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Ferrando R, Mitchell SG, Atrián-Blasco E, Cerrada E. Antibacterial properties of phosphine gold(I) complexes with 5-fluorouracil. Dalton Trans 2023. [PMID: 37448318 DOI: 10.1039/d3dt01159c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
New gold(I) complexes with coordination to 5-fluorouracil (5-FU), an anticancer drug with antibacterial properties, have been synthesised and characterised, and are the first reported examples of 5-FU-Au compounds. These new complexes show high solution stability, even in the presence of a cysteine derivative, and so were evaluated as antibacterial compounds against model Gram-positive and Gram-negative bacteria. All the complexes show excellent antibacterial activity against Gram-positive B. subtilis, most of them improving the activity of 5-FU alone. Furthermore, these new complexes are also active against Gram-negative E. coli, where [Au(5-FU)(PTA)], the complex with the smallest phosphane, is the most bactericidal, 32 times more active than 5-FU on its own.
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Affiliation(s)
- Ricardo Ferrando
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain.
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elena Atrián-Blasco
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Elena Cerrada
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain.
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2
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Organomanganese / amido-phosphine (DAPTA) catalyst for rapid cyanosilylation of aldehydes in glycerol and solvent-free conditions at room temperature. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.114056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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3
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Affiliation(s)
| | - Brian R. James
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
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4
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Mahmoud AG, Guedes da Silva MFC, Pombeiro AJL. A new amido-phosphane as ligand for copper and silver complexes. Synthesis, characterization and catalytic application for azide-alkyne cycloaddition in glycerol. Dalton Trans 2021; 50:6109-6125. [PMID: 33973609 DOI: 10.1039/d1dt00992c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The new sterically hindered amido-phosphane 1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-3,7-diylbis(phenylmethanone), DBPTA (1), has been obtained via an open-cage double N-acylation of 1,3,5-triaza-7-phosphadamantane (PTA) using benzoic anhydride. DBPTA is the only acyl derivative of PTA that contains an aromatic appendage. Due to the bulky nature of the benzoyl C(O)Ph groups, they exhibit mutual anti configuration as confirmed by solution NMR and single crystal X-ray diffraction. Compound 1 is readily soluble in common polar organic and green solvents, making it a very versatile ligand that could be used in a variety of reaction systems. To assess the coordination characteristics of the new phosphane, seven copper complexes of formulas [Cu(DBPTA)4]BF4 (2), [CuX(DBPTA)3] {X = Br (3) and I (4)}, [Cu(μ-X)(DBPTA)2]2 {X = Br (5) and I (6)}, [Cu(bpy)(DBPTA)2]Y {Y = BF4 (7) and BPh4 (8)} {bpy = 2,2'-bipyridine}, and three silver complexes with formulas [Ag(DBPTA)4]NO3 (9), [Ag(Tpm*)(DBPTA)]NO3 (10) and [Ag(Tpms)(DBPTA)] (11) {Tpm* = tris(3,5-dimethyl-1-pyrazolyl)methane, Tpms = tris(pyrazol-1-yl)methanesulfonate} have been synthesised. Compounds 1-11 were characterized by elemental analyses and electrospray ionization mass spectrometry (ESI-MS), as well as by FT-IR and NMR (1H, 13C, 31P, COSY and HSQC) spectroscopic techniques. The catalytic activity of the complexes has been investigated for 1,3-dipolar azide-alkyne cycloaddition reaction using glycerol as a reaction medium to afford 1,4-disubstituted-1,2,3-triazoles. Complex 7 was found to be the most efficient catalyst, affording triazoles in yields up to 97% after 18 h under standard bench experimental conditions (at 23 °C, aerobic conditions and in the absence of any additional bases) and up to 98% after 15 minutes under microwave irradiation (125 °C, 30 W). The catalysis proceeds with a broad substrate scope according to "Click" rules providing a significant contribution to "Green Chemistry".
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Affiliation(s)
- Abdallah G Mahmoud
- Department of Chemistry, Faculty of Science, Helwan University, Ain Helwan, 11795 Cairo, Egypt and Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal. and Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
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Mahmoud AG, Guedes da Silva MFC, Pombeiro AJ. 3,7-Diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) and derivatives: Coordination chemistry and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213614] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Dammak K, Porchia M, De Franco M, Zancato M, Naïli H, Gandin V, Marzano C. Antiproliferative Homoleptic and Heteroleptic Phosphino Silver(I) Complexes: Effect of Ligand Combination on Their Biological Mechanism of Action. Molecules 2020; 25:molecules25225484. [PMID: 33238608 PMCID: PMC7700221 DOI: 10.3390/molecules25225484] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022] Open
Abstract
A series of neutral mixed-ligand [HB(pz)3]Ag(PR3) silver(I) complexes (PR3 = tertiary phosphine, [HB(pz)3]− = tris(pyrazolyl)borate anion), and the corresponding homoleptic [Ag(PR3)4]BF4 compounds have been synthesized and fully characterized. Silver compounds were screened for their antiproliferative activities against a wide panel of human cancer cells derived from solid tumors and endowed with different platinum drug sensitivity. Mixed-ligand complexes were generally more effective than the corresponding homoleptic derivatives, but the most active compounds were [HB(pz)3]Ag(PPh3) (5) and [Ag(PPh3)4]BF4 (10), both comprising the lipophilic PPh3 phosphine ligand. Detailed mechanistic studies revealed that both homoleptic and heteroleptic silver complexes strongly and selectively inhibit the selenoenzyme thioredoxin reductase both as isolated enzyme and in human ovarian cancer cells (half inhibition concentration values in the nanomolar range) causing the disruption of cellular thiol-redox homeostasis, and leading to apoptotic cell death. Moreover, for heteroleptic Ag(I) derivatives, an additional ability to damage nuclear DNA has been detected. These results confirm the importance of the type of silver ion coordinating ligands in affecting the biological behavior of the overall corresponding silver complexes, besides in terms of hydrophilic–lipophilic balance, also in terms of biological mechanism of action, such as interaction with DNA and/or thioredoxin reductase.
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Affiliation(s)
- Khouloud Dammak
- Laboratoire Physico-Chimie de l’Etat Solide, Département de Chimie, Faculté des Sciences de Sfax, Université de Sfax, B.P. 1171, Sfax 3000, Tunisia; (K.D.); (H.N.)
| | - Marina Porchia
- CNR-ICMATE, Corso Stati Uniti 4, 35127 Padova, Italy
- Correspondence: (M.P.); (V.G.)
| | - Michele De Franco
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy; (M.D.F.); (M.Z.); (C.M.)
| | - Mirella Zancato
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy; (M.D.F.); (M.Z.); (C.M.)
| | - Houcine Naïli
- Laboratoire Physico-Chimie de l’Etat Solide, Département de Chimie, Faculté des Sciences de Sfax, Université de Sfax, B.P. 1171, Sfax 3000, Tunisia; (K.D.); (H.N.)
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy; (M.D.F.); (M.Z.); (C.M.)
- Correspondence: (M.P.); (V.G.)
| | - Cristina Marzano
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy; (M.D.F.); (M.Z.); (C.M.)
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Water-Soluble O-, S- and Se-Functionalized Cyclic Acetyl-triaza-phosphines. Synthesis, Characterization and Application in Catalytic Azide-alkyne Cycloaddition. Molecules 2020; 25:molecules25225479. [PMID: 33238623 PMCID: PMC7700463 DOI: 10.3390/molecules25225479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022] Open
Abstract
The 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) derivatives, viz. the already reported 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane 5-oxide (DAPTA=O, 1), the novel 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-sulfide (DAPTA=S, 2), and 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-selenide (DAPTA=Se, 3), have been synthesized under mild conditions. They are soluble in water and most common organic solvents and have been characterized using 1H and 31P NMR spectroscopy and, for 2 and 3, also by single crystal X-ray diffraction. The effect of O, S, or Se at the phosphorus atom on the structural features of the compounds has been investigated, also through the analyses of Hirshfeld surfaces. The presence of 1–3 enhances the activity of copper for the catalytic azide-alkyne cycloaddition reaction in an aqueous medium. The combination of cheaply available copper (II) acetate and compound 1 has been used as a catalyst for the one-pot and 1,4-regioselective procedure to obtain 1,2,3-triazoles with high yields and according to ‘click rules’.
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Ang KP, Chan PF, Hamid RA. Antiproliferative activity exerted by tricyclohexylphosphanegold(I) n-mercaptobenzoate against MCF-7 and A2780 cell lines: the role of p53 signaling pathways. Biometals 2020; 34:141-160. [PMID: 33196940 DOI: 10.1007/s10534-020-00269-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 11/04/2020] [Indexed: 12/28/2022]
Abstract
Based on the recent studies depicting the potential of heterometallic gold complexes as potent antiproliferative agents, herein we first reported the preliminary mechanistic data on the in-vitro antiproliferative activity of tricyclohexylphosphanegold(I) n-mercaptobenzoate, Cy3PAu(n-MBA) where n = 2 (1), 3 (2) and 4 (3), and MBA = mercaptobenzoic acid, treated using MCF-7 breast cancer and A2780 ovarian cancer cells, respectively. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay was used to assess the cytotoxicity of both cancer cells treated with 1-3, respectively. The IC50 of 1-3 were applied to the subsequent assays including cell invasion and thioredoxin reductase (TrxR) as well as ubiquitin activities specifically on Lys48 and Lys63-linked polyubiquitin chains via flowcytometric analysis. The mechanistic effect of 1-3 towards both cells were evaluated on human p53 signaling gene expressions via RT2 profiler Polymerase Chain Reductase (PCR) array. 1-3 were found to be highly cytotoxic towards both MCF-7 and A2780 cancer cell lines with the compounds were more sensitive towards the latter cells. 1-3 also suppressed TrxR and cell invasion activities by modulating p53 related genes related with proliferation, invasion and TrxR activities i.e. CCNB1, TP53, CDK4 etc. 1-3 also regulated Lys48 and Lys63-linked polyubiquitination by reactivation of p53, suggesting the ability of this gene in regulating inhibition of cytoskeletal reorganization via epithelial-mesenchymal transition (EMT), required for tumor progression. Taken together, the overall findings denoted that 1-3 exerted potent antiproliferative activity in MCF-7 and A2780 cells via activation of the p53 signaling pathway.
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Affiliation(s)
- Kok Pian Ang
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Pit Foong Chan
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Roslida Abd Hamid
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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9
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Schutte-Smith M, Marker SC, Wilson JJ, Visser HG. Aquation and Anation Kinetics of Rhenium(I) Dicarbonyl Complexes: Relation to Cell Toxicity and Bioavailability. Inorg Chem 2020; 59:15888-15897. [PMID: 33084304 DOI: 10.1021/acs.inorgchem.0c02389] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The aquation reactions of four rhenium(I) dicarbonyl complexes, [Re(CO)2(NN)(PR3)(Cl)], where NN = 1,10-phenanthroline (Phen) and 2,9-dimethyl-1,10-phenanthroline (DMPhen) and PR3 = 1,3,5-triaza-7-phosphaadamantane (PTA) and 1,4-diacetyl-1,3,7-triaza-5-phosphabicylco[3.3.1]nonane (DAPTA). Additionally, the anation reactions of the corresponding aqua complexes with Cl- were investigated. Single crystals of [Re(CO)2(DMPhen)(PTA)(Cl)]·DMF and [Re(CO)2(DMPhen)(DAPTA)(Cl)] were obtained, and their structures were determined using X-ray diffraction. The Re-Cl interatomic distances are 2.4991(13) and 2.4922(6) Å, respectively, indicating a mild trans influence effect of the phosphine ligands. The rate constants, kaq, for the aquation reactions of these complexes spanned a range of (3.7 ± 0.3) × 10-4 to (15.7 ± 0.3) × 10-4 s-1 with the two Phen complexes having rate constants that are 2.5 times greater than those of the DMPhen complexes at 298 K. Similarly, the second-order anation rate constants (kCl) of the resulting aqua complexes, [Re(CO)2(NN)(PR3)(H2O)]+, with Cl- ions at 298 K varied between (2.99 ± 0.05) × 10-3 and (6.79 ± 0.09) × 10-3 M-1 s-1. Likewise, these rate constants for the Phen complexes were almost 2 times faster than those of the DMPhen complexes. The pKa values of the four aqua complexes were determined to be greater than 9.0 for all of the complexes with [Re(CO)2(Phen)(PTA)(H2O)]+ having the highest pKa value of 9.28 ± 0.03. From the pKa values and the ratios of the aquation and anation rate contants, which give thermodynamic Cl- binding constants, the speciation of the rhenium(I) complexes in blood plasma, the cytoplasm, and the cell nucleus were estimated. The data suggest that the aqua complexes would be the dominant species in all three environments. This result may have important implications on the potential biological activity of these complexes.
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Affiliation(s)
| | - Sierra C Marker
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Hendrik G Visser
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa 9301
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A new amido-phosphine of dichloroacetic acid as an active ligand for metals of pharmaceutical interest. Synthesis, characterization and tests of antiproliferative and pro-apoptotic activity. J Inorg Biochem 2019; 199:110787. [PMID: 31357068 DOI: 10.1016/j.jinorgbio.2019.110787] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 11/24/2022]
Abstract
We herein describe the synthesis and characterization of the new amido-phosphinic ligand 3,7‑bis(dichloroacetyl)‑1,3,7‑triaza‑5‑phosphabicyclo[3.3.1]nonane (DCP), a derivative of dichloroacetic acid (DCA), whose ability to reverse the suppressed mitochondrial apoptosis in cancer cells is known. DCP was obtained by a double N-acylation of PTA (1,3,5‑triaza‑7‑phosphaadamantane) occurring with loss of CH2, in appropriate conditions. Due to the hindered rotation around the amidic CN bonds, three rotameric forms of DCP were observed, whose ratio in solution was dependent on the solvent, while the X-ray crystal structure of DCP showed an opposite orientation of the two amidic carbonyl groups (anti rotamer). The lipophilic, air and thermally stable DCP was found able to act regiospecifically as a P-donor ligand toward soft metal ions. By ligand substitution on appropriate precursors, we obtained the complexes 1-9, where proapoptotic DCA is associated with metal ions of known cytotoxic activity on cancer cells (Pt2+, Pd2+, Ru2+, Re+, Au+). The antiproliferative activity of DCP and its complexes was tested in vitro, in comparison with cisplatin, on three human tumor cell lines: A2780 (ovarian cisplatin-sensitive), A2780cis (ovarian cisplatin-resistant) and K562 (erythroleukemic). The results showed that the simultaneous presence of DCP (containing two residues of proapoptotic DCA) and Pt(II) produces the best performances with respect to non-platinum complexes. Experiments of pro-apoptotic activity indicated that the antiproliferative activity of the most active DCP-Pt(II) complexes is associated with induction of apoptosis.
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11
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Aguiló E, Moro AJ, Outis M, Pina J, Sarmento D, Seixas de Melo JS, Rodríguez L, Lima JC. Deactivation Routes in Gold(I) Polypyridyl Complexes: Internal Conversion Vs Fast Intersystem Crossing. Inorg Chem 2018; 57:13423-13430. [PMID: 30351079 DOI: 10.1021/acs.inorgchem.8b01993] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An electronic spectral and photophysical characterization of three gold(I) complexes containing heterocyclic chromophores differing in the number and arrangement of pyridine rings (pyridine, bipyridine, and terpyridine, with the acronyms pD, bD, and tD respectively) was performed. Quantum yields of fluorescence, internal conversion and triplet state formation, together with the rate constants for singlet to triplet intersystem crossing, S1 ∼ ∼ ∼ S0 internal conversion and fluorescence were measured in order to equate the impact of fast triplet state formation on the amount of triplets formed. The results showed a correlation between the increase on the measured decay values of S1 (leading to the main formation of T1) and the increase in the charge transfer (CT) character of the lowest energy transition, as evaluated from the orthogonality of the frontier orbitals. The measured triplet state quantum yields range from ∼50-60% to 70%, whereas the intersystem crossing rate constants differ by almost 2 orders of magnitude, from 9.4 × 109 s-1 for tD to 8.1 × 1011 s-1 for bD. This constitutes an evidence for the existence of a correlation between the intersystem crossing and the internal conversion mechanisms.
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Affiliation(s)
- Elisabet Aguiló
- Departament de Química Inorgànica i Orgànica. Secció de Química Inorgànica . Universitat de Barcelona , Martí i Franquès 1-11 , Barcelona 08028 , Spain
| | - Artur J Moro
- LAQV-REQUIMTE, Departamento de Química , Universidade Nova de Lisboa , 2825 Monte de Caparica , Portugal
| | - Mani Outis
- LAQV-REQUIMTE, Departamento de Química , Universidade Nova de Lisboa , 2825 Monte de Caparica , Portugal
| | - João Pina
- Coimbra Chemistry Centre, Department of Chemistry , University of Coimbra , Rua Larga, Coimbra 3004-535 , Portugal
| | - Daniela Sarmento
- Coimbra Chemistry Centre, Department of Chemistry , University of Coimbra , Rua Larga, Coimbra 3004-535 , Portugal
| | - J Sérgio Seixas de Melo
- Coimbra Chemistry Centre, Department of Chemistry , University of Coimbra , Rua Larga, Coimbra 3004-535 , Portugal
| | - Laura Rodríguez
- Departament de Química Inorgànica i Orgànica. Secció de Química Inorgànica . Universitat de Barcelona , Martí i Franquès 1-11 , Barcelona 08028 , Spain.,Institut de Nanociència i Nanotecnologia (IN2UB) . Universitat de Barcelona , Barcelona 08028 , Spain
| | - João Carlos Lima
- LAQV-REQUIMTE, Departamento de Química , Universidade Nova de Lisboa , 2825 Monte de Caparica , Portugal
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Mahmoud AG, Guedes da Silva MFC, Śliwa EI, Smoleński P, Kuznetsov ML, Pombeiro AJL. Copper(II) and Sodium(I) Complexes based on 3,7-Diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-oxide: Synthesis, Characterization, and Catalytic Activity. Chem Asian J 2018; 13:2868-2880. [DOI: 10.1002/asia.201800799] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/20/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Abdallah G. Mahmoud
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
- Department of Chemistry; Faculty of Science; Helwan University; Ain Helwan 11795 Cairo Egypt
| | - M. Fátima C. Guedes da Silva
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Ewelina I. Śliwa
- Faculty of Chemistry; University of Wrocław; Ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Piotr Smoleński
- Faculty of Chemistry; University of Wrocław; Ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
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13
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Mahmoud AG, Guedes da Silva MFC, Sokolnicki J, Smoleński P, Pombeiro AJL. Hydrosoluble Cu(i)-DAPTA complexes: synthesis, characterization, luminescence thermochromism and catalytic activity for microwave-assisted three-component azide-alkyne cycloaddition click reaction. Dalton Trans 2018; 47:7290-7299. [PMID: 29767654 DOI: 10.1039/c8dt01232f] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New hydrosoluble and air-stable Cu(i) halide compounds, viz. [CuX(DAPTA)3] (1) and (2), and [Cu(μ-X)(DAPTA)2]2 (3) and (4) (X = Br or I, in this order), have been prepared by reacting Cu(i) halide (i.e., bromide or iodide) with 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) under mild conditions. They represent the first examples of Cu(i) halide complexes bearing the DAPTA ligand, which have been fully characterized by elemental analysis, IR, 1H, 13C{1H} and 31P{1H} NMR spectroscopies, ESI-MS+ and, for 4, also by single-crystal X-ray diffraction (SCXRD) analyses. Complexes 1-4 are efficient catalysts for the one-pot microwave assisted three-component (terminal alkyne, organic halide and NaN3) Huisgen cycloaddition reaction in aqueous media to afford the corresponding disubstituted triazoles. The catalysis proceeds with a broad alkyne substrate scope and according to "click rules". Photophysical studies of compound 4 showed an unusual reversible thermochromic behaviour exhibiting a blue emission at 298 K due to the halide-to-ligand charge transfer (3XLCT) and a red emission at 77 K because of the {Cu2I2} unit.
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Affiliation(s)
- Abdallah G Mahmoud
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
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Bangde PS, Prajapati DS, Dandekar PP, Kapdi AR. New Water‐Soluble N‐Heterocyclic Carbene‐Palladium Complexes as Promising Anti‐Tumor Agents: Investigating DNA and Protein Interactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201800535] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Prachi S. Bangde
- Department of Pharmaceutical TechnologyInstitute of Chemical Technology Nathalal Parekh Road, Matunga Mumbai-400019 India
| | - Dharmendra S. Prajapati
- Department of ChemistryInstitute of Chemical Technology Nathalal Parekh Road, Matunga Mumbai-400019 India
| | - Prajakta P. Dandekar
- Department of Pharmaceutical TechnologyInstitute of Chemical Technology Nathalal Parekh Road, Matunga Mumbai-400019 India
| | - Anant R. Kapdi
- Department of ChemistryInstitute of Chemical Technology Nathalal Parekh Road, Matunga Mumbai-400019 India
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15
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Marker SC, MacMillan SN, Zipfel WR, Li Z, Ford PC, Wilson JJ. Photoactivated in Vitro Anticancer Activity of Rhenium(I) Tricarbonyl Complexes Bearing Water-Soluble Phosphines. Inorg Chem 2018; 57:1311-1331. [PMID: 29323880 PMCID: PMC8117114 DOI: 10.1021/acs.inorgchem.7b02747] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Fifteen water-soluble rhenium compounds of the general formula [Re(CO)3(NN)(PR3)]+, where NN is a diimine ligand and PR3 is 1,3,5-triaza-7-phosphaadamantane (PTA), tris(hydroxymethyl)phosphine (THP), or 1,4-diacetyl-1,3,7-triaza-5-phosphabicylco[3.3.1]nonane (DAPTA), were synthesized and characterized by multinuclear NMR spectroscopy, IR spectroscopy, and X-ray crystallography. The complexes bearing the THP and DAPTA ligands exhibit triplet-based luminescence in air-equilibrated aqueous solutions with quantum yields ranging from 3.4 to 11.5%. Furthermore, the THP and DAPTA complexes undergo photosubstitution of a CO ligand upon irradiation with 365 nm light with quantum yields ranging from 1.1 to 5.5% and sensitize the formation of 1O2 with quantum yields as high as 70%. In contrast, all of the complexes bearing the PTA ligand are nonemissive and do not undergo photosubstitution upon irradiation with 365 nm light. These compounds were evaluated as photoactivated anticancer agents in human cervical (HeLa), ovarian (A2780), and cisplatin-resistant ovarian (A2780CP70) cancer cell lines. All of the complexes bearing THP and DAPTA exhibited a cytotoxic response upon irradiation with minimal toxicity in the absence of light. Notably, the complex with DAPTA and 1,10-phenanthroline gave rise to an IC50 value of 6 μM in HeLa cells upon irradiation, rendering it the most phototoxic compound in this library. The nature of the photoinduced cytotoxicity of this compound was explored in further detail. These data indicate that the phototoxic response may result from the release of both CO and the rhenium-containing photoproduct, as well as the production of 1O2.
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Affiliation(s)
- Sierra C. Marker
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Samantha N. MacMillan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Warren R. Zipfel
- Department of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Zhi Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Peter C. Ford
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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New water-soluble palladium(II) iodide complexes derived from N-protonated or N-alkyl-1,3,5-triaza-7-phosphaadamantanes: Synthesis, crystal structure and catalytic properties in aqua media. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.03.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Britvin SN, Rumyantsev AM, Zobnina AE, Padkina MV. Between Adamantane and Atrane: Intrabridgehead Interactions in the Cage-Like Phosphane Related to a Novel Tris(homoadamantane) Ring System. Chemistry 2016; 22:14227-35. [PMID: 27531034 DOI: 10.1002/chem.201601637] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Sergey N. Britvin
- Department of Crystallography; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 St. Petersburg Russia
| | - Andrey M. Rumyantsev
- Department of Genetics and Biotechnology; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 St. Petersburg Russia
| | - Anastasia E. Zobnina
- Department of Genetics and Biotechnology; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 St. Petersburg Russia
| | - Marina V. Padkina
- Department of Genetics and Biotechnology; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 St. Petersburg Russia
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18
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Seixas JD, Santos MFA, Mukhopadhyay A, Coelho AC, Reis PM, Veiros LF, Marques AR, Penacho N, Gonçalves AML, Romão MJ, Bernardes GJL, Santos-Silva T, Romão CC. A contribution to the rational design of Ru(CO)3Cl2L complexes for in vivo delivery of CO. Dalton Trans 2015; 44:5058-75. [PMID: 25427784 DOI: 10.1039/c4dt02966f] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A few ruthenium based metal carbonyl complexes, e.g. CORM-2 and CORM-3, have therapeutic activity attributed to their ability to deliver CO to biological targets. In this work, a series of related complexes with the formula [Ru(CO)3Cl2L] (L = DMSO (3), L-H3CSO(CH2)2CH(NH2)CO2H) (6a); D,L-H3CSO(CH2)2CH(NH2)CO2H (6b); 3-NC5H4(CH2)2SO3Na (7); 4-NC5H4(CH2)2SO3Na (8); PTA (9); DAPTA (10); H3CS(CH2)2CH(OH)CO2H (11); CNCMe2CO2Me (12); CNCMeEtCO2Me (13); CN(c-C3H4)CO2Et) (14)) were designed, synthesized and studied. The effects of L on their stability, CO release profile, cytotoxicity and anti-inflammatory properties are described. The stability in aqueous solution depends on the nature of L as shown using HPLC and LC-MS studies. The isocyanide derivatives are the least stable complexes, and the S-bound methionine oxide derivative is the more stable one. The complexes do not release CO gas to the headspace, but release CO2 instead. X-ray diffraction of crystals of the model protein Hen Egg White Lysozyme soaked with 6b (4UWN) and 8 (4UWN) shows the addition of Ru(II)(CO)(H2O)4 at the His15 binding site. Soakings with 7(4UWN) produced the metallacarboxylate [Ru(COOH)(CO)(H2O)3](+) bound to the His15 site. The aqueous chemistry of these complexes is governed by the water-gas shift reaction initiated with the nucleophilic attack of HO(-) on coordinated CO. DFT calculations show this addition to be essentially barrierless. The complexes have low cytotoxicity and low hemolytic indices. Following i.v. administration of CORM-3, the in vivo bio-distribution of CO differs from that obtained with CO inhalation or with heme oxygenase stimulation. A mechanism for CO transport and delivery from these complexes is proposed.
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Affiliation(s)
- João D Seixas
- Instituto de Tecnologia Química e Biológica-António Xavier da Universidade Nova de Lisboa, Av. da República, EAN, 2780-157 Oeiras, Portugal.
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19
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Gandin V, Trenti A, Porchia M, Tisato F, Giorgetti M, Zanusso I, Trevisi L, Marzano C. Homoleptic phosphino copper(I) complexes with in vitro and in vivo dual cytotoxic and anti-angiogenic activity. Metallomics 2015; 7:1497-507. [PMID: 26190698 DOI: 10.1039/c5mt00163c] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Homoleptic, tetrahedral Cu(i) complexes of the type [Cu(P)4]BF4 (1-3), where P are the phosphine ligands, 1,3,5-triaza-7-phosphaadamantane (PTA), 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) and 2-thia-1,3,5-triaza-phosphoaadamantane-2,2-dioxide (PTA-SO2), have been prepared. Novel complexes [Cu(DAPTA)4]BF42 and [Cu(PTA-SO2)4]BF43 have been fully characterized by means of spectroscopic methods, corroborated by XAS-EXAFS analysis of 2. In vitro cell culture experiments revealed a significant antiproliferative activity for Cu(i) compounds against several human cancer cell lines derived from solid tumors with preferential cell growth inhibition towards tumour compared to non-malignant cells. In vitro monitoring of migration and capillary-like tube formation of human umbilical vein endothelial cells (HUVECs) showed an anti-angiogenic effect of copper(i) complexes at sub-cytotoxic concentrations. In vivo studies on the antitumor efficacy and ability to inhibit angiogenesis confirmed the dual cytotoxic and anti-angiogenic properties of Cu(i) derivatives.
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Affiliation(s)
- V Gandin
- Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy.
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20
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Water soluble diphosphine ligands based on 1,3,5-triaza-7-phosphaadamantane (PTA-PR2): Synthesis, coordination chemistry, and ruthenium catalyzed nitrile hydration. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.03.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Britvin SN, Lotnyk A. Water-Soluble Phosphine Capable of Dissolving Elemental Gold: The Missing Link between 1,3,5-Triaza-7-phosphaadamantane (PTA) and Verkade's Ephemeral Ligand. J Am Chem Soc 2015; 137:5526-35. [PMID: 25897572 DOI: 10.1021/jacs.5b01851] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We herein describe a tricyclic phosphine with previously unreported tris(homoadamantane) cage architecture. That water-soluble, air- and thermally stable ligand, 1,4,7-triaza-9-phosphatricyclo[5.3.2.1(4,9)]tridecane (hereinafter referred to as CAP) exhibits unusual chemical behavior toward gold and gold compounds: it readily reduces Au(III) to Au(0), promotes oxidative dissolution of nanocrystalline gold(0) with the formation of water-soluble trigonal CAP-Au(I) complexes, and displaces cyanide from [Au(CN)2](-) affording triangular [Au(CAP)3](+) cation. From the stereochemical point of view, CAP can be regarded as an intermediate between 1,3,5-triaza-7-phosphaadamantane (PTA) and very unstable aminophosphine synthesized by Verkade's group: hexahydro-2a,4a,6a-triaza-6b-phosphacyclopenta[cd]pentalene. The chemical properties of CAP are likely related to its anomalous stereoelectronic profile: combination of strong electron-donating power (Tolman's electronic parameter 2056.8 cm(-1)) with the low steric demand (cone angle of 109°). CAP can be considered as macrocyclic counterpart of PTA with the electron-donating power approaching that of strongest known phosphine electron donors such as P(t-Bu)3 and PCy3. Therefore, CAP as sterically undemanding and electron-rich ligand populates the empty field on the stereoelectronic map of phosphine ligands: the niche between the classic tertiary phosphines and the sterically undemanding aminophosphines.
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Affiliation(s)
- Sergey N Britvin
- †Department of Crystallography, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russia.,‡Nanomaterials Research Center, Kola Science Center, Russian Academy of Sciences, 184200 Apatity, Murmansk Region, Russia
| | - Andriy Lotnyk
- §Leibniz Institute of Surface Modification, Permoserstrassse 15, D-04318 Leipzig, Germany
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23
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Braddock-Wilking J, Acharya S, Rath NP. Synthesis and characterization of Pt(II) and Pd(II) PTA and DAPTA complexes. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.04.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Efficient and selective hydration of nitriles to amides in aqueous systems with Ru(II)-phosphaurotropine catalysts. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.118] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Tomás-Mendivil E, García-Álvarez R, Vidal C, Crochet P, Cadierno V. Exploring Rhodium(I) Complexes [RhCl(COD)(PR3)] (COD = 1,5-Cyclooctadiene) as Catalysts for Nitrile Hydration Reactions in Water: The Aminophosphines Make the Difference. ACS Catal 2014. [DOI: 10.1021/cs500241p] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Eder Tomás-Mendivil
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Red ORFEO−CINQA - Centro de Innovación en Química Avanzada, Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Rocío García-Álvarez
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Red ORFEO−CINQA - Centro de Innovación en Química Avanzada, Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Cristian Vidal
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Red ORFEO−CINQA - Centro de Innovación en Química Avanzada, Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Pascale Crochet
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Red ORFEO−CINQA - Centro de Innovación en Química Avanzada, Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Red ORFEO−CINQA - Centro de Innovación en Química Avanzada, Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
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26
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Serrano-Ruiz M, Aguilera-Sáez LM, Lorenzo-Luis P, Padrón JM, Romerosa A. Synthesis and antiproliferative activity of the heterobimetallic complexes [RuClCp(PPh₃)-μ-dmoPTA-1κP:2κ²N,N'-MCl₂] (M = Co, Ni, Zn; dmoPTA = 3,7-dimethyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane). Dalton Trans 2014; 42:11212-9. [PMID: 23807438 DOI: 10.1039/c3dt50829c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The synthesis and characterization of three novel heterobimetallic derivatives of general formula [RuClCp(PPh₃)-μ-dmoPTA-1κP:2κ²N,N'-MCl₂] (M = Co (1), Ni (2) and Zn (3), dmoPTA = 3,7-dimethyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane) are described. The sizes of their diffusing units are in agreement with the solid-state structures of 2 and 3, supporting a similar solid-state structure for complex 1. The diamagnetic ruthenium-zinc derivative 3 was fully characterized in solution at 193 K by NMR. Electrochemical properties of the complexes were investigated by cyclic voltammetry, supporting the influence of the {MCl₂} moiety on the electronic properties of the Ru-unit. For the three complexes the GI₅₀ values were in the range 0.8-6.5 μM and comparable to those of the standard anticancer drug cis-platin in the same cell lines.
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Affiliation(s)
- Manuel Serrano-Ruiz
- Área de Química Inorgánica, Facultad de Ciencias Experimentales, Universidad de Almería, 04071 Almería, Spain
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27
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García-Moreno E, Gascón S, Rodriguez-Yoldi MJ, Cerrada E, Laguna M. S-Propargylthiopyridine Phosphane Derivatives As Anticancer Agents: Characterization and Antitumor Activity. Organometallics 2013. [DOI: 10.1021/om400340a] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Elena García-Moreno
- Departamento de Química Inorgánica,
Instituto de Síntesis Química y Catálisis Homogénea, Universidad de Zaragoza-CSIC, E-50009 Zaragoza, Spain
| | - Sonia Gascón
- Departamento de Farmacología
y Fisiología, Unidad de Fisiología, Facultad de Veterinaria, Universidad de Zaragoza, 50013, Zaragoza, CIBERobn,
Spain
| | - M Jesus Rodriguez-Yoldi
- Departamento de Farmacología
y Fisiología, Unidad de Fisiología, Facultad de Veterinaria, Universidad de Zaragoza, 50013, Zaragoza, CIBERobn,
Spain
| | - Elena Cerrada
- Departamento de Química Inorgánica,
Instituto de Síntesis Química y Catálisis Homogénea, Universidad de Zaragoza-CSIC, E-50009 Zaragoza, Spain
| | - Mariano Laguna
- Departamento de Química Inorgánica,
Instituto de Síntesis Química y Catálisis Homogénea, Universidad de Zaragoza-CSIC, E-50009 Zaragoza, Spain
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28
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Guerrero E, Miranda S, Lüttenberg S, Fröhlich N, Koenen JM, Mohr F, Cerrada E, Laguna M, Mendía A. trans-Thionate Derivatives of Pt(II) and Pd(II) with Water-Soluble Phosphane PTA and DAPTA Ligands: Antiproliferative Activity against Human Ovarian Cancer Cell Lines. Inorg Chem 2013; 52:6635-47. [DOI: 10.1021/ic4006746] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elena Guerrero
- Departamento de Química,
Área de Química Inorgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
| | - Susana Miranda
- Departamento de Química,
Área de Química Inorgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
| | - Sebastian Lüttenberg
- Departamento de Química,
Área de Química Inorgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
- Fachbereich C Anorganiche Chemie, Bergische Univesität Wuppertal, 42119 Wuppertal,
Germany
| | - Nils Fröhlich
- Departamento de Química,
Área de Química Inorgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
- Fachbereich C Anorganiche Chemie, Bergische Univesität Wuppertal, 42119 Wuppertal,
Germany
| | - Jan-Moritz Koenen
- Departamento de Química,
Área de Química Inorgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
- Fachbereich C Anorganiche Chemie, Bergische Univesität Wuppertal, 42119 Wuppertal,
Germany
| | - Fabian Mohr
- Departamento de Química,
Área de Química Inorgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
- Fachbereich C Anorganiche Chemie, Bergische Univesität Wuppertal, 42119 Wuppertal,
Germany
| | - Elena Cerrada
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Mariano Laguna
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Aránzazu Mendía
- Departamento de Química,
Área de Química Inorgánica, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
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29
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Cai Y, Shi Y. Synthesis and X-ray characterization of novel palladium(ii) complexes with tunable chiral anionic counterions. Dalton Trans 2013; 42:5232-6. [DOI: 10.1039/c3dt00007a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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García-Álvarez J, Díez J, Gimeno J, Suárez FJ, Vincent C. (Iminophosphorane)copper(I) Complexes as Highly Efficient Catalysts for 1,3-Dipolar Cycloaddition of Azides with Terminal and 1-Iodoalkynes in Water: One-Pot Multi-Component Reaction from Alkynes and in situ Generated Azides. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200789] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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32
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Vergara E, Cerrada E, Clavel C, Casini A, Laguna M. Thiolato gold(I) complexes containing water-soluble phosphane ligands: a characterization of their chemical and biological properties. Dalton Trans 2011; 40:10927-35. [PMID: 21904768 DOI: 10.1039/c1dt10892a] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of thiolate gold(I) derivatives bearing water soluble phosphanes--namely sodium triphenylphosphane monosulfonate (TPPMS), sodium triphenylphosphane trisulfonate (TPPTS), 1,3,5-triaza-7-phosphaadamantane (PTA) and 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA)--is reported and the compounds studied for their luminescence properties in the solid state. Two of these derivatives, [Au(SMe(2)pyrim)(PTA)] and [Au(SBenzoxazole)(DAPTA)], are also structurally characterized by X-ray diffraction analysis. Strong antiproliferative effects are observed for most of the compounds in the human ovarian carcinoma cell lines (A2780/S) and its cisplatin-resistant variant (A2780/R), which depend on both the type of thiolate and phosphane ligands. ICP-MS studies were also performed to evaluate the influence of the gold uptake on the cytotoxic potency of the compounds.
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Affiliation(s)
- Elena Vergara
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)-C.S.I.C, Universidad de Zaragoza, 50009, Zaragoza, Spain
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33
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Nowak-Sliwinska P, van Beijnum JR, Casini A, Nazarov AA, Wagnières G, van den Bergh H, Dyson PJ, Griffioen AW. Organometallic Ruthenium(II) Arene Compounds with Antiangiogenic Activity. J Med Chem 2011; 54:3895-902. [DOI: 10.1021/jm2002074] [Citation(s) in RCA: 212] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Patrycja Nowak-Sliwinska
- Institute of Bio-Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Judy R. van Beijnum
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Angela Casini
- Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
| | - Alexey A. Nazarov
- Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
| | - Georges Wagnières
- Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
| | - Hubert van den Bergh
- Institute of Bio-Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
| | - Paul J. Dyson
- Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
| | - Arjan W. Griffioen
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
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Komine N, Ishiguro K, Kanai S, Hirano M, Komiya S. Branch selective allylation of acetylacetone catalyzed by Water-soluble rhodium complex catalyst. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.10.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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Mena-Cruz A, Lorenzo-Luis P, Passarelli V, Romerosa A, Serrano-Ruiz M. Comparative study of [RuClCp(HdmoPTA-κP)(PPh3)][CF3SO3] and the heterobimetallic complexes [RuClCp(PPh3)-μ-dmoPTA-1κP:2κ2N,N'-M(acac-κ2O,O')2] (M=Co, Ni, Zn; dmoPTA=3,7-dimethyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane). Dalton Trans 2011; 40:3237-44. [PMID: 21340064 DOI: 10.1039/c0dt00571a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The synthesis of novel heterobimetallic derivatives of general formula [RuClCp(PPh(3))-μ-dmoPTA-1κP:2κ(2)N,N'-M(acac-κ(2)O,O')(2)] (M = Ni (3), Zn (4); dmoPTA = 3,7-dimethyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane) is described. The preparations of the ruthenium-cobalt analogue (M = Co (2)) and the starting compound [RuClCp(HdmoPTA-κP)(PPh(3))](CF(3)SO(3)) have been revised and their yield improved. Similar to 2, the solid state structures of 3 and 4 show that the dmoPTA-P and the dmoPTA-N(CH(3)) atoms are involved in the coordination to the {RuCpCl(PPh(3))} and {M(acac)(2)} moieties, respectively. The size of the diffusing units is almost the same for the three binuclear complexes, indicating that they exhibit similar solution structures. The diamagnetic ruthenium-zinc derivative was fully characterized in solution at 193 K by NMR as two diastereomeric pairs of enantiomers (R-Ru, Δ-Zn; R-Ru, Λ-Zn; S-Ru, Δ-Zn; S-Ru, Λ-Zn). Finally, the electrochemical properties of the complexes have been investigated by cyclic voltammetry.
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Affiliation(s)
- Adrián Mena-Cruz
- Departamento de Química Inorgánica, Facultad de Química, Universidad de La Laguna, La Laguna, Tenerife, Spain
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Gonsalvi L, Peruzzini M. Aqueous Phase Reactions Catalysed by Transition Metal Complexes of 7-Phospha-1,3,5-triazaadamantane (PTA) and Derivatives. PHOSPHORUS COMPOUNDS 2011. [DOI: 10.1007/978-90-481-3817-3_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Cadierno V, Díez J, Francos J, Gimeno J. Bis(allyl)ruthenium(IV) Complexes Containing Water-Soluble Phosphane Ligands: Synthesis, Structure, and Application as Catalysts in the Selective Hydration of Organonitriles into Amides. Chemistry 2010; 16:9808-17. [DOI: 10.1002/chem.201001152] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sternberg M, Suresh CH, Mohr F. 2-Thia-1,3,5-triaza-7-phosphaadamantane-2,2-dioxide Revisited: Computational and Experimental Studies of a Neglected Phosphine. Organometallics 2010. [DOI: 10.1021/om100579e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michelle Sternberg
- Fachbereich C, Anorganische Chemie, Bergische Universität Wuppertal, 42119 Wuppertal, Germany
| | - Cherumuttathu H. Suresh
- Computational Modeling and Simulation Section, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum 695 019, India
| | - Fabian Mohr
- Fachbereich C, Anorganische Chemie, Bergische Universität Wuppertal, 42119 Wuppertal, Germany
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Vergara E, Cerrada E, Casini A, Zava O, Laguna M, Dyson PJ. Antiproliferative Activity of Gold(I) Alkyne Complexes Containing Water-Soluble Phosphane Ligands. Organometallics 2010. [DOI: 10.1021/om100300a] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Elena Vergara
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Elena Cerrada
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Angela Casini
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fedérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Olivier Zava
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fedérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Mariano Laguna
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Paul. J. Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fedérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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40
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Bravo J, Bolaño S, Gonsalvi L, Peruzzini M. Coordination chemistry of 1,3,5-triaza-7-phosphaadamantane (PTA) and derivatives. Part II. The quest for tailored ligands, complexes and related applications. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.08.006] [Citation(s) in RCA: 173] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Vergara E, Casini A, Sorrentino F, Zava O, Cerrada E, Rigobello M, Bindoli A, Laguna M, Dyson P. Anticancer Therapeutics That Target Selenoenzymes: Synthesis, Characterization, inâ
vitro Cytotoxicity, and Thioredoxin Reductase Inhibition of a Series of Gold(I) Complexes Containing Hydrophilic Phosphine Ligands. ChemMedChem 2010; 5:96-102. [DOI: 10.1002/cmdc.200900370] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Kirillov AM, Smoleński P, Ma Z, da Silva MFCG, Haukka M, Pombeiro AJL. Copper(I) Iodide Complexes Derived from N-Alkyl-1,3,5-triaza-7-phosphaadamantanes: Synthesis, Crystal Structures, Photoluminescence, and Identification of the Unprecedented {Cu3I5}2− Cluster. Organometallics 2009. [DOI: 10.1021/om900591q] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Alexander M. Kirillov
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, TU Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Piotr Smoleński
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, TU Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
- Faculty of Chemistry, University of Wrocław, 50-383, ul. F. Joliot-Curie 14, Wroclaw, Poland
| | - Zhen Ma
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, TU Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
| | - M. Fátima C. Guedes da Silva
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, TU Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
- Universidade Lusófona de Humanidades e Tecnologias, ULHT Lisbon, Avenida do Campo Grande, 376, 1749-024, Lisbon, Portugal
| | - Matti Haukka
- Department of Chemistry, University of Joensuu, P.O. Box 111, FI-80101, Joensuu, Finland
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, TU Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
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43
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Krogstad DA, Gohmann KE, Sunderland TL, Geis AL, Bergamini P, Marvelli L, Young VG. Preparation, spectroscopy, X-ray analysis, and water-solubility studies of the first bis-PTA (PTA=1,3,5-triaza-7-phosphaadamantane) derivatives. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.01.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Shaughnessy KH. Hydrophilic ligands and their application in aqueous-phase metal-catalyzed reactions. Chem Rev 2009; 109:643-710. [PMID: 19152291 DOI: 10.1021/cr800403r] [Citation(s) in RCA: 375] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kevin H Shaughnessy
- Department of Chemistry and the Center for Green Manufacturing, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA.
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45
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García-Fernández A, Díez J, Gamasa MP, Lastra E. Facile Modification of 1,3,5-Triaza-7-phosphatricyclo[3.3.1.13,7]decane Phosphanes Coordinated to Ruthenium(II). Inorg Chem 2009; 48:2471-81. [DOI: 10.1021/ic801710y] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Almudena García-Fernández
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica “Enrique Moles” (Unidad Asociada al C.S.I.C.), Universidad de Oviedo, 33006 Oviedo, Principado de Asturias, Spain
| | - Josefina Díez
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica “Enrique Moles” (Unidad Asociada al C.S.I.C.), Universidad de Oviedo, 33006 Oviedo, Principado de Asturias, Spain
| | - M. Pilar Gamasa
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica “Enrique Moles” (Unidad Asociada al C.S.I.C.), Universidad de Oviedo, 33006 Oviedo, Principado de Asturias, Spain
| | - Elena Lastra
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica “Enrique Moles” (Unidad Asociada al C.S.I.C.), Universidad de Oviedo, 33006 Oviedo, Principado de Asturias, Spain
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46
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Ekubo AT, Elsegood MRJ, Lake AJ, Smith MB. Intramolecular Hydrogen-Bonded Tertiary Phosphines as 1,3,5-Triaza-7-phosphaadamantane (PTA) Analogues. Inorg Chem 2009; 48:2633-8. [DOI: 10.1021/ic801709z] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Allen T. Ekubo
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K
| | - Mark R. J. Elsegood
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K
| | - Andrew J. Lake
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K
| | - Martin B. Smith
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K
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47
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Gonzalez B, Lorenzo-Luis P, Romerosa A, Serrano-Ruiz M, Gili P. Theoretical aspects on water soluble [RuClCp(PPh3)2], [RuClCp(PTA)(PPh3)], [RuClCp(PTA)2], [RuClCp(mPTA)(PPh3)]+ and [RuClCp(mPTA)2]2+ (PTA=1,3,5-triaza-7-phosphaadamantane; mPTA=N-methyl-1,3,5-triaza-7-phosphaadamantane). ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2008.09.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Bolaño S, Albinati A, Bravo J, Caporali M, Gonsalvi L, Male L, Mar Rodríguez-Rocha M, Rossin A, Peruzzini M. Synthesis and reactivity of rhodium(III) pentamethylcyclopentadienyl complexes of N–B–PTA(BH3): X-ray crystal structures of [Cp∗RhCl2{N–B}–PTA(BH3)] and [Cp∗Rh{N–B–PTA(BH3)}(η2-CH2=CHPh)]. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Frost BJ, Harkreader JL, Bautista CM. Synthesis and solid state structure of Co(II) complexes of OPTA. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2008.02.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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50
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Miranda S, Vergara E, Mohr F, de Vos D, Cerrada E, Mendía A, Laguna M. Synthesis, Characterization, and in Vitro Cytotoxicity of Some Gold(I) and Trans Platinum(II) Thionate Complexes Containing Water-Soluble PTA and DAPTA Ligands. X-ray Crystal Structures of [Au(SC4H3N2)(PTA)], trans-[Pt(SC4H3N2)2(PTA)2], trans-[Pt(SC5H4N)2(PTA)2], and trans-[Pt(SC5H4N)2(DAPTA)2]. Inorg Chem 2008; 47:5641-8. [DOI: 10.1021/ic7021903] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susana Miranda
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, Bergische Universität Wuppertal, Fachbereich C Anorganische Chemie, 42119 Wuppertal, Germany, and PCH Pharmachemie, Haarlem 2003, The Netherlands
| | - Elena Vergara
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, Bergische Universität Wuppertal, Fachbereich C Anorganische Chemie, 42119 Wuppertal, Germany, and PCH Pharmachemie, Haarlem 2003, The Netherlands
| | - Fabian Mohr
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, Bergische Universität Wuppertal, Fachbereich C Anorganische Chemie, 42119 Wuppertal, Germany, and PCH Pharmachemie, Haarlem 2003, The Netherlands
| | - Dick de Vos
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, Bergische Universität Wuppertal, Fachbereich C Anorganische Chemie, 42119 Wuppertal, Germany, and PCH Pharmachemie, Haarlem 2003, The Netherlands
| | - Elena Cerrada
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, Bergische Universität Wuppertal, Fachbereich C Anorganische Chemie, 42119 Wuppertal, Germany, and PCH Pharmachemie, Haarlem 2003, The Netherlands
| | - Aránzazu Mendía
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, Bergische Universität Wuppertal, Fachbereich C Anorganische Chemie, 42119 Wuppertal, Germany, and PCH Pharmachemie, Haarlem 2003, The Netherlands
| | - Mariano Laguna
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, Bergische Universität Wuppertal, Fachbereich C Anorganische Chemie, 42119 Wuppertal, Germany, and PCH Pharmachemie, Haarlem 2003, The Netherlands
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