1
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Hussein AA, Ariffin A. Remote Steric and Electronic Effects of N-Heterocyclic Carbene Ligands on Alkene Reactivity and Regioselectivity toward Hydrocupration Reactions: The Role of Expanded-Ring N-Heterocyclic Carbenes. J Org Chem 2023; 88:13009-13021. [PMID: 37649423 DOI: 10.1021/acs.joc.3c01121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The remote groups in N-heterocyclic carbene (NHC) ligands have a significant influence on metal-catalyzed reactions. We examine how remote bulkiness, electronic groups, and expanded-ring NHCs (ER-NHCs) influence alkene reactivity and regioselectivity toward hydrocupration using density functional theory calculations. The impact of remote steric bulkiness on the Cu-H insertion rate is analyzed, revealing a strong correlation between the steric substituent constant and rate ratio, where a bulky group increases the rate due to reduced steric effects in the transition state (TS). The steric properties of the examined catalysts (with a remote group R2 = CPh3, CHPh2, CH2Ph, CH3, and H) and their corresponding TSs are found to be modulated greatly by the remote steric substitution group and the ring size of the NHC ligand. Enhanced bulkiness enhances the nucleophilic Cu-H moiety. The remote electronic groups have a smaller impact on insertion barrier compared to that of steric hindrance. Furthermore, ER-NHC exploration indicates that NHCs with over five-membered rings have a significantly negative influence on the reaction rate. Finally, with a highly bulky group (R2 = CPh3), anti-Markovnikov insertion preference is attributed to high interaction energy and improved steric properties. Overall, our findings here provide valuable insights for the development of a more effective catalyst in metal-catalyzed reactions.
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Affiliation(s)
- Aqeel A Hussein
- Department of Medical Laboratory Science, College of Science, Komar University of Science and Technology, Sulaymaniyah, Kurdistan Region 46001, Iraq
- Department of Biology, College of Science, Al-Qasim Green University, Al-Qassim, Babylon 51013, Iraq
| | - Azhar Ariffin
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia
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2
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Fernandez de Larrinoa P, Parmentier J, Kichler A, Achard T, Dontenwill M, Herold-Mende C, Fournel S, Frisch B, Heurtault B, Bellemin-Laponnaz S. Triphenylphosphonium-functionalized N-heterocyclic carbene platinum complexes [(NHC-TPP +)Pt] induce cell death of human glioblastoma cancer stem cells. Int J Pharm 2023:123071. [PMID: 37244463 DOI: 10.1016/j.ijpharm.2023.123071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/05/2023] [Accepted: 05/22/2023] [Indexed: 05/29/2023]
Abstract
A growing body of experimental and clinical evidence suggests that rare cell populations, known as cancer stem cells (CSCs), play an important role in the development and therapeutic resistance of several cancers, including glioblastoma. Elimination of these cells is therefore of paramount importance. Interestingly, recent results have shown that the use of drugs that specifically disrupt mitochondria or induce mitochondria-dependent apoptosis can efficiently kill cancer stem cells. In this context, a novel series of platinum(II) complexes bearing N-heterocyclic carbene (NHC) of the type [(NHC)PtI2(L)] modified with the mitochondria targeting group triphenylphosphonium were synthesized. After a complete characterization of the platinum complexes, the cytotoxicity against two different cancer cell lines, including a cancer stem cell line, was investigated. The best compound reduced the cell viability of both cell lines by 50% in the mM range, with an approximately 300-fold higher anticancer activity on the CSC line compared to oxaliplatin. Finally, mechanistic studies showed that the triphenylphosphonium functionalized platinum complexes significantly altered mitochondrial function and also induced atypical cell death.
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Affiliation(s)
- Patricia Fernandez de Larrinoa
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR7504, Université de Strasbourg & CNRS, 23 Rue du Loess, F-67083 Strasbourg, France; 3Bio Team, LCAMB, UMR7199 Université de Strasbourg & CNRS, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch Cedex, France
| | - Jordan Parmentier
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR7504, Université de Strasbourg & CNRS, 23 Rue du Loess, F-67083 Strasbourg, France
| | - Antoine Kichler
- 3Bio Team, LCAMB, UMR7199 Université de Strasbourg & CNRS, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch Cedex, France
| | - Thierry Achard
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR7504, Université de Strasbourg & CNRS, 23 Rue du Loess, F-67083 Strasbourg, France
| | - Monique Dontenwill
- UMR7021 Université de Strasbourg & CNRS, Faculté de Pharmacie, 74 route de Rhin, 67401 Illkirch Cedex, France
| | - Christel Herold-Mende
- University Hospital Heidelberg, Department of Neurosurgery, Division of Neurosurgical Research, Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Sylvie Fournel
- 3Bio Team, LCAMB, UMR7199 Université de Strasbourg & CNRS, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch Cedex, France
| | - Benoît Frisch
- 3Bio Team, LCAMB, UMR7199 Université de Strasbourg & CNRS, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch Cedex, France
| | - Béatrice Heurtault
- 3Bio Team, LCAMB, UMR7199 Université de Strasbourg & CNRS, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch Cedex, France.
| | - Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR7504, Université de Strasbourg & CNRS, 23 Rue du Loess, F-67083 Strasbourg, France.
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3
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Jia T, Diane O, Ghosh D, Skander M, Fontaine G, Retailleau P, Poupon J, Bignon J, Moulai Siasia YM, Servajean V, Hue N, Betzer JF, Marinetti A, Bombard S. Anti-Cancer and Radio-Sensitizing Properties of New Bimetallic ( N-Heterocyclic Carbene)-Amine-Pt(II) Complexes. J Med Chem 2023; 66:6836-6848. [PMID: 37191470 DOI: 10.1021/acs.jmedchem.3c00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Bioactive NHC-transition metal complexes have shown promise as anti-cancer agents, but their potential use as radiosensitizers has been neglected so far. We disclose here a new series of bimetallic platinum(II) complexes displaying NHC-type bridging ligands, (bis-NHC)[trans-Pt(RNH2)I2]2, that have been synthesized via a simple, two-step procedure. They display cytotoxicity in the micromolar range on cancerous cell lines, accumulate in cells, and bind to genomic DNA, by inducing DNA damages. Notably, these bimetallic complexes demonstrate significant radiosensitizing effects on both ovarian cells A2780 and nonsmall lung carcinoma cells H1299. Further investigations revealed that bimetallic species make irradiation-induced DNA damages more persistent by inhibiting repair mechanisms. Indeed, a higher and persistent accumulation of both γ-H2AX and 53BP1 foci post-irradiation was detected, in the presence of the NHC-Pt complexes. Overall, we provide the first in vitro evidence for the radiosensitizing properties of NHC-platinum complexes, which suggests their potential use in combined chemo-radio therapy protocols.
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Affiliation(s)
- Tao Jia
- CNRS-UMR9187, INSERM U1196, PSL-Research University, Orsay 91405, France
- CNRS-UMR9187, INSERM U1196, Université Paris Saclay, Orsay 91405, France
| | - Oumar Diane
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Deepanjan Ghosh
- CNRS-UMR9187, INSERM U1196, PSL-Research University, Orsay 91405, France
- CNRS-UMR9187, INSERM U1196, Université Paris Saclay, Orsay 91405, France
| | - Myriem Skander
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Gaelle Fontaine
- CNRS-UMR9187, INSERM U1196, PSL-Research University, Orsay 91405, France
- CNRS-UMR9187, INSERM U1196, Université Paris Saclay, Orsay 91405, France
| | - Pascal Retailleau
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Joël Poupon
- Hôpital Lariboisière, Laboratoire de Toxicologie Biologique, 2 rue Ambroise Paré, Paris 75475, France
| | - Jérôme Bignon
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Ytabelle Maga Moulai Siasia
- CNRS-UMR9187, INSERM U1196, PSL-Research University, Orsay 91405, France
- CNRS-UMR9187, INSERM U1196, Université Paris Saclay, Orsay 91405, France
| | - Vincent Servajean
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Nathalie Hue
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Jean-François Betzer
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Angela Marinetti
- CNRS-UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, Gif-sur-Yvette 91198, France
| | - Sophie Bombard
- CNRS-UMR9187, INSERM U1196, PSL-Research University, Orsay 91405, France
- CNRS-UMR9187, INSERM U1196, Université Paris Saclay, Orsay 91405, France
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4
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Lee B, Phillips AD, Hanif M, Söhnel T, Hartinger CG. Triazolyl- vs Pyridyl-Functionalized N-Heterocyclic Carbene Complexes: Impact of the Pendant N-Donor Ligand on Intramolecular C-C Bond Formation. ACS ORGANIC & INORGANIC AU 2022; 2:511-524. [PMID: 36510612 PMCID: PMC9732886 DOI: 10.1021/acsorginorgau.2c00035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 12/16/2022]
Abstract
Organometallic Rh(Cp*) (Cp* = η5-pentamethylcyclopentadienyl) complexes with monodentate N-heterocyclic carbene (NHC) ligands bearing a pendant anthracenyl substituent have been shown to undergo intramolecular C-C coupling reactions. Herein, two bidentate NHC ligands substituted with pyridyl or triazolyl donor groups were prepared along with the corresponding MII/III (M = RuII, OsII, RhIII, IrIII) complexes. While the Rh(Cp*) complex featuring an NHC-triazole bidentate ligand underwent the equivalent reaction as the monodentate Rh(NHC) complex, i.e., it formed a polydentate ligand, the pyridyl-pendant derivative was unequivocally shown to be unreactive. This contrasting behavior was further investigated by density functional theory (DFT) calculations that highlighted significant differences between the two types of Rh(III) complexes with pendant pyridyl or triazolyl N-coordinating groups. Modeling of the reaction pathways suggests that the initial formation of a dicationic Rh(III) species is unfavorable and that the internal ligand transformation proceeds first by dissociation of the coordinated N atom of the pendant group from the Rh center. After the formation of a neutral η4-fulvene ligand via combined proton/single electron transfer, a cycloaddition occurs between the exo-ene bond of fulvene and the 9' and 10' positions on the pendant anthracenyl group. The resulting experimental UV-visible spectrum recorded in methanol of the polydentate triazolyl-based Rh species revealed the loss of the vibronic coupling typically associated with an anthracenyl functional group. Moreover, TD-DFT modeling indicates the presence of an equilibrium process whereby the N-coordination of the pendant triazolyl group to the RhIII center appears to be highly labile. Charge decomposition analysis (CDA) of the DFT-modeled species with the dissociated triazolyl group revealed a pseudo-η3-allylic interaction between the π-type MOs of the transformed anthracenyl group and the RhIII center; thus, the singly attached chelating ligand is classified as having rare nonadenticity.
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Affiliation(s)
- Betty
Y.T. Lee
- School
of Chemical Sciences, The University of
Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Andrew D. Phillips
- School
of Chemistry, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland,
| | - Muhammad Hanif
- School
of Chemical Sciences, The University of
Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Tilo Söhnel
- School
of Chemical Sciences, The University of
Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Christian G. Hartinger
- School
of Chemical Sciences, The University of
Auckland, Private Bag 92019, Auckland 1142, New Zealand,
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5
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Polyethylenimine, an Autophagy-Inducing Platinum-Carbene-Based Drug Carrier with Potent Toxicity towards Glioblastoma Cancer Stem Cells. Cancers (Basel) 2022; 14:cancers14205057. [PMID: 36291841 PMCID: PMC9599868 DOI: 10.3390/cancers14205057] [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: 09/23/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/17/2022] Open
Abstract
The difficulty involved in the treatment of many tumours due to their recurrence and resistance to chemotherapy is tightly linked to the presence of cancer stem cells (CSCs). This CSC sub-population is distinct from the majority of cancer cells of the tumour bulk. Indeed, CSCs have increased mitochondrial mass that has been linked to increased sensitivity to mitochondrial targeting compounds. Thus, a platinum-based polyethylenimine (PEI) polymer-drug conjugate (PDC) was assessed as a potential anti-CSC therapeutic since it has previously displayed mitochondrial accumulation. Our results show that CSCs have increased specific sensitivity to the PEI carrier and to the PDC. The mechanism of cell death seems to be necrotic in nature, with an absence of apoptotic markers. Cell death is accompanied by the induction of a protective autophagy. The interference in the balance of this pathway, which is highly important for CSCs, may be responsible for a partial reversion of the stem-like phenotype observed with prolonged PEI and PDC treatment. Several markers also indicate the cell death mode to be capable of inducing an anti-cancer immune response. This study thus indicates the potential therapeutic perspectives of polycations against CSCs.
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6
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Farasat A, Labella L, Marchetti F, Samaritani S. Addition of aliphatic, secondary amines to coordinated isonitriles. N-acyclic carbene (NAC) platinum(II) complexes from trans-[Pt(μ-Cl)Cl(PPh3)]2. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121062] [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]
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7
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Karaca EÖ, Çiftçi O, Özdemir İ, Karabıyık H, Karabıyık H, Gürbüz N, Özdemir İ, Mansour L, Youssef A, Hamdi N. Crystal structure, optical properties, spectroscopic characterization and density functional theory studies of a new rhodium(i)-imidazolidin-2-ylidene complexes: Synthesis, characterization and cytotoxic properties. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Maliszewski BP, Ritacco I, Beliš M, Hashim II, Tzouras NV, Caporaso L, Cavallo L, Van Hecke K, Nahra F, Cazin CSJ, Nolan SP. A green route to platinum N-heterocyclic carbene complexes: mechanism and expanded scope. Dalton Trans 2022; 51:6204-6211. [PMID: 35357386 DOI: 10.1039/d2dt00504b] [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
A sustainable and facile weak-base synthetic route to platinum N-heterocyclic carbene (NHC) complexes is disclosed. The mechanism of this reaction is also elucidated via experimental and computational investigations. This straightforward protocol is then used for the synthesis of novel Pt(II)-NHC complexes and its utility is further explored to access key Pt(0)-NHC precatalysts.
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Affiliation(s)
- Benon P Maliszewski
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium. .,VITO (Flemish Institute for Technological Research), Separation and Conversion Technology, Boeretang 200, 2400 Mol, Belgium
| | - Ida Ritacco
- Dipartimento di Chimica e Biologia, Univeristy of Salerno, Via Papa Paolo Giovanni II, Fisciano, I-84084, Italy
| | - Marek Beliš
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium.
| | - Ishfaq Ibni Hashim
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium.
| | - Nikolaos V Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium.
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia, Univeristy of Salerno, Via Papa Paolo Giovanni II, Fisciano, I-84084, Italy
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium.
| | - Fady Nahra
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium. .,VITO (Flemish Institute for Technological Research), Separation and Conversion Technology, Boeretang 200, 2400 Mol, Belgium
| | - Catherine S J Cazin
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium.
| | - Steven P Nolan
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium.
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9
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Bissessar D, Egly J, Achard T, Steffanut P, Mauro M, Bellemin-Laponnaz S. A stable and photoreactive copper iodide cubane suitable for direct post‐functionalization. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Damien Bissessar
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | - Julien Egly
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | - Thierry Achard
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | | | - Matteo Mauro
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
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10
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Bian M, Fan R, Yang Z, Chen Y, Xu Z, Lu Y, Liu W. Pt(II)-NHC Complex Induces ROS-ERS-Related DAMP Balance to Harness Immunogenic Cell Death in Hepatocellular Carcinoma. J Med Chem 2022; 65:1848-1866. [PMID: 35025488 DOI: 10.1021/acs.jmedchem.1c01248] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Immunogenic cell death (ICD) can engage a specific immune response and establish a long-term immunity in hepatocellular carcinoma (HCC). Herein, we design and synthesize a series of Pt(II)-N-heterocyclic carbene (Pt(II)-NHC) complexes derived from 4,5-diarylimidazole, which show strong anticancer activities in vitro. Among them, 2c displays much higher anticancer activities than cisplatin and other Pt(II)-NHC complexes, especially in HCC cancer cells. In addition, we find that 2c is a type II ICD inducer, which can successfully induce endoplasmic reticulum stress (ERS) accompanied by reactive oxygen species (ROS) generation and finally lead to the release of damage-associated molecular patterns (DAMPs) in HCC cells. Importantly, 2c shows a great anti-HCC potential in a vaccination mouse model and leads to the in vivo immune cell activation in the CCl4-induced liver injury model.
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Affiliation(s)
- Mianli Bian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Rong Fan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Zhibin Yang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Yanan Chen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Zhongren Xu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Yunlong Lu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Wukun Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, P. R. China
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11
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Flores JC, Silbestri GF, de Jesús E. Water-soluble transition-metal complexes with hydrophilic N-heterocyclic carbene ligands for aqueous-phase applications. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Belen’kii LI, Gazieva GA, Evdokimenkova YB, Soboleva NO. The literature of heterocyclic chemistry, Part XX, 2020. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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13
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Scattolin T, Valente G, Luzietti L, Piva M, Demitri N, Lampronti I, Gambari R, Visentin F. Synthesis and anticancer activity of Pt(0)‐olefin complexes bearing 1,3,5‐triaza‐7‐phosphaadamantane and
N
‐heterocyclic carbene ligands. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6438] [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)
- Thomas Scattolin
- Dipartimento di Scienze Molecolari e Nanosistemi Università Ca' Foscari Venezia‐Mestre Italy
| | - Giorgia Valente
- Dipartimento di Scienze Molecolari e Nanosistemi Università Ca' Foscari Venezia‐Mestre Italy
| | - Lara Luzietti
- Dipartimento di Scienze della Vita e Biotecnologie Università degli Studi di Ferrara Ferrara Italy
| | - Michele Piva
- Dipartimento di Scienze Molecolari e Nanosistemi Università Ca' Foscari Venezia‐Mestre Italy
| | - Nicola Demitri
- S.S. 14 Km 163.5 in Area Science Park Elettra–Sincrotrone Trieste Trieste Italy
| | - Ilaria Lampronti
- Dipartimento di Scienze della Vita e Biotecnologie Università degli Studi di Ferrara Ferrara Italy
| | - Roberto Gambari
- Dipartimento di Scienze della Vita e Biotecnologie Università degli Studi di Ferrara Ferrara Italy
| | - Fabiano Visentin
- Dipartimento di Scienze Molecolari e Nanosistemi Università Ca' Foscari Venezia‐Mestre Italy
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14
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Peng K, Liang BB, Liu W, Mao ZW. What blocks more anticancer platinum complexes from experiment to clinic: Major problems and potential strategies from drug design perspectives. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214210] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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Zhao S, Yang Z, Jiang G, Huang S, Bian M, Lu Y, Liu W. An overview of anticancer platinum N-heterocyclic carbene complexes. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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16
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Voloshkin VA, Tzouras NV, Nolan SP. Recent advances in the synthesis and derivatization of N-heterocyclic carbene metal complexes. Dalton Trans 2021; 50:12058-12068. [PMID: 34519733 DOI: 10.1039/d1dt01847g] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
N-heterocyclic carbene (NHC) metal complexes have gained an incredible amount of attention in the course of the last two decades and have become indispensable as an intricate part of a plethora of applications. The areas of their synthesis and derivatization are constantly evolving and bring new, more sustainable, cost-effective and simpler approaches to the design of existing and next generation catalysts and materials. This article provides an overview of the latest developments, focusing on those which have appeared during the last two years.
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Affiliation(s)
- Vladislav A Voloshkin
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Nikolaos V Tzouras
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
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17
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Marichev KO, Patil SA, Patil SA, Heras Martinez HM, Bugarin A. N-heterocyclic carbene metal complexes as therapeutic agents: a patent review. Expert Opin Ther Pat 2021; 32:47-61. [PMID: 34365884 DOI: 10.1080/13543776.2021.1965992] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Besides the well-established catalytic, synthetic and materials related applications of N-heterocyclic carbene (NHC) metal complexes, their use as therapeutics deserves a special attention. Many literature reports indicate that their bioactivity is superior to other organometallic compounds. The main focus of patent disclosures in this area is the elucidation of anticancer and antimicrobial activities of NHC transition metal complexes. Nonetheless, a variety of other biological activities have been reported in non-patent literature to date. AREA COVERED Patent literature on NHC metal complexes with focus on their therapeutic applications and relationship structure-biological activity disclosed since the first issued patent (2010) up to now (2021). The information was collected from publicly available data sources (e.g. Chemical Abstracts, MedLine, Reaxys, and SciFinder). EXPERT OPINION Although the first reports on biological applications of NHC metal complexes originate in 2000s, the greatest progress in this area was made only in the past decade. A growing number of patent disclosures indicates that structural design of new NHC metal complexes is crucial for their successful use in both medicine and biochemistry. In the next few years, we expect to see more stable and effective NHC metal complexes as potential therapeutic agents and perhaps in clinical trials.
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Affiliation(s)
| | - Siddappa A Patil
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, India
| | - Shivaputra A Patil
- Pharmaceutical Sciences Department, College of Pharmacy, Rosalind Franklin University of Medicine & Science, North Chicago, IL, USA
| | | | - Alejandro Bugarin
- Department of Chemistry & Physics, Florida Gulf Coast University, Fort Myers, FL, USA
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18
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Bulak E, Dogan I, Varnali T, Schwederski B, Gunal SE, Lönnecke P, Bubrin M, Kaim W. An Acyclic Diaminocarbene Complex of Platinum Formed by Desulfurization of 1,3‐Bis(3‐methylpyridin‐2‐yl)thiourea. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ece Bulak
- Bogazici University Department of Chemistry, Bebek 34342 Istanbul Turkey
| | - Ilknur Dogan
- Bogazici University Department of Chemistry, Bebek 34342 Istanbul Turkey
| | - Tereza Varnali
- Bogazici University Department of Chemistry, Bebek 34342 Istanbul Turkey
| | - Brigitte Schwederski
- University of Stuttgart Institute of Inorganic Chemistry Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Sule Erol Gunal
- Bogazici University Department of Chemistry, Bebek 34342 Istanbul Turkey
| | - Peter Lönnecke
- University of Leipzig Fakultät für Chemie und Mineralogie Johannisallee 29 04103 Leipzig Germany
| | - Martina Bubrin
- University of Stuttgart Institute of Inorganic Chemistry Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Kaim
- University of Stuttgart Institute of Inorganic Chemistry Pfaffenwaldring 55 70569 Stuttgart Germany
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19
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Bonfiglio A, McCartin C, Carrillo U, Cebrián C, Gros PC, Fournel S, Kichler A, Daniel C, Mauro M. Ir
III
−Pyridoannelated N‐Heterocyclic Carbene Complexes: Potent Theranostic Agents via Mitochondria Targeting. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Anna Bonfiglio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67083 Strasbourg France
| | - Conor McCartin
- 3Bio Team, CAMB UMR7199 CNRS-University of Strasbourg Faculté de Pharmacie 74 route du Rhin 67401 Illkirch cedex France
| | | | | | | | - Sylvie Fournel
- 3Bio Team, CAMB UMR7199 CNRS-University of Strasbourg Faculté de Pharmacie 74 route du Rhin 67401 Illkirch cedex France
| | - Antoine Kichler
- 3Bio Team, CAMB UMR7199 CNRS-University of Strasbourg Faculté de Pharmacie 74 route du Rhin 67401 Illkirch cedex France
| | - Chantal Daniel
- Laboratoire de Chimie Quantique Institut de Chimie de Strasbourg UMR7177 Université de Strasbourg-CNRS 4 Rue Blaise Pascal 67000 Strasbourg France
| | - Matteo Mauro
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67083 Strasbourg France
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20
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Sandwich complexes of ruthenium, and osmium with group 13 analogues of N-heterocyclic carbene ligands: Efficient future complexes to reduce carbon monoxide poisoning. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Chellan P, Avery VM, Duffy S, Land KM, Tam CC, Kim JH, Cheng LW, Romero-Canelón I, Sadler PJ. Bioactive half-sandwich Rh and Ir bipyridyl complexes containing artemisinin. J Inorg Biochem 2021; 219:111408. [PMID: 33826972 DOI: 10.1016/j.jinorgbio.2021.111408] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/21/2021] [Accepted: 02/21/2021] [Indexed: 02/06/2023]
Abstract
Reaction of dihydroartemisinin (DHA) with 4-methyl-4'-carboxy-2,2'-bipyridine yielded the new ester derivative L1. Six novel organometallic half-sandwich chlorido Rh(III) and Ir(III) complexes (1-6) containing pentamethylcyclopentadienyl, (Cp*), tetramethylphenylcyclopentadienyl (Cpxph), or tetramethylbiphenylcyclopentadienyl (Cpxbiph), and N,N-chelated bipyridyl group of L1, have been synthesized and characterized. The complexes were screened for inhibitory activity against the Plasmodium falciparum 3D7 (sensitive), Dd2 (multi-drug resistant) and NF54 late stage gametocytes (LSGNF54), the parasite strain Trichomonas vaginalis G3, as well as A2780 (human ovarian carcinoma), A549 (human alveolar adenocarcinoma), HCT116 (human colorectal carcinoma), MCF7 (human breast cancer) and PC3 (human prostate cancer) cancer cell lines. They show nanomolar antiplasmodial activity, outperforming chloroquine and artemisinin. Their activities were also comparable to dihydroartemisinin. As anticancer agents, several of the complexes showed high inhibitory effects, with Ir(III) complex 3, containing the tetramethylbiphenylcyclopentadienyl ligand, having similar IC50 values (concentration for 50% of maximum inhibition of cell growth) as the clinical drug cisplatin (1.06-9.23 μM versus 0.24-7.2 μM, respectively). Overall, the iridium complexes (1-3) are more potent compared to the rhodium derivatives (4-6), and complex 3 emerges as the most promising candidate for future studies.
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Affiliation(s)
- Prinessa Chellan
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
| | - Vicky M Avery
- Discovery Biology, Griffith University, Nathan, Queensland 4111, Australia
| | - Sandra Duffy
- Discovery Biology, Griffith University, Nathan, Queensland 4111, Australia
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, United States of America
| | - Christina C Tam
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, United States of America
| | - Jong H Kim
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, United States of America
| | - Luisa W Cheng
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, United States of America
| | | | - Peter J Sadler
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
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22
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Jia C, Deacon GB, Zhang Y, Gao C. Platinum(IV) antitumor complexes and their nano-drug delivery. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213640] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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23
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Anticancer and antibacterial properties of trinuclear Cu(I), Ag(I) and Au(I) macrocyclic NHC/urea complexes. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121643] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Wang Y, Zhang B, Guo S. Transition Metal Complexes Supported by N‐Heterocyclic Carbene‐Based Pincer Platforms: Synthesis, Reactivity and Applications. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000911] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yidan Wang
- Department of Chemistry Capital Normal University Beijing 100048 China
| | - Bo Zhang
- Department of Chemistry Capital Normal University Beijing 100048 China
| | - Shuai Guo
- Department of Chemistry Capital Normal University Beijing 100048 China
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25
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Tham MJR, Babak MV, Ang WH. PlatinER: A Highly Potent Anticancer Platinum(II) Complex that Induces Endoplasmic Reticulum Stress Driven Immunogenic Cell Death. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Max Jing Rui Tham
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
| | - Maria V. Babak
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
- Department of Chemistry City University of Hong Kong 83 Tat Chee Avenue 999077 Hong Kong SAR P. R. China
| | - Wee Han Ang
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
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26
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Tham MJR, Babak MV, Ang WH. PlatinER: A Highly Potent Anticancer Platinum(II) Complex that Induces Endoplasmic Reticulum Stress Driven Immunogenic Cell Death. Angew Chem Int Ed Engl 2020; 59:19070-19078. [DOI: 10.1002/anie.202008604] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Max Jing Rui Tham
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
| | - Maria V. Babak
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
- Department of Chemistry City University of Hong Kong 83 Tat Chee Avenue 999077 Hong Kong SAR P. R. China
| | - Wee Han Ang
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
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27
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Bonfiglio A, Mauro M. Phosphorescent
Tris
‐Bidentate Ir
III
Complexes with N‐Heterocyclic Carbene Scaffolds: Structural Diversity and Optical Properties. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000509] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anna Bonfiglio
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67000 Strasbourg France
| | - Matteo Mauro
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67000 Strasbourg France
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28
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Bouché M, Hognon C, Grandemange S, Monari A, Gros PC. Recent advances in iron-complexes as drug candidates for cancer therapy: reactivity, mechanism of action and metabolites. Dalton Trans 2020; 49:11451-11466. [PMID: 32776052 DOI: 10.1039/d0dt02135k] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this perspective, we discuss iron-complexes as drug candidates that are promising alternatives to conventional platinum-based chemotherapies owing to their broad range of reactivities and to the targeting of different biological systems. Breakthroughs in the comprehension of iron complexes' structure-activity relationship contributed to the clarification of their metabolization pathways, sub-cellular localization and influence on iron homeostasis, while enlightening the primary molecular targets of theses likely multi-target metallodrugs. Both the antiproliferative activity and elevated safety index observed among the family of iron complexes showed encouraging results as per their therapeutic potential and selectivity also with the aim of reducing chemotherapy side-effects, and facilitated more pre-clinical investigations. The purpose of this perspective is to summarize the recent advances that contributed in unveiling the intricate relationships between the structural modifications on iron-complexes and their reactivity, cellular trafficking and global mechanisms of action to broaden their use as anticancer drugs and advance to clinical evaluation.
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Affiliation(s)
- Mathilde Bouché
- Université de Lorraine, CNRS, L2CM UMR 7053, F-54000 Nancy, France.
| | - Cécilia Hognon
- Université de Lorraine, CNRS, LPCT UMR 7019, F-54000 Nancy, France
| | | | - Antonio Monari
- Université de Lorraine, CNRS, LPCT UMR 7019, F-54000 Nancy, France
| | - Philippe C Gros
- Université de Lorraine, CNRS, L2CM UMR 7053, F-54000 Nancy, France.
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29
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N-Heterocyclic Carbene Platinum(IV) as Metallodrug Candidates: Synthesis and 195Pt NMR Chemical Shift Trend. Molecules 2020; 25:molecules25143148. [PMID: 32660104 PMCID: PMC7397185 DOI: 10.3390/molecules25143148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 11/24/2022] Open
Abstract
A series of octahedral platinum(IV) complexes functionalized with both N-heterocyclic carbene (NHC) ligands were synthesized according to a straightforward procedure and characterized. The coordination sphere around the metal was varied, investigating the influence of the substituted NHC and the amine ligand in trans position to the NHC. The influence of those structural variations on the chemical shift of the platinum center were evaluated by 195Pt NMR. This spectroscopy provided more insights on the impact of the structural changes on the electronic density at the platinum center. Investigation of the in vitro cytotoxicities of representative complexes were carried on three cancer cell lines and showed IC50 values down to the low micromolar range that compare favorably with the benchmark cisplatin or their platinum(II) counterparts bearing NHC ligands.
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30
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Zhang B, Yan X, Guo S. Synthesis of Well-Defined High-Valent Palladium Complexes by Oxidation of Their Palladium(II) Precursors. Chemistry 2020; 26:9430-9444. [PMID: 32227537 DOI: 10.1002/chem.202001074] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/27/2020] [Indexed: 12/24/2022]
Abstract
The last decade has witnessed the rapid development of high-valent Pd-involved organic transformations. This has also led to a steadily growing number of publications concerning the preparation of isolable and characterizable palladium(III) and palladium(IV) complexes. A variety of one-electron and two-electron oxidants have been employed to give access to high-oxidation-state Pd compounds. Undoubtedly, the study of these stoichiometric reactions has great implications for relevant Pd-mediated catalysis. In this minireview, the focus is on the synthetic approaches to structurally determined PdIII/IV complexes starting from their PdII precursors, and the advances in this research area from early 2010 to late 2019 will be highlighted. Chemical oxidations exploiting various oxidizing agents including 1) hypervalent iodine reagents; 2) halogens; 3) electrophilic fluorination reagents; 4) alkyl/aryl halides; 5) ferrocenium salts; 6) peroxides/O2 ; 7) sulfonyl chlorides; and 8) others are covered. A "greener" electrooxidation manner has also been reviewed.
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Affiliation(s)
- Bo Zhang
- Department of Chemistry, Capital Normal University, Beijing, 100048, P.R. China
| | - Xuechao Yan
- Department of Chemistry, Capital Normal University, Beijing, 100048, P.R. China
| | - Shuai Guo
- Department of Chemistry, Capital Normal University, Beijing, 100048, P.R. China
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31
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Verron R, Achard T, Seguin C, Fournel S, Bellemin-Laponnaz S. Synthesis and Characterization of N-Heterocyclic Carbene Dithiocarbamate Platinum Complexes with Antitumoral Activity. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000329] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Raphaël Verron
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS); Université de Strasbourg-CNRS UMR 7504; 23 rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Thierry Achard
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS); Université de Strasbourg-CNRS UMR 7504; 23 rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Cendrine Seguin
- Faculté de Pharmacie; Université de Strasbourg-CNRS UMR 7199; 74 Route du Rhin, BP 6002 4 67401 Illkirch Cedex France
| | - Sylvie Fournel
- Faculté de Pharmacie; Université de Strasbourg-CNRS UMR 7199; 74 Route du Rhin, BP 6002 4 67401 Illkirch Cedex France
| | - Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS); Université de Strasbourg-CNRS UMR 7504; 23 rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
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32
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Chen W, Egly J, Poblador-Bahamonde AI, Maisse-Francois A, Bellemin-Laponnaz S, Achard T. Synthesis, characterization, catalytic and biological application of half-sandwich ruthenium complexes bearing hemilabile (κ2-C,S)-thioether-functionalised NHC ligands. Dalton Trans 2020; 49:3243-3252. [PMID: 32096513 DOI: 10.1039/c9dt04825a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A series of cationic Ru(ii)(η6-p-cymene) complexes with thioether-functionalised N-heterocyclic carbene ligands have been prepared and fully characterized. Steric and electronic influence of the R thioether substituent on the coordination of the sulfur atom was investigated. The molecular structure of three of them has been determined by means of X-ray diffractrometry and confirmed the bidentate (κ2-C,S) coordination mode of the ligand. Interestingly, only a single diastereomer, as an enantiomeric couple, was observed in the solid state for complexes 1c, 1i and 1j. DFT calculations established a low energy inversion barrier between the two diastereomers through a sulfur pyramidal inversion pathway with R donating group while a dissociative/associative mechanism is more likely with R substituents that contain electron withdrawing group, thus suggesting that the only species observed by the 1H-NMR correspond to an average resonance position of a fluxional mixtures of isomers. All these complexes were found to catalyse the oxydant-free double dehydrogenation of primary amine into nitrile. Ru complex bearing NHC-functionalised S-tBu group was further investigated in a wide range of amines and was found more selective for alkyl amine substrates than for benzylamine derivatives. Finally, preliminary results of the biological effects on various human cancer cells of four selected Ru complexes are reported.
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Affiliation(s)
- Weiguang Chen
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR7504, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France.
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33
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Maliszewski BP, Tzouras NV, Guillet SG, Saab M, Beliš M, Van Hecke K, Nahra F, Nolan SP. A general protocol for the synthesis of Pt-NHC (NHC = N-heterocyclic carbene) hydrosilylation catalysts. Dalton Trans 2020; 49:14673-14679. [DOI: 10.1039/d0dt03480k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A simple synthetic route, making use of inexpensive and environment-friendly solvent/reagents, is described leading to [Pt(NHC)(L)Cl2] and [Pt(NHC)(dvtms)] (L = DMS, DMSO, Py; dvtms = divynyltetramethylsiloxane) catalysts.
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Affiliation(s)
- Benon P. Maliszewski
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Nikolaos V. Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Sébastien G. Guillet
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Marina Saab
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Marek Beliš
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - Fady Nahra
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
- VITO (Flemish Institute for Technological Research)
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable Chemistry
- Ghent University
- 9000 Ghent
- Belgium
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34
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Rothemund M, Bär SI, Rehm T, Kostrhunova H, Brabec V, Schobert R. Antitumoral effects of mitochondria-targeting neutral and cationic cis-[bis(1,3-dibenzylimidazol-2-ylidene)Cl(L)]Pt(ii) complexes. Dalton Trans 2020; 49:8901-8910. [DOI: 10.1039/d0dt01664k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
cis-[Bis(1,3-dibenzylimidazol-2-ylidene)PtIICl(L)] complexes target mitochondria regardless of charge and size of ligands L, yet show different anticancer effects.
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Affiliation(s)
| | - Sofia I. Bär
- Organic Chemistry Laboratory
- University of Bayreuth
- 95440 Bayreuth
- Germany
| | - Tobias Rehm
- Organic Chemistry Laboratory
- University of Bayreuth
- 95440 Bayreuth
- Germany
| | - Hana Kostrhunova
- Czech Academy of Sciences
- Institute of Biophysics
- CZ-61265
- Czech Republic
| | - Viktor Brabec
- Czech Academy of Sciences
- Institute of Biophysics
- CZ-61265
- Czech Republic
| | - Rainer Schobert
- Organic Chemistry Laboratory
- University of Bayreuth
- 95440 Bayreuth
- Germany
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35
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Bonfiglio A, Magra K, Cebrián C, Polo F, Gros PC, Mercandelli P, Mauro M. Red-emitting neutral rhenium(i) complexes bearing a pyridyl pyridoannelated N-heterocyclic carbene. Dalton Trans 2020; 49:3102-3111. [DOI: 10.1039/c9dt04890a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two novel neutral rhenium(i) tricarbonyl complexes bearing a pyridoannelated N-heterocyclic carbene are synthetized and fully characterized, which display red photoluminescence arising from a triplet excited state with ligand centered character.
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Affiliation(s)
- Anna Bonfiglio
- Université de Strasbourg
- CNRS
- Institut de Physique et Chimie des Matériaux de Strasbourg
- UMR 7504
- 67034 Strasbourg
| | - Kévin Magra
- Université de Lorraine
- CNRS
- L2CM
- F-57000 Metz
- France
| | | | - Federico Polo
- Ca’ Foscari University of Venice
- Department of Molecular Sciences and Nanosystems
- 30172 Venezia
- Italy
| | | | | | - Matteo Mauro
- Université de Strasbourg
- CNRS
- Institut de Physique et Chimie des Matériaux de Strasbourg
- UMR 7504
- 67034 Strasbourg
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