NUPEB, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, 35400-000 Ouro Preto-MG, Brazil.
| | - Nilton Soares Camilo
- Instituto de Química, Universidade Estadual de Campinas, C.P. 6154, CEP. 13084-971 Campinas, SP, Brazil.
| | - Flaviane Francisco Hilário
- Chemistry Department, ICEB, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil.
| | - Jason Guy Taylor
- Chemistry Department, ICEB, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil.
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Golodukhina SV, Baleeva NS, Mineyev KS, Baranov MS. Reversible condensation of 4-arylidene-1,2-dimethyl-1H-imidazol-5(4H)-ones with aromatic acyl chlorides. Chem Heterocycl Compd (N Y) 2015. [DOI: 10.1007/s10593-015-1802-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Nikitina PA, Peregudov AS, Koldaeva TY, Kuz'mina LG, Adiulin EI, Tkach II, Perevalov VP. Synthesis and study of prototropic tautomerism of 2-(2-hydroxyphenyl)-1-hydroxyimidazoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Cardoso LNF, Bispo MLF, Kaiser CR, Wardell JL, Wardell SMSV, Lourenço MCS, Bezerra FAFM, Soares RPP, Rocha MN, de Souza MVN. Anti-tuberculosis evaluation and conformational study of N-acylhydrazones containing the thiophene nucleus. Arch Pharm (Weinheim) 2014; 347:432-48. [PMID: 24616002 DOI: 10.1002/ardp.201300417] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 12/10/2013] [Accepted: 12/11/2013] [Indexed: 01/01/2023]
Abstract
A series of N-acylhydrazonyl-thienyl derivatives (compounds 2 and 3), mainly of the type 2-(aryl-CH=N-NHCOCH2 )-thiene (2: aryl = substituted-phenyl; 3: aryl = heteroaryl) were evaluated against Mycobacterium tuberculosis. Particularly active compound was 3 (heteroaryl = 5-nitrothien-2-yl or 5-nitrofuran-2-yl) with MIC values of 8.5 and 9.0 μM, respectively. Moderately active compounds were compound 3 (heteroaryl = pyridin-2-yl) and compound 2 containing aryl = 2- or 4-hydroxyphenyl groups, with MIC values between 170 and 408 μM. Compound 2 containing OMe, H, F, Cl, Br, CN, and NO2 substituents and compound 3 (heteroaryl = furan-2-yl, thien-2-yl, pyrrol-2-yl, imidazol-2-yl, pyridin-3-yl, and pyridin-4-yl) were all inactive. Clearly, there is no correlation of activity with the electronic effects of the substituents. The activities suggest different modes of biological action of the compounds having nitro-heteroaryl groups, on the one hand, and the 2-hydroxyphenyl or pyridin-2-yl substituents, on the other hand. Compounds having 2- or 4-hydroxyphenyl, 2-hydroxy-5-nitrophenyl, or 4-hydroxy-3-chlorophenyl were less cytotoxic than ethambutol. It is important to notice that compound 3 (aryl = 5-NO2 -furan-2-yl) exhibited a promising therapeutic index (TI = 1093.90), with a value 4.4 less than that of ethambutol. Compounds 2 and 3 exist in DMSO or MeOD solutions as mixtures of EC(O)N /EC=N and ZC(O)N /EC=N conformers.
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Affiliation(s)
- Laura N F Cardoso
- Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos-Far Manguinhos, Manguinhos, Rio de Janeiro, Brazil; Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
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17
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Fonseca-Berzal C, Rojas Ruiz FA, Escario JA, Kouznetsov VV, Gómez-Barrio A. In vitro phenotypic screening of 7-chloro-4-amino(oxy)quinoline derivatives as putative anti- Trypanosoma cruzi agents. Bioorg Med Chem Lett 2014; 24:1209-13. [DOI: 10.1016/j.bmcl.2013.12.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 12/17/2013] [Accepted: 12/18/2013] [Indexed: 01/15/2023]
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