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Barreiro-Costa O, Quiroga Lozano C, Muñoz E, Rojas-Silva P, Medeiros A, Comini MA, Heredia-Moya J. Evaluation of the Anti- Leishmania mexicana and - Trypanosoma brucei Activity and Mode of Action of 4,4'-(Arylmethylene)bis(3-methyl-1-phenyl-1 H-pyrazol-5-ol). Biomedicines 2022; 10:biomedicines10081913. [PMID: 36009460 PMCID: PMC9405596 DOI: 10.3390/biomedicines10081913] [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: 05/23/2022] [Accepted: 07/07/2022] [Indexed: 11/23/2022] Open
Abstract
Trypanosomiasis and leishmaniasis are neglected infections caused by trypanosomatid parasites. The first-line treatments have many adverse effects, high costs, and are prone to resistance development, hence the necessity for new chemotherapeutic options. In line with this, twenty five 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) derivatives were synthesized and evaluated in vitro for their anti-trypanosomatid activity. Ten and five compounds from this series showed IC50 ≤ 10 µM against the promastigote and the bloodstream stage of Leishmania mexicana and Trypanosoma brucei brucei, respectively. Overall, derivatives with pyrazole rings substituted with electron-withdrawing groups proved more active than those with electron-donating groups. The hits proved moderately selective towards L. mexicana and T. brucei (selectivity index, SI, compared to murine macrophages = 5−26). The exception was one derivative displaying an SI (>111−189) against T. brucei that surpassed, by >6-fold, the selectivity of the clinical drug nifurtimox (SI = 13−28.5). Despite sharing a common scaffold, the hits differed in their mechanism of action, with halogenated derivatives inducing a rapid and marked intracellular oxidative milieu in infective T. brucei. Notably, most of the hits presented better absorption, distribution, metabolism, and excretion (ADME) properties than the reference drugs. Several of the bioactive molecules herein identified represent a promising starting point for further improvement of their trypanosomatid potency and selectivity.
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Affiliation(s)
- Olalla Barreiro-Costa
- Center for Biomedical Research (CENBIO), Eugenio Espejo College of Health Sciences, Universidad UTE, Quito 170527, Ecuador
| | - Cristina Quiroga Lozano
- Laboratory Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Erika Muñoz
- Instituto de Microbiología y Programa de Maestría en Microbiología, Colegio de Ciencias Biológicas y Ambientales COCIBA, Universidad San Francisco de Quito, Quito 170901, Ecuador
| | - Patricio Rojas-Silva
- Center for Biomedical Research (CENBIO), Eugenio Espejo College of Health Sciences, Universidad UTE, Quito 170527, Ecuador
- Instituto de Microbiología y Programa de Maestría en Microbiología, Colegio de Ciencias Biológicas y Ambientales COCIBA, Universidad San Francisco de Quito, Quito 170901, Ecuador
| | - Andrea Medeiros
- Laboratory Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo 11800, Uruguay
| | - Marcelo A. Comini
- Laboratory Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
- Correspondence: (M.A.C.); (J.H.-M.)
| | - Jorge Heredia-Moya
- Center for Biomedical Research (CENBIO), Eugenio Espejo College of Health Sciences, Universidad UTE, Quito 170527, Ecuador
- Correspondence: (M.A.C.); (J.H.-M.)
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Farh MK, Gruschwitz FV, Ziegenbalg N, Abul-Futouh H, Görls H, Weigand W, Brendel JC. Dual Function of β-hydroxy Dithiocinnamic Esters: RAFT Agent and Ligand for Metal Complexation. Macromol Rapid Commun 2022; 43:e2200428. [PMID: 35751415 DOI: 10.1002/marc.202200428] [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: 05/05/2022] [Revised: 06/12/2022] [Indexed: 11/06/2022]
Abstract
The reversible addition-fragmentation chain-transfer (RAFT) process has become a versatile tool for the preparation of defined polymers tolerating a large variety of functional groups. Several dithioesters, trithiocarbonates, xanthates, or dithiocarbamates have been developed as effective chain transfer agents (CTA), but only few examples have been reported, where the resulting end groups are directly considered for a secondary use besides controlling the polymerization. We here demonstrate that β-hydroxy dithiocinnamic esters represent a hitherto overlooked class of materials, which were originally designed for the complexation of transition metals but might as well act as reversible CTA. Modified with a suitable leaving group (R-group), these vinyl conjugated dithioesters indeed provide reasonable control over the polymerization of acrylates, acrylamides, or styrene via the RAFT process. Kinetic studies revealed linear evolutions of molar mass with conversion, while different substituents on the aromatic unit had only a minor influence. Block extensions prove the livingness of the polymer chains, although extended polymerization times may lead to side reactions. The resulting dithiocinnamic ester end groups are still able to form complexes with platinum, which verifies that the structural integrity of the end group is maintained. These findings open a versatile new route to tailor-made polymer bound metal complexes. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Micheal K Farh
- Department of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany.,Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71515, Egypt.,Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa, 13133, Jordan
| | - Franka V Gruschwitz
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Nicole Ziegenbalg
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
| | - Hassan Abul-Futouh
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa, 13133, Jordan
| | - Helmar Görls
- Department of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany
| | - Wolfgang Weigand
- Department of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Johannes C Brendel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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Yadav CL, Anamika, Rajput G, Kumar K, Drew MGB, Singh N. Effect of Substituents on the Crystal Structures, Optical Properties, and Catalytic Activity of Homoleptic Zn(II) and Cd(II) β-oxodithioester Complexes. Inorg Chem 2020; 59:11417-11431. [PMID: 32799477 DOI: 10.1021/acs.inorgchem.0c01195] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Five novel zinc(II) and cadmium(II) β-oxodithioester complexes, [Zn(L1)2] (1), [Zn(L2)2]n (2), [Zn(L3)2]n (3) [Cd(L1)2]n (4), [Cd(L2)2]n (5), with β-oxodithioester ligands, where L1 = 3-(methylthio)-1-(thiophen-2-yl)-3-thioxoprop-1-en-1-olate, L2 = 3-(methylthio)-1-(pyridin-3-yl)-3-thioxoprop-1-en-1-olate, and L3 = 3-(methylthio)-1-(pyridin-4-yl)-3-thioxoprop-1-en-1-olate, were synthesized and characterized by elemental analysis, IR, UV-vis, and NMR spectroscopy (1H and 13C{1H}). The solid-state structures of all complexes were ascertained by single-crystal X-ray crystallography. The β-oxodithioester ligands are bonded to Zn(II)/Cd(II) metal ions in an O∧S and N chelating/chelating-bridging fashion leading to the formation of 1D (in 2-4) and 2D (in 5) coordination polymeric structures, but complex 1 was obtained as a discrete tetrahedral molecule. Complex 4 crystallizes in the C2 chiral space group and has been studied using circular dichroism (CD) spectroscopy. The multidimensional assemblies in these complexes are stabilized by many important noncovalent C-H···π (ZnOSC3, chelate), π···π, C-H···π, and H···H interactions. The catalytic activities of 1-5 in reactions involving C-C and C-O bond formation have been studied, and the results indicated that complex 3 can be efficiently utilized as a heterogeneous bifunctional catalyst for the Knoevenagel condensation and multicomponent reactions to develop biologically important organic molecules. The luminescent properties of complexes were also studied. Interestingly, zinc complexes 1-3 showed strong lumniscent emission in the solid state, whereas cadmium complexes 4 and 5 exhibited bright luminescent emission in the solution phase. The semiconducting behavior of the complexes was studied by solid-state diffuse reflectance spectra (DRS), which showed optical band gaps in the range of 2.49-2.62 eV.
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Affiliation(s)
- Chote Lal Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anamika
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Gunjan Rajput
- Department of Chemistry, RCU Government Post Graduate College, Uttarkashi 249193, India
| | - Kamlesh Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Michael G B Drew
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Nanhai Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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Yadav CL, Rajput G, Bisht KK, Drew MGB, Singh N. Spontaneous Resolution upon Crystallization and Preferential Induction of Chirality in a Discrete Tetrahedral Zinc(II) Complex Comprised of Achiral Precursors. Inorg Chem 2019; 58:14449-14456. [DOI: 10.1021/acs.inorgchem.9b01934] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chote Lal Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Gunjan Rajput
- Department of Chemistry, Ram Chandra Uniyal Government Post Graduate College, Uttarkashi 249193, India
| | - Kamal Kumar Bisht
- Department of Chemistry, Ram Chandra Uniyal Government Post Graduate College, Uttarkashi 249193, India
| | - Michael G. B. Drew
- Department of Chemistry, University of Reading, Whiteknights
Campus, Reading RG6 6AD, U.K
| | - Nanhai Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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Kumari K, Singh AS, Manar KK, Yadav CL, Tiwari VK, Drew MGB, Singh N. Catalytic activity of new heteroleptic [Cu(PPh3)2(β-oxodithioester)] complexes: click derived triazolyl glycoconjugates. NEW J CHEM 2019. [DOI: 10.1039/c8nj05075a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Highly efficient and reusable precatalysts of Cu(i) β-oxodithioester PPh3 complexes for the synthesis of triazolyl glycoconjugates under “click” conditions.
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Affiliation(s)
- Kavita Kumari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Anoop S. Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Krishna K. Manar
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Chote Lal Yadav
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Vinod K. Tiwari
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Michael G. B. Drew
- Department of Chemistry
- University of Reading
- Whiteknights
- Reading RG6 6AD
- UK
| | - Nanhai Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
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Ong YC, Roy S, Andrews PC, Gasser G. Metal Compounds against Neglected Tropical Diseases. Chem Rev 2018; 119:730-796. [DOI: 10.1021/acs.chemrev.8b00338] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yih Ching Ong
- Laboratory for Inorganic Chemical Biology, Chimie ParisTech, PSL University, 11 rue Pierre et Marie Curie, F-75005 Paris, France
| | - Saonli Roy
- Department of Chemistry, University of Zurich, Wintherthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Philip C. Andrews
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia
| | - Gilles Gasser
- Laboratory for Inorganic Chemical Biology, Chimie ParisTech, PSL University, 11 rue Pierre et Marie Curie, F-75005 Paris, France
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Yadav CL, Manar KK, Yadav MK, Tiwari N, Singh RK, Drew MG, Singh N. Synthesis, crystal structures and properties of new homoleptic Ni(II)/Pd(II) β-oxodithioester chelates. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Yadav MK, Maurya AK, Rajput G, Manar KK, Vinayak M, Drew MGB, Singh N. Synthesis, characterization, DNA binding and cleavage activity of homoleptic zinc(II) β-oxodithioester chelate complexes. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1377835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Manoj Kumar Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Akhilendra Kumar Maurya
- Biochemistry & Molecular Biology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Gunjan Rajput
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Krishna Kumar Manar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Manjula Vinayak
- Biochemistry & Molecular Biology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | | | - Nanhai Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
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Yadav MK, Maurya AK, Rajput G, Manar KK, Vinayak M, Drew MGB, Singh N. New planar trans-copper(II) β-dithioester chelate complexes: synthesis, characterization, anticancer activity and DNA-binding/cleavage studies. J COORD CHEM 2017. [DOI: 10.1080/00958972.2016.1275589] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Manoj Kumar Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Akhilendra Kumar Maurya
- Biochemistry & Molecular Biology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Gunjan Rajput
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Krishna Kumar Manar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Manjula Vinayak
- Biochemistry & Molecular Biology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, India
| | | | - Nanhai Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
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Manar KK, Yadav CL, Tiwari N, Singh RK, Kumar A, Drew MGB, Singh N. Effect of functionalities on the crystal structures of new zinc(ii) dithiocarbamates: a combined anti-leishmanial and thermal decomposition study. CrystEngComm 2017. [DOI: 10.1039/c7ce00211d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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