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Kumar N, Goel N. Recent development of imidazole derivatives as potential anticancer agents. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
Cancer, one of the key health problems globally, is a group of related diseases that share a number of characteristics primarily the uncontrolled growth and invasive to surrounding tissues. Chemotherapy is one of the ways for the treatment of cancer which uses one or more anticancer agents as per chemotherapy regimen. Limitations of most anticancer drugs due to a variety of reasons such as serious side effects, drug resistance, lack of sensitivity and efficacy etc. generate the necessity towards the designing of novel anticancer lead molecules. In this regard, the synthesis of biologically active heterocyclic molecules is an appealing research area. Among heterocyclic compounds, nitrogen containing heterocyclic molecules has fascinated tremendous consideration due to broad range of pharmaceutical activity. Imidazoles, extensively present in natural products as well as synthetic molecules, have two nitrogen atoms, and are five membered heterocyclic rings. Because of their countless physiological and pharmacological characteristics, medicinal chemists are enthused to design and synthesize new imidazole derivatives with improved pharmacodynamic and pharmacokinetic properties. The aim of this present chapter is to discuss the synthesis, chemistry, pharmacological activity, and scope of imidazole-based molecules in anticancer drug development. Finally, we have discussed the current challenges and future perspectives of imidazole-based derivatives in anticancer drug development.
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Affiliation(s)
- Naresh Kumar
- Department of Biosciences and Biomedical Engineering , Indian Institute of Technology Indore , Indore , Madhya Pradesh 453552 , India
| | - Nidhi Goel
- Department of Chemistry , Institute of Science, Banaras Hindu University , Varanasi , Uttar Pradesh 221005 , India
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Luo XQ, Liu QR, Han YJ, Xue LW. Synthesis, crystal structure and biological activity of a cobalt(III) complex derived from 6,6’-(2-hydroxypropane-1,3-diyl)bis(azanediyl) bis(methylene)bis(2-bromo-4-chlorophenol). INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1732417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Xiao-Qiang Luo
- School of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, Henan, P.R. China
- Henan Key Laboratory of Research for Central Plains Ancient Ceramics, Pingdingshan University, Pingdingshan, Henan, P.R. China
| | - Qiao-Ru Liu
- School of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, Henan, P.R. China
| | - Yong-Jun Han
- School of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, Henan, P.R. China
| | - Ling-Wei Xue
- School of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, Henan, P.R. China
- Henan Key Laboratory of Research for Central Plains Ancient Ceramics, Pingdingshan University, Pingdingshan, Henan, P.R. China
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de Mello MVP, Cebrián-Torrejón G, Pereira JR, dos Santos Moreira C, Gomes CBDSMR, da Rocha DR, de Souza Fagundes EM, Ferreira GB, Lanznaster M. Evaluation of 5-hydroxy-1,4-naphthoquinone-cobalt(III) complexes for hypoxia-activated drug delivery. J Inorg Biochem 2019; 199:110756. [DOI: 10.1016/j.jinorgbio.2019.110756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/23/2019] [Accepted: 06/24/2019] [Indexed: 12/30/2022]
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Li Y, Xu L, Duan M, Zhang B, Wang Y, Guan Y, Wu J, Jing C, You Z. Syntheses, characterization, crystal structures and Jack bean urease inhibitory activities of ZnII, CoII/III and NiII complexes derived from reduced Schiff base ligand. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Castro LC, Jaconiano YR, Evangelista TCS, Ferreira SB, Scarpellini M. Synthesis and characterization of new galactosylated-based N 2O-donors tridentate ligands. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1599953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Lidiane C. Castro
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yasmim R. Jaconiano
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tereza C. S. Evangelista
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sabrina B. Ferreira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marciela Scarpellini
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Synthesis and Characterization of trans-Dichlorotetrakis(imidazole)cobalt(III) Chloride: A New Cobalt(III) Coordination Complex with Potential Prodrug Properties. Bioinorg Chem Appl 2018; 2018:4560757. [PMID: 30254666 PMCID: PMC6140278 DOI: 10.1155/2018/4560757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/31/2018] [Indexed: 11/17/2022] Open
Abstract
Numerous therapies for the treatment of cancer have been explored with increasing evidence that the use of metal-containing compounds could prove advantageous as anticancer therapeutics. Previous works on Ru(III) complexes suggest that structurally similar Co(III) complexes may provide good alternative, low-cost, effective prodrugs. Herein, a new complex, trans-[Co(imidazole)4Cl2]Cl (2), has been synthesized in high yields utilizing ligand exchange under refluxing conditions. The structure of 2 has been characterized by elemental analysis, 1H and 13C·NMR, ESI-MS, CV, and UV-Vis. The ability of 2 to become reduced in the presence of ascorbic acid was probed demonstrating the likely reduction of the Co(III) metal center to Co(II). In addition, preliminary cell line testing on 2 shows a lack of cytotoxicity.
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Areas ES, Bronsato BJDS, Pereira TM, Guedes GP, Miranda FDS, Kümmerle AE, da Cruz AGB, Neves AP. Novel Co III complexes containing fluorescent coumarin-N-acylhydrazone hybrid ligands: Synthesis, crystal structures, solution studies and DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 187:130-142. [PMID: 28683368 DOI: 10.1016/j.saa.2017.06.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/05/2017] [Accepted: 06/24/2017] [Indexed: 06/07/2023]
Abstract
A series of new CoIII complexes of the type [Co(dien)(L1-L3)]ClO4 (1-3), containing fluorescent coumarin-N-acylhydrazonate hybrid ligands, (E)-N'-(1-(7-oxido-2-oxo-2H-chromen-3-yl)ethylidene)-4-R-benzohydrazonate [where R=H (L12-), OCH3 (L22-) or Cl (L32-)], were obtained and isolated in the low spin CoIII configuration. Single-crystal X-ray diffraction showed that the coumarin-N-acylhydrazones act as tridentate ligands in their deprotonated form (L2-). The cation (+1) complexes contain a diethylenetriamine (dien) as auxiliary ligand and their structures were calculated by DFT studies which were also performed for the CoII (S=1/2 and S=3/2) configurations. The LS CoII (S=1/2) concentrated the spin density on the O-Co-O axis while the HS CoII (S=3/2) exhibited a broad spin density distribution around the metallic center. Cyclic voltammetry studies showed that structural modifications made in the L2- ligands caused a slight influence on the electronic density of the metal center, and the E1/2 values for the CoIII/CoII redox couple increased following the electronic effect of the R-substituent, in the order: 2 (R=OCH3)<1 (R=H)<3 (R=Cl). The theoretical redox potentials (E°) of the process CoIII→CoII were calculated for both CoII spin states (S=1/2 and S=3/2) and a better correlation was found for CoIII→CoII (S=1/2), compared with experimental values vs SHE (E°calc=-0.37, -0.36 and -0.32V vs E°exp.=-0.371, -0.406 and -0.358V, for 1-3 respectively). Complexes 1-3 exhibited a very intense absorption band around 470nm, assigned by DFT calculations as π-π* transitions from the delocalized coumarin-N-acylhydrazone system. 1-3 were very stable in MeOH for several days. Likewise, 1-3 were stable in phosphate buffer containing sodium ascorbate after 15h, which was attributed to the high chelate effect and σ-donor ability of the L2- and dien ligands.
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Affiliation(s)
- Esther S Areas
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Bruna Juliana da S Bronsato
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Thiago M Pereira
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Guilherme P Guedes
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Fábio da S Miranda
- Instituto de Química, Universidade Federal Fluminense, 24020-150 Niterói, RJ, Brazil
| | - Arthur E Kümmerle
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Antônio G B da Cruz
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil
| | - Amanda P Neves
- Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Campus de Seropédica, BR-465 Km 7, 23890-000, Seropédica, RJ, Brazil.
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Synthesis, characterization and biological activity of gallium(III) complexes with non-symmetrical NO-donor Schiff bases. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.12.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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da Silva AFM, Vital RDU, Martins DDL, da Rocha DR, Ferreira GB, Camargos Resende JAL, Lanznaster M. Investigation of cobalt(iii)–TPA complexes as potential bioreductively activated carriers for naphthoquinone-based drugs. NEW J CHEM 2017. [DOI: 10.1039/c7nj03072j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Differently from CH3, halogens as substituents foster incorporation of methoxide into NQs upon complexation.
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Azido- and chlorido-cobalt complex as carrier-prototypes for antitumoral prodrugs. J Inorg Biochem 2016; 157:104-13. [DOI: 10.1016/j.jinorgbio.2016.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 12/11/2015] [Accepted: 01/25/2016] [Indexed: 11/24/2022]
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11
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de Souza ICA, Faro LV, Pinheiro CB, Gonzaga DTG, da Silva FDC, Ferreira VF, Miranda FDS, Scarpellini M, Lanznaster M. Investigation of cobalt(iii)-triazole systems as prototypes for hypoxia-activated drug delivery. Dalton Trans 2016; 45:13671-4. [DOI: 10.1039/c6dt02456d] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel cobalt(iii)-triazole system was developed for hypoxia-activated drug delivery with an [O2]-dependent reduction to cobalt(ii) followed by ligand dissociation.
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Bustamante FL, Miranda FS, Castro FA, Resende JA, Pereira MD, Lanznaster M. A study on the properties and reactivity of naphthoquinone–cobalt(III) prototypes for bioreductive prodrugs. J Inorg Biochem 2014; 132:37-44. [DOI: 10.1016/j.jinorgbio.2013.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 11/14/2013] [Accepted: 11/19/2013] [Indexed: 12/17/2022]
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13
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Jacobs DL, Chan BC, O'Connor AR. N-[2-(Pyridin-2-yl)ethyl]-derivatives of methane-, benzene- and toluenesulfonamide: prospective ligands for metal coordination. Acta Crystallogr C 2013; 69:1397-401. [PMID: 24192196 DOI: 10.1107/s0108270113025341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 09/12/2013] [Indexed: 11/10/2022] Open
Abstract
The molecular and supramolecular structures are reported of N-[2-(pyridin-2-yl)ethyl]methanesulfonamide, C8H12N2O2S, (I), N-[2-(pyridin-2-yl)ethyl]benzenesulfonamide, C13H14N2O2S, (II), and N-[2-(pyridin-2-yl)ethyl]toluenesulfonamide, C14H16N2O2S, (III). Although (II) and (III) are almost structurally identical, the N(amide)-C(ethyl)-C(ethyl)-C(pyridinyl) torsion angles for (I) and (II) are more closely comparable, with magnitudes of 175.37 (15)° for (I) and 169.04 (19)° for (II). This angle decreases dramatically with an additional methyl group in the para position of the sulfonamide substituent, resulting in a value of 62.9 (2)° for (III). In each of the three compounds there is an N-H...N hydrogen bond between the sulfonamide of one molecule and the pyridine N atom of a neighbor. Compound (I) forms hydrogen-bonded dimers, (II) uses its hydrogen bonding to connect supramolecular layers, and the hydrogen bonding of (III) connects linear chains to form layers. For arene-substituted (II) and (III), the different conformations afforded by the variable dihedral angles promote intermolecular π-π stacking in the benzene-substituted structure (II), but distorted intramolecular T-shaped π-stacking in the toluene-substituted structure (III), with a centroid-to-centroid distance of 4.9296 (10) Å.
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Affiliation(s)
- Danielle L Jacobs
- Department of Chemistry, Biochemistry and Physics, Rider University, 2083 Lawrenceville Road, Lawrenceville, NJ 08648, USA
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Zhang L, Peng XM, Damu GLV, Geng RX, Zhou CH. Comprehensive review in current developments of imidazole-based medicinal chemistry. Med Res Rev 2013; 34:340-437. [PMID: 23740514 DOI: 10.1002/med.21290] [Citation(s) in RCA: 482] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Imidazole ring is an important five-membered aromatic heterocycle widely present in natural products and synthetic molecules. The unique structural feature of imidazole ring with desirable electron-rich characteristic is beneficial for imidazole derivatives to readily bind with a variety of enzymes and receptors in biological systems through diverse weak interactions, thereby exhibiting broad bioactivities. The related research and developments of imidazole-based medicinal chemistry have become a rapidly developing and increasingly active topic. Particularly, numerous imidazole-based compounds as clinical drugs have been extensively used in the clinic to treat various types of diseases with high therapeutic potency, which have shown the enormous development value. This work systematically gives a comprehensive review in current developments of imidazole-based compounds in the whole range of medicinal chemistry as anticancer, antifungal, antibacterial, antitubercular, anti-inflammatory, antineuropathic, antihypertensive, antihistaminic, antiparasitic, antiobesity, antiviral, and other medicinal agents, together with their potential applications in diagnostics and pathology. It is hoped that this review will be helpful for new thoughts in the quest for rational designs of more active and less toxic imidazole-based medicinal drugs, as well as more effective diagnostic agents and pathologic probes.
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Affiliation(s)
- Ling Zhang
- Laboratory of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China
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Bustamante FLS, Metello JM, de Castro FAV, Pinheiro CB, Pereira MD, Lanznaster M. Lawsone Dimerization in Cobalt(III) Complexes toward the Design of New Prototypes of Bioreductive Prodrugs. Inorg Chem 2013; 52:1167-9. [DOI: 10.1021/ic302175t] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Francisco L. S. Bustamante
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ,
Brazil
| | - Julia M. Metello
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ,
Brazil
| | - Frederico A. V. de Castro
- Instituto de Quimica, Departamento de Bioquímica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carlos B. Pinheiro
- Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Marcos D. Pereira
- Instituto de Quimica, Departamento de Bioquímica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Mauricio Lanznaster
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ,
Brazil
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de Almeida VR, Xavier FR, Osório REHMB, Bessa LM, Schilling EL, Costa TG, Bortolotto T, Cavalett A, Castro FAV, Vilhena F, Alves OC, Terenzi H, Eleutherio ECA, Pereira MD, Haase W, Tomkowicz Z, Szpoganicz B, Bortoluzzi AJ, Neves A. In vitro and in vivo activity of a new unsymmetrical dinuclear copper complex containing a derivative ligand of 1,4,7-triazacyclononane: catalytic promiscuity of [Cu2(L)Cl3]. Dalton Trans 2013; 42:7059-73. [DOI: 10.1039/c3dt33046j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Tomco D, Xavier FR, Allard MM, Verani CN. Probing chemical reduction in a cobalt(III) complex as a viable route for the inhibition of the 20S proteasome. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.06.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Graf N, Lippard SJ. Redox activation of metal-based prodrugs as a strategy for drug delivery. Adv Drug Deliv Rev 2012; 64:993-1004. [PMID: 22289471 DOI: 10.1016/j.addr.2012.01.007] [Citation(s) in RCA: 383] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 01/12/2012] [Accepted: 01/16/2012] [Indexed: 12/23/2022]
Abstract
This review provides an overview of metal-based anticancer drugs and drug candidates. In particular, we focus on metal complexes that can be activated in the reducing environment of cancer cells, thus serving as prodrugs. There are many reports of Pt and Ru complexes as redox-activatable drug candidates, but other d-block elements with variable oxidation states have a similar potential to serve as prodrugs in this manner. In this context are compounds based on Fe, Co, or Cu chemistry, which are also covered. A trend in the field of medicinal inorganic chemistry has been toward molecularly targeted, metal-based drugs obtained by functionalizing complexes with biologically active ligands. Another recent activity is the use of nanomaterials for drug delivery, exploiting passive targeting of tumors with nano-sized constructs made from Au, Fe, carbon, or organic polymers. Although complexes of all of the above mentioned metals will be described, this review focuses primarily on Pt compounds, including constructs containing nanomaterials.
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Indumathy R, Weyhermüller T, Rajapandian V, Subramanian V, Nair BU. An unusual oxidation of the imidazolyl ring in a cobalt terpyridyl complex: Crystal structure and photonuclease activity of the transformed cobalt terpyridyl complex. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.06.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tomco D, Schmitt S, Ksebati B, Heeg MJ, Dou QP, Verani CN. Effects of tethered ligands and of metal oxidation state on the interactions of cobalt complexes with the 26S proteasome. J Inorg Biochem 2011; 105:1759-66. [PMID: 22056177 PMCID: PMC3826156 DOI: 10.1016/j.jinorgbio.2011.09.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 09/07/2011] [Accepted: 09/08/2011] [Indexed: 01/18/2023]
Abstract
In this paper we report on the synthesis and characterization of three cobalt complexes described as [Co(II)(L(1))(2)] (1), [Co(II)(L(2))] (2), and [Co(III)(L(1))(2)]ClO(4)(3). These complexes contain the deprotonated forms of the [NN'O] tridentate ligand HL(1) and its newly synthesized [N(2)N'(2)O(2)] hexadentate counterpart H(2)L(2), namely, 2,4-diiodo-6-((pyridine-2-ylmethylamino)methyl)phenol and 6,6'-((ethane-1,2-diylbis((pyridin-2-ylmethyl) azanediyl))bis(methylene))bis(2,4-diiodophenol). Characterizations for 1-3 include electrospray ionization (ESI) spectrometry, infrared, and UV-visible spectroscopies, and elemental analyses. A detailed (1)H-NMR study was conducted for 3 and X-ray structural data was obtained for 2. The viability of this series as potential agents for proteasome inhibition and cell apoptotic induction involving PC-3 cancer cells is presented comparing the behavior of the untethered [NN'O](2) six-coordinate 1 and 3 and the tethered counterpart 2 with a 1:1 metal-to-ligand ratio. It is observed that the tethering in 2 decreases inhibition activity. When 1 and 3 are compared, the most inert, but redox-active, cobalt(III) species shows the highest chymotrypsin-like activity inhibition on purified proteasome and PC-3 cancer cells. A hypothesis based on the role of oxidation states for proteasome inhibition is offered.
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Affiliation(s)
- Dajena Tomco
- Department of Chemistry, Wayne State University, 5101 Cass Ave. Detroit, MI 48202, USA
| | - Sara Schmitt
- The Prevention Program, Ann Barbara Karmanos Cancer Institute, and Department of Pathology, School of Medicine, Wayne State University, Detroit, MI 4820, USA
| | - Bashar Ksebati
- Department of Chemistry, Wayne State University, 5101 Cass Ave. Detroit, MI 48202, USA
| | - Mary Jane Heeg
- Department of Chemistry, Wayne State University, 5101 Cass Ave. Detroit, MI 48202, USA
| | - Q. Ping Dou
- The Prevention Program, Ann Barbara Karmanos Cancer Institute, and Department of Pathology, School of Medicine, Wayne State University, Detroit, MI 4820, USA
| | - Cláudio N. Verani
- Department of Chemistry, Wayne State University, 5101 Cass Ave. Detroit, MI 48202, USA
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A series of mononuclear Co(III) complexes using tridentate N,O-donor ligands: Chemical properties and cytotoxicity activity. J Inorg Biochem 2011; 105:1767-73. [DOI: 10.1016/j.jinorgbio.2011.09.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 09/08/2011] [Accepted: 09/08/2011] [Indexed: 11/19/2022]
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22
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Synthesis and crystal structure of two new dinuclear cobalt(II) complexes interaction with HeLa cells. Eur J Med Chem 2011; 46:160-7. [DOI: 10.1016/j.ejmech.2010.10.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 10/20/2010] [Accepted: 10/29/2010] [Indexed: 11/20/2022]
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Gerasimchuk N, Barnes CL, Boaz D. Preparation, spectroscopic, and structural characterization of the first Co(III) cyanoxime complex: two polymorphs of fac-, tris(benzoylcyanoximato)cobalt(III), Co(BCO)3. J COORD CHEM 2010. [DOI: 10.1080/00958971003671801] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Nikolay Gerasimchuk
- a Department of Chemistry , Temple Hall 456, Missouri State University , Springfield, MO 65897, USA
| | - Charles L. Barnes
- b Department of Chemistry , University of Missouri–Columbia , Chemistry Building 125, Columbia, MO 65211, USA
| | - David Boaz
- a Department of Chemistry , Temple Hall 456, Missouri State University , Springfield, MO 65897, USA
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