1
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Kimura T, Kudo C, Nakajo S. Preparation and Electrochemical and Optical Properties of
α
‐Alkoxyphthalocyanines with
β
‐Pyridylthio Groups. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900766] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Takeshi Kimura
- Center for Instrumental Analysis Iwate University 020–8551 Morioka Iwate 4–3‐5 Ueda Japan
| | - Chiko Kudo
- Center for Instrumental Analysis Iwate University 020–8551 Morioka Iwate 4–3‐5 Ueda Japan
| | - Shiduko Nakajo
- Center for Instrumental Analysis Iwate University 020–8551 Morioka Iwate 4–3‐5 Ueda Japan
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2
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Viola E, Donzello MP, Testani S, Luccisano G, Astolfi ML, Rizzoli C, Cong L, Mannina L, Ercolani C, Kadish KM. Tetra-2,3-pyrazinoporphyrazines with Peripherally Appended Pyridine Rings. 19. Pentanuclear Octa(2-pyridyl)tetrapyrazinoporphyrazines Carrying Externally Carboranthiolate Groups: Physicochemical Properties and Potentialities as Anticancer Drugs. Inorg Chem 2018; 58:1120-1133. [PMID: 30596493 DOI: 10.1021/acs.inorgchem.8b02269] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New pentanuclear porphyrazine complexes of formula [{Pd(CBT)2}4LM]· xH2O (L = tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato anion, CBT = m-carborane-1-thiolate, and M = MgII(H2O), ZnII, PdII) were prepared in good yield as dark green hydrated amorphous solids by reaction of the respective pentanuclear species [(PdCl2)4LM] with m-carboran-1-thiol in CH3CN. Physicochemical characterization of the new species was carried out by elemental and thermogravimetric analysis along with IR and 1H/13C NMR measurements. UV-vis spectral characterization performed in DMSO, DMF, and pyridine solution provided information about the stability of the new homo/heteropentanuclear species and their tendency to undergo detachment of the peripheral Pd(CBT)2 groups. The data from NMR, UV-vis, and electrochemical experiments indicate that external coordination of the Pd(CBT)2 units to the mononuclear [LM] species affects only slightly the π electron distribution within the internal macrocyclic choromophore. The Pd(CBT)2 units are released in pyridine solution and in the case of the ZnII complex [{Pd(CBT)2}4LZn] give rise to a finely crystalline light-yellow solid identified by single-crystal X-ray work as the trans isomer of the bispyridine adduct [py2(CBT)2Pd]. The new pentanuclear macrocyclic complexes behave in DMF solution as active photosensitizers for singlet oxygen production, 1O2, the cytotoxic agent in anticancer photodynamic therapy, and have larger quantum yield values (ΦΔ = 0.6-0.7) than those found on average for the related tetrapyrazinoporphyrazine analogs (ΦΔ = 0.4-0.6). The presence of the CBT groups in the currently investigated complexes opens up the possibility for their use in boron neutron capture therapy, leading potentially to new bimodal anticancer curative drugs.
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Affiliation(s)
- Elisa Viola
- Dipartimento di Chimica , Università di Roma Sapienza , P. le A. Moro 5 , I-00185 Rome , Italy
| | - Maria Pia Donzello
- Dipartimento di Chimica , Università di Roma Sapienza , P. le A. Moro 5 , I-00185 Rome , Italy
| | - Silvia Testani
- Dipartimento di Chimica , Università di Roma Sapienza , P. le A. Moro 5 , I-00185 Rome , Italy
| | - Giulia Luccisano
- Dipartimento di Chimica , Università di Roma Sapienza , P. le A. Moro 5 , I-00185 Rome , Italy
| | - Maria Luisa Astolfi
- Dipartimento di Chimica , Università di Roma Sapienza , P. le A. Moro 5 , I-00185 Rome , Italy
| | - Corrado Rizzoli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , Università di Parma , Parco Area delle Scienze 17/A , I-43124 Parma , Italy
| | - Lei Cong
- Department of Chemistry , University of Houston , Houston , Texas 77204-5003 , United States
| | - Luisa Mannina
- Dipartimento di Chimica e Tecnologie del Farmaco , Università di Roma Sapienza , P. le A. Moro 5 , I-00185 Rome , Italy
| | - Claudio Ercolani
- Dipartimento di Chimica , Università di Roma Sapienza , P. le A. Moro 5 , I-00185 Rome , Italy
| | - Karl M Kadish
- Department of Chemistry , University of Houston , Houston , Texas 77204-5003 , United States
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3
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Novakova V, Donzello MP, Ercolani C, Zimcik P, Stuzhin PA. Tetrapyrazinoporphyrazines and their metal derivatives. Part II: Electronic structure, electrochemical, spectral, photophysical and other application related properties. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.01.015] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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4
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Miletin M, Zimcik P, Novakova V. Photodynamic properties of aza-analogues of phthalocyanines. Photochem Photobiol Sci 2018; 17:1749-1766. [DOI: 10.1039/c8pp00106e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Spectral and photophysical properties and in vitro photodynamic activity of aza-analogues of phthalocyanines are summarized.
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Affiliation(s)
- Miroslav Miletin
- Faculty of Pharmacy in Hradec Kralove
- Charles University
- Hradec Kralove 50005
- Czech Republic
| | - Petr Zimcik
- Faculty of Pharmacy in Hradec Kralove
- Charles University
- Hradec Kralove 50005
- Czech Republic
| | - Veronika Novakova
- Faculty of Pharmacy in Hradec Kralove
- Charles University
- Hradec Kralove 50005
- Czech Republic
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5
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Sciscione F, Manoli F, Viola E, Wankar J, Ercolani C, Donzello MP, Manet I. Photoactivity of New Octacationic Magnesium(II) and Zinc(II) Porphyrazines in a Water Solution and G-Quadruplex Binding Ability of Differently Sized Zinc(II) Porphyrazines. Inorg Chem 2017; 56:12795-12808. [DOI: 10.1021/acs.inorgchem.7b01557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabiola Sciscione
- Dipartimento di Chimica, Università La Sapienza, Piazzale
A. Moro 5, 00185 Roma, Italy
| | - Francesco Manoli
- Istituto per la Sintesi
Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via Gobetti 101, 40129 Bologna, Italy
| | - Elisa Viola
- Dipartimento di Chimica, Università La Sapienza, Piazzale
A. Moro 5, 00185 Roma, Italy
| | - Jitendra Wankar
- Istituto per la Sintesi
Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via Gobetti 101, 40129 Bologna, Italy
| | - Claudio Ercolani
- Dipartimento di Chimica, Università La Sapienza, Piazzale
A. Moro 5, 00185 Roma, Italy
| | - Maria Pia Donzello
- Dipartimento di Chimica, Università La Sapienza, Piazzale
A. Moro 5, 00185 Roma, Italy
| | - Ilse Manet
- Istituto per la Sintesi
Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via Gobetti 101, 40129 Bologna, Italy
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6
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Donzello MP, Gigante F, Sciscione F, Viola E, Kadish KM. Tetra-2,3-pyrazinoporphyrazines with externally appended pyridine rings. 18. Physicochemical properties and photochemical behavior of new uncharged water soluble low-symmetry macrocycles [{Pd(OAc)2}3(PtCl2)LM] (M = MgII(H2O), ZNII, PdII). J PORPHYR PHTHALOCYA 2017. [DOI: 10.1142/s1088424617500250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The synthesis and physicochemical characterization of a new class of low-symmetry water soluble heteropentanuclear porphyrazine complexes are described. The investigated compounds, represented as [{Pd(OAc)[Formula: see text]}[Formula: see text](PtCl[Formula: see text]LM] •xH[Formula: see text]O where L [Formula: see text] tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato dianion, M [Formula: see text] Mg[Formula: see text](H[Formula: see text]O), Zn[Formula: see text] or Pd[Formula: see text] and [Formula: see text] 3–8, were prepared under mild experimental conditions from the previously described heterobimetallic compounds [(PtCl[Formula: see text]LM]. Peripheral binding of one PtCl[Formula: see text]and three Pd(OAc)[Formula: see text]units in the new series of compounds occurs at the vicinal pyridine N atoms of each dipyridinopyrazine fragment via a “py–py” coordination. The newly synthesized porphyrazines were characterized by IR measurements in the solid state and UV-visible absorption spectroscopy in the polar nonaqueous solvents pyridine, dimethyl sulfoxide (DMSO) and dimethylformamide (DMF) as well as in water, the enhanced solubility in this medium being due to the presence of the external Pd(OAc)[Formula: see text] moieties. Data on the photosensitizing activity of the compounds for the generation of singlet oxygen, [Formula: see text]O[Formula: see text] were also obtained in DMF and should be of interest to researchers in the area of photodynamic therapy.
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Affiliation(s)
- Maria Pia Donzello
- Dipartimento di Chimica, Università di Roma Sapienza, P. le A. Moro 5, I-00185 Rome, Italy
| | - Fabio Gigante
- Dipartimento di Chimica, Università di Roma Sapienza, P. le A. Moro 5, I-00185 Rome, Italy
| | - Fabiola Sciscione
- Dipartimento di Chimica, Università di Roma Sapienza, P. le A. Moro 5, I-00185 Rome, Italy
| | - Elisa Viola
- Dipartimento di Chimica, Università di Roma Sapienza, P. le A. Moro 5, I-00185 Rome, Italy
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas, 77204-5003, USA
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7
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Sciscione F, Cong L, Donzello MP, Viola E, Ercolani C, Kadish KM. Octakis(2-pyridyl)porphyrazine and Its Neutral Metal Derivatives: UV–Visible Spectral, Electrochemical, and Photoactivity Studies. Inorg Chem 2017; 56:5813-5826. [DOI: 10.1021/acs.inorgchem.7b00418] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fabiola Sciscione
- Dipartimento di Chimica, Università di Roma Sapienza, P.le A. Moro 5, I-00185 Roma, Italy
| | - Lei Cong
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Maria Pia Donzello
- Dipartimento di Chimica, Università di Roma Sapienza, P.le A. Moro 5, I-00185 Roma, Italy
| | - Elisa Viola
- Dipartimento di Chimica, Università di Roma Sapienza, P.le A. Moro 5, I-00185 Roma, Italy
| | - Claudio Ercolani
- Dipartimento di Chimica, Università di Roma Sapienza, P.le A. Moro 5, I-00185 Roma, Italy
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
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8
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Viola E, Donzello MP, Sciscione F, Shah K, Ercolani C, Trigiante G. Tetra-2,3-pyrazinoporphyrazines with externally appended pyridine rings. 17. Photosensitizing properties and cellular effects of Zn II octacationic and Zn II /Pt II hexacationic macrocycles in aqueous media: Perspectives of multimodal anticancer potentialities. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 169:101-109. [DOI: 10.1016/j.jphotobiol.2017.03.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 03/08/2017] [Indexed: 11/26/2022]
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9
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Zhu J, Rodríguez-Corrales JÁ, Prussin R, Zhao Z, Dominijanni A, Hopkins SL, Winkel BSJ, Robertson JL, Brewer KJ. Exploring the activity of a polyazine bridged Ru(ii)–Pt(ii) supramolecule in F98 rat malignant glioma cells. Chem Commun (Camb) 2017; 53:145-148. [DOI: 10.1039/c6cc07978d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[(Ph2phen)2Ru(dpp)PtCl2]Cl2exhibits multiple light-dependent cytotoxicity pathways that preferentially target DNA, offering promise for the development of novel photodynamic therapy agents.
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Affiliation(s)
- Jie Zhu
- Department of Chemistry
- Virginia Tech
- Blacksburg
- USA
| | | | - Reece Prussin
- School of Biomedical Engineering and Sciences
- Virginia Tech
- Blacksburg
- USA
| | - Zongmin Zhao
- Department of Biological Systems Engineering
- Virginia Tech
- Blacksburg
- USA
| | | | | | | | - John L. Robertson
- School of Biomedical Engineering and Sciences
- Virginia Tech
- Blacksburg
- USA
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10
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Tetrapyrazinoporphyrazines and their metal derivatives. Part I: Synthesis and basic structural information. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.006] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Donzello MP, De Mori G, Viola E, Ercolani C, Ricciardi G, Rosa A. Tetra-2,3-pyrazinoporphyrazines with Externally Appended Pyridine Rings. 15. Effects of the Pyridyl Substituents and Fused Exocyclic Rings on the UV–Visible Spectroscopic Properties of Mg(II)–Porphyrazines: A Combined Experimental and DFT/TDDFT Study. Inorg Chem 2014; 53:8009-19. [DOI: 10.1021/ic500880m] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Maria Pia Donzello
- Dipartimento di Chimica, Università di Roma Sapienza, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Giorgia De Mori
- Dipartimento di Chimica, Università di Roma Sapienza, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Elisa Viola
- Dipartimento di Chimica, Università di Roma Sapienza, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Claudio Ercolani
- Dipartimento di Chimica, Università di Roma Sapienza, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Giampaolo Ricciardi
- Dipartimento di Scienze, Università della Basilicata, Viale
dell’Ateneo Lucano 10, I-85100 Potenza, Italy
| | - Angela Rosa
- Dipartimento di Scienze, Università della Basilicata, Viale
dell’Ateneo Lucano 10, I-85100 Potenza, Italy
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12
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Anand R, Manoli F, Manet I, Donzello MP, Viola E, Malanga M, Jicsinszky L, Fenyvesi E, Monti S. Fluorescent cyclodextrin carriers for a water soluble ZnII pyrazinoporphyrazine octacation with photosensitizer potential. RSC Adv 2014. [DOI: 10.1039/c3ra47034b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Novel, negatively charged, fluorescent cyclodextrin oligomers form highly stable complexes with a water soluble, octacationic porphyrazine photosensitizer in dimeric form.
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Affiliation(s)
- R. Anand
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
| | - F. Manoli
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
| | - I. Manet
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
| | - M. P. Donzello
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma, Italy
| | - E. Viola
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma, Italy
| | - M. Malanga
- CycloLab
- Cyclodextrin R&D Ltd
- H-1097 Budapest, Hungary
| | - L. Jicsinszky
- CycloLab
- Cyclodextrin R&D Ltd
- H-1097 Budapest, Hungary
| | - E. Fenyvesi
- CycloLab
- Cyclodextrin R&D Ltd
- H-1097 Budapest, Hungary
| | - S. Monti
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
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13
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Donzello MP, Vittori D, Futur D, Fu Z, Ercolani C, Kadish KM. Tetra-2,3-pyrazinoporphyrazines with externally appended pyridine rings 14: UV-visible spectral and electrochemical behavior of homo/heterobinuclear neutral and hexacationic macrocycles. J PORPHYR PHTHALOCYA 2013. [DOI: 10.1142/s1088424613500867] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Detailed UV-visible, electrochemical and spectroelectrochemical studies were carried out in DMSO on two known series of homo/heterobimetallic pyrazinoporphyrazine compounds, i.e.[( M′Cl 2) LM ] and [( PtCl 2)( CH 3)6 LM ]( I )6, where L = tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato anion, M = Zn II , Mg II ( H 2 O ) or Pd II and M′ = Pd II or Pt II . The [( M′Cl 2) LM ] compounds, as obtained from the mononuclear species [LM], undergo only subtle UV-visible spectral changes and exhibit practically unchanged half wave potentials for reduction; thus, peripheral coordination to the [LM] macrocycles of a single PdCl 2 or PtCl 2 unit at one of the external dipyridinopyrazine fragments only minimally disturbs the σ/π electronic distribution within the entire porphyrazine unit. In contrast, quaternization by CH 3 I of the six unligated pyridine N atoms of the species [( PtCl 2) LM ] leading to formation of the hexacations [( PtCl 2)( CH 3)6 LM ]6+ results in a significant bathochromic shift (5–15 nm) of the Q-band positions, thus suggesting an enhanced electron-withdrawing effect determined by an incremented displacement of the σ/π electronic system towards the periphery of the macrocycle. Accordingly, there is a facilitated thermodynamic uptake of electrons upon going from [( PtCl 2)( CH 3)6 LM ]6+ to [( PtCl 2)( CH 3)6 LM ] n (n = 5+ → 2+). Noteworthy, the UV-visible spectra of the salt-like species [( PtCl 2)( CH 3)6 LM ]( I )6 in water at c = 5 × 10-5 M ) indicate the presence of a monomer-dimer equilibrium, persistent even at very low concentrations (ca. 5 × 10-7 M).
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Affiliation(s)
- Maria Pia Donzello
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P. le A. Moro 5, I-00185 Rome, Italy
| | - Daniela Vittori
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P. le A. Moro 5, I-00185 Rome, Italy
| | - David Futur
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
| | - Zhen Fu
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
| | - Claudio Ercolani
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P. le A. Moro 5, I-00185 Rome, Italy
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
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14
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Carboranyl-porphyrazines and derivatives for boron neutron capture therapy: From synthesis to in vitro tests. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.03.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Barry NPE, Sadler PJ. Exploration of the medical periodic table: towards new targets. Chem Commun (Camb) 2013; 49:5106-31. [DOI: 10.1039/c3cc41143e] [Citation(s) in RCA: 570] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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16
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Manet I, Manoli F, Donzello MP, Viola E, Masi A, Andreano G, Ricciardi G, Rosa A, Cellai L, Ercolani C, Monti S. Pyrazinoporphyrazines with externally appended pyridine rings. 13. Structure, UV-visible spectral features, and noncovalent interaction with DNA of a positively charged binuclear (Zn(II)/Pt(II)) macrocycle with multimodal anticancer potentialities. Inorg Chem 2012; 52:321-8. [PMID: 23244699 DOI: 10.1021/ic3020755] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We investigated with spectroscopic techniques the noncovalent interaction of a bimetallic water-soluble (Zn(II)/Pt(II)) porphyrazine hexacation, [(PtCl(2))(CH(3))(6)LZn](6+), and its octacationic analogue [(CH(3))(8)LZn](8+), lacking the cis-platin-like functionality, with a 21-mer double strand (ds) 5'-d[GGG(TTAGGG)(3)]-3'/3'-d[CCC(AATCCC)(3)]-5', as model for B-DNA. Both hexacation and octacation tend to aggregate in water. The structure as well as the ground and excited-state electronic properties of the Zn(II)/Pt(II) hexacation [(PtCl(2))(CH(3))(6)LZn](6+) in water solution were investigated using density functional theory (DFT) and time-dependent DFT (TDDFT) methods. TDDFT calculations of the lowest excited states of [(PtCl(2))(CH(3))(6)LZn](6+) in water provided an accurate description of the Q-band spectral region. In particular, the calculated optical spectra were in agreement with the experimental ones, obtained in the presence of micelles favoring complete disruption of the aggregates. The model for dsDNA binding that emerges from the analysis of UV-vis absorption and time-resolved fluorescence data shows the presence of complexes of 1 dsDNA molecule with 1, 2, and 4 macrocycles. Comparing the results for the hexacation [(PtCl(2))(CH(3))(6)LZn](6+) with those for the [(CH(3))(8)LZn](8+)octacation, we observed a higher degree of monomerization for the [(PtCl(2))(CH(3))(6)LZn](6+) derivative.
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Affiliation(s)
- Ilse Manet
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, via Gobetti 101, I-40129 Bologna, Italy.
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17
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Donzello MP, Viola E, Ercolani C, Fu Z, Futur D, Kadish KM. Tetra-2,3-pyrazinoporphyrazines with externally appended pyridine rings. 12. New heteropentanuclear complexes carrying four exocyclic cis-platin-like functionalities as potential bimodal (PDT/cis-platin) anticancer agents. Inorg Chem 2012; 51:12548-59. [PMID: 23121685 DOI: 10.1021/ic301989a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Heteropentanuclear porphyrazines having the formula [(PtCl2)4LM] where L = tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato dianion and M = Zn(II), Mg(II)(H2O), Pd(II), Cu(II) or Co(II) were characterized by elemental analyses, IR-UV-visible spectroscopy and electrochemistry and the data compared to new and previously published results for the corresponding homopentanuclear compound [(PtCl2)4LPt]. This latter species has four external N2(py)PtCl2 coordination sites which closely resemble cis-platin, (NH3)2PtCl2, the potent chemotherapeutic anticancer drug, and is able to act as a photosensitizer for the generation of (1)O2, the cytotoxic agent in photodynamic therapy (PDT). UV-visible spectra and half wave potentials for reduction of [(PtCl2)4LM], [(PtCl2)4LPt], the parallel series of mononuclear [LM] compounds and the pentanuclear [(PdCl2)4LM] compounds were examined in the nonaqueous solvents dimethyl sulfoxide, pyridine, and dimethylformamide. The complete set of available data indicate that external coordination of the PtCl2 and PdCl2 units significantly increases the level of the electron-deficiency of the entire molecular framework despite the fact that these groups are far away from the central porphyrazine π-ring system and have coordination sites nearly orthogonal to the plane of the macrocycle. The pentanuclear species [(M'Cl2)4LM] (M' = Pt(II), Pd(II)) undergo multiple one-electron transfers and exhibit an easier reducibility as compared to related electrode reactions of the parent compounds [LM] having the same central metal. Aggregation phenomena and reducibility of the porphyrazines to their monoanionic form (prevalently in DMF) are observed for some of the examined compounds and were analyzed and accurately taken into account. Quantum yields of (1)O2 (ΦΔ), of interest in PDT, were measured for [(PtCl2)4LM] with M = Zn(II), Mg(II)(H2O), or Pd(II) and the related macrocycles [(PdCl2)4LM] and [LM] in dimethylformamide (DMF) and/or DMF preacidified with HCl (DMF/HCl, [HCl]: 1-2 × 10(-4) M). Excellent ΦΔ values (0.5-0.6) which qualify the compounds as potent photosensitizers in PDT were obtained for the pentanuclear species having Zn(II) or Pd(II) as central metal ions. The [(PtCl2)4LZn] and [(PtCl2)4LPd] complexes are of special interest as potential bimodal anticancer agents because of the incorporated four cis-platin-like functionalities.
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Affiliation(s)
- Maria Pia Donzello
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" , P.le A. Moro 5, I-00185 Roma, Italy
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Lau JTF, Lo PC, Fong WP, Ng DKP. A Zinc(II) Phthalocyanine Conjugated with an Oxaliplatin Derivative for Dual Chemo- and Photodynamic Therapy. J Med Chem 2012; 55:5446-54. [DOI: 10.1021/jm300398q] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Janet T. F. Lau
- Department
of Chemistry and ‡School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Pui-Chi Lo
- Department
of Chemistry and ‡School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Wing-Ping Fong
- Department
of Chemistry and ‡School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Dennis K. P. Ng
- Department
of Chemistry and ‡School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
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Donzello MP, Viola E, Mannina L, Barteri M, Fu Z, Ercolani C. Tetra-2,3-pyrazinoporphyrazines with externally appended pyridine rings: 11 Photoactivity of a new Pt(II) pentanuclear macrocycle bearing four cisplatin-like functionalities and its related monoplatinated species. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424611004014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The pentanuclear PtII porphyrazine compound [(PtCl2)4LPt] (L = tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato dianion), the mononuclear species [LPt] and the octacation [L′Pt]8+ (neutralized by I- ions; L′ = L octaquaternized at the pyridine N atoms) were synthesized and characterized by IR/UV-visible spectral measurements. 1H and 13C NMR spectral data on [(PtCl2)4 LPt] indicate that the four PtCl2 units are coordinated at the pyridine N atoms of the peripheral dipyridinopyrazine fragments ("py–py" coordination) and the largely prevalent conformational arrangement of the entire macrocycle, established to have the external N2(py)PtCl2 coordination sites all oriented on the same side with respect to the plane of the central porphyrazine framework, closely recalls that which was previously defined for the related PdII analog [(PdCl2)4LPd] . The currently investigated triad of PtII macrocycles, like the related PdII species, behave as photosensitizers for the generation of singlet oxygen, the cytotoxic agent active in photodynamic therapy (PDT). A bimodal anticancer potentiality is expressed by the pentaplatinated compound, [(PtCl2)4LPt] , which represents an unprecedented example of a multifunctional drug due to the presence of four contiguous cisplatin-like functionalities.
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Affiliation(s)
- Maria Pia Donzello
- Dipartimento di Chimica, Università di Roma "Sapienza", P. le A. Moro 5, I-00185 Roma, Italy
| | - Elisa Viola
- Dipartimento di Chimica, Università di Roma "Sapienza", P. le A. Moro 5, I-00185 Roma, Italy
| | - Luisa Mannina
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma "Sapienza", P. le A. Moro 5, I-00185 Roma, Italy
| | - Mario Barteri
- Dipartimento di Chimica, Università di Roma "Sapienza", P. le A. Moro 5, I-00185 Roma, Italy
| | - Zhen Fu
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
| | - Claudio Ercolani
- Dipartimento di Chimica, Università di Roma "Sapienza", P. le A. Moro 5, I-00185 Roma, Italy
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Donzello MP, Vittori D, Viola E, Manet I, Mannina L, Cellai L, Monti S, Ercolani C. Tetra-2,3-pyrazinoporphyrazines with Externally Appended Pyridine Rings. 9. Novel Heterobimetallic Macrocycles and Related Hydrosoluble Hexacations as Potentially Active Photo/Chemotherapeutic Anticancer Agents. Inorg Chem 2011; 50:7391-402. [DOI: 10.1021/ic200498s] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | | | - Ilse Manet
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, via P. Gobetti 101, 40129 Bologna, Italy
| | | | - Luciano Cellai
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Area della Ricerca di Roma 1, 00015 Monterotondo Scalo, Rome, Italy
| | - Sandra Monti
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, via P. Gobetti 101, 40129 Bologna, Italy
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