1
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Rafikova K, Meriç N, Binbay NE, Okumuş V, Erdem K, Belyankova Y, Tursynbek S, Dauletbakov A, Bayazit S, Zolotareva D, Yerassyl K, Güzel R, Ocak YS, Aydemir M. Well designed iridium-phosphinite complexes: Biological assays, electrochemical behavior and density functional theory calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 318:124448. [PMID: 38763019 DOI: 10.1016/j.saa.2024.124448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/29/2024] [Accepted: 05/09/2024] [Indexed: 05/21/2024]
Abstract
Mononuclear phosphinite Iridium complexes based on ferrocene group have been prepared and characterized by various spectroscopic techniques. The complexes were subjected to cyclic voltammetry studies in order to determine the energies of HOMO and LUMO levels and to estimate their electrochemical and some electronic properties. Organic complex-based memory substrates were immobilized using TiO2-modified ITO electrodes, and the memory functions of phosphinite-based organic complexes were verified by chronoamperometry (CA) and open-circuit potential amperometry (OCPA). Extensive theoretical and experimental investigations were directed to gain a more profound understanding of the chemical descriptors and the diverse electronic transitions taking place within the iridium complexes, as well as their electrochemical characteristics. The quantum chemical calculations were carried out for the iridium complexes at the DFT/CAM-B3LYP level of theory in the gas phase. Furthermore, the antioxidant, antimicrobial, DNA binding, and DNA cleavage activities of the complexes were tested. Complex 2 exhibited the highest radical scavenging activity (67.5 ± 2.24 %) at 200.0 mg/L concentration. It was observed that the complexes formed an inhibition zone in the range of 8-15 mm against Gram + bacteria and in the range of 0-13 mm against Gram - bacteria. The agarose gel electrophoresis method was used to determine the DNA binding and DNA cleavage activities of the complexes. All of the tested complexes had DNA binding activity; however, complexes 1, 2, and 8 showed better binding activity than the others.
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Affiliation(s)
- Khadichakhan Rafikova
- Satbayev University, Institute of Chemical and Biological Technologies, Almaty, Kazakhstan; Kazakh-British Technical University, School of Chemical Engineering, Almaty, Kazakhstan
| | - Nermin Meriç
- Dicle University, Faculty of Science, Department of Chemistry, 21280 Diyarbakir, Turkey; Dicle University, Technical Vocational School, Department of Hair Care and Beauty Services, 21280 Diyarbakir, Turkey.
| | - Nil Ertekin Binbay
- Dicle University, Technical Vocational School, Department of Electronics, 21280 Diyarbakir, Turkey
| | - Veysi Okumuş
- Siirt University, Faculty of Medicine, Department of Medical Biology, 56100 Siirt, Turkey
| | - Kemal Erdem
- Siirt University, Instution of Science, Department of Biology, Siirt 56100, Turkey
| | - Yelizaveta Belyankova
- Kazakh-British Technical University, School of Chemical Engineering, Almaty, Kazakhstan
| | - Saniya Tursynbek
- Kazakh-British Technical University, School of Chemical Engineering, Almaty, Kazakhstan
| | - Anuar Dauletbakov
- Kazakh-British Technical University, School of Chemical Engineering, Almaty, Kazakhstan
| | - Sarah Bayazit
- Kazakh-British Technical University, School of Chemical Engineering, Almaty, Kazakhstan
| | - Darya Zolotareva
- Kazakh-British Technical University, School of Chemical Engineering, Almaty, Kazakhstan
| | - Kamshyger Yerassyl
- Kazakh-British Technical University, School of Chemical Engineering, Almaty, Kazakhstan
| | - Remziye Güzel
- Dicle University, Faculty of Education, Department of Science, Diyarbakir 21280, Turkey
| | - Yusuf Selim Ocak
- Institute of Nanotechnology, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Murat Aydemir
- Dicle University, Faculty of Science, Department of Chemistry, 21280 Diyarbakir, Turkey.
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2
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Shephard ACG, Delon A, Chevreux S, Martinez A, Guo Z, Deacon GB, Lemercier G, McClenaghan N, Jonusauskas G, Junk PC, Jaroschik F. Divalent ansa-Octaphenyllanthanocenes: Synthesis, Structures, and Eu II Luminescence. Inorg Chem 2024; 63:9395-9405. [PMID: 37310150 DOI: 10.1021/acs.inorgchem.3c01062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Reductive dimerization of fulvenes using low-valent metal precursors is a straightforward one-step approach to access ethylene-bridged metallocenes. This process has so far mainly been employed with fulvenes carrying one or two substituents in the exocyclic position. In this work, a new synthesis of the unsubstituted exocyclic 1,2,3,4-tetraphenylfulvene (1), its full structural characterization by NMR spectroscopy and single-crystal X-ray diffraction, as well as some photophysical properties and its first use in reductive dimerization are described. This fulvene reacted with different lanthanoid metals in thf to provide the divalent ansa-octaphenylmetallocenes [Ln(C5Ph4CH2)2(thf)n] (Ln = Sm, n = 2 (2); Ln = Eu, n = 2 (3); and Ln = Yb, n = 1 (4)). These complexes were characterized by X-ray diffraction, laser desorption/ionization time of flight mass spectrometry, and, in the case of Sm and Yb, multinuclear NMR spectroscopy, showing the influence of the ansa-bridge on solution and solid-state structures compared to previously reported unbridged metallocenes. Furthermore, the luminescence properties of the Eu ansa complex 3 were studied in solution and the solid state, revealing significant differences with the known octa- and deca-phenyleuropocenes, [Eu(C5Ph4H)2(dme)] and [Eu(C5Ph5)2].
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Affiliation(s)
- Angus C G Shephard
- College of Science and Engineering, James Cook University, Townsville 4811, Australia
| | - Aymeric Delon
- College of Science and Engineering, James Cook University, Townsville 4811, Australia
- Université de Reims Champagne-Ardenne, ICMR, UMR 7312, Reims 56187, France
| | - Sylviane Chevreux
- Université de Reims Champagne-Ardenne, ICMR, UMR 7312, Reims 56187, France
| | - Agathe Martinez
- Université de Reims Champagne-Ardenne, ICMR, UMR 7312, Reims 56187, France
| | - Zhifang Guo
- College of Science and Engineering, James Cook University, Townsville 4811, Australia
| | - Glen B Deacon
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Gilles Lemercier
- Université de Reims Champagne-Ardenne, ICMR, UMR 7312, Reims 56187, France
| | - Nathan McClenaghan
- Université Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, Talence F-33400, France
| | | | - Peter C Junk
- College of Science and Engineering, James Cook University, Townsville 4811, Australia
| | - Florian Jaroschik
- ICGM, Université Montpellier, CNRS, ENSCM, Montpellier 34090, France
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3
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Kadiyam RK, Sangolkar AA, Faizan M, Pawar R. Bispericyclic Ambimodal Dimerization of Pentafulvene: The Origin of Asynchronicity and Kinetic Selectivity of the Endo Transition State. J Org Chem 2024; 89:6813-6825. [PMID: 38661667 DOI: 10.1021/acs.joc.4c00186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The propensity of fulvenes to undergo dimerization has long been known, although the in-depth mechanism and electronic behavior during dimerization are still elusive. Herein, we made an attempt to gain insights into the reactivity of pentafulvene for Diels-Alder (DA) and [6 + 4]-cycloadditions via conventional and ambimodal routes. The result emphasizes that pentafulvene dimerization preferentially proceeds through a unique bifurcation mechanism where two DA pathways merge together to produce two degenerate [4 + 2]-cycloadducts from a single TS. Despite the [6 + 4]-cycloadduct being thermodynamically preferred, [4 + 2]-cycloaddition reactions are kinetically driven. Singlet biradicaloid is involved in through-space 6e- delocalization as a secondary orbital interaction that originates asynchronicity and stabilizes the bispericyclic transition state (TS). The transformation of various actively participating intrinsic bonding orbitals (IBOs) unambiguously forecasts the formation of multiple products from a single TS and rationalizes the mechanism of ambimodal reactions that are rather difficult to probe with other analyses. The changes in active IBOs clearly distinguish the conventional reactions from bifurcation reactions and can be employed to characterize and confirm the ambimodal mechanism. This report gains a crucial theoretical insight into the mechanism of bifurcation, the origin of asynchronicity, and electronic behavior in ambimodal TS, which will certainly be of enormous value for future studies.
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Affiliation(s)
- Rama Krishna Kadiyam
- Laboratory of Advanced Computation and Theory for Materials and Chemistry, Department of Chemistry, National Institute of Technology Warangal (NITW), Warangal, Telangana 506004, India
| | - Akanksha Ashok Sangolkar
- Laboratory of Advanced Computation and Theory for Materials and Chemistry, Department of Chemistry, National Institute of Technology Warangal (NITW), Warangal, Telangana 506004, India
| | - Mohmmad Faizan
- Laboratory of Advanced Computation and Theory for Materials and Chemistry, Department of Chemistry, National Institute of Technology Warangal (NITW), Warangal, Telangana 506004, India
| | - Ravinder Pawar
- Laboratory of Advanced Computation and Theory for Materials and Chemistry, Department of Chemistry, National Institute of Technology Warangal (NITW), Warangal, Telangana 506004, India
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4
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Gomez-Lopez S, Serrano R, Cohen B, Martinez-Argudo I, Lopez-Sanz L, Guadamillas MC, Calero R, Ruiz MJ. Novel Titanocene Y derivative with albumin affinity exhibits improved anticancer activity against platinum resistant cells. J Inorg Biochem 2024; 254:112520. [PMID: 38460481 DOI: 10.1016/j.jinorgbio.2024.112520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
The antitumor activity of Ti(IV)-based compounds put them in the spotlight for cancer treatment in the past, but their lack of stability in vivo due to a high rate of hydrolysis has hindered their development as antitumor drugs. As a possible solution for this problem, we have reported a synthesis strategy through which we combined a titanocene fragment, a tridentate ligand, and a long aliphatic chain. This strategy allowed us to generate a titanium compound (Myr-Ti) capable of interacting with albumin, highly stable in water and with cytotoxic activity in tumor cells[1]. Following a similar strategy, now we report the synthesis of a new compound (Myr-TiY) derived from titanocene Y that shows antitumoral activity in a cisplatin resistant model with a 50% inhibitory concentration (IC50) of 41-76 μM. This new compound shows high stability and a strong interaction with human serum albumin. Myr-TiY has a significant antiproliferative and proapoptotic effect on the tested cancer cells and shows potential tumor selectivity when assayed in non-tumor human epithelial cells being more selective (1.3-3.8 times) for tumor cells than cisplatin. These results lead us to think that the described synthesis strategy could be useful to generate compounds for the treatment of both cisplatin-sensitive and cisplatin-resistant cancers.
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Affiliation(s)
- Sergio Gomez-Lopez
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Rosario Serrano
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; Departamento de Química Orgánica, Inorgánica y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Boiko Cohen
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; Departamento de Química Física, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; INAMOL, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Isabel Martinez-Argudo
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Laura Lopez-Sanz
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Marta Carmen Guadamillas
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Raul Calero
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; Departamento de Química Orgánica, Inorgánica y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Maria Jose Ruiz
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; Departamento de Química Orgánica, Inorgánica y Bioquímica, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; INAMOL, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
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5
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Thanigachalam S, Pathak M. Bioactive O^N^O^ Schiff base appended homoleptic titanium(iv) complexes: DFT, BSA/CT-DNA interactions, molecular docking and antitumor activity against HeLa and A549 cell lines. RSC Adv 2024; 14:13062-13082. [PMID: 38655487 PMCID: PMC11034360 DOI: 10.1039/d3ra08574k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/06/2024] [Indexed: 04/26/2024] Open
Abstract
Five new homoleptic derivatives of titanium(iv) have been developed and characterized by physicochemical techniques. Metal complexes, TiH2L1 [(C38H26N6O4)Ti], TiH2L2 [(C38H24F2N6O4)Ti], TiH2L3 [(C38H24Cl2N6O4)Ti], TiH2L4 [(C38H24Br2N6O4)Ti] and TiH2L5 [(C38H24N8O8)Ti], were obtained by treating Ti(OPri)4 with appropriate ONO ligands (H2L1-H2L5) in anhydrous THF as solvent. The electronic structures and properties of titanium(iv) complexes (TiH2L1-TiH2L5) and ligands (H2L1-H2L5) were examined by DFT studies. The stability of all synthesized derivatives was assessed by a UV-visible technique using 10% DMSO, GSH medium and n-octanol/water systems. The binding interactions of BSA and CT-DNA with respective titanium(iv) complexes were successfully evaluated by employing UV-visible absorption, fluorescence, circular dichroism (CD) techniques and docking studies. The in vitro cytotoxicity of TiH2L2, TiH2L3 and TiH2L4 complexes was assessed against HeLa (human epithelioid cervical cancer cells) and A549 (lung carcinoma) cell lines. The IC50 values of TiH2L2, TiH2L3 and TiH2L4 were observed to be 28.8, 14.7 and 31.2 μg mL-1 for the HeLa cell line and 38.2, 32.9 and 67.78 μg mL-1 for A549 cells, respectively. Complex TiH2L3 exhibited remarkably induced cell cycle arrest in the G1 phase and 77.99% ROS production selectivity in the HeLa cell line.
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Affiliation(s)
- Sathish Thanigachalam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Madhvesh Pathak
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore 632014 Tamilnadu India
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6
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Singh S, Saini R, Joshi A, Singh N, Singh RP. Desymmetric homologating annulation to access chiral pentafulvenes and their application in bioimaging. Nat Commun 2024; 15:2101. [PMID: 38453892 PMCID: PMC10920648 DOI: 10.1038/s41467-024-45346-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 01/16/2024] [Indexed: 03/09/2024] Open
Abstract
The architectural design of polycyclic/multisubstituted pentafulvenes has demonstrated great potential for the development of electrochromic materials and biologically active motifs. Unfortunately, the enantioselective construction of such distinctive cores with all carbon quaternary chiral centers has remained untouched to date. Herein, we disclose an enantioselective homologating annulation of cyclopent-4-ene-dione with 3-cyano-4-methylcoumarins through L-tert-leucine derived thiourea catalysis, affording a wide range of enantioenriched polycyclic multisubstituted embedded aminopentafulvenes with excellent stereocontrol (up to 99:1 er) and chemical yields up to 87%. A detailed photophysical and cytotoxicity analysis of racemic and chiral homologated adducts unveils the exceptional behavior of chiral adducts over their racemic analogs, highlighting the importance of stereoselectivity of the developed scaffolds. A cellular uptake experiment in a mammalian fibroblast cell line confirmed the potential of developed polycyclic aminopentafulvene cores as a highly promising labeling dye that can be utilized for bioimaging without any adverse effects.
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Affiliation(s)
- Sanjay Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
| | - Ravi Saini
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
| | - Akshay Joshi
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Neetu Singh
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Ravi P Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India.
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7
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Sahu G, Sahu K, Patra SA, Mohapatra D, Khangar R, Sengupta S, Dinda R. Hydrolytically Stable Ti IV-Hydrazone-Based Metallodrugs: Protein Interaction and Anticancer Potential. ACS APPLIED BIO MATERIALS 2023; 6:5360-5371. [PMID: 38019535 DOI: 10.1021/acsabm.3c00629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
In this work, three titanium(IV) [TiIV(L1-3)2] (1-3) complexes have been reported using three different tridentate dibasic ONO donor hydrazone ligands, pyridine-4-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)-hydrazide (H2L1), furan-2-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)-hydrazide (H2L2), and thiophene-2-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)-hydrazide (H2L3) tethered with heterocyclic moieties. Elemental analysis, FT-IR, UV-vis, NMR, HR-ESI-MS, and single-crystal X-ray analysis have been used to characterize H2L1-3 and 1-3. In solid structures of 1-3, two ligand molecules with N2O4 donor sets give distorted octahedral geometries to the metal center. The aqueous stability of 1-3 was investigated and well correlated to their perceived pharmacological results. During the investigation, all three complexes were found to be hydrolytically stable in a 90% DMSO-d6/10% D2O (v/v) medium up to 48 h. Furthermore, the interaction of 1-3 with bovine serum albumin (BSA) was tested using fluorescence and absorption techniques. The complexes showed static quenching with a biomolecular quenching constant of Kq ∼ 1013 proposing a high affinity of complexes for BSA. Finally, the anticancer potential of 1-3 was tested against HeLa, A549, and NIH-3T3 cell lines. Among all, 1 with an IC50 value of 11.6 ± 1.1 μM against HeLa cells was found to be the most cytotoxic in the series. Furthermore, it has been found that the compounds induce an apoptotic mode of cell death, which is confirmed by the live cell confocal microscopy and flow cytometry techniques.
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Affiliation(s)
- Gurunath Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Kausik Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Sushree Aradhana Patra
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Deepika Mohapatra
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Ravi Khangar
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Swaraj Sengupta
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand 835215, India
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
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8
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Maity M, Maity R, Sarkar T, Bhakat A, Brandao P, Maity T, Das P, Sarkar K, Samanta BC. In Vitro Insight on Antifungal-Specific Potentiality of Ni(II) Complex against Colletotrichum siamense and Fusarium equisetum Phytopathogens. ACS APPLIED BIO MATERIALS 2023; 6:4836-4845. [PMID: 37935574 DOI: 10.1021/acsabm.3c00590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
In an initiation to investigate a prospective bioactive compound, a mononuclear Ni(II) complex with N, N, and O donor Schiff base ligand was synthesized and characterized in the present study through FTIR, ESI-mass, and X-ray crystallographic diffraction studies. A slightly distorted octahedral geometry has been obtained for the Ni(II) complex from X-ray crystallographic diffraction studies. In vitro comprehensive biological studies show the antifungal specific efficiency of the complex against Colletotrichum siamense (AP1) and Fusarium equisetum (F.E.) pathogens, which are responsible for anthracnose and wilt disease, respectively, but no inhibitory effect on both Gram-positive and Gram-negative bacteria. The minimum inhibitory concentration (MIC) for these pathogens was observed to be 0.25 and 0.5 mM, respectively. The experiment also reveals that significant damage of mycelia and enlarged, misshaped damaged spores are noticed in comparison to hexaconazole, used as a positive control under a light microscope post 48 h treatment of AP1 and F.E. with the MIC of the complex. The binding interaction studies of the complex with DNA and BSA performed through a variety of spectroscopic techniques demonstrate a strong binding behavior of the complex for both the binding systems. The observed negative ΔH° and ΔS° values for DNA reveal the existence of hydrogen-bonding/van der Waals interactions for DNA which was also exemplified from the molecular docking and self-assembly studies of the complex. The positive ΔH° and ΔS° values for BSA demonstrate the hydrophobic interactions of the complex with BSA. However, cytotoxicity studies against the MDA-MB-231 breast cancer cell line did not demonstrate any significant potentiality of the complex as an anticancer agent. All the bio-experimental studies provide clear evidence that the synthesized Ni(II) complex exhibits potential antifungal activity and could be used as a therapeutic fungicide agent in comparison to hexaconazole in agricultural practices.
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Affiliation(s)
- Minakshi Maity
- Department of Chemistry, Mugberia Gangadhar Mahavidyalaya, Bhupatinagar, Purba Medinipur, 721425 West Bengal, India
| | - Ribhu Maity
- Department of Chemistry, Mugberia Gangadhar Mahavidyalaya, Bhupatinagar, Purba Medinipur, 721425 West Bengal, India
| | - Tuhin Sarkar
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, 741235 West Bengal, India
| | - Ankika Bhakat
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, 741235 West Bengal, India
| | - Paula Brandao
- Departamento de Química/CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Tithi Maity
- Department of Chemistry, Prabhat Kumar College, Contai, Purba Medinipur, 721401 West Bengal, India
| | - Priyanka Das
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, 741235 West Bengal, India
| | - Keka Sarkar
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, 741235 West Bengal, India
| | - Bidhan Chandra Samanta
- Department of Chemistry, Mugberia Gangadhar Mahavidyalaya, Bhupatinagar, Purba Medinipur, 721425 West Bengal, India
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9
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Wieczorkiewicz PA, Zborowski KK, Krygowski TM, Szatylowicz H. Substituent Effect versus Aromaticity─A Curious Case of Fulvene Derivatives. J Org Chem 2023; 88:14775-14780. [PMID: 37773323 PMCID: PMC10594647 DOI: 10.1021/acs.joc.3c01539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Indexed: 10/01/2023]
Abstract
A computational study on amino- and nitro-substituted penta- and heptafulvenes reveals the interplay between the aromaticity and the substituent effect (SE). Ring substitution alone has little influence on the aromaticity, but in combination with an exo substituent of opposite properties, it substantially enhances the cyclic π-electron delocalization. Despite the SE being stronger for β substitution, only γ substitution leads to higher aromaticity. An explanation is provided by the electron density of delocalized bonds (EDDB) method, which proves to be a valuable tool in analyzing both cyclic delocalization and the SE.
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Affiliation(s)
- Pawel A. Wieczorkiewicz
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Krzysztof K. Zborowski
- Faculty
of Chemistry, Jagiellonian University in
Kraków, Gronostajowa
2, Kraków 30-387, Poland
| | - Tadeusz M. Krygowski
- Department
of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
| | - Halina Szatylowicz
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
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10
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Cseh K, Berasaluce I, Fuchs V, Banc A, Schweikert A, Prado-Roller A, Hejl M, Wernitznig D, Koellensperger G, Jakupec MA, Kandioller W, Malarek MS, Keppler BK. Anticancer Tungstenocenes with a Diverse Set of ( O,O-), ( O, S-) and ( O, N-) Chelates-A Detailed Biological Study Using an Improved Evaluation via 3D Spheroid Models. Pharmaceutics 2023; 15:1875. [PMID: 37514061 PMCID: PMC10384408 DOI: 10.3390/pharmaceutics15071875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/15/2023] [Accepted: 06/25/2023] [Indexed: 07/30/2023] Open
Abstract
The synthesis, characterization and biological activity of tungstenocenes with varying biologically active (O,O-), (S,O-) and (N,O-) chelates are described. Complexes were characterized by 1H and 13C NMR, elemental analysis, ESI-mass spectrometry, FT-IR spectroscopy and X-ray diffraction analysis. The aqueous stability was studied by UV/Vis spectroscopy and the WIV to WV process by cyclic voltammetry. The cytotoxicity was determined by the MTT assay in A549, CH1/PA-1 and SW480 cancer cells as well as in IMR-90 human fibroblasts. Extensive biological evaluation was performed in three other human cancer cell lines (HCT116, HT29 and MCF-7) in monolayer and multicellular tumor spheroid cultures to better understand the mode of action. Lead compounds showed promising in vitro anticancer activity in all cancer cell lines. Further studies yielded important insights into apoptosis induction, ROS generation, different patterns in metal distribution (detected by LA-ICP-TOF-MS), changes in KI67 (proliferation marker) expression and DNA interactions. The results based on qualitative and quantitative research designs show that complexes containing (S,O-) chelates are more active than their (O,O-) and (N,O-) counterparts. The most striking results in spheroid models are the high antiproliferative capacity and the different distribution pattern of two complexes differing only in a W-S or W-O bond.
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Affiliation(s)
- Klaudia Cseh
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Iker Berasaluce
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Valentin Fuchs
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Alexandra Banc
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Andreas Schweikert
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
- Institute of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 38, A 1090 Vienna, Austria
| | - Alexander Prado-Roller
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Michaela Hejl
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Debora Wernitznig
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Gunda Koellensperger
- Institute of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 38, A 1090 Vienna, Austria
| | - Michael A Jakupec
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
- Research Cluster "Translational Cancer Therapy Research", University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Wolfgang Kandioller
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
- Research Cluster "Translational Cancer Therapy Research", University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Michael S Malarek
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
| | - Bernhard K Keppler
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
- Research Cluster "Translational Cancer Therapy Research", University of Vienna, Waehringer Straße 42, A 1090 Vienna, Austria
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11
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Li LJ, Wang X, Xu H, Dai HX. Construction of polysubstituted pentafulvenes via palladium-catalyzed deacetylation of enones. Chem Commun (Camb) 2023; 59:3269-3272. [PMID: 36820796 DOI: 10.1039/d2cc06644k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Herein, we report an efficient synthetic method for polysubstituted pentafulvenes via palladium-catalyzed deacetylative [2+2+1] annulation of enones with alkynes. Aryl-, alkenyl-, and alkyl-substituted α,β-enones were suitable substrates, affording the pentafulvene products in moderate to good yields. This protocol shows excellent compatibility with sensitive halides, free hydroxyl groups, and heterocycles. One-pot gram-scale synthesis and further applications in the late-stage modification of natural products demonstrate the synthetic utility of this method.
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Affiliation(s)
- Ling-Jun Li
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Xing Wang
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Hui Xu
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Hui-Xiong Dai
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. .,University of Chinese Academy of Sciences, Beijing 100049, China.,School of Pharmaceutical Science and Technology, Hangzhou Institute of Advanced Study, Hangzhou 310024, China
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12
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Nongpiur CGL, Verma AK, Ghate MM, Poluri KM, Kaminsky W, Kollipara MR. Synthesis, cytotoxicity and antibacterial activities of ruthenium, rhodium and iridium metal complexes containing diazafluorene functionalized ligands. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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13
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Choudhary VK, Mandhan K, Dash D, Bhardwaj S, Kumari M, Sharma N. Density functional theory studies on molecular geometry, spectroscopy, HOMO-LUMO and reactivity descriptors of titanium(IV) and oxidozirconium(IV) complexes of phenylacetohydroxamic acid. J Comput Chem 2022; 43:2060-2071. [PMID: 36165982 DOI: 10.1002/jcc.27004] [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: 03/08/2022] [Revised: 07/27/2022] [Accepted: 09/05/2022] [Indexed: 11/11/2022]
Abstract
The molecular geometry of new titanium(IV) and oxidozirconium(IV) phenylacetohydroxamate complexes [TiCl2 (L1)2 ] (I) and [ZrO(L1)2 ] (II) (where L1 = Potassium phenylacetohydroxamate = C6 H5 CH2 CONHOK) computed by B3LYP/6-311++G(d,p) method has shown these to be distorted octahedral and square pyramidal, respectively. A comparison of computed characteristic bond lengths (CO, CN, and NO) of complexes with that of free ligand has shown chelation through carbonyl and hydroxamic oxygen atoms (O, O coordination). The TiO/ZrO bond lengths in complexes are suggestive of weak coordination through (carbonyl CO) and strong covalent (hydroxamic NO) bonding of the ligand. The magnitude of ClTiCl bond angle involving two chloride atoms is suggestive of cis-conformation at titanium metal in (I). The thermodynamic parameters Gibbs free energy, enthalpy, entropy, nuclear internal energy, constant volume heat capacity, and internal energy of ligand and complexes have been computed. From the energies of highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO), the global reactivity descriptors such as ionization potential (IP), electron affinity (EA), chemical potential (μ), hardness (η), softness (S), electronegativity (χ), electrophilicity index (ω), and dipole moment have been calculated. The computed vibrational frequencies, 1 H and 13 C NMR spectra have substantiated the molecular structure of complexes. The thermal behavior of complexes has been studied by thermogravimetric techniques (TGA, DTG, and DTA) in N2 atmosphere has shown complexes are thermally stable.
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Affiliation(s)
| | - Kanika Mandhan
- Department of Chemistry, IEC University Baddi, Solan, Himachal Pradesh, India
| | - Dibyajit Dash
- Department of Chemistry, Sant Longowal Institute of Engineering & Technology, Longowal, Sangrur, Punjab, India
| | - Sachin Bhardwaj
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, India
| | - Meena Kumari
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, India
| | - Neeraj Sharma
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, India
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14
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Sanz Garcia J, Gaschard M, Navizet I, Sahihi M, Top S, Wang Y, Pigeon P, Vessières A, Salmain M, Jaouen G. Inhibition of cathepsin B by ferrocenyl indenes highlights a new pharmacological facet of ferrocifens. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202101075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Juan Sanz Garcia
- Université Gustave Eiffel: Universite Gustave Eiffel MSME FRANCE
| | - Marie Gaschard
- Sorbonne Université: Sorbonne Universite Institut Parisien de Chimie Moléculaire FRANCE
| | - Isabelle Navizet
- Université Gustave Eiffel: Universite Gustave Eiffel MSME FRANCE
| | - Mehdi Sahihi
- Université Gustave Eiffel: Universite Gustave Eiffel MSME FRANCE
| | - Siden Top
- Sorbonne Université: Sorbonne Universite Institut Parisien de Chimie Moléculaire FRANCE
| | - Yong Wang
- Sorbonne Université: Sorbonne Universite Institut Parisien de Chimie Moléculaire FRANCE
| | - Pascal Pigeon
- PSL Research University: Universite PSL chimie Paristech FRANCE
| | - Anne Vessières
- Sorbonne Université: Sorbonne Universite Institut Parisien de Chimie Moléculaire FRANCE
| | - Michèle Salmain
- Sorbonne Université: Sorbonne Universite Institut Parisien de Chimie Moleculaire 4 place Jussieucase courrier 229 75005 Paris FRANCE
| | - Gerard Jaouen
- PSL Research University: Universite PSL chimie paristech FRANCE
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15
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Barloy L, Heinrich B, Scarpi-Luttenauer M, Douce L, Henry M, Khalil G, Klein D, Kyritsakas N, Mobian P. Modified pyridine-triazole and 2,2'-bipyrimidine ligands generating robust titanium complexes constructed around a TiO 4N 2 core. Dalton Trans 2021; 50:17008-17022. [PMID: 34738604 DOI: 10.1039/d1dt03172d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis and characterisation of novel chelate nitrogen ligands with phasmidic tails (pyridine-triazole ligand 1b; 2,2'-bipyrimidine ligands 2b and 3b) as well as their titanium(IV) coordination complexes are reported. The analogous ligands 1a, 2a and 3a with methoxy substituents instead of the tails were also synthesized, together with titanium complexes that could be crystallographically characterised. A good agreement is noticed between analytical data of the complexes in solution (NMR) and in the solid state (X-ray diffraction). The complexes are overall robust on phases like alumina or silica, so that they could be characterised by TLC and sometimes chromatographied. Supramolecular architectures were generated from an equimolar solution of titanium(IV) isopropoxide, ligand 1a and a polyphenol ligand 5-H4, leading to a double-stranded helicate characterised by MS, NMR and crystallography, which was then converted into a trinuclear complex as shown by MS and NMR DOSY data. The liquid-crystalline behaviour of the ligands 1b, 2b and 3b incorporating the long alkyl tails and that of the complexes derived from these ligands have been investigated.
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Affiliation(s)
- L Barloy
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - B Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS-Université de Strasbourg, F-67034 Strasbourg, France
| | | | - L Douce
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS-Université de Strasbourg, F-67034 Strasbourg, France
| | - M Henry
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - G Khalil
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - D Klein
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - N Kyritsakas
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
| | - P Mobian
- Université de Strasbourg, CNRS, CMC UMR 7140, F-67000 Strasbourg, France.
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16
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Abdou SN. Ultrasonic Assisted Nano-structures of Novel Organotin Supramolecular Coordination Polymers as Potent Antitumor Agents. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02055-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Hoshi K, Yasuda M, Nakamura T, Yoshida Y, Ueta S, Minagawa K, Kawamura Y, Imada Y, Yagishita F. Unexpected formation of poly-functionalized fulvenes by the reaction of a tetraaryl[5]cumulene with iodine. Org Biomol Chem 2021; 19:7594-7597. [PMID: 34524325 DOI: 10.1039/d1ob01270c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Longer cumulenes have come to draw considerable attention due to their unique properties and reactivities, leading to various hydrocarbons. In this manuscript, we describe the reaction of tetrakis(p-methoxyphenyl)[5]cumulene with iodine to afford poly-functionalized fulvenes via unexpected migration of a terminal aryl ring under ambient conditions. The obtained iodinated fulvenes were utilized in Suzuki-Miyaura cross-coupling reactions affording penta- and fully-arylated fulvenes successfully.
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Affiliation(s)
- Keita Hoshi
- Department of Applied Chemistry, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
| | - Masashi Yasuda
- Department of Applied Chemistry, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
| | - Takumi Nakamura
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yasushi Yoshida
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Shoko Ueta
- Department of Applied Chemistry, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
| | - Keiji Minagawa
- Department of Applied Chemistry, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
| | - Yasuhiko Kawamura
- Department of Applied Chemistry, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
| | - Yasushi Imada
- Department of Applied Chemistry, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
| | - Fumitoshi Yagishita
- Department of Applied Chemistry, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan. .,Department of Post-LED Photonics Research, Institute of Post-LED Photonics, 2-1 Minamijosanjima, Tokushima 770-8506, Japan
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18
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Nahari G, Tshuva EY. Synthesis of asymmetrical diaminobis(alkoxo)-bisphenol compounds and their C 1-symmetrical mono-ligated titanium(iv) complexes as highly stable highly active antitumor compounds. Dalton Trans 2021; 50:6423-6426. [PMID: 33949509 PMCID: PMC8130176 DOI: 10.1039/d1dt00219h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/18/2021] [Indexed: 11/26/2022]
Abstract
Asymmetrical 2,2'-((ethane-1,2-diylbis((2-hydroxyethyl)azanediyl))bis(methylene))diphenol substituted compounds and their C1-symmetrical diaminobis(phenolato)-bis(alkoxo) titanium(iv) complexes were synthesized, with one symmetrical analogue. X-ray crystallography corroborated tight ligand binding. Different substitutions on the two aromatic rings enabled fine-tuning of the complex properties, giving enhanced solubility, high anticancer activity (IC50 < 4 μM), and significant hydrolytic stability.
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Affiliation(s)
- Gilad Nahari
- The Institute of Chemistry, The Hebrew University of JerusalemJerusalem 9190401Israel
| | - Edit Y. Tshuva
- The Institute of Chemistry, The Hebrew University of JerusalemJerusalem 9190401Israel
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19
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Liu Y, Fan X, Tian R, Duan Z. FeCl 2 Catalyzed Three-Component Reactions of Phospholes, Pyrrolidine, and Ketones (Aldehydes): Chemoselective Synthesis of 1-Phosphafulvenes. Org Lett 2021; 23:2943-2947. [PMID: 33779177 DOI: 10.1021/acs.orglett.1c00602] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed an unprecedented approach for the synthesis of transient 1-phosphafulvenes through three component reactions of phospholes. The generation of 1-phosphafulvenes was demonstrated by in situ [6 + 4] cycloaddition with 2H-phospholes and [6 + 6] self-dimerization. The [6 + 4] and [6 + 6] reaction pathway could be modulated by the starting ketones and aldehydes. The construction of 1-phosphafulvenes is illustrated by a proposed mechanism combining nucleophilic addition of phospholide to the iminium or isomerized azomethine ylide and a [1,5]-shift of phosphole.
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Affiliation(s)
- Yanjie Liu
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
| | - Xinran Fan
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
| | - Rongqiang Tian
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
| | - Zheng Duan
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
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20
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Elsabawy KM, Fallatah AM, Owidah ZO. Tailored assembly synthesis of newly functionalized ruthenium (II)-urea-linked-warfarin complex-leads to coordinated MOFs as anticancer. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Absolonová M, Melounková L, Vinklárek J, Honzíček J, Dostál L, Mrózek O. Cyclopentadienyl-Based Anticancer Drugs: Improvement of Cytotoxic Activity through Functionalisation of the π Ligand. ChemMedChem 2021; 16:1804-1812. [PMID: 33635596 DOI: 10.1002/cmdc.202100060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/24/2021] [Indexed: 11/07/2022]
Abstract
Cytotoxic complexes containing molybdenum are widely studied as a potential substitution for commercially used drugs that often suffer from pronounced side effects and cellular resistance. Compounds of the type [(η5 -Cp')Mo(CO)2 (N,N L)][BF4 ], where Cp is cyclopentadienyl and N,N L is a bidentate ligand, are well known for their strong anticancer activity. It is a generally accepted paradigm that the nature of the coordinated N,N L ligand has a major impact on the cytotoxicity. In this study, a series of new functionalised Cp complexes of molybdenum was synthesised from derivatised fulvenes as π-ligand precursors. Indeed, the coordination sphere's modulation by various N,N-chelating ligands afforded species active toward leukemic cell line MOLT-4 with IC50 values depending on the character of the N,N-chelator used. However, following study clearly showed that functionalisation of the Cp ring with an amine moiety considerably improved cytotoxicity. These results are of crucial importance for the future design of highly active cytotoxic drugs, as modification of cyclopentadienyl is believed to have a minor effect on biological activity.
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Affiliation(s)
- Monika Absolonová
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Lucie Melounková
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210, Pardubice, Czech Republic.,Faculty of Medicine in Hradec Králové, Charles University in Prague, Šimkova 870, 500 01, Hradec Králové, Czech Republic
| | - Jaromír Vinklárek
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Jan Honzíček
- Institute of Chemistry and Technology of Macromolecular Materials, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Ondřej Mrózek
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic.,Faculty of Chemistry and Chemical Biology, Technische Universität Dortmund, 44227, Dortmund, Germany
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22
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Liu Y, Tian R, Duan Z, Mathey F. Nonbenzenoid aromaticity of 1-phosphafulvenes: synthesis of phosphacymantrenes. Dalton Trans 2021; 50:476-479. [PMID: 33355316 DOI: 10.1039/d0dt03934a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination chemistry of 1-phosphafulvenes was investigated by employing their [6 + 4] adducts or α-C2-bridged biphospholes as a precursor. Unbridged phosphacymantrenes arise from 1-phosphafulvenes via proton abstraction. α-C2-bridged biphosphacymantrenes are probably yielded by the reductive coupling of 1-phosphafulvene with Mn2(CO)10. The coordination behavior of 1-phosphafulvenes is comparable to that of pentafulvenes, which again demonstrates the phosphorus-carbon analogy in low-coordinate organophosphorus chemistry.
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Affiliation(s)
- Yanjie Liu
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan 450002, China.
| | - Rongqiang Tian
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan 450002, China.
| | - Zheng Duan
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan 450002, China.
| | - François Mathey
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan 450002, China.
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23
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Liu N, Li Q, McDowell SAC. Reliable Comparison of Pnicogen, Chalcogen, and Halogen Bonds in Complexes of 6-OXF 2-Fulvene (X = As, Sb, Se, Te, Be, I) With Three Electron Donors. Front Chem 2020; 8:608486. [PMID: 33425859 PMCID: PMC7793776 DOI: 10.3389/fchem.2020.608486] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 10/27/2020] [Indexed: 01/03/2023] Open
Abstract
The pnicogen, chalcogen, and halogen bonds between 6-OXF2-fulvene (X = As, Sb, Se, Te, Br, and I) and three nitrogen-containing bases (FCN, HCN, and NH3) are compared. For each nitrogen base, the halogen bond is strongest, followed by the pnicogen bond, and the chalcogen bond is weakest. For each type of bond, the binding increases in the FCN < HCN < NH3 pattern. Both FCN and HCN engage in a bond with comparable strengths and the interaction energies of most bonds are < -6 kcal/mol. However, the strongest base NH3 forms a much more stable complex, particularly for the halogen bond with the interaction energy going up to -18 kcal/mol. For the same type of interaction, its strength increases as the mass of the central X atom increases. These bonds are different in strength, but all of them are dominated by the electrostatic interaction, with the polarization contribution important for the stronger interaction. The presence of these bonds changes the geometries of 6-OXF2-fulvene, particularly for the halogen bond formed by NH3, where the F-X-F arrangement is almost vertical to the fulvene ring.
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Affiliation(s)
- Na Liu
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, China
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, China
| | - Sean A C McDowell
- Department of Biological and Chemical Sciences, The University of the West Indies, Cave Hill Campus, Cave Hill, Barbados
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24
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Schraff S, Trampert J, Orthaber A, Pammer F. Electronic Properties and Solid-State Packing of Isocyanofulvenes and Their Gold(I) Chloride Complexes. Inorg Chem 2020; 59:17171-17183. [DOI: 10.1021/acs.inorgchem.0c02435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sandra Schraff
- Institute of Organic Chemistry II and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Jens Trampert
- Institute of Organic Chemistry II and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Andreas Orthaber
- Department of Chemistry−Ångström Laboratories, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Frank Pammer
- Institute of Organic Chemistry II and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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25
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Malik M, Bieńko DC, Komarnicka UK, Kyzioł A, Dryś M, Świtlicka A, Dyguda-Kazimierowicz E, Jedwabny W. Synthesis, structural characterization, docking simulation and in vitro antiproliferative activity of the new gold(III) complex with 2-pyridineethanol. J Inorg Biochem 2020; 215:111311. [PMID: 33246642 DOI: 10.1016/j.jinorgbio.2020.111311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/12/2020] [Accepted: 11/12/2020] [Indexed: 12/31/2022]
Abstract
Gold(III) complex containing 2-pyridineethanol has been synthesized and characterized structurally by single crystal X-ray diffraction, vibrational spectroscopy, 1H NMR spectroscopy, electrochemical study, and DFT calculations. The Au(III) ion is four coordinated with one N-donor ligand (L) and three Cl anions. The Okuniewski's (τ'4=0.018) has been used to estimate the angular distortion from ideal square planar geometry. The vibrational spectroscopy studies, in the solid state and DMSO solution and cyclic voltammetry, have been performed to determine its stability and redox activity, respectively. A complete assignment of the IR and Raman spectra has been made based on the calculated potential energy distribution (PED). The theoretical calculations have been made for two functionals and several basis sets. The compound has been evaluated for its antiproliferative properties in a human lung adenocarcinoma cell line (A549), mouse colon carcinoma (CT26), human breast adenocarcinoma (MCF-7), human prostate carcinoma derived from the metastatic site in the brain (DU-145), and PANC-1 human pancreas/duct carcinoma cell line and non-tumorigenic cell lines: HaCat (human keratinocyte), and HEK293T (human embryonic kidney). Au(III) complex cytotoxicity is significantly against A549 and MCF-7 cells as in the reference drug: cisplatin. Studies of the interactions of Au(III) complex with DNA, HSA (human serum albumin) have been performed. The results from modeling docking simulations indicate that the title complex exerts anticancer effects in vitro based on different mechanisms of action to compare with cisplatin.
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Affiliation(s)
- Magdalena Malik
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland.
| | - Dariusz C Bieńko
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Urszula K Komarnicka
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Agnieszka Kyzioł
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Magdalena Dryś
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Anna Świtlicka
- Department of Crystallography, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Edyta Dyguda-Kazimierowicz
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Wiktoria Jedwabny
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
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Non-Linear Optical Property and Biological Assays of Therapeutic Potentials Under In Vitro Conditions of Pd(II), Ag(I) and Cu(II) Complexes of 5-Diethyl amino-2-({2-[(2-hydroxy-Benzylidene)-amino]-phenylimino}-methyl)-phenol. Molecules 2020; 25:molecules25215089. [PMID: 33147867 PMCID: PMC7662626 DOI: 10.3390/molecules25215089] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 11/17/2022] Open
Abstract
Herein, we report facile procedures for synthesis of a new Schiff base ligand (H2L,5-Diethylamino-2-({2-[(2-hydroxy-benzylidene)-amino]-phenylimino}-methyl)-phenol) and its Ag(I), Pd(II) and Cu(II) complexes. The structure of the H2L ligand as well as its metal complexes was deduced based on wide range of analytical, structural and spectroscopic tools, along with theoretical evidence via density functional theory (DFT) calculations. The obtained results indicated that the Schiff base (H2L) ligand acts as a tetradentate N2O2 donor with two azomethine nitrogen’s (N1, N2) and two deprotonated phenolic oxygens (O1, O2) atoms. A distorted octahedral structure is assigned to [CuL(OH2)2]·3/2H2O complex and square planar structure for PdL and AgL complexes. The electronic structure and non-linear optical (NLO) property of the prepared compounds were discussed theoretically by the B3LYP/GENECP program. Results revealed that all complexes have non-planner geometries as indicated from the dihedral angles. The charge transfer occurs within the synthesized complexes as indicated from the calculated energy gap between HOMO and LUMO energies. The H2L ligand and its complexes are excellent candidates for NLO materials as implied from their hyperpolarizabilities and polarizabilities values. The biological activities of the prepared complexes against selected microorganisms and cancer cell lines gave good growth inhibitory effect. The biocidal potencies of the ligand and its complexes can be arranged as follows: AgL > CuL > PdL > H2L, as compared to the used standard drugs. The antiproliferative activity of the studied complexes against different carcinoma cell lines such as liver (Hep-G2), breast (MCF-7) and colon (HCT-116) followed the order H2L < AgL< PdL < CuL < vinblastine. Probing the binding interactions of prepared complexes with calf thymus (CT)-DNA using electronic absorption, gel electrophoresis and viscosity measurements revealed strong interaction via intercalation modes, as also evidenced by their molecular docking study.
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Giesen K, Spahn I, Neumaier B. Thermochromatographic separation of 45Ti and subsequent radiosynthesis of [45Ti]salan. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07376-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
AbstractDue to its favorable decay properties, the non-standard radionuclide 45Ti is a promising PET isotope for tumor imaging. Additionally, titanium complexes are widely used as anti-tumor agents and 45Ti could be used to study their in vivo distribution and metabolic fate. However, although 45Ti can be obtained using the 45Sc(p,n)45Ti nuclear reaction its facile production is offset by the high oxophilicity and hydrolytic instability of Ti4+ ions in aqueous solutions, which complicate recovery from the irradiated Sc matrix. Most available 45Ti recovery procedures rely on ion exchange chromatography or solvent extraction techniques which are time-consuming, produce large final elution volumes, or, in case of solvent extraction, cannot easily be automated. Thus a more widespread application of 45Ti for PET imaging has been hampered. Here, we describe a novel, solvent-free approach for recovery of 45Ti that involves formation of [45Ti]TiCl4 by heating of an irradiated Sc target in a gas stream of chlorine, followed by thermochromatographic separation of the volatile radiometal chloride from co-produced scandium chloride and trapping of [45Ti]TiCl4 in a glass vial at − 78 °C. The recovery of 45Ti amounted to 76 ± 5% (n = 5) and the radionuclidic purity was determined to be > 99%. After trapping, the [45Ti]TiCl4 could be directly used for 45Ti-radiolabeling, as demonstrated by the successful radiosynthesis of [45Ti][Ti(2,4-salan)].
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28
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Synthesis, characterization and in vitro biological evaluation of novel organotin(IV) compounds with derivatives of 2-(5-arylidene-2,4-dioxothiazolidin-3-yl)propanoic acid. J Inorg Biochem 2020; 211:111207. [PMID: 32801055 DOI: 10.1016/j.jinorgbio.2020.111207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 12/14/2022]
Abstract
Two novel triphenyltin(IV) compounds, [Ph3SnL1] (L1 = 2-(5-(4-fluorobenzylidene)-2,4-dioxotetrahydrothiazole-3-yl)propanoate (1)) and [Ph3SnL2] (L2 = 2-(5-(5-methyl-2-furfurylidene)-2,4-dioxotetrahydrothiazole-3-yl)propanoate (2)) were synthesized and characterized by FT-IR, (1H and 13C) NMR spectroscopy, mass spectrometry, and elemental microanalysis. The in vitro anticancer activity of the synthesized organotin(IV) compounds was determined against four tumor cell lines: PC-3 (prostate), HT-29 (colon), MCF-7 (breast), and HepG2 (hepatic) using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-12 diphenyltetrazolium bromide) and CV (crystal violet) assays. The IC50 values are found to be in the range from 0.11 to 0.50 μM. Compound 1 exhibits the highest activity toward PC-3 cells (IC50 = 0.115 ± 0.009 μM; CV assay). The tin and platinum uptake in PC-3 cells showed a threefold lower uptake of tin in comparison to platinum (as cisplatin). Together with its higher activity this indicates a much higher cell inhibition potential of the tin compounds (calculated to ca. 50 to 100 times). Morphological analysis suggested that the compounds induce apoptosis in PC-3 cells, and flow cytometry analysis revealed that 1 and 2 induce autophagy as well as NO (nitric oxide) production.
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Peng S, Chen N, Zhang H, He M, Li H, Lang M, Wang J. Palladium(II)-Catalyzed Oxidative Decarboxylative [2 + 2 + 1] Annulation of Cinnamic Acids with Alkynes: Access to Polysubstituted Pentafulvenes. Org Lett 2020; 22:5589-5593. [PMID: 32588631 DOI: 10.1021/acs.orglett.0c01955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An unprecedented palladium(II)-catalyzed oxidative decarboxylative [2 + 2 + 1] annulation of cinnamic acids with alkynes has been developed for the synthesis of polysubstituted pentafulvenes. Ag2CO3 and DMSO are essential for the reaction. This protocol features readily available starting materials, a wide substrate scope, and moderate to excellent yields. Moreover, various significant frameworks can be easily obtained from the late-stage transformations of pentafulvenes via oxidation, reduction, and Scholl-type reaction.
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Affiliation(s)
- Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Nuan Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Hong Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Min He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China.,School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, P. R. China
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30
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Lesiów MK, Komarnicka UK, Kyzioł A, Bieńko A, Pietrzyk P. ROS-mediated lipid peroxidation as a result of Cu(ii) interaction with FomA protein fragments of F. nucleatum: relevance to colorectal carcinogenesis. Metallomics 2020; 11:2066-2077. [PMID: 31657425 DOI: 10.1039/c9mt00179d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The ability of the studied FomA protein fragments of Fusobacterium nucleatum (Fn) with copper(ii) ions (Cu(ii)-Ac-KGHGNGEEGTPTVHNE-NH2 (1Cu) and its cyclic analogue Cu(ii)-cyclo(KGHGNGEEGTPTVHNE) (2Cu)) to induce reactive oxygen species (ROS) generation, as a result of red-ox processes, was determined by UV-Vis, luminescence methods, spin trapping and cyclic voltamperometry. The contribution of 1O2 and ˙OH to DNA degradation was proved using gel electrophoresis. Furthermore, the pronounced generation of ROS by mouse colon carcinoma cells (CT26) stimulated by both copper(ii) complexes was confirmed. A fluorescence method allowed the total amounts of ROS generated inside the CT26 cells to be detected, while the spin trapping technique proved that free radicals mainly attached to the membrane surface. These last results are in agreement with the data obtained from the ICP-MS method, which demonstrates that 1Cu and 2Cu complexes are not efficiently accumulated inside the cell. Furthermore, the role of ROS in lipid peroxidation was established. The above-mentioned factors may clearly indicate the contribution of ROS generated by the studied copper(ii) complexes to colonic cell damage, which can lead to a carcinogenesis process. This study may be an important step to recognize and understand the mechanism of colon cancer initiation.
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31
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Modeling of the spatial and electronic structure and the dipole moment of titanocene dicarboranyl. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2749-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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32
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Synthesis, single crystal X-ray, spectroscopic characterization and biological activities of Mn2+, Co2+, Ni2+ and Fe3+ complexes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127240] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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33
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Komarnicka UK, Kozieł S, Zabierowski P, Kruszyński R, Lesiów MK, Tisato F, Porchia M, Kyzioł A. Copper(I) complexes with phosphines P(p-OCH3-Ph)2CH2OH and P(p-OCH3-Ph)2CH2SarGly. Synthesis, multimodal DNA interactions, and prooxidative and in vitro antiproliferative activity. J Inorg Biochem 2020; 203:110926. [DOI: 10.1016/j.jinorgbio.2019.110926] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 12/21/2022]
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34
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Phukon J, Gogoi S. Palladium(ii)-catalyzed vinylic geminal double C-H activation and alkyne annulation reaction: synthesis of pentafulvenes. Chem Commun (Camb) 2020; 56:1133-1136. [PMID: 31894770 DOI: 10.1039/c9cc09564k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first transition-metal-catalyzed vinylic geminal double C(sp2)-H activation and di-substituted alkyne annulation reaction is reported. This palladium(ii)-catalyzed, amide directed reaction of vinylic compounds with di-substituted alkynes offers an efficient synthetic path to pentafulvenes, which are very important compounds because of their bioactivity and interesting optical properties. A FeCl3-mediated transformation of pentafulvenes to fluorescent cyclopenta[b]quinolines is also developed.
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Affiliation(s)
- Jyotshna Phukon
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, AcSIR, Jorhat-785006, India.
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, AcSIR, Jorhat-785006, India.
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35
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Tabrizi L, Olasunkanmi LO, Fadare OA. De novodesign of thioredoxin reductase-targeted heterometallic titanocene–gold compounds of chlorambucil for mechanistic insights into renal cancer. Chem Commun (Camb) 2020; 56:297-300. [DOI: 10.1039/c9cc07406f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A chlorambucil-alkynyl mononuclear gold(i) complex and heteronuclear titanocene–gold(i) complex were studied for mechanism of action in renal cancer by experimental and computational methods.
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Affiliation(s)
- Leila Tabrizi
- School of Chemistry
- National University of Ireland
- Galway
- Ireland
| | - Lukman O. Olasunkanmi
- Department of Chemistry
- Faculty of Science
- Obafemi Awolowo University
- Ile-Ife 220005
- Nigeria
| | - Olatomide A. Fadare
- Department of Chemistry
- Faculty of Science
- Obafemi Awolowo University
- Ile-Ife 220005
- Nigeria
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36
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Kozieł S, Komarnicka UK, Ziółkowska A, Skórska-Stania A, Pucelik B, Płotek M, Sebastian V, Bieńko A, Stochel G, Kyzioł A. Anticancer potency of novel organometallic Ir(iii) complexes with phosphine derivatives of fluoroquinolones encapsulated in polymeric micelles. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00538j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A 3D model of cell culturing (spheroids) was explored and the anticancer potential of the selected novel organometallic Ir(iii) complex encapsulated in Pluronic p-123 micelles was clearly proved.
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Affiliation(s)
- Sandra Kozieł
- Faculty of Chemistry
- University of Wroclaw
- 50-383 Wroclaw
- Poland
| | | | | | | | - Barbara Pucelik
- Małopolska Centre of Biotechnology
- Jagiellonian University
- Kraków
- Poland
| | - Michał Płotek
- Faculty of Chemistry
- Jagiellonian University in Krakow
- 30-387 Krakow
- Poland
- Faculty of Conservation and Restoration of Works of Art
| | - Victor Sebastian
- Department of Chemical Engineering
- Aragon Institute of Nanoscience (INA)
- The Aragón Materials Science Institute (ICMA)
- University of Zaragoza
- 50018 Zaragoza
| | - Alina Bieńko
- Faculty of Chemistry
- University of Wroclaw
- 50-383 Wroclaw
- Poland
| | - Grażyna Stochel
- Faculty of Chemistry
- Jagiellonian University in Krakow
- 30-387 Krakow
- Poland
| | - Agnieszka Kyzioł
- Faculty of Chemistry
- Jagiellonian University in Krakow
- 30-387 Krakow
- Poland
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37
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Zarei L, Asadi Z, Samolova E, Dusek M. Preparation of a dimer from self-complementary of cobalt(III) complex with dissymmetric compartmental ligand and study of the interaction of the complex with DNA and BSA. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1694148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Leila Zarei
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran
| | - Zahra Asadi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran
| | - Erika Samolova
- Institute of Physics, ASCR, Prague, Czech Republic
- Department of Inorganic Chemistry, Pavol Jozef Šafárik University in Košice, Slovak Republic Košice
| | - Michal Dusek
- Institute of Physics, ASCR, Prague, Czech Republic
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38
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Šimková L, Svoboda J, Pinkas J, Skoupilová H, Hrstka R, Dunlop D, Lamač M, Gyepes R, Ludvík J. Electrochemical Study of Highly Substituted Titanocene Dihalides. ELECTROANAL 2019. [DOI: 10.1002/elan.201900464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ludmila Šimková
- J. Heyrovský Institute of Physical ChemistryCzech Academy of Sciences Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Jan Svoboda
- J. Heyrovský Institute of Physical ChemistryCzech Academy of Sciences Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Jiří Pinkas
- J. Heyrovský Institute of Physical ChemistryCzech Academy of Sciences Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Hana Skoupilová
- Regional Centre for Applied and Molecular OncologyMasaryk Memorial Cancer Institute Žlutý kopec 7 65653 Brno Czech Republic
| | - Roman Hrstka
- Regional Centre for Applied and Molecular OncologyMasaryk Memorial Cancer Institute Žlutý kopec 7 65653 Brno Czech Republic
| | - David Dunlop
- J. Heyrovský Institute of Physical ChemistryCzech Academy of Sciences Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Martin Lamač
- J. Heyrovský Institute of Physical ChemistryCzech Academy of Sciences Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Róbert Gyepes
- J. Heyrovský Institute of Physical ChemistryCzech Academy of Sciences Dolejškova 2155/3 182 23 Prague 8 Czech Republic
- Department of Inorganic ChemistryCharles University Hlavova 2030 128 43 Prague 2 Czech Republic
| | - Jiří Ludvík
- J. Heyrovský Institute of Physical ChemistryCzech Academy of Sciences Dolejškova 2155/3 182 23 Prague 8 Czech Republic
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39
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Dahm G, Bouché M, Bailly C, Karmazin L, Bellemin-Laponnaz S. Synthesis and structural characterization of benzyl-functionalized N-heterocyclic carbene platinum complexes: Dramatic substituent effect on anti-cancer activity. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Fischer M, Fitschen K, Schmidtmann M, Beckhaus R. Reactivity Studies of a Bis(π-η5:σ-η1-benzofulvene)titanium Complex Including Simultaneous N–H and C(sp2)–H Activation of Dibenzylamine. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Malte Fischer
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Kerstin Fitschen
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
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41
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Swan E, Platts K, Blencowe A. An overview of the cycloaddition chemistry of fulvenes and emerging applications. Beilstein J Org Chem 2019; 15:2113-2132. [PMID: 31579091 PMCID: PMC6753682 DOI: 10.3762/bjoc.15.209] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/21/2019] [Indexed: 01/21/2023] Open
Abstract
The unusual electronic properties and unique reactivity of fulvenes have interested researchers for over a century. The propensity to form dipolar structures at relatively low temperatures and to participate as various components in cycloaddition reactions, often highly selectively, makes them ideal for the synthesis of complex polycyclic carbon scaffolds. As a result, fulvene cycloaddition chemistry has been employed extensively for the synthesis of natural products. More recently, fulvene cycloaddition chemistry has also found application to other areas including materials chemistry and dynamic combinatorial chemistry. This highlight article discusses the unusual properties of fulvenes and their varied cycloaddition chemistry, focussing on applications in organic and natural synthesis, dynamic combinatorial chemistry and materials chemistry, including dynamers, hydrogels and charge transfer complexes. Tables providing comprehensive directories of fulvene cycloaddition chemistry are provided, including fulvene intramolecular and intermolecular cycloadditions complete with reactant partners and their resulting cyclic adducts, which provide a useful reference source for synthetic chemists working with fulvenes and complex polycyclic scaffolds.
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Affiliation(s)
- Ellen Swan
- School of Pharmacy and Medical Sciences, The University of South Australia, Adelaide, South Australia 5000, Australia
| | - Kirsten Platts
- School of Pharmacy and Medical Sciences, The University of South Australia, Adelaide, South Australia 5000, Australia
| | - Anton Blencowe
- School of Pharmacy and Medical Sciences, The University of South Australia, Adelaide, South Australia 5000, Australia.,Future Industries Institute, The University of South Australia, Mawson Lakes, South Australia 5095, Australia
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42
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Hou M, Li Q, Scheiner S. Comparison between Hydrogen and Halogen Bonds in Complexes of 6‐OX‐Fulvene with Pnicogen and Chalcogen Electron Donors. Chemphyschem 2019; 20:1978-1984. [DOI: 10.1002/cphc.201900340] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/28/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Mingchang Hou
- Laboratory of Theoretical and Computational Chemistry and School of Chemistry and Chemical EngineeringYantai University Yantai 264005 China
| | - Qingzhong Li
- Laboratory of Theoretical and Computational Chemistry and School of Chemistry and Chemical EngineeringYantai University Yantai 264005 China
| | - Steve Scheiner
- Department of Chemistry and BiochemistryUtah State University Logan UT 84322–0300 USA
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43
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Salan vs. salen metal complexes in catalysis and medicinal applications: Virtues and pitfalls. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.02.035] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Abid M, Nouch R, Bradshaw TD, Lewis W, Woodward S. Tripodal O-N-O Bis
-Phenolato Amine Titanium(IV) Complexes Show High in vitro Anti-Cancer Activity. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900510] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mohammed Abid
- Department of Chemistry; College of Science; University of Anbar; Western side of Ramadi City Anbarshire Republic of Iraq
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Triumph Road Nottingham NG7 2TU United Kingdom
| | - Ryan Nouch
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Triumph Road Nottingham NG7 2TU United Kingdom
| | - Tracey D. Bradshaw
- School of Pharmacy, Centre for Biomolecular Sciences; College of Science; University Park Nottingham NG7 2RD United Kingdom
| | - William Lewis
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Triumph Road Nottingham NG7 2TU United Kingdom
| | - Simon Woodward
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Triumph Road Nottingham NG7 2TU United Kingdom
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Suzuki S, Kinoshita H, Miura K. Palladium-Catalyzed Regio- and Stereoselective Synthesis of ( E)-1,3-Bissilyl-6-arylfulvenes from Aryl Iodides and Silylacetylenes. Org Lett 2019; 21:1612-1616. [PMID: 30789738 DOI: 10.1021/acs.orglett.9b00144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient synthetic route to ( E)-1,3-bissilyl-6-arylfulvenes has been developed. The reaction of aryl iodides with trimethylsilylacetylene in the presence of a catalytic amount of PdBr2 gives 6-aryl-1,3-bis(trimethylsilyl)fulvenes in good to excellent yields with complete regio- and stereoselectivity. The reaction involves trimerization of trimethylsilylacetylene and cleavage of one silyl group. The silylated fulvenes obtained could be converted into halogenated fulvenes by site-selective halodesilylation. The halogenated fulvenes underwent the Stille coupling leading to the corresponding arylated fulvenes.
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Affiliation(s)
- Souta Suzuki
- Department of Applied Chemistry, Graduate School of Science and Engineering , Saitama University , 255 Shimo-ohkubo , Sakura-ku, Saitama 338-8570 , Japan
| | - Hidenori Kinoshita
- Department of Applied Chemistry, Graduate School of Science and Engineering , Saitama University , 255 Shimo-ohkubo , Sakura-ku, Saitama 338-8570 , Japan
| | - Katsukiyo Miura
- Department of Applied Chemistry, Graduate School of Science and Engineering , Saitama University , 255 Shimo-ohkubo , Sakura-ku, Saitama 338-8570 , Japan
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46
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Development of novel Cu(I) compounds with vitamin B1 derivative and their potential application as anticancer drugs. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.12.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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47
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Geometry and spectral parameters of structurally complicated titanocene in gas and solution. Russ Chem Bull 2019. [DOI: 10.1007/s11172-018-2377-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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48
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Zaki M, Hairat S, Aazam ES. Scope of organometallic compounds based on transition metal-arene systems as anticancer agents: starting from the classical paradigm to targeting multiple strategies. RSC Adv 2019; 9:3239-3278. [PMID: 35518979 PMCID: PMC9060267 DOI: 10.1039/c8ra07926a] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 12/26/2018] [Indexed: 02/02/2023] Open
Abstract
The advent of the clinically approved drug cisplatin started a new era in the design of metallodrugs for cancer chemotherapy. However, to date, there has not been much success in this field due to the persistence of some side effects and multi-drug resistance of cancer cells. In recent years, there has been increasing interest in the design of metal chemotherapeutics using organometallic complexes due to their good stability and unique properties in comparison to normal coordination complexes. Their intermediate properties between that of traditional inorganic and organic materials provide researchers with a new platform for the development of more promising cancer therapeutics. Classical metal-based drugs exert their therapeutic potential by targeting only DNA, but in the case of organometallic complexes, their molecular target is quite distinct to avoid drug resistance by cancer cells. Some organometallic drugs act by targeting a protein or inhibition of enzymes such as thioredoxin reductase (TrRx), while some target mitochondria and endoplasmic reticulum. In this review, we mainly discuss organometallic complexes of Ru, Ti, Au, Fe and Os and their mechanisms of action and how new approaches improve their therapeutic potential towards various cancer phenotypes. Herein, we discuss the role of structure-reactivity relationships in enhancing the anticancer potential of drugs for the benefit of humans both in vitro and in vivo. Besides, we also include in vivo tumor models that mimic human physiology to accelerate the development of more efficient clinical organometallic chemotherapeutics.
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Affiliation(s)
- Mehvash Zaki
- Department of Chemistry, King Abdulaziz University Jeddah Saudia Arabia +91 8979086156, +966 561835672
| | - Suboot Hairat
- Department of Biotechnology, Wachemo University Hossana Ethiopia
| | - Elham S Aazam
- Department of Chemistry, King Abdulaziz University Jeddah Saudia Arabia +91 8979086156, +966 561835672
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49
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Barloy L, Heinrich B, Douce L, Henry M, Scarpi-Luttenauer M, Kyritsakas N, Mobian P. A robust Ti(iv)-based mesogen constructed around a TiO4N2 core. Dalton Trans 2019; 48:1960-1963. [DOI: 10.1039/c8dt04972f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ti(iv)-complex with thermotropic liquid crystal properties is reported.
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Affiliation(s)
- L. Barloy
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - B. Heinrich
- Université de Strasbourg
- CNRS
- Institut de Physique et de Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| | - L. Douce
- Université de Strasbourg
- CNRS
- Institut de Physique et de Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| | - M. Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - M. Scarpi-Luttenauer
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - N. Kyritsakas
- Laboratoire de Tectonique Moléculaire
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - P. Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
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50
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Manne R, Miller M, Duthie A, Guedes da Silva MFC, Tshuva EY, Basu Baul TS. Cytotoxic homoleptic Ti(iv) compounds of ONO-type ligands: synthesis, structures and anti-cancer activity. Dalton Trans 2019; 48:304-314. [DOI: 10.1039/c8dt03747g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Reacting variously substituted dianionic tridentate ONO-type acylhydrazone ligands with titanium(iv) tetra(isopropoxide) gave a new class of eight homoleptic titanium(iv) compounds showing exceptional stability and promising cytotoxicity.
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Affiliation(s)
- Rajesh Manne
- Centre of Advanced Studies in Chemistry
- North-Eastern Hill Unversity
- Shillong 793 022
- India
| | - Maya Miller
- Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 9190401
- Israel
| | - Andrew Duthie
- School of Life and Environmental Science
- Deakin University
- Geelong
- Australia
| | | | - Edit Y. Tshuva
- Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 9190401
- Israel
| | - Tushar S. Basu Baul
- Centre of Advanced Studies in Chemistry
- North-Eastern Hill Unversity
- Shillong 793 022
- India
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