1
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Melis DR, Burgoyne AR, Ooms M, Gasser G. Bifunctional chelators for radiorhenium: past, present and future outlook. RSC Med Chem 2022; 13:217-245. [PMID: 35434629 PMCID: PMC8942221 DOI: 10.1039/d1md00364j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/14/2022] [Indexed: 01/16/2023] Open
Abstract
Targeted radionuclide therapy (TRNT) is an ever-expanding field of nuclear medicine that provides a personalised approach to cancer treatment while limiting toxicity to normal tissues. It involves the radiolabelling of a biological targeting vector with an appropriate therapeutic radionuclide, often facilitated by the use of a bifunctional chelator (BFC) to stably link the two entities. The radioisotopes of rhenium, 186Re (t 1/2 = 90 h, 1.07 MeV β-, 137 keV γ (9%)) and 188Re (t 1/2 = 16.9 h, 2.12 MeV β-, 155 keV γ (15%)), are particularly attractive for radiotherapy because of their convenient and high-abundance β--particle emissions as well as their imageable γ-emissions and chemical similarity to technetium. As a transition metal element with multiple oxidation states and coordination numbers accessible for complexation, there is great opportunity available when it comes to developing novel BFCs for rhenium. The purpose of this review is to provide a recap on some of the past successes and failings, as well as show some more current efforts in the design of BFCs for 186/188Re. Future use of these radionuclides for radiotherapy depends on their cost-effective availability and this will also be discussed. Finally, bioconjugation strategies for radiolabelling biomolecules with 186/188Re will be touched upon.
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Affiliation(s)
- Diana R Melis
- SCK CEN, Belgian Nuclear Research Centre Boeretang 200 BE-2400 Mol Belgium +1 865 341 1413 +32 14 33 32 83
- Chimie ParisTech, Laboratory for Inorganic Chemical Biology, PSL University F-75005 Paris France www.gassergroup.com +33 1 44 27 56 02
| | - Andrew R Burgoyne
- SCK CEN, Belgian Nuclear Research Centre Boeretang 200 BE-2400 Mol Belgium +1 865 341 1413 +32 14 33 32 83
| | - Maarten Ooms
- SCK CEN, Belgian Nuclear Research Centre Boeretang 200 BE-2400 Mol Belgium +1 865 341 1413 +32 14 33 32 83
| | - Gilles Gasser
- Chimie ParisTech, Laboratory for Inorganic Chemical Biology, PSL University F-75005 Paris France www.gassergroup.com +33 1 44 27 56 02
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2
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Siebenmann L, Bolliger R, Braband H, Blacque O, Alberto R. Watching Hydrogens Migrate: Step by Step from [Re I(η 6-C 6H 6) 2] + to [Re III(η 3-C 6H 9)(η 6-C 6H 6)(NCCH 3) 2] 2. Inorg Chem 2022; 61:3683-3689. [PMID: 35168329 DOI: 10.1021/acs.inorgchem.1c03811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Arene substitution reactions in [M(η6-arene)2]0/2+ are well documented for Groups 6 and 8 but are essentially unknown for the manganese triad. Aiming to replace benzene in [ReI(η6-C6H6)2]+, we altered the hapticity of one coordinated benzene, which we found to be tunable stepwise from an η6 to an η3-allyl coordination mode. Reduction of [ReI(η6-C6H6)2]+ with hydrides gives [ReI(η5-C6H7)(η6-C6H6)]. Subsequent addition of acid yields [ReIIIH(η5-C6H7)(η6-C6H6)]+, which converts to [ReI(η4-C6H8)(η6-C6H6)NCCH3]+ in acetonitrile. Further protonation gives the title complex [ReIII(η3-C6H9)(η6-C6H6)(NCCH3)2]2+ by a rhenium-mediated, intramolecular hydride shift. Herein, we present a full mechanistic elucidation of these transformations based on NMR studies, isolation of reaction intermediates, and their full characterizations. The structural feature {ReIII(η6-C6H6)} is unprecedented. Direct arene exchange from [ReI(η6-C6H6)2]+ to [ReI(η6-arene)(η6-C6H6)]+ was found only under strongly acidic conditions in neat arene. The analogous chemistry of the lighter homologue technetium (99Tc) is distinctly different. Treatment of [TcI(η5-C6H7)(η6-C6H6)] with acid in acetonitrile yields only mixtures of [TcI(η6-C6H6)2]+ and [TcII(NCCH3)6]2+.
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Affiliation(s)
- Lukas Siebenmann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Robin Bolliger
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Henrik Braband
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Olivier Blacque
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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3
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Alberto R, Csucker J, Jo DK, Nadeem Q, Blacque O, Fox T, Braband H. An Isoindoline Bridged [M(η6-arene)2]+ (M = Re, 99mTc) ansa-Arenophane and its Dinuclear Macrocycles with Axial Chirality. Dalton Trans 2022; 51:9591-9595. [DOI: 10.1039/d2dt00743f] [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
This work presents a straightforward method for the preparation of an isoindoline bridged [M(arene)2]+ (M = Re, 99mTc) ansa-[3]arenophane. This intramolecular formation of an ansa-complex is accompanied by the intermolecular...
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4
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Gotzmann C, Blacque O, Fox T, Alberto R. [Re(η
6
‐C
6
H
5
‐benzimidazole)
2
]
+
and Derivatives as Dye Mimics; Synthesis, UV Absorption Studies and DFT Calculations. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Carla Gotzmann
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Olivier Blacque
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Thomas Fox
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Roger Alberto
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
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5
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Unkrig W, Zhe F, Tamim R, Oesten F, Kratzert D, Krossing I. Cationic Niobium-Sandwich and Piano-Stool Complexes. Chemistry 2021; 27:758-765. [PMID: 32871041 PMCID: PMC7839738 DOI: 10.1002/chem.202003748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/31/2020] [Indexed: 11/08/2022]
Abstract
The syntheses of the homoleptic bis(arene) niobium cations [Nb(arene)2 ]+ (arene = C6 H3 Me3 , C6 H5 Me) with 16 valence electrons and heteroleptic arene-carbonyl cations [(CO)Nb(arene)2 ]+ (arene = C6 H3 Me3 , C6 H5 Me) and [(arene)M(CO)4 ]+ (arene = C6 H3 Me3 , C6 H6 ) obeying 18 valence electrons are described. Stabilization of these complexes was achieved by using the weakly coordinating anions [Al(ORF )4 ]- or [F{Al(ORF )3 }2 ]- (RF = C(CF3 )3 ). The limits of two synthesis routes starting from neutral Nb(arene)2 (arene = C6 H3 Me3 , C6 H5 Me) or [NEt4 ][M(CO)6 ] (M = Nb, Ta) were investigated. All compounds were analyzed by single crystal X-ray determination, vibrational and NMR spectroscopy. DFT calculations were executed to support the experimental data.
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Affiliation(s)
- Wiebke Unkrig
- Institut für Anorganische und Analytische ChemieAlbert-Ludwigs-Universität FreiburgAlbertstrasse 2179104FreiburgGermany
| | - Fu Zhe
- Institut für Anorganische und Analytische ChemieAlbert-Ludwigs-Universität FreiburgAlbertstrasse 2179104FreiburgGermany
| | - Razan Tamim
- Institut für Anorganische und Analytische ChemieAlbert-Ludwigs-Universität FreiburgAlbertstrasse 2179104FreiburgGermany
| | - Friederike Oesten
- Institut für Anorganische und Analytische ChemieAlbert-Ludwigs-Universität FreiburgAlbertstrasse 2179104FreiburgGermany
| | - Daniel Kratzert
- Institut für Anorganische und Analytische ChemieAlbert-Ludwigs-Universität FreiburgAlbertstrasse 2179104FreiburgGermany
| | - Ingo Krossing
- Institut für Anorganische und Analytische ChemieAlbert-Ludwigs-Universität FreiburgAlbertstrasse 2179104FreiburgGermany
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6
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Hernández‐Valdés D, Fernández‐Terán R, Probst B, Spingler B, Alberto R. CO
2
to CO: Photo‐ and Electrocatalytic Conversion Based on Re(I) Bis‐Arene Frameworks: Synergisms Between Catalytic Subunits. Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel Hernández‐Valdés
- Department of Chemistry University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland
| | - Ricardo Fernández‐Terán
- Department of Chemistry University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland
| | - Benjamin Probst
- Department of Chemistry University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland
| | - Bernhard Spingler
- Department of Chemistry University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland
| | - Roger Alberto
- Department of Chemistry University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland
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7
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Hernández-Valdés D, Wettstein L, Fernández-Terán R, Probst B, Fox T, Spingler B, Nadeem Q, Alberto R. Dynamic dimer-monomer equilibrium in a cycloruthenated complex of [Re(η 6-C 6H 6) 2] . Chem Commun (Camb) 2020; 56:10658-10661. [PMID: 32785303 DOI: 10.1039/d0cc04180g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cycloruthenation is a well known process in organometallic ruthenium chemistry. In this work, we report unprecedented cycloruthenated rhenium bis-arene compounds with planar chirality. In a two-step process, the reaction of acetyl-pyridine with [Re(η6-C6H6)2]+ introduced a pyridinyl-methanol ligand at one of the arene rings. Coordination of [Ru(CO)2Cl2] led to cycloruthenation, and the products were obtained as two diastereomeric pairs of enantiomers. Under basic pH conditions, the two pairs of enantiomers undergo spontaneous and reversible dimerization. The cycloruthenated monomers were fully characterized, and the dimerization process was studied by NMR, IR spectroscopy, and DFT calculations.
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Affiliation(s)
- Daniel Hernández-Valdés
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
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8
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Suremann NF, Meola G, Blacque O, Braband H, Alberto R. Synthesis and Reactivity of the Rhenium Fulvene Sandwich Complex [Re(η 6-C 5H 4CH 2)(η 6-C 6H 6)] +. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00313] [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)
- Nina F. Suremann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Giuseppe Meola
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Olivier Blacque
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Henrik Braband
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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9
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Hernández-Valdés D, Avignon F, Müller P, Meola G, Probst B, Fox T, Spingler B, Alberto R. [Re(η 6-arene) 2] + as a highly stable ferrocene-like scaffold for ligands and complexes. Dalton Trans 2020; 49:5250-5256. [PMID: 32242190 DOI: 10.1039/d0dt00731e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ferrocenes are versatile ligand scaffolds, complexes of which have found numerous applications in catalysis. Structurally similar but of higher redox stabilites are sandwich complexes of the [Re(η6-arene)2]+ type. We report herein routes for conjugating potential ligands to a single or to both arenes in this scaffold. Since the arene rings can freely rotate, the [Re(η6-arene)2]+ has a high degree of structural flexibility. Polypyridyl ligands were successfully introduced. The coordination of Co(ii) to such a model tetrapyridyl-Re(i)-bis-benzene complex produced a bimetallic Re(i)-Co(ii) complex. To show the stability of the resulting architecture, a selected complex was subjected to photocatalytic reactions. It showed good activity in proton reduction over a long time and did not decompose, corroborating its extraordinary stability even under light irradiation. Its activity compares well with the parent catalyst in turn over numbers and frequencies. The supply of electrons limits catalytic turnover frequency at concentrations below ∼10 μM. We also show that other ligands can be introduced along these strategies. The great diversity offered by [Re(η6-arene)2]+ sandwich complexes from a synthetic point allows this concept to be extended to other catalytic processes, comparable to ferrocenes.
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Affiliation(s)
- Daniel Hernández-Valdés
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
| | - Frédéric Avignon
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland. and Département de Chimie, École Normale Supérieure, PSL Research University, 75005 Paris, France
| | - Peter Müller
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
| | - Giuseppe Meola
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
| | - Benjamin Probst
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
| | - Thomas Fox
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland.
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10
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Nadeem Q, Meola G, Braband H, Bolliger R, Blacque O, Hernández‐Valdés D, Alberto R. To Sandwich Technetium: Highly Functionalized Bis‐Arene Complexes [
99m
Tc(η
6
‐arene)
2
]
+
Directly from Water and [
99m
TcO
4
]
−. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qaisar Nadeem
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Giuseppe Meola
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Henrik Braband
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Robin Bolliger
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Olivier Blacque
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | | | - Roger Alberto
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
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11
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Morrison CN, Prosser KE, Stokes RW, Cordes A, Metzler-Nolte N, Cohen SM. Expanding medicinal chemistry into 3D space: metallofragments as 3D scaffolds for fragment-based drug discovery. Chem Sci 2019; 11:1216-1225. [PMID: 34123246 PMCID: PMC8148059 DOI: 10.1039/c9sc05586j] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 12/12/2019] [Indexed: 01/02/2023] Open
Abstract
Fragment-based drug discovery (FBDD) is a powerful strategy for the identification of new bioactive molecules. FBDD relies on fragment libraries, generally of modest size, but of high chemical diversity. Although good chemical diversity in FBDD libraries has been achieved in many respects, achieving shape diversity - particularly fragments with three-dimensional (3D) structures - has remained challenging. A recent analysis revealed that >75% of all conventional, organic fragments are predominantly 1D or 2D in shape. However, 3D fragments are desired because molecular shape is one of the most important factors in molecular recognition by a biomolecule. To address this challenge, the use of inert metal complexes, so-called 'metallofragments' (mFs), to construct a 3D fragment library is introduced. A modest library of 71 compounds has been prepared with rich shape diversity as gauged by normalized principle moment of inertia (PMI) analysis. PMI analysis shows that these metallofragments occupy an area of fragment space that is unique and highly underrepresented when compared to conventional organic fragment libraries that are comprised of orders of magnitude more molecules. The potential value of this metallofragment library is demonstrated by screening against several different types of proteins, including an antiviral, an antibacterial, and an anticancer target. The suitability of the metallofragments for future hit-to-lead development was validated through the determination of IC50 and thermal shift values for select fragments against several proteins. These findings demonstrate the utility of metallofragment libraries as a means of accessing underutilized 3D fragment space for FBDD against a variety of protein targets.
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Affiliation(s)
- Christine N Morrison
- Department of Chemistry and Biochemistry, University of California San Diego La Jolla CA 92093 USA
| | - Kathleen E Prosser
- Department of Chemistry and Biochemistry, University of California San Diego La Jolla CA 92093 USA
| | - Ryjul W Stokes
- Department of Chemistry and Biochemistry, University of California San Diego La Jolla CA 92093 USA
| | - Anna Cordes
- Lehrstuhl für Anorganische Chemie 1, Bioanorganische Chemie, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Nils Metzler-Nolte
- Lehrstuhl für Anorganische Chemie 1, Bioanorganische Chemie, Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Seth M Cohen
- Department of Chemistry and Biochemistry, University of California San Diego La Jolla CA 92093 USA
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12
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Nadeem Q, Meola G, Braband H, Bolliger R, Blacque O, Hernández‐Valdés D, Alberto R. To Sandwich Technetium: Highly Functionalized Bis‐Arene Complexes [
99m
Tc(η
6
‐arene)
2
]
+
Directly from Water and [
99m
TcO
4
]
−. Angew Chem Int Ed Engl 2019; 59:1197-1200. [DOI: 10.1002/anie.201912994] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Qaisar Nadeem
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Giuseppe Meola
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Henrik Braband
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Robin Bolliger
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | - Olivier Blacque
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
| | | | - Roger Alberto
- Department of Chemistry University of Zurich Winterthurerstr. 190 8057 Zurich Switzerland
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13
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Okoye NC, Baumeister JE, Najafi Khosroshahi F, Hennkens HM, Jurisson SS. Chelators and metal complex stability for radiopharmaceutical applications. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2018-3090] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Diagnostic and therapeutic nuclear medicine relies heavily on radiometal nuclides. The most widely used and well-known radionuclide is technetium-99m (99mTc), which has dominated diagnostic nuclear medicine since the advent of the 99Mo/99mTc generator in the 1960s. Since that time, many more radiometals have been developed and incorporated into potential radiopharmaceuticals. One critical aspect of radiometal-containing radiopharmaceuticals is their stability under in vivo conditions. The chelator that is coordinated to the radiometal is a key factor in determining radiometal complex stability. The chelators that have shown the most promise and are under investigation in the development of diagnostic and therapeutic radiopharmaceuticals over the last 5 years are discussed in this review.
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Affiliation(s)
| | | | | | - Heather M. Hennkens
- Department of Chemistry , University of Missouri , Columbia, MO 65211 , USA
- University of Missouri Research Reactor Center , Columbia, MO 65211 , USA
| | - Silvia S. Jurisson
- Department of Chemistry , University of Missouri , Columbia, MO 65211 , USA
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14
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Lehnherr D, Wang X, Peng F, Reibarkh M, Weisel M, Maloney KM. Mechanistic Study of a Re-Catalyzed Monoalkylation of Phenols. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00543] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Dan Lehnherr
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Xiao Wang
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Feng Peng
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Mikhail Reibarkh
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Mark Weisel
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Kevin M. Maloney
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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15
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Hernández-Valdés D, Meola G, Braband H, Spingler B, Alberto R. Direct Synthesis of Non-Alkyl Functionalized Bis-Arene Complexes of Rhenium and 99(m)Technetium. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00494] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel Hernández-Valdés
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Giuseppe Meola
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Henrik Braband
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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16
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17
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Meier SC, Holz A, Kulenkampff J, Schmidt A, Kratzert D, Himmel D, Schmitz D, Scheidt EW, Scherer W, Bülow C, Timm M, Lindblad R, Akin ST, Zamudio-Bayer V, von Issendorff B, Duncan MA, Lau JT, Krossing I. Access to the Bis-benzene Cobalt(I) Sandwich Cation and its Derivatives: Synthons for a "Naked" Cobalt(I) Source? Angew Chem Int Ed Engl 2018; 57:9310-9314. [PMID: 29847000 DOI: 10.1002/anie.201803108] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/25/2018] [Indexed: 11/09/2022]
Abstract
The synthesis and structural characterization of the hitherto unknown parent Co(bz)2+ (bz=benzene) complex and several of its derivatives are described. Their synthesis starts either from a CoCO5+ salt, or directly from Co2 (CO)8 and a Ag+ salt. Stability and solubility of these complexes was achieved by using the weakly coordinating anions (WCAs) [Al(ORF )4 ]- and [F{Al(ORF )3 }2 ]- {RF =C(CF3 )3 } and the solvent ortho-difluorobenzene (o-DFB). The magnetic properties of Co(bz)2+ were measured and compared in the condensed and gas phases. The weakly bound Co(o-dfb)2+ salts are of particular interest for the preparation of further CoI salts, for example, the structurally characterized low-coordinate 12 valence electron Co(Pt Bu3 )2+ and Co(NHC)2+ salts.
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Affiliation(s)
- Stefan C Meier
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany
| | - Albina Holz
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany
| | - Jan Kulenkampff
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany
| | - Alexei Schmidt
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany
| | - Daniel Kratzert
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany
| | - Daniel Himmel
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany
| | - Dominik Schmitz
- Institut für Physik, Universität Augsburg, Universitätsstrasse 1, 86159, Augsburg, Germany
| | - Ernst-Wilhelm Scheidt
- Institut für Physik, Universität Augsburg, Universitätsstrasse 1, 86159, Augsburg, Germany
| | - Wolfgang Scherer
- Institut für Physik, Universität Augsburg, Universitätsstrasse 1, 86159, Augsburg, Germany
| | - Christine Bülow
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489, Berlin, Germany.,Technische Universität Berlin, Institut für Optik und Atomare Physik, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Martin Timm
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489, Berlin, Germany.,Technische Universität Berlin, Institut für Optik und Atomare Physik, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Rebecka Lindblad
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489, Berlin, Germany.,Lunds Universitet, Synkrotronljusfysik, Box 118, 221000, Lund, Sweden
| | - Scott T Akin
- Department of Chemistry, University of Georgia, Athens, Georgia, 30602, USA
| | - Vicente Zamudio-Bayer
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489, Berlin, Germany.,Physikalisches Institut, Universität Freiburg, Hermann-Herder-Strasse 3, 79104, Freiburg, Germany
| | - Bernd von Issendorff
- Physikalisches Institut, Universität Freiburg, Hermann-Herder-Strasse 3, 79104, Freiburg, Germany
| | - Michael A Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia, 30602, USA
| | - J Tobias Lau
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489, Berlin, Germany.,Physikalisches Institut, Universität Freiburg, Hermann-Herder-Strasse 3, 79104, Freiburg, Germany
| | - Ingo Krossing
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany
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18
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Meier SC, Holz A, Kulenkampff J, Schmidt A, Kratzert D, Himmel D, Schmitz D, Scheidt EW, Scherer W, Bülow C, Timm M, Lindblad R, Akin ST, Zamudio-Bayer V, von Issendorff B, Duncan MA, Lau JT, Krossing I. Access to the Bis-benzene Cobalt(I) Sandwich Cation and its Derivatives: Synthons for a “Naked” Cobalt(I) Source? Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803108] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Stefan C. Meier
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Universität Freiburg; Albertstrasse 21 79104 Freiburg Germany
| | - Albina Holz
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Universität Freiburg; Albertstrasse 21 79104 Freiburg Germany
| | - Jan Kulenkampff
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Universität Freiburg; Albertstrasse 21 79104 Freiburg Germany
| | - Alexei Schmidt
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Universität Freiburg; Albertstrasse 21 79104 Freiburg Germany
| | - Daniel Kratzert
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Universität Freiburg; Albertstrasse 21 79104 Freiburg Germany
| | - Daniel Himmel
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Universität Freiburg; Albertstrasse 21 79104 Freiburg Germany
| | - Dominik Schmitz
- Institut für Physik; Universität Augsburg; Universitätsstrasse 1 86159 Augsburg Germany
| | - Ernst-Wilhelm Scheidt
- Institut für Physik; Universität Augsburg; Universitätsstrasse 1 86159 Augsburg Germany
| | - Wolfgang Scherer
- Institut für Physik; Universität Augsburg; Universitätsstrasse 1 86159 Augsburg Germany
| | - Christine Bülow
- Helmholtz-Zentrum Berlin für Materialien und Energie; Albert-Einstein-Strasse 15 12489 Berlin Germany
- Technische Universität Berlin; Institut für Optik und Atomare Physik; Hardenbergstrasse 36 10623 Berlin Germany
| | - Martin Timm
- Helmholtz-Zentrum Berlin für Materialien und Energie; Albert-Einstein-Strasse 15 12489 Berlin Germany
- Technische Universität Berlin; Institut für Optik und Atomare Physik; Hardenbergstrasse 36 10623 Berlin Germany
| | - Rebecka Lindblad
- Helmholtz-Zentrum Berlin für Materialien und Energie; Albert-Einstein-Strasse 15 12489 Berlin Germany
- Lunds Universitet; Synkrotronljusfysik, Box 118 221000 Lund Sweden
| | - Scott T. Akin
- Department of Chemistry; University of Georgia; Athens Georgia 30602 USA
| | - Vicente Zamudio-Bayer
- Helmholtz-Zentrum Berlin für Materialien und Energie; Albert-Einstein-Strasse 15 12489 Berlin Germany
- Physikalisches Institut; Universität Freiburg; Hermann-Herder-Strasse 3 79104 Freiburg Germany
| | - Bernd von Issendorff
- Physikalisches Institut; Universität Freiburg; Hermann-Herder-Strasse 3 79104 Freiburg Germany
| | - Michael A. Duncan
- Department of Chemistry; University of Georgia; Athens Georgia 30602 USA
| | - J. Tobias Lau
- Helmholtz-Zentrum Berlin für Materialien und Energie; Albert-Einstein-Strasse 15 12489 Berlin Germany
- Physikalisches Institut; Universität Freiburg; Hermann-Herder-Strasse 3 79104 Freiburg Germany
| | - Ingo Krossing
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Universität Freiburg; Albertstrasse 21 79104 Freiburg Germany
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19
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Shinde DN, Trivedi R, Vamsi Krishna N, Lingamallu G, Sridhar B, Khursade PS, Reddy Shetty P. 2,4-Thiazolidinedione as a Bioactive Linker for Ferrocenyl Sugar-Triazole Conjugates: Synthesis, Characterization and Biological Properties. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Dilip N. Shinde
- Inorganic and Physical Chemistry Division; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad Telangana India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IICT Campus; 500007 Hyderabad Telangana India
| | - Rajiv Trivedi
- Inorganic and Physical Chemistry Division; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad Telangana India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IICT Campus; 500007 Hyderabad Telangana India
| | - Narra Vamsi Krishna
- Inorganic and Physical Chemistry Division; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad Telangana India
| | - Giribabu Lingamallu
- Inorganic and Physical Chemistry Division; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad Telangana India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IICT Campus; 500007 Hyderabad Telangana India
| | - Balasubramanian Sridhar
- Center for X-ray Crystallography; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad Telangana India
| | - Parag S. Khursade
- Medicinal Chemistry and Biotechnology Division; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad Telangana India
| | - Prakasham Reddy Shetty
- Medicinal Chemistry and Biotechnology Division; CSIR-Indian Institute of Chemical Technology; 500007 Hyderabad Telangana India
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20
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Meola G, Braband H, Hernández-Valdés D, Gotzmann C, Fox T, Spingler B, Alberto R. A Mixed-Ring Sandwich Complex from Unexpected Ring Contraction in [Re(η6-C6H5Br)(η6-C6R6)](PF6). Inorg Chem 2017; 56:6297-6301. [DOI: 10.1021/acs.inorgchem.7b00394] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Giuseppe Meola
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland
| | - Henrik Braband
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland
| | - Daniel Hernández-Valdés
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland
| | - Carla Gotzmann
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland
| | - Thomas Fox
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland
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21
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Meola G, Braband H, Jordi S, Fox T, Blacque O, Spingler B, Alberto R. Structure and reactivities of rhenium and technetium bis-arene sandwich complexes [M(η6-arene)2]+. Dalton Trans 2017; 46:14631-14637. [DOI: 10.1039/c7dt02072d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rhenium and 99Tc bis-arene complexes for a molecule-based theranostic approach are presented. Conjugation of biovectors to benzene or substitution of naphthalene allows integration of {Re(η6-C6H6)}+ in pharmaceutical lead structures.
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Affiliation(s)
- Giuseppe Meola
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
| | - Henrik Braband
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
| | - Sara Jordi
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
| | - Thomas Fox
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
| | - Olivier Blacque
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
| | - Bernhard Spingler
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
| | - Roger Alberto
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
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