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Bonastre-Sabater I, Lopera A, Martínez-Camarena Á, Blasco S, Doménech-Carbó A, Jiménez HR, Verdejo B, García-España E, Clares MP. Exo- or endo-1 H-pyrazole metal coordination modulated by the polyamine chain length in [1 + 1] condensation azamacrocycles. Binuclear complexes with remarkable SOD activity. Dalton Trans 2024. [PMID: 38973348 DOI: 10.1039/d4dt01236d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
The Cu2+ complexes of three [1 + 1] azacyclophane macrocycles having the 1H-pyrazole ring as the spacer and the pentaamine 1,5,8,11,15-pentaazadecane (L1) or hexaamines 1,5,8,12,15,19-hexaazanonadecane (L2) and 1,5,9,13,17,21-hexaazaheneicosane (L3) as bridges show endo- coordination of the pyrazolate bridge giving rise to discrete monomeric species. Previously reported pyrazolacyclophanes evidenced, however, exo-coordination with the formation of dimeric species of 2 : 2, 3 : 2 or even 4 : 2 Cu2+ : L stoichiometry. The complexes have been characterized in solution using potentiometric studies, UV-Vis spectroscopy, paramagnetic NMR, cyclic voltammetry and mass spectrometry. The measurements show that all three ligands have as many protonation steps in water as secondary amines are in the bridge, while they are able to form both mono- and binuclear Cu2+ species. The crystal structures of the complexes [Cu(HL1)Br]Br(1+x)(ClO4)(1-x)·yH2O (1) and [Cu2(H-1L2)Cl(ClO4)](ClO4)·H2O·C2H5OH (2) have been solved by X-ray diffraction studies. In 1 the metal ion lies at one side of the macrocyclic cavity being coordinated by one nitrogen of the pyrazolate moiety and the three consecutive nitrogen atoms of the polyamine bridge. The other nitrogen of the pyrazole ring is hydrogen-bonded to an amine group. In 2 the two metal ions are interconnected by a pyrazolate bis(monodentate) moiety and complete their coordination spheres with three amines and either a bromide or a perchlorate anion, which occupy the axial positions of distorted square pyramid geometries. Paramagnetic NMR studies of the binuclear complexes confirm the coordination pattern observed in the crystal structures. Cyclic voltamperommetry data show potentials within the adequate range to exhibit superoxide dismutase (SOD) activity. The IC50 values calculated by McCord-Fridovich enzymatic assays show that the binuclear Cu2+ complexes of L2 and L3 have SOD activities that rank amongst the highest ones reported so far.
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Affiliation(s)
- Irene Bonastre-Sabater
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular. Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Alberto Lopera
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular. Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Álvaro Martínez-Camarena
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular. Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, avda. Complutense s/n, 28040 Madrid, Spain
| | - Salvador Blasco
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular. Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Antonio Doménech-Carbó
- Departamento de Química Analítica, Universidad de Valencia, Calle Dr Moliner s/n, 46100 Burjassot, Valencia, Spain
| | - Hermas R Jiménez
- Departamento de Química Inorgánica, Universidad de Valencia, Calle Doctor Moliner s/n, 46100 Burjasot, Valencia, Spain
| | - Begoña Verdejo
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular. Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Enrique García-España
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular. Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - M Paz Clares
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular. Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
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2
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Bolkvadze V, Bondar D, Vaher M, Halling E, Gorbatsova J, Mazina-Šinkar J. The influence of organic solvents on phenylethylamines in capillary zone electrophoresis. J Chromatogr A 2022; 1675:463169. [DOI: 10.1016/j.chroma.2022.463169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 11/16/2022]
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3
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Ceborska M, Dąbrowa K, Cędrowski J, Zimnicka M. Hydrogen-bonded supramolecular assemblies of folic acid with simple hexoses. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Martín‐Montes Á, Kolodová K, Marín C, Rosales‐Lombardo MJ, Sánchez‐Moreno M, de Andrés‐Gordo L, Cano C, Campayo L, Gómez‐Muñoz A, Sanz AM, Yunta MJR. In vitro Leishmanicidal and Trypanosomicidal Properties of Imidazole-Containing Azine and Benzoazine Derivatives. ChemMedChem 2021; 16:3600-3614. [PMID: 34665510 PMCID: PMC9298202 DOI: 10.1002/cmdc.202100413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/14/2021] [Indexed: 11/25/2022]
Abstract
Leishmaniasis and Chagas diseases are two of the most important parasitic diseases in the world. Both belong to the category of Neglected Tropical Diseases, and they cannot be prevented by vaccination. Their treatments are founded in outdated drugs that possess many pernicious side-effects and they're not easy to administer. With the aim of discovering new compounds that could serve as anti-trypanosomal drugs, an antiparasitic study of a synthetic compound family has been conducted. A series of new 1,4-bis(alkylamino)- and 1-alkylamino-4-chloroazine and benzoazine derivatives 1-4 containing imidazole rings have been synthesized and identified. Their structures showed a possible interest based on previous work. Their in vitro anti-Leishmania infantum, anti-L. braziliensis, anti-L. donovani and anti-T. cruzi activity were tested, as well as the inhibition of Fe-SOD enzymes. It was found that some of them exhibited quite relevant values indicative of being worthy of future more detailed studies, as most of them showed activity to more than only one parasite species, especially compound 3 c was active for the three studied Leishmania species and also for T. cruzi, which is a very interesting trait as it covers a wide spectrum.
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Affiliation(s)
- Álvaro Martín‐Montes
- Departamento de ParasitologíaFacultad de CienciasUniversidad de Granada18071GranadaSpain
| | - Kristina Kolodová
- Klinik und Poliklinik für Innere Medizin IIIUniversitätsklinikum RegensburgFranz-Josef-Strauss-Allee 1193053RegensburgGermany
| | - Clotilde Marín
- Departamento de ParasitologíaFacultad de CienciasUniversidad de Granada18071GranadaSpain
| | | | - Manuel Sánchez‐Moreno
- Departamento de ParasitologíaFacultad de CienciasUniversidad de Granada18071GranadaSpain
| | | | - Carmen Cano
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad Complutense28040MadridSpain
| | - Lucrecia Campayo
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad Complutense28040MadridSpain
| | | | - Ana M. Sanz
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad Complutense28040MadridSpain
| | - María J. R. Yunta
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad Complutense28040MadridSpain
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5
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Pitarch-Jarque J, Jiménez HR, Kalenius E, Blasco S, Lopera A, Clares MP, Rissanen K, García-España E. Selective encapsulation of a chloride anion in a 1 H-pyrazole Cu 2+ metallocage. Dalton Trans 2021; 50:9010-9015. [PMID: 34180936 DOI: 10.1039/d1dt01302e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A self-assembled metallobox from copper(ii) and two macrocycles containing 1H-pyrazole ligands has been prepared. The internal cavity of the box is able to selectively encapsulate a single chloride anion over any other halide anion.
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Affiliation(s)
- Javier Pitarch-Jarque
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain.
| | - Hermas R Jiménez
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain.
| | - Elina Kalenius
- University of Jyväskylä, Department of Chemistry, P.O. Box. 35, FI-40014, Finland
| | - Salvador Blasco
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain.
| | - Alberto Lopera
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain.
| | - M Paz Clares
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain.
| | - Kari Rissanen
- University of Jyväskylä, Department of Chemistry, P.O. Box. 35, FI-40014, Finland
| | - Enrique García-España
- Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain.
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6
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Ferguson Johns HP, Harrison EE, Stingley KJ, Waters ML. Mimicking Biological Recognition: Lessons in Binding Hydrophilic Guests in Water. Chemistry 2021; 27:6620-6644. [PMID: 33048395 DOI: 10.1002/chem.202003759] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Indexed: 01/25/2023]
Abstract
Selective molecular recognition of hydrophilic guests in water plays a fundamental role in a vast number of biological processes, but synthetic mimicry of biomolecular recognition in water still proves challenging both in terms of achieving comparable affinities and selectivities. This Review highlights strategies that have been developed in the field of supramolecular chemistry to selectively and non-covalently bind three classes of biologically relevant molecules: nucleotides, carbohydrates, and amino acids. As several groups have systematically modified receptors for a specific guest, an evolutionary perspective is also provided in some cases. Trends in the most effective binding forces for each class are described, providing insight into selectivity and potential directions for future work.
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Affiliation(s)
- Hannah P Ferguson Johns
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Emily E Harrison
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kyla J Stingley
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Marcey L Waters
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
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7
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Tairov MA, Levchenko V, Stadniy IA, Dmytriv YV, Dehtiarov SO, Kibalnyi MO, Melnyk AV, Veselovych SY, Borodulin YV, Kolotilov SV, Ryabukhin SV, Volochnyuk DM. Practical Synthetic Method for Functionalized 1-Methyl-3/5-(trifluoromethyl)-1H-pyrazoles. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Maxim A. Tairov
- Enamine Ltd., 78 Chervonotkatska Street, Kyiv 02094, Ukraine
| | | | - Ivan A. Stadniy
- Enamine Ltd., 78 Chervonotkatska Street, Kyiv 02094, Ukraine
| | - Yurii V. Dmytriv
- Enamine Ltd., 78 Chervonotkatska Street, Kyiv 02094, Ukraine
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremohy Avenue, Kyiv 03056, Ukraine
| | | | | | - Anton V. Melnyk
- Enamine Ltd., 78 Chervonotkatska Street, Kyiv 02094, Ukraine
| | | | | | - Sergey V. Kolotilov
- L. V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of Ukraine, Prospekt Nauki 31, Kyiv 03028, Ukraine
| | - Sergey V. Ryabukhin
- Enamine Ltd., 78 Chervonotkatska Street, Kyiv 02094, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Dmitriy M. Volochnyuk
- Enamine Ltd., 78 Chervonotkatska Street, Kyiv 02094, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska Street, Kyiv 02660, Ukraine
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8
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Kashyap S, Singh R, Singh UP. Inorganic and organic anion sensing by azole family members. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213369] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Lopera A, Gil-Martínez A, Pitarch-Jarque J, Verdejo B, Blasco S, Clares MP, Jiménez HR, García-España E. Influence of the chain length and metal : ligand ratio on the self-organization processes of Cu 2+ complexes of [1 + 1] 1H-pyrazole azamacrocycles. Dalton Trans 2020; 49:8614-8624. [PMID: 32543616 DOI: 10.1039/d0dt01056a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Three new [1 + 1] macrocycles formed by the reaction of 1H-3,5-bis(chloromethyl)pyrazole with the tosylated amines 1,4,7,10-tetraazadecane (L1), 1,4,8,11-tetraazaundecane (L2) and 1,5,10,14-tetraazatetradecane (L3) are described. Potentiometric studies and HR-ESI-Mass spectrometry show the formation of dimeric binuclear Cu2+ complexes whose organization depends on the type of hydrocarbon chains connecting the amine groups. Furthermore, trinuclear or/and tetranuclear complexes are formed depending also on the length of the polyaminic bridge and on the sequence of the hydrocarbon chains. The crystal structures of the [2 + 2] [Cu2(H(H-1L2))2](ClO4)4·4H2O (1) and [Cu2(H-1L2)2](ClO4)2 (2) complexes show in both of them two macrocycles self-assembled by the metal ions which interconnect their pyrazolate fragments that behave as bis(monodentate) ligands. While in 1 one central amine of each macrocycle binds to the axial position of a distorted square-pyramid and the other ones remain protonated, in 2 all the amine groups are involved in the coordination giving rise to a strongly distorted octahedral geometry. Paramagnetic 1H NMR measurements support that these structures also form in solution. Interestingly, tetranuclear complexes [Cu4(H-1L4)2(OH)2.08](ClO4)2.92Br0.54Cl0.46 (3) and [Pd2.39Cu1.61(H-1L4)2(OH)2](ClO4)2Cl1.33Br0.67·2.87H2O (4) have been isolated for the macrocycle containing the 1,5,9,13-tetraamine chain (L4). 3 has two binucleating units, one of them formed by the pyrazolate moieties and their neighbouring secondary amines and the other by the two central amines of both macrocycles. This latter Cu2+ coordination site is completed by two hydroxide anions as bridging ligands. 4 was obtained from a solution prepared to achieve full formation of the dimeric cage [Cu2(H-1(HL4))2]4+ by addition of K2PdCl4. The Pd2+ ion due to its softer acidic characteristics displaces the Cu2+ ions from the pyrazolate site. UV-vis spectroscopy suggests that the exchange is completed at room temperature after one hour.
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Affiliation(s)
- Alberto Lopera
- Instituto de Ciencia Molecular, Universidad de Valencia, c/Catedrático José Beltrán Martínez 2, 46980 Paterna, Valencia, Spain.
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10
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Urbanovský P, Kotek J, Císařová I, Hermann P. Selective and clean synthesis of aminoalkyl- H-phosphinic acids from hypophosphorous acid by phospha-Mannich reaction. RSC Adv 2020; 10:21329-21349. [PMID: 35518776 PMCID: PMC9059144 DOI: 10.1039/d0ra03075a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 05/15/2020] [Indexed: 12/25/2022] Open
Abstract
Aminoalkyl-H-phosphinic acids, also called aminoalkylphosphonous acids, are investigated as biologically active analogues of carboxylic amino acids and/or as valuable intermediates for synthesis of other aminoalkylphosphorus acids. Their synthesis has been mostly accomplished by phospha-Mannich reaction of a P–H precursor, an aldehyde and an amine. The reaction is rarely clean and high-yielding. Here, reaction of H3PO2 with secondary amines and formaldehyde in wet AcOH led to aminomethyl-H-phosphinic acids in nearly quantitative yields and with almost no by-products. Surprisingly, the reaction outcome depended on the basicity of the amines. Amines with pKa > 7–8 gave the desired products. For less basic amines, reductive N-methylation coupled with oxidation of H3PO2 to H3PO3 became a relevant side reaction. Primary amines reacted less clearly and amino-bis(methyl-H-phosphinic acids) were obtained only for very basic amines. Reaction yields with higher aldehydes were lower. Unique carboxylic–phosphinic–phosphonic acids as well as poly(H-phosphinic acids) derived from polyamines were obtained. Synthetic usefulness of the aminoalkyl-H-phosphinic was illustrated in P–H bond oxidation and its addition to double bonds, and in selective amine deprotection. Compounds with an ethylene-diamine fragment, e.g. most common polyazamacrocycles, are not suitable substrates. The X-ray solid-state structures of seventeen aminoalkyl-phosphinic acids were determined. In the reaction mechanism, N-hydroxyalkyl species R2NCH2OH and [R2N(CH2OH)2]+, probably stabilized as acetate esters, are suggested as the reactive intermediates. This mechanism is an alternative one to the known phospha-Mannich reaction mechanisms. The conditions can be utilized in syntheses of various aminoalkylphosphorus compounds. Acetic acid was used as a new solvent for phospha-Mannich reaction leading to clear reaction mixtures and high yields of the aminoalkylphosphonous acids (AHPA), and hydroxymethylated species were suggested as key intermediates in the reaction.![]()
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Affiliation(s)
- Peter Urbanovský
- Department of Inorganic Chemistry, Faculty of Science, Universita Karlova (Charles University) Hlavova 8/2030, 12843 Prague 2 Czech Republic +420-22195-1253 +420-22195-1263
| | - Jan Kotek
- Department of Inorganic Chemistry, Faculty of Science, Universita Karlova (Charles University) Hlavova 8/2030, 12843 Prague 2 Czech Republic +420-22195-1253 +420-22195-1263
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Universita Karlova (Charles University) Hlavova 8/2030, 12843 Prague 2 Czech Republic +420-22195-1253 +420-22195-1263
| | - Petr Hermann
- Department of Inorganic Chemistry, Faculty of Science, Universita Karlova (Charles University) Hlavova 8/2030, 12843 Prague 2 Czech Republic +420-22195-1253 +420-22195-1263
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11
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Alfonso I, Solà J. Molecular Recognition of Zwitterions with Artificial Receptors. Chem Asian J 2020; 15:986-994. [PMID: 32017445 DOI: 10.1002/asia.201901789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/20/2020] [Indexed: 01/02/2023]
Abstract
Many biomolecules exist as internal ion pairs or zwitterions within a biologically relevant pH range. Despite their importance, the molecular recognition of this type of systems is specially challenging due to their strong solvation in aqueous media, and their trend to form folded or self-assembled structures by pairing of charges of different sign. In this Minireview, we will discuss the molecular recognition of zwitterions using non-natural, synthetic receptors. This contribution does not intend to make a full in-depth revision of the existing research in the field, but a personal overview with selected representative examples from the recent literature.
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Affiliation(s)
- Ignacio Alfonso
- Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia Jordi, Girona 18-26, 08034, Barcelona, Spain
| | - Jordi Solà
- Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia Jordi, Girona 18-26, 08034, Barcelona, Spain
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12
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Synthesis and oxidation of all isomeric 2-(pyrazolyl)ethanols. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02662-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Cho SY, Mochida T. Thermal Properties and Crystal Structures of Rhenium(I) Carbonyl Complexes with Tridentate Ligands: Preparation of Rhenium-Containing Ionic Liquids. Inorg Chem 2019; 59:847-853. [DOI: 10.1021/acs.inorgchem.9b03108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sok-Yong Cho
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe, Hyogo 657-8501, Japan
| | - Tomoyuki Mochida
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe, Hyogo 657-8501, Japan
- Center for Membrane Technology, Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan
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14
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Yunta MJR, Dietrich RC. Tropical and Subtropical Parasitic Diseases: Targets for a New Approach to Virtual Screening. Mol Inform 2019; 38:e1900052. [PMID: 31490642 DOI: 10.1002/minf.201900052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/26/2019] [Indexed: 11/11/2022]
Abstract
Computational techniques are widely used to reduce costs associated with new drug development with the ability to bind a specific molecular target. These studies need a Brookhaven protein data bank structure sample of the enzyme interaction with an inhibitor of adequate size. In this context, a new computational methodology is postulated to be used when there are no published samples fulfilling this requirements. In this study, 7 compounds, which showed anti-T. cruzi, L. donovani and L. infantum properties, and proved to be inhibitors of their Fe-SOD enzymes, have been theoretically evaluated against related parasites Fe-SOD enzymes, which have been proposed as targets for antiparasitic drugs. This methodology may be applied to similar cases and also to generate starting structures to be used with different CADD methods.
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Affiliation(s)
- Maria J R Yunta
- Organic Chemistry Department, Universidad Complutense, E-28040, Madrid, Spain
| | - Roque Carlos Dietrich
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP). La Plata, Buenos Aires, Argentina
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15
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Design and synthesis of novel polyamine collector to recover iron values from iron ore slimes. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.10.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Chen JL, Zhao Y, Gong YJ, Pan BB, Wang X, Su XC. Stable and rigid DTPA-like paramagnetic tags suitable for in vitro and in situ protein NMR analysis. JOURNAL OF BIOMOLECULAR NMR 2018; 70:77-92. [PMID: 29224182 DOI: 10.1007/s10858-017-0160-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/05/2017] [Indexed: 06/07/2023]
Abstract
Organic synthesis of a ligand with high binding affinities for paramagnetic lanthanide ions is an effective way of generating paramagnetic effects on proteins. These paramagnetic effects manifested in high-resolution NMR spectroscopy are valuable dynamic and structural restraints of proteins and protein-ligand complexes. A paramagnetic tag generally contains a metal chelating moiety and a reactive group for protein modification. Herein we report two new DTPA-like tags, 4PS-PyDTTA and 4PS-6M-PyDTTA that can be site-specifically attached to a protein with a stable thioether bond. Both protein-tag adducts form stable lanthanide complexes, of which the binding affinities and paramagnetic tensors are tunable with respect to the 6-methyl group in pyridine. Paramagnetic relaxation enhancement (PRE) effects of Gd(III) complex on protein-tag adducts were evaluated in comparison with pseudocontact shift (PCS), and the results indicated that both 4PS-PyDTTA and 4PS-6M-PyDTTA tags are rigid and present high-quality PREs that are crucially important in elucidation of the dynamics and interactions of proteins and protein-ligand complexes. We also show that these two tags are suitable for in-situ protein NMR analysis.
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Affiliation(s)
- Jia-Liang Chen
- State Key Laboratory of Elemento-Organic Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yu Zhao
- State Key Laboratory of Elemento-Organic Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yan-Jun Gong
- State Key Laboratory of Elemento-Organic Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Bin-Bin Pan
- State Key Laboratory of Elemento-Organic Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xiao Wang
- State Key Laboratory of Elemento-Organic Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xun-Cheng Su
- State Key Laboratory of Elemento-Organic Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China.
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17
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Haslak ZP, Bozkurt E, Dutagaci B, De Proft F, Aviyente V, De Vleeschouwer F. A DFT approach to discriminate the antagonist and partial agonist activity of ligands binding to the NMDA receptor. Mol Phys 2018. [DOI: 10.1080/00268976.2017.1384579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Zeynep Pinar Haslak
- Department of Chemistry, Bogaziçi University, Bebek, Istanbul, Turkey
- Faculty of Science and Letters, Piri Reis University, Tuzla, Istanbul, Turkey
| | - Esra Bozkurt
- Department of Chemistry, Bogaziçi University, Bebek, Istanbul, Turkey
- Laboratory of Computational Chemistry and Biochemistry, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Bercem Dutagaci
- Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, Michigan, MI, USA
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Viktorya Aviyente
- Department of Chemistry, Bogaziçi University, Bebek, Istanbul, Turkey
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18
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Zhao D, Liu XH, Zhu C, Kang YS, Wang P, Shi Z, Lu Y, Sun WY. Efficient and Reusable Metal-Organic Framework Catalysts for Carboxylative Cyclization of Propargylamines with Carbon Dioxide. ChemCatChem 2017. [DOI: 10.1002/cctc.201701190] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Dan Zhao
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
| | - Xiao-Hui Liu
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
| | - Chendan Zhu
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
| | - Yan-Shang Kang
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
| | - Peng Wang
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
| | - Yi Lu
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
| | - Wei-Yin Sun
- State Key Laboratory of Coordination Chemistry; Coordination Chemistry Institute; School of Chemistry and Chemical Engineering; Nanjing National Laboratory of Microstructure; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210023 China
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19
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Kopchuk DS, Pavlyuk DE, Kovalev IS, Zyryanov GV, Rusinov VL, Chupakhin ON. Synthesis of a new DTTA- and 5-phenyl-2,2′-bipyridine-based ditopic ligand and its Eu3+ complex. CAN J CHEM 2016. [DOI: 10.1139/cjc-2015-0576] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new ditopic ligand based on diethylenetriamine-N,N,N″,N″-tetraacetate (DTTA) and 5-phenyl-2,2′-bipyridine has been synthesized. The improved method for the synthesis of DTTA tert-butyl ester has been developed. The water-soluble Eu3+*DTTA complex of this ligand has been prepared, and its photophysical properties have been studied. Due to the presence of an extra chelating unit, 5-phenyl-2,2′-bipyridine, this Eu3+*DTTA complex demonstrated a strong fluorescence response to the Zn2+ cation (fluorescence enhancement) and the simultaneous fluorescent and phosphorescent response (fluorescence and phosphorescence quenching) to the Cu2+ or Ni2+ cations in aqueous solutions.
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Affiliation(s)
- Dmitry S. Kopchuk
- Ural Federal University, 19, Mira St., 620002 Yekaterinburg, Russian Federation
- Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20, S. Kovalevskoy/Akademicheskaya St., 620990 Yekaterinburg, Russian Federation
| | - Dmitry E. Pavlyuk
- Ural Federal University, 19, Mira St., 620002 Yekaterinburg, Russian Federation
| | - Igor S. Kovalev
- Ural Federal University, 19, Mira St., 620002 Yekaterinburg, Russian Federation
| | - Grigory V. Zyryanov
- Ural Federal University, 19, Mira St., 620002 Yekaterinburg, Russian Federation
- Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20, S. Kovalevskoy/Akademicheskaya St., 620990 Yekaterinburg, Russian Federation
| | - Vladimir L. Rusinov
- Ural Federal University, 19, Mira St., 620002 Yekaterinburg, Russian Federation
- Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20, S. Kovalevskoy/Akademicheskaya St., 620990 Yekaterinburg, Russian Federation
| | - Oleg N. Chupakhin
- Ural Federal University, 19, Mira St., 620002 Yekaterinburg, Russian Federation
- Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20, S. Kovalevskoy/Akademicheskaya St., 620990 Yekaterinburg, Russian Federation
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20
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Warr RJ, Bell KJ, Gadzhieva A, Cabot R, Ellis RJ, Chartres J, Henderson DK, Lykourina E, Wilson AM, Love JB, Tasker PA, Schröder M. A Comparison of the Selectivity of Extraction of [PtCl6](2-) by Mono-, Bi-, and Tripodal Receptors That Address Its Outer Coordination Sphere. Inorg Chem 2016; 55:6247-60. [PMID: 27256829 DOI: 10.1021/acs.inorgchem.6b00848] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Extraction and binding studies of [PtCl6](2-) are reported for 24 mono-, bi-, and tripodal extractants containing tris(2-aminoethyl)amine (TREN) or tris(3-aminopropyl)amine (TRPN) scaffolds. These reagents are designed to recognize the outer coordination sphere of [PtCl6](2-) and to show selectivity over chloride anion under acidic conditions. Extraction from 0.6 M HCl involves protonation of the N-center in tertiary amines containing one, two, or three urea, amide, or sulfonamide hydrogen-bond donors to set up the following equilibrium: 2L(org) + 2H(+) + [PtCl6](2-) ⇌ [(LH)2PtCl6](org). All reagents show higher Pt loading than trioctylamine, which was used as a positive control to represent commercial trialkylamine reagents. The loading of [PtCl6](2-) depends on the number of pendant amides in the extractant and follows the order tripodal > bipodal > monopodal, with urea-containing extractants outperforming amide and sulfonamide analogues. A different series of reagents in which one, two, or three of the alkyl groups in tris-2-ethylhexylamine are replaced by 3-N'-hexylpropanamide groups all show a comparably high affinity for [PtCl6](2-) and high selectivity over chloride anion in extractions from aqueous acidic solutions. (1)H NMR titration of three extractants [LH·Cl] with [(Oct4N)2PtCl6] in CDCl3 provides evidence for high selectivity for [PtCl6](2-) over chloride for tri- and bipodal extractants, which show higher binding constants than a monopodal analogue.
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Affiliation(s)
- Rebecca J Warr
- School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K
| | - Katherine J Bell
- School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K
| | | | - Rafel Cabot
- School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K
| | - Ross J Ellis
- EaStCHEM School of Chemistry, University of Edinburgh , Edinburgh, EH9 3FJ, U.K
| | - Jy Chartres
- EaStCHEM School of Chemistry, University of Edinburgh , Edinburgh, EH9 3FJ, U.K
| | - David K Henderson
- EaStCHEM School of Chemistry, University of Edinburgh , Edinburgh, EH9 3FJ, U.K
| | - Eleni Lykourina
- School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K
| | - A Matthew Wilson
- EaStCHEM School of Chemistry, University of Edinburgh , Edinburgh, EH9 3FJ, U.K
| | - Jason B Love
- EaStCHEM School of Chemistry, University of Edinburgh , Edinburgh, EH9 3FJ, U.K
| | - Peter A Tasker
- EaStCHEM School of Chemistry, University of Edinburgh , Edinburgh, EH9 3FJ, U.K
| | - Martin Schröder
- School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.,School of Chemistry, University of Manchester , Manchester, M13 9PL, U.K
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21
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Bartoli F, Bencini A, Conti L, Giorgi C, Valtancoli B, Paoli P, Rossi P, Le Bris N, Tripier R. Catching anions with coloured assemblies: binding of pH indicators by a giant-size polyammonium macrocycle for anion naked-eye recognition. Org Biomol Chem 2016; 14:8309-21. [DOI: 10.1039/c6ob01474g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Among inorganic anions, only triphosphate displaces bromocresol purple from its assembly with a tetra-cyclam macrocycle, allowing for its selective colorimetric detection.
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Affiliation(s)
- Francesco Bartoli
- Dipartimento di Chimica ‘Ugo Schiff’
- Università degli Studi di Firenze
- Sesto Fiorentino
- Italy
| | - Andrea Bencini
- Dipartimento di Chimica ‘Ugo Schiff’
- Università degli Studi di Firenze
- Sesto Fiorentino
- Italy
| | - Luca Conti
- Dipartimento di Chimica ‘Ugo Schiff’
- Università degli Studi di Firenze
- Sesto Fiorentino
- Italy
| | - Claudia Giorgi
- Dipartimento di Chimica ‘Ugo Schiff’
- Università degli Studi di Firenze
- Sesto Fiorentino
- Italy
| | - Barbara Valtancoli
- Dipartimento di Chimica ‘Ugo Schiff’
- Università degli Studi di Firenze
- Sesto Fiorentino
- Italy
| | - Paola Paoli
- Dipartimento di Ingegneria Industriale
- Università degli Studi di Firenze
- Firenze
- Italy
| | - Patrizia Rossi
- Dipartimento di Ingegneria Industriale
- Università degli Studi di Firenze
- Firenze
- Italy
| | - Nathalie Le Bris
- UMR-CNRS 6521
- UFR des Sciences et Techniques
- 6 avenue Victor le Gorgeu
- C.S. 93837
- Université de Bretagne Occidentale
| | - Raphael Tripier
- UMR-CNRS 6521
- UFR des Sciences et Techniques
- 6 avenue Victor le Gorgeu
- C.S. 93837
- Université de Bretagne Occidentale
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22
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Olmo F, Gómez-Contreras F, Navarro P, Marín C, Yunta MJ, Cano C, Campayo L, Martín-Oliva D, Rosales MJ, Sánchez-Moreno M. Synthesis and evaluation of in vitro and in vivo trypanocidal properties of a new imidazole-containing nitrophthalazine derivative. Eur J Med Chem 2015; 106:106-19. [DOI: 10.1016/j.ejmech.2015.10.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 10/18/2015] [Accepted: 10/20/2015] [Indexed: 11/30/2022]
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23
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Chelli R, Pietraperzia G, Bencini A, Giorgi C, Lippolis V, Salvi PR, Gellini C. A fluorescent receptor for halide recognition: clues for the design of anion chemosensors. Phys Chem Chem Phys 2015; 17:10813-22. [PMID: 25814174 DOI: 10.1039/c5cp00131e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The chemosensing properties of the polyaza-macrocycle 1-(6,7)-acridine-3,6,9,12-tetraaza-tridecaphane have been investigated by means of emission fluorescence spectroscopy, considering halide ions as substrates. As in the case of the free ligand, the fluorescence emission of the complexes is due to the acridinium species which are formed after photoinduced proton transfer reaction. The complexation constants have been obtained for the bi- and tri-protonated ligands in deoxygenated aqueous solutions. Two different emission behaviours have been observed varying the anion. Fluoride and chloride give rise to fluorescence enhancement whereas bromide and iodide strongly quench the emission. The macrocycle shows an unusual higher selectivity towards the chloride anion rather than fluoride. The fluorescence emission has been modelled considering a modified Stern-Volmer equation, taking into account the quenching effects of the largest anions, which can be considered negligible for fluoride and chloride anions. Ab initio calculations allow us to interpret the fluorescence emission of the complexes in terms of activation energy related to the proton transfer reaction responsible for the emission process.
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Affiliation(s)
- Riccardo Chelli
- Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy.
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24
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Imidazole-containing phthalazine derivatives inhibit Fe-SOD performance in Leishmania species and are active in vitro against visceral and mucosal leishmaniasis. Parasitology 2015; 142:1115-29. [DOI: 10.1017/s0031182015000219] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
SUMMARYThe in vitro leishmanicidal activity of a series of imidazole-containing phthalazine derivatives 1–4 was tested on Leishmania infantum, Leishmania braziliensis and Leishmania donovani parasites, and their cytotoxicity on J774·2 macrophage cells was also measured. All compounds tested showed selectivity indexes higher than that of the reference drug glucantime for the three Leishmania species, and the less bulky monoalkylamino substituted derivatives 2 and 4 were clearly more effective than their bisalkylamino substituted counterparts 1 and 3. Both infection rate measures and ultrastructural alterations studies confirmed that 2 and 4 were highly leishmanicidal and induced extensive parasite cell damage. Modifications to the excretion products of parasites treated with 2 and 4 were also consistent with substantial cytoplasmic alterations. On the other hand, the most active compounds 2 and 4 were potent inhibitors of iron superoxide dismutase enzyme (Fe-SOD) in the three species considered, whereas their impact on human CuZn-SOD was low. Molecular modelling suggests that 2 and 4 could deactivate Fe-SOD due to a sterically favoured enhanced ability to interact with the H-bonding net that supports the antioxidant features of the enzyme.
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Abstract
Macrocycles possess desirable properties that make them promising candidates for the discovery of novel drugs. They present structural features to favor bioactive conformations, selectivity to the receptors, cell permeability and metabolic stability. More effective and nontoxic drugs to cure human African trypanosomiasis, Leishmaniasis and Chagas disease are needed, especially because resistance has been detected. Therefore, major efforts should be made for investigation in new bioactive compounds exhibiting different mechanisms of action. Macrocycles might fulfill the expectations for the development of new drugs to treat those diseases. In the current review, we focus on macrocycles exhibiting biological activities as antitrypanosomal and/or antileishmanial. The isolation, synthetic and biological studies of this class of compounds published from 2005 to 2014 are summarized.
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26
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Curiel D, Más-Montoya M, Sánchez G. Complexation and sensing of dicarboxylate anions and dicarboxylic acids. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.010] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Mateus P, Delgado R, André V, Duarte MT. Dicarboxylate Recognition Properties of a Dinuclear Copper(II) Cryptate. Inorg Chem 2014; 54:229-40. [DOI: 10.1021/ic502230q] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Pedro Mateus
- Instituto de Tecnologia Química
e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Rita Delgado
- Instituto de Tecnologia Química
e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Vânia André
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - M. Teresa Duarte
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
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28
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Bregier-Jarzebowska R. Stability and Solution Structure of Binary and Ternary Cu(II) Complexes with l-Glutamic Acid and Diamines as Well as Adducts in Metal-Free Systems in Aqueous Solution. J SOLUTION CHEM 2014; 43:2144-2162. [PMID: 25484474 PMCID: PMC4255084 DOI: 10.1007/s10953-014-0269-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 08/31/2014] [Indexed: 11/29/2022]
Abstract
Binary and ternary complexes of copper(II) with l-glutamic acid (Glu) and diamines 1,3-diaminopropane and 1,4-diaminobutane, putrescine (tn, Put), as well as adducts formed in the metal-free systems, have been investigated in aqueous solutions. The types of complexes formed and their overall stability constants were established on the basis of computer analysis of potentiometric results. The reaction centers and the modes of interaction were identified on the basis of spectroscopic studies (NMR, Vis and EPR). In the ligands studied the interaction centers are the oxygen atoms from carboxyl groups, nitrogen atom from the amine group of glutamic acid and the nitrogen atoms from amine groups of the diamines. The centers of noncovalent interaction in the adducts that formed in the metal-free systems are also potential sites of metal ion coordination, which is important in biological systems. In the Glu–diamine systems, molecular complexes of the (Glu)Hx(diamine) type are formed. In the (Glu)H2(tn) adduct, in contrast to the corresponding complex with Put, an inversion effect was observed in which the first deprotonated amine group of tn became a negative reaction center and interacted with the protonated amine groups from Glu. Depending on the pH, the amine groups from the diamine can be either a positive or a negative center of interaction. In the Cu(Glu)2 species the first molecule of Glu takes part in metallation through all functional groups, whereas the second molecule makes a “glycine-like” coordination with the Cu(II) ions that is only through two functional groups. According to the results, introduction of Cu(II) ions into metal-free systems (Glu–diamine) changes the character of interactions between the bioligands in the complexes that form in Cu(II)–Glu–diamine systems and no ML…L′ type complexes are formed. However, in the ternary systems only the heteroligand complexes Cu(Glu)(diamine) and Cu(Glu)(diamine)(OH) are observed.
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29
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In vitro leishmanicidal activity of pyrazole-containing polyamine macrocycles which inhibit the Fe-SOD enzyme of Leishmania infantum and Leishmania braziliensis species. Parasitology 2014; 141:1031-43. [DOI: 10.1017/s0031182014000201] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SUMMARYThe in vitro leishmanicidal activity and cytotoxicity of pyrazole-containing macrocyclic polyamines 1–4 was assayed on Leishmania infantum and Leishmania braziliensis species. Compounds 1–4 were more active and less toxic than glucantime and both infection rates and ultrastructural alterations confirmed that 1 and 2 were highly leishmanicidal and induced extensive parasite cell damage. Modifications in the excretion products of parasites treated with 1–3 were also consistent with substantial cytoplasm alterations. Compound 2 was highlighted as a potent inhibitor of Fe-SOD in both species, whereas its effect on human CuZn-SOD was poor. Molecular modelling suggested that 2 could deactivate Fe-SOD due to a sterically favoured enhanced ability to interact with the H-bonding net that supports the enzyme`s antioxidant features.
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30
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Belda R, Pitarch-Jarque J, Soriano C, Llinares JM, Blasco S, Ferrando-Soria J, García-España E. Intermolecular binding modes in a novel [1 + 1] condensation 1H-pyrazole azamacrocycle: a solution and solid state study with evidence for CO2 fixation. Inorg Chem 2013; 52:10795-803. [PMID: 24041115 DOI: 10.1021/ic400645t] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of a novel cyclophane (L1) consisting of a 1H-pyrazole moiety linked through methylene groups to a 1,5,9,13-tetraazadecane chain is described. As far as we know, this is one of the first reported syntheses of a [1 + 1] condensation 1H-pyrazole azamacrocyclic ligand. The crystal structures of the complexes [Cu2(H(H(-1)L1))(H(-1)L1)](ClO4)3·3.75H2O (1) and ([Cu2(H(H(-1)L1))(0.5)(H(-1)L1)(1.5)]2(ClO4)3Br2·4.2H2O (2) show that Cu(2+) coordination leads to formation of 2:2 Cu(2+):L dinuclear dimeric complexes in which the 1H-pyrazole units lose a proton behaving as bis(monodentate) bridging ligands. Unlike previously reported complexes of [2 + 2] pyrazole azamacrocycles, the pyrazolate units in 1 are pointing outward from the macrocyclic cavity to bind the Cu(2+) ions. Inner coordination with formation of 1:1 Cu(2+):L complexes is however observed in [1 + 1] pyridine azamacrocycles as shown by the crystal structure here presented of the complex [CuL2](ClO4)2 (3). Crystals of [Cu3(H(-1)L1)2(CO3)(H2O)](ClO4)2·8H2O (4) grown by evaporating aqueous solution at pH 9 containing Cu(2+) and L1 in 3:2 molar ratio show the presence of a further Cu(2+) coordinated to the two free amine groups found in structures 1 and 2. The metal ion fills its coordination sphere capturing atmospheric CO2 as a η(1),η(2)-bidentate carbonate anion placed in the equatorial position and an axial water molecule. pH-metric data, UV-vis spectroscopic data, EPR measurements, and HR-ESI-MS data support that the outer coordination mode with formation of 2:2 dinuclear dimeric and 3:2 trinuclear complexes is preserved in aqueous solution.
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Affiliation(s)
- Raquel Belda
- Instituto de Ciencia Molecular, Universidad de Valencia , C/Catedrático José Beltrán Martínez, no. 2, 46980 Paterna, Valencia, Spain
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31
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Altava B, Isabel Burguete M, Carbó N, Luis SV, Martí-Centelles V, Vicent C. Bis(amino amides) derived from natural amino acids as chiral receptors for N-protected dicarboxylic amino acids. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.10.099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Sánchez-Moreno M, Gómez-Contreras F, Navarro P, Marín C, Olmo F, Yunta MJR, Sanz AM, Rosales MJ, Cano C, Campayo L. Phthalazine derivatives containing imidazole rings behave as Fe-SOD inhibitors and show remarkable anti-T. cruzi activity in immunodeficient-mouse mode of infection. J Med Chem 2012; 55:9900-13. [PMID: 23043291 DOI: 10.1021/jm3011004] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of new phthalazine derivatives 1-4 containing imidazole rings were prepared. The monoalkylamino substituted derivatives 2 and 4 were more active in vitro against T. cruzi and less toxic against Vero cells than both their disubstituted analogues and the reference drug benznidazole. Compounds 2 and 4 highly inhibited the antioxidant parasite enzyme Fe-SOD, and molecular modeling suggested that they interact with the H-bonding system of the iron atom moiety. In vivo tests on the acute phase of Chagas disease gave parasitemia inhibition values twice those of benznidazole, and a remarkable decrease in the reactivation of parasitemia was found in the chronic phase for immunodeficient mice. Glucose metabolism studies showed that compounds 1-4 did not affect the succinate pathway but originated important changes in the excretion of pyruvate metabolites. The morphological alterations found in epimastigotes treated with 1-4 confirmed extensive cytoplasm damage and a high mortality rate of parasites.
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Affiliation(s)
- Manuel Sánchez-Moreno
- Departamento de Parasitología, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
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33
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Hayashi N, Jin S, Ujihara T. Removal of Acidic or Basic α-Amino Acids in Water by Poorly Water Soluble Scandium Complexes. J Org Chem 2012; 77:9652-8. [DOI: 10.1021/jo301739s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nobuyuki Hayashi
- National Food Research Institute, National Agriculture and Food Research Organization (NARO), 2-1-12
Kannondai, Tsukuba, Ibaraki 305-8642, Japan
| | - Shigeki Jin
- Faculty of Health
Science, Hokkaido University, Kita 12, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Tomomi Ujihara
- National Institute of Vegetable and Tea Science, National Agriculture and Food Research Organization (NARO), 2769 Kanaya, Shimada, Shizuoka 428-8501, Japan
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34
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Bernier N, Esteves CV, Delgado R. Heteroditopic receptor based on crown ether and cyclen units for the recognition of zwitterionic amino acids. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.110] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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35
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Sánchez-Moreno M, Marín C, Navarro P, Lamarque L, García-España E, Miranda C, Huertas O, Olmo F, Gómez-Contreras F, Pitarch J, Arrebola F. In Vitro and in Vivo Trypanosomicidal Activity of Pyrazole-Containing Macrocyclic and Macrobicyclic Polyamines: Their Action on Acute and Chronic Phases of Chagas Disease. J Med Chem 2012; 55:4231-43. [DOI: 10.1021/jm2017144] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Pilar Navarro
- Instituto de Química
Médica, Centro de Química Orgánica M. Lora-Tamayo, CSIC, E-28006 Madrid, Spain
| | - Laurent Lamarque
- Instituto de Química
Médica, Centro de Química Orgánica M. Lora-Tamayo, CSIC, E-28006 Madrid, Spain
| | - Enrique García-España
- Departamento de Química
Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, E-46980 Paterna (Valencia), Spain
| | - Carlos Miranda
- Instituto de Química
Médica, Centro de Química Orgánica M. Lora-Tamayo, CSIC, E-28006 Madrid, Spain
| | | | | | - Fernando Gómez-Contreras
- Departamento de Química
Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain
| | - Javier Pitarch
- Departamento de Química
Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, E-46980 Paterna (Valencia), Spain
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36
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Malinkin SO, Moroz YS, Penkova LV, Bon VV, Gumienna-Kontecka E, Pavlenko VA, Pekhnyo VI, Meyer F, Fritsky IO. Facile synthesis of Cu(II) complexes of mono- and bicondensed N donor Schiff base 1H-pyrazolate ligands: Crystal structures, spectroscopic and magnetic properties. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.02.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Luis SV, Alfonso I, Galindo F. Receptors for Zwitterionic Species. Supramol Chem 2012. [DOI: 10.1002/9780470661345.smc067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Reviriego F, Navarro P, Arán VJ, Jimeno ML, García-España E, Latorre J, Yunta MJR. Hydrogen-Bond-Mediated Self-Assembly of 26-Membered Diaza Tetraester Crowns of 3,5-Disubstituted 1H-Pyrazole. Dimerization Study in the Solid State and in CDCl3 Solution. J Org Chem 2011; 76:8223-31. [DOI: 10.1021/jo2012835] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Felipe Reviriego
- Instituto de Química Médica and Centro de Química Orgánica Lora-Tamayo CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Pilar Navarro
- Instituto de Química Médica and Centro de Química Orgánica Lora-Tamayo CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Vicente J. Arán
- Instituto de Química Médica and Centro de Química Orgánica Lora-Tamayo CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Maria Luisa Jimeno
- Instituto de Química Médica and Centro de Química Orgánica Lora-Tamayo CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Enrique García-España
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Edificio de Institutos de Paterna, Profesor José Beltrán 2, 46980 Paterna (Valencia), Spain
| | - Julio Latorre
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Edificio de Institutos de Paterna, Profesor José Beltrán 2, 46980 Paterna (Valencia), Spain
| | - Maria J. R. Yunta
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, Avda Complutense s/n, 28040 Madrid, Spain
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39
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Mateus P, Delgado R, Brandão P, Félix V. Recognition of Oxalate by a Copper(II) Polyaza Macrobicyclic Complex. Chemistry 2011; 17:7020-31. [DOI: 10.1002/chem.201100428] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Indexed: 11/10/2022]
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40
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Ambrosi G, Formica M, Fusi V, Giorgi L, Macedi E, Micheloni M, Paoli P, Pontellini R, Rossi P. A Macrocyclic Ligand as Receptor and ZnII-Complex Receptor for Anions in Water: Binding Properties and Crystal Structures. Chemistry 2011; 17:1670-82. [PMID: 21268170 DOI: 10.1002/chem.201001989] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Indexed: 11/11/2022]
Affiliation(s)
- Gianluca Ambrosi
- Institute of Chemical Sciences, University of Urbino, Piazza Rinascimento 6, 61029 Urbino, Italy
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41
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Singh UP, Kashyap S, Singh HJ, Butcher RJ. Anion directed supramolecular architecture of pyrazole based ionic salts. CrystEngComm 2011. [DOI: 10.1039/c0ce00820f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Börner J, dos Santos Vieira I, Flörke U, Döring A, Kuckling D, Herres-Pawlis S. Zinc Complexes with Mono- and Polydentate Behaving Guanidine Ligands and Their Application in Lactide Polymerization. ACS SYMPOSIUM SERIES 2011. [DOI: 10.1021/bk-2011-1063.ch011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- Janna Börner
- Department of Chemistry, Inorganic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
- Department of Chemistry, Inorganic Chemistry II, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
- Department of Chemistry, Organic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
| | - Ines dos Santos Vieira
- Department of Chemistry, Inorganic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
- Department of Chemistry, Inorganic Chemistry II, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
- Department of Chemistry, Organic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
| | - Ulrich Flörke
- Department of Chemistry, Inorganic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
- Department of Chemistry, Inorganic Chemistry II, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
- Department of Chemistry, Organic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
| | - Artjom Döring
- Department of Chemistry, Inorganic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
- Department of Chemistry, Inorganic Chemistry II, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
- Department of Chemistry, Organic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
| | - Dirk Kuckling
- Department of Chemistry, Inorganic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
- Department of Chemistry, Inorganic Chemistry II, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
- Department of Chemistry, Organic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
| | - Sonja Herres-Pawlis
- Department of Chemistry, Inorganic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
- Department of Chemistry, Inorganic Chemistry II, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
- Department of Chemistry, Organic Chemistry, Universität Paderborn Warburger Str. 100, 33098 Paderborn, Germany
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43
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Galisteo J, Navarro P, Campayo L, Yunta MJR, Gómez-Contreras F, Villa-Pulgarin JA, Sierra BG, Mollinedo F, Gonzalez J, Garcia-España E. Synthesis and cytotoxic activity of a new potential DNA bisintercalator: 1,4-Bis{3-[N-(4-chlorobenzo[g]phthalazin-1-yl)aminopropyl]}piperazine. Bioorg Med Chem 2010; 18:5301-9. [PMID: 20538470 DOI: 10.1016/j.bmc.2010.05.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Revised: 05/14/2010] [Accepted: 05/18/2010] [Indexed: 11/25/2022]
Abstract
The synthesis of new 1,4-bisalkylamino (2-4) and 1-alkylamino-4-chloro (5-6) substituted benzo[g]phthalazines is reported. Compounds 2-4 and 6 were prepared both in the free and heteroaromatic ring protonated forms. Bifunctional 6 contains the 1,4-bisaminopropylpiperazine chain as a linker between the two heteroaromatic units, whereas 5 is its monofunctional analogue. The in vitro antitumour activity of the synthesized compounds has been tested against human colon, breast and lung carcinoma cells, and also against human glioblastoma cells. Results obtained show that all of them are active in all cases, but bifunctional 6.2HCl is remarkably effective against the four cell lines tested, exhibiting IC50 values in the range of 10(-7) M, similar to those found for doxorubicin. The bifunctional structure of 6.2HCl enhances activity with respect to the monofunctional related compounds 5 and 7, leading to the highest activity among all the compounds tested. Molecular modelling of 6 suggests that those results could be indicative of DNA bisintercalation, which should be specially favoured in the diprotonated form 6.2HCl, a compound suitable for being studied more in depth in further biological tests. Measure of the DNA thermal melting curves show that the linear rise in Tm for bifunctional 6.2HCl is nearly twice than that one obtained for monofunctional 5, and supports the DNA-binding hypothesis.
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Affiliation(s)
- Juan Galisteo
- Instituto de Química Médica, Centro de Química Orgánica Manuel Lora-Tamayo, CSIC, c/Juan de la Cierva 3, E-28006 Madrid, Spain
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44
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Cho NS, Hwang HJ, Suh IH, Kang SK. Synthesis and Crystal Structures of Macrocycles Containing 2-Imino-5-mercapto-3H-1,3,4-thiadiazolines. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.5.1393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Urban C, Schmuck C. Active Transport of Amino Acids by a Guanidiniocarbonyl-Pyrrole Receptor. Chemistry 2010; 16:9502-10. [DOI: 10.1002/chem.201000509] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Formica M, Fusi V, Giorgi L, Macedi E, Piersanti G, Varrese MA, Zappia G. Synthesis, binding and fluorescence studies of a new neutral H-bonding receptor for anions based on 3,5-bis(trifluoromethyl)phenylurea. Supramol Chem 2010. [DOI: 10.1080/10610271003731146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mauro Formica
- a Institute of Chemical Sciences, University of Urbino , Piazza Rinascimento 6, I-61029, Urbino, Italy
| | - Vieri Fusi
- a Institute of Chemical Sciences, University of Urbino , Piazza Rinascimento 6, I-61029, Urbino, Italy
| | - Luca Giorgi
- a Institute of Chemical Sciences, University of Urbino , Piazza Rinascimento 6, I-61029, Urbino, Italy
| | - Eleonora Macedi
- a Institute of Chemical Sciences, University of Urbino , Piazza Rinascimento 6, I-61029, Urbino, Italy
| | - Giovanni Piersanti
- b Institute of Pharmaceutical Chemistry, University of Urbino , Piazza Rinascimento 6, I-61029, Urbino, Italy
| | - Maria Antonietta Varrese
- b Institute of Pharmaceutical Chemistry, University of Urbino , Piazza Rinascimento 6, I-61029, Urbino, Italy
| | - Giovanni Zappia
- b Institute of Pharmaceutical Chemistry, University of Urbino , Piazza Rinascimento 6, I-61029, Urbino, Italy
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47
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Chiral bis(amino amides) as chiral solvating agents for enantiomeric excess determination of α-hydroxy and arylpropionic acids. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.05.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Pitarch J, Clares MP, Belda R, Costa RD, Navarro P, Ortí E, Soriano C, García-España E. Zn(ii)-coordination and fluorescence studies of a new polyazamacrocycle incorporating 1H-pyrazole and naphthalene units. Dalton Trans 2010; 39:7741-6. [DOI: 10.1039/c0dt00204f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Kwong HL, Wong WL, Lee CS, Yeung CT, Teng PF. Zinc(II) complex of terpyridine-crown macrocycle: A new motif in fluorescence sensing of zwitterionic amino acids. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.06.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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50
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Ambrosi G, Formica M, Fusi V, Giorgi L, Guerri A, Macedi E, Micheloni M, Paoli P, Pontellini R, Rossi P. Phosphates Sensing: Two Polyamino-Phenolic Zinc Receptors Able to Discriminate and Signal Phosphates in Water. Inorg Chem 2009; 48:5901-12. [DOI: 10.1021/ic900231h] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gianluca Ambrosi
- Institute of Chemical Sciences, University of Urbino, P.za Rinascimento 6, I-61029 Urbino, Italy
| | - Mauro Formica
- Institute of Chemical Sciences, University of Urbino, P.za Rinascimento 6, I-61029 Urbino, Italy
| | - Vieri Fusi
- Institute of Chemical Sciences, University of Urbino, P.za Rinascimento 6, I-61029 Urbino, Italy
| | - Luca Giorgi
- Institute of Chemical Sciences, University of Urbino, P.za Rinascimento 6, I-61029 Urbino, Italy
| | - Annalisa Guerri
- Polo Scientifico, Via della Lastruccia 5, I-50019 Sesto Fiorentino (FI), Italy
| | - Eleonora Macedi
- Institute of Chemical Sciences, University of Urbino, P.za Rinascimento 6, I-61029 Urbino, Italy
| | - Mauro Micheloni
- Institute of Chemical Sciences, University of Urbino, P.za Rinascimento 6, I-61029 Urbino, Italy
| | - Paola Paoli
- Department of Energy Engineering “Sergio Stecco”, University of Florence, Via S. Marta 3, I-50139 Florence, Italy
| | - Roberto Pontellini
- Institute of Chemical Sciences, University of Urbino, P.za Rinascimento 6, I-61029 Urbino, Italy
| | - Patrizia Rossi
- Department of Energy Engineering “Sergio Stecco”, University of Florence, Via S. Marta 3, I-50139 Florence, Italy
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