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Santa Maria de la Parra L, Romo AIB, Rodríguez-López J, Nascimento OR, Echeverría GA, Piro OE, León IE. Promising Dual Anticancer and Antimetastatic Action by a Cu(II) Complex Derived from Acylhydrazone on Human Osteosarcoma Models. Inorg Chem 2024; 63:4925-4938. [PMID: 38442008 DOI: 10.1021/acs.inorgchem.3c04085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Osteosarcoma cancers are becoming more common in children and young adults, and existing treatments have low efficacy and a very high mortality rate, making it pressing to search for new chemotherapies with high efficacy and high selectivity index. Copper complexes have shown promise in the treatment of osteosarcoma. Here, we report the synthesis, characterization, and anticancer activity of [Cu(N-N-Fur)(NO3)(H2O)] complex where N-N-Fur is (E)-N'-(2-hydroxy-3-methoxybenzylidene)furan-2-carbohydrazide. The [Cu(N-N-Fur)(NO3)(H2O)] complex was characterized via X-ray diffraction and electron spin resonance (ESR), displaying a copper center in a nearly squared pyramid environment with the nitrate ligand acting as a fifth ligand in the coordination sphere. We observed that [Cu(N-N-Fur)(NO3)(H2O)] binds to DNA in an intercalative manner. Anticancer activity on the MG-63 cell line was evaluated in osteosarcoma monolayer (IC50 2D: 1.1 ± 0.1 μM) and spheroids (IC50 3D: 16.3 ± 3.1 μM). Selectivity assays using nontumoral fibroblast (L929 cell line) showed that [Cu(N-N-Fur)(NO3)(H2O)] has selectivity index value of 2.3 compared to cis-diamminedichloroplatinum(II) (CDDP) (SI = 0.3). Additionally, flow cytometry studies demonstrated that [Cu(N-N-Fur)(NO3)(H2O)] inhibits cell proliferation and conveys cells to apoptosis. Cell viability studies of MG-63 spheroids (IC50 = 16.3 ± 3.1 μM) showed that its IC50 value is 4 times lower than for CDDP (IC50 = 65 ± 6 μM). Besides, we found that cell death events mainly occurred in the center region of the spheroids, indicating efficient transport to the microtumor. Lastly, the complex showed dose-dependent reductions in spheroid cell migration from 7.5 to 20 μM, indicating both anticancer and antimetastatic effects.
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Affiliation(s)
- Lucía Santa Maria de la Parra
- CEQUINOR (UNLP, CCT-CONICET La Plata, asociado a CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 N° 1465, 1900 La Plata, Argentina
| | - Adolfo I B Romo
- Department of Chemistry and Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Champaign 61801, Illinois, United States
| | - Joaquín Rodríguez-López
- Department of Chemistry and Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Champaign 61801, Illinois, United States
| | - Otaciro R Nascimento
- Departamento de Física Interdiciplinar, Instituto de Física de São Carlos, Universidade de São Paulo, CP 369 , CEP 13560-970 São Carlos, SP, Brazil
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Instituto IFLP (CONICET, CCT-La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Instituto IFLP (CONICET, CCT-La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Ignacio E León
- CEQUINOR (UNLP, CCT-CONICET La Plata, asociado a CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 N° 1465, 1900 La Plata, Argentina
- Cátedra de Fisiopatología, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata. 47 y 115, La Plata 1900, Argentina
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Aguilar-Llanos E, Carrera-Pacheco SE, González-Pastor R, Zúñiga-Miranda J, Rodríguez-Pólit C, Mayorga-Ramos A, Carrillo-Naranjo O, Guamán LP, Romero-Benavides JC, Cevallos-Morillo C, Echeverría GA, Piro OE, Alcívar-León CD, Heredia-Moya J. Crystal Structure, Hirshfeld Surface Analysis, and Biological Activities of Schiff-Base Derivatives of 4-Aminoantipyrine. ACS Omega 2023; 8:42632-42646. [PMID: 38024734 PMCID: PMC10652364 DOI: 10.1021/acsomega.3c05372] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/26/2023] [Indexed: 12/01/2023]
Abstract
Eight Schiff bases, synthesized by the reaction of 4-aminoantipyrine with different cinnamaldehydes, were studied in the solid state by using vibrational spectroscopy (IR) and X-ray diffraction techniques. The analysis was extended to the solution phase through ultraviolet-vis, fluorescence spectroscopy, and cyclic voltammetry. Finally, the crystal structures of four compounds (3b, 3d, 3g, and 3h) were determined and studied. In addition to the experimental study, theoretical calculations using the semiempirical method PM6/ZDO were performed to understand better the compound's molecular properties, UV-vis, and infrared spectra. The primary difference is the angular conformation of the terminal phenyl rings around the corresponding linking C-N and C-C σ-bonds. Furthermore, as a result of extended bonding, the > C=N- azomethine group-containing Cpyr-N=(CH)-(CR)=(CH)-Cbz chain (with R=H for 3b, 3d, and 3h, and R=CH3 for 3g) is planar, nearly coplanar, with the mean plane of the pyrazole ring. Hirshfeld surface (HS) analysis was used to investigate the crystal packing and intermolecular interactions, which revealed that intermolecular C-H···O and C-H···N hydrogen bonds, π···π stacking, and C-H···π and C=O···π interactions stabilize the compounds. The energy contributions to the lattice energies of potential hydrogen bonds were primarily dispersive and repulsive. All derivatives were tested in vitro on LPS-stimulated mouse macrophages to assess their ability to suppress the LPS-induced inflammatory responses. Only a slight reduction in the level of NO production was found in activated macrophages treated with 3h. Additionally, the derivatives were tested for antimicrobial activity against several clinical bacteria and fungi strains, including three biofilm-forming microorganisms. Nevertheless, only Schiff base 3f showed interesting antibacterial activities with minimum inhibitory concentration (MIC) values as low as 15.6 μM against Enterobacter gergoviae. On the other hand, Schiff base 3f and, to a lesser extent, 3b and 3h showed antifungal activity against clinical isolates of Candida. The lowest MIC value was for 3f against Candida albicans (15.6 μM). It is interesting to note that the same Schiff bases exhibit the highest activity in both biological evaluations.
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Affiliation(s)
- Esteban Aguilar-Llanos
- Facultad
de Ciencias Químicas, Universidad
Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador
| | - Saskya E. Carrera-Pacheco
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Rebeca González-Pastor
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Johana Zúñiga-Miranda
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Cristina Rodríguez-Pólit
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Arianna Mayorga-Ramos
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Oscar Carrillo-Naranjo
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Linda P. Guamán
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Juan Carlos Romero-Benavides
- Departamento
de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador
| | - Carlos Cevallos-Morillo
- Facultad
de Ciencias Químicas, Universidad
Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador
| | - Gustavo A. Echeverría
- Departamento
de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La
Plata), C. C. 67, La Plata 1900, Argentina
| | - Oscar E. Piro
- Departamento
de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La
Plata), C. C. 67, La Plata 1900, Argentina
| | - Christian D. Alcívar-León
- Facultad
de Ciencias Químicas, Universidad
Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador
| | - Jorge Heredia-Moya
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
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Soba M, Scalese G, Casuriaga F, Pérez N, Veiga N, Echeverría GA, Piro OE, Faccio R, Pérez-Díaz L, Gasser G, Machado I, Gambino D. Multifunctional organometallic compounds for the treatment of Chagas disease: Re(I) tricarbonyl compounds with two different bioactive ligands. Dalton Trans 2023; 52:1623-1641. [PMID: 36648116 DOI: 10.1039/d2dt03869b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Chagas' disease (American Trypanosomiasis) is an ancient and endemic illness in Latin America caused by the protozoan parasite Trypanosoma cruzi. Although there is an urgent need for more efficient and less toxic chemotherapeutics, no new drugs to treat this disease have entered the clinic in the last decades. Searching for metal-based prospective antichagasic drugs, in this work, multifunctional Re(I) tricarbonyl compounds bearing two different bioactive ligands were designed: a polypyridyl NN derivative of 1,10-phenanthroline and a monodentate azole (Clotrimazole CTZ or Ketoconazol KTZ). Five fac-[Re(CO)3(NN)(CTZ)](PF6) compounds and a fac-[Re(CO)3(NN)(KTZ)](PF6) were synthesized and fully characterized. They showed activity against epimastigotes (IC50 3.48-9.42 μM) and trypomastigotes of T. cruzi (IC50 0.61-2.79 μM) and moderate to good selectivity towards the parasite compared to the VERO mammalian cell model. In order to unravel the mechanism of action of our compounds, two potential targets were experimentally and theoretically studied, namely DNA and one of the enzymes involved in the parasite ergosterol biosynthetic pathway, CYP51 (lanosterol 14-α-demethylase). As hypothesized, the multifunctional compounds shared in vitro a similar mode of action as that disclosed for the single bioactive moieties included in the new chemical entities. Additionally, two relevant physicochemical properties of biological interest in prospective drug development, namely lipophilicity and stability in solution in different media, were determined. The whole set of results demonstrates the potentiality of these Re(I) tricarbonyls as promising candidates for further antitrypanosomal drug development.
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Affiliation(s)
- Mariano Soba
- Área Química Inorgánica, DEC, Facultad de Química, Universidad de la República, Uruguay. .,Programa de Posgrado en Química, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Gonzalo Scalese
- Área Química Inorgánica, DEC, Facultad de Química, Universidad de la República, Uruguay.
| | - Federico Casuriaga
- Área Química Inorgánica, DEC, Facultad de Química, Universidad de la República, Uruguay.
| | - Nicolás Pérez
- Área Química Inorgánica, DEC, Facultad de Química, Universidad de la República, Uruguay.
| | - Nicolás Veiga
- Área Química Inorgánica, DEC, Facultad de Química, Universidad de la República, Uruguay.
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Ricardo Faccio
- Área Física, DETEMA, Facultad de Química, Universidad de la República, Uruguay
| | - Leticia Pérez-Díaz
- Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, France
| | - Ignacio Machado
- Área Química Analítica, DEC, Facultad de Química, Universidad de la República, Uruguay.
| | - Dinorah Gambino
- Área Química Inorgánica, DEC, Facultad de Química, Universidad de la República, Uruguay.
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Espitia Cogollo E, Echeverría GA, Piro OE, Jios JL, Ulic SE. Perhalomethyl Chromones: Spectroscopic, X‐Ray Diffraction, Hirshfeld Surface, and Density Functional Theory Studies of the Noncovalent Interactions. Crystal Research and Technology 2022. [DOI: 10.1002/crat.202200085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Edeimis Espitia Cogollo
- CEQUINOR (CONICET‐UNLP) Facultad de Ciencias Exactas Universidad Nacional de La Plata Bv. 120 N° 1465 La Plata 1900 Argentina
| | - Gustavo A. Echeverría
- Departamento de Física Facultad de Ciencias Exactas Universidad Nacional de La Plata e IFLP (CONICET, CCT‐La Plata) C. C. 67 La Plata 1900 Argentina
| | - Oscar E. Piro
- Departamento de Física Facultad de Ciencias Exactas Universidad Nacional de La Plata e IFLP (CONICET, CCT‐La Plata) C. C. 67 La Plata 1900 Argentina
| | - Jorge L. Jios
- Laboratorio UPL (UNLP‐CIC) Campus Tecnológico Gonnet (CIC‐BA) Cno. Centenario e/505 y 508 Gonnet (1897) Argentina
- Departamento de Química Facultad de Ciencias Exactas Universidad Nacional de La Plata 47 esq. 115 La Plata (1900) Argentina
| | - Sonia E. Ulic
- CEQUINOR (CONICET‐UNLP) Facultad de Ciencias Exactas Universidad Nacional de La Plata Bv. 120 N° 1465 La Plata 1900 Argentina
- Departamento de Ciencias Básicas Universidad Nacional de Luján Rutas 5 y 7 Luján Buenos Aires 6700 Argentina
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Narváez-Ordoñez EG, Pabón-Carcelén KA, Zurita-Saltos DA, Bonilla-Valladares PM, Yánez-Darquea TG, Ramos-Guerrero LA, Ulic SE, Jios JL, Echeverría GA, Piro OE, Langer P, Alcívar-León CD, Heredia-Moya J. Synthesis, Experimental and Theoretical Study of Azidochromones. Molecules 2022; 27:molecules27092636. [PMID: 35565987 PMCID: PMC9105743 DOI: 10.3390/molecules27092636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/10/2022] [Accepted: 02/16/2022] [Indexed: 11/16/2022]
Abstract
A series of 2-(haloalkyl)-3-azidomethyl and 6-azido chromones has been synthetized, characterized and studied by theoretical (DFT calculations) and spectroscopic methods (UV-Vis, NMR). The crystal structure of 3-azidomethyl-2-difluoromethyl chromone, determined by X-ray diffraction methods, shows a planar framework due to extended π-bond delocalization. Its molecular packing is stabilized by F···H, N···H and O···H hydrogen bonds, π···π stacking and C–O···π intermolecular interactions. Moreover, AIM, NCI and Hirshfeld analysis evidenced that azido moiety has a significant role in the stabilization of crystal packing through weak intermolecular interactions, where analysis of electronic density suggested closed-shell (CS) interatomic interactions.
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Affiliation(s)
- Ena G. Narváez-Ordoñez
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador; (E.G.N.-O.); (K.A.P.-C.); (D.A.Z.-S.); (P.M.B.-V.); (T.G.Y.-D.)
| | - Kevin A. Pabón-Carcelén
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador; (E.G.N.-O.); (K.A.P.-C.); (D.A.Z.-S.); (P.M.B.-V.); (T.G.Y.-D.)
| | - Daniel A. Zurita-Saltos
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador; (E.G.N.-O.); (K.A.P.-C.); (D.A.Z.-S.); (P.M.B.-V.); (T.G.Y.-D.)
| | - Pablo M. Bonilla-Valladares
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador; (E.G.N.-O.); (K.A.P.-C.); (D.A.Z.-S.); (P.M.B.-V.); (T.G.Y.-D.)
| | - Trosky G. Yánez-Darquea
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador; (E.G.N.-O.); (K.A.P.-C.); (D.A.Z.-S.); (P.M.B.-V.); (T.G.Y.-D.)
| | | | - Sonia E. Ulic
- CEQUINOR (CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 No 1465, La Plata 1900, Buenos Aires, Argentina;
- Departamento de Ciencias Básicas, Facultad de Ciencias Exactas, Universidad Nacional de Luján, Rutas 5 y 7, Luján 6700, Buenos Aires, Argentina
| | - Jorge L. Jios
- Laboratorio UPL (UNLP-CIC), Camino Centenario e/505 y 508 (1897) M.B. Gonnet and Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, República Argentina. 47 esq. 115, La Plata 1900, Buenos Aires, Argentina;
| | - Gustavo A. Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), La Plata 1900, Buenos Aires, Argentina; (G.A.E.); (O.E.P.)
| | - Oscar E. Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), La Plata 1900, Buenos Aires, Argentina; (G.A.E.); (O.E.P.)
| | - Peter Langer
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany;
- Leibniz Institut für Katalyse, Universität Rostock e. V. (LIKAT), Albert-Einstein-Str. 29a, 18059 Rostock, Germany
| | - Christian D. Alcívar-León
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador; (E.G.N.-O.); (K.A.P.-C.); (D.A.Z.-S.); (P.M.B.-V.); (T.G.Y.-D.)
- Correspondence: (C.D.A.-L.); (J.H.-M.)
| | - Jorge Heredia-Moya
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
- Correspondence: (C.D.A.-L.); (J.H.-M.)
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Caro-Ramirez JY, Parente JE, Gaddi GM, Martini N, Franca CA, Urquiza NM, Lezama L, Piro OE, Echeverría GA, Williams PA, Ferrer EG. The biocatalytic activity of the “lantern-like” binuclear copper complex with trisulfide bridges mimicking SOD metallo-proteins. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Burgos-López Y, Balsa LM, Piro OE, León IE, García-Tojal J, Echeverría GA, González-Baró AC, Parajón-Costa BS. Tridentate acylhydrazone copper(II) complexes with heterocyclic bases as coligands. Synthesis, spectroscopic studies, crystal structure and cytotoxicity assays. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Le Pors MS, Barri IA, Riafrecha LE, Echeverría GA, Piro OE, Colinas PA. Green Biphasic Synthesis, X‐Ray Diffraction Structure and Conformational Analysis of
O
‐Glycosylmethyl Isoxazoles: Potential Substrates of GLUT‐1 Glucose Transporter. ChemistrySelect 2022. [DOI: 10.1002/slct.202104379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Macarena S. Le Pors
- CEDECOR (UNLP-CICBA) CONICET Departamento de Química Facultad de Ciencias Exactas Universidad Nacional de La Plata, 47 y 115, 1900 La Plata Argentina
| | - Ivan A. Barri
- CEDECOR (UNLP-CICBA) CONICET Departamento de Química Facultad de Ciencias Exactas Universidad Nacional de La Plata, 47 y 115, 1900 La Plata Argentina
| | - Leonardo E. Riafrecha
- CEDECOR (UNLP-CICBA) CONICET Departamento de Química Facultad de Ciencias Exactas Universidad Nacional de La Plata, 47 y 115, 1900 La Plata Argentina
| | - Gustavo A. Echeverría
- Departamento de Física Facultad de Ciencias Exactas Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT−La Plata) C. C. 67 1900 La Plata Argentina
| | - Oscar E. Piro
- Departamento de Física Facultad de Ciencias Exactas Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT−La Plata) C. C. 67 1900 La Plata Argentina
| | - Pedro A. Colinas
- CEDECOR (UNLP-CICBA) CONICET Departamento de Química Facultad de Ciencias Exactas Universidad Nacional de La Plata, 47 y 115, 1900 La Plata Argentina
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Galvez CE, Piro OE, Echeverría GA, Robles NL, Lezama JOG, Sankaran SV, Thamotharan S, Villecco MB, Loandos MDH, Gil DM. Experimental and theoretical insights into the formation of weak hydrogen bonds and H⋯H bonding interactions in the solid-state structure of two eucalyptol derivatives. NEW J CHEM 2022. [DOI: 10.1039/d2nj00428c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis and X-ray solid-state structure of two eucalyptol derivatives. Both compounds form self-assembled dimers establishing C–H⋯O hydrogen bonds and H⋯H bonding interactions.
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Affiliation(s)
- Carolina E. Galvez
- Cátedra de Química Orgánica II, Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Oscar E. Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - Gustavo A. Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - Norma Lis Robles
- INQUINOA (CONICET – UNT), Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán. Av. Independencia 1800, CP 4000, San Miguel de Tucumán, Argentina
| | - José O. G. Lezama
- INBIOFAL (CONICET – UNT), Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Sankaran Venkatachalam Sankaran
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
| | - Margarita B. Villecco
- Cátedra de Química Orgánica II, Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - María del H. Loandos
- Cátedra de Química Orgánica II, Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Diego M. Gil
- INBIOFAL (CONICET – UNT), Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
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Ilyas S, Saeed A, Abbas Q, Ujan R, Channar PA, Shaikh IA, Hassan M, Raza H, Seo SY, Echeverría GA, Piro OE, Erben MF. Preparation, structure determination, and in silico and in vitro Elastase inhibitory properties of substituted N-([1,1′-Biphenyl]-2-ylcarbamothioyl)- Aryl/Alkyl benzamide Derivatives. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Pérez H, Di Santo A, Piro OE, Echeverría GA, González M, Ben Altabef A, Gomila RM, Frontera A, Gil DM. Novel 'main-part' isostructuralism in metal complexes with 1-methylimidazole: crystal structures, energy calculations and magnetic properties. Dalton Trans 2021; 50:17029-17040. [PMID: 34761774 DOI: 10.1039/d1dt03159g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new transition metal complexes with 1-methylimidazole (1-MeIm) and azide as ligands, namely, [Co(1-MeIm)4(N3)2] (1) and [Ni(1-MeIm)4(N3)2] (2), have been synthesized and characterized by IR, Raman, UV-Vis and XPS spectroscopy. Their crystal structures were solved by single-crystal X-ray diffraction. The supramolecular self-assembly of the two complexes is governed by non-classical C-H⋯N hydrogen bonds and C-H⋯π interactions. Lattice energies and intermolecular interaction energies for various molecular pairs are quantified using the PIXEL method. DFT computational studies to assess the binding energy through modern tools like non-covalent interaction (NCI plots) analysis and reduced density gradient (RDG) analysis have also been carried out. A detailed analysis of geometric descriptors revealed the existence of quasi-isostructural pairs or 'main-part' isostructuralism in a series formed by 1, 2, and a related cadmium complex, being more evident in the 1/2 pair. DFT studies using theoretical models have been used to disclose the relative importance of the H-bond and C-H⋯π noncovalent interactions. Magnetic measurements for compound 1 show weak ferrimagnetic coupling between adjacent M(II) centers, mediated by H-bonding and C-H⋯π non-covalent interactions.
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Affiliation(s)
- Hiram Pérez
- Departamento de Química General e Inorgánica, Facultad de Química, Universidad de La Habana, CP 10400, La Habana, Cuba.
| | - Alejandro Di Santo
- INQUINOA (CONICET - UNT), Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN, San Miguel de Tucumán, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP institute (CONICET, CCT-La Plata), C.C. 67, 1900, La Plata, Argentina.
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP institute (CONICET, CCT-La Plata), C.C. 67, 1900, La Plata, Argentina.
| | - Marlene González
- CONACyT-Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, U. Legaria, Ciudad de México, Mexico
| | - Aida Ben Altabef
- INQUINOA (CONICET - UNT), Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN, San Miguel de Tucumán, Argentina
| | - Rosa M Gomila
- Departament de Química, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| | - Diego M Gil
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP institute (CONICET, CCT-La Plata), C.C. 67, 1900, La Plata, Argentina. .,INBIOFAL (CONICET - UNT), Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
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12
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Rojas AH, Lafuente L, Echeverría GA, Piro OE, Vetere V, Ponzinibbio A. Structure investigation on a novel 2-halo-2,3-unsaturated-N-galactoside, NMR and X-ray diffraction of a monoclinic multidomain crystal. Carbohydr Res 2021; 510:108457. [PMID: 34638084 DOI: 10.1016/j.carres.2021.108457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/04/2021] [Accepted: 10/05/2021] [Indexed: 10/20/2022]
Abstract
Single crystal X-ray and NMR investigations on multidomain structured N-(4,6-di-O-acetyl-2,3-dideoxy-α-D-threo-hex-2-en-2-iodo-pyranosyl)-methylsulfonamide are reported. This is the first crystallographic diffraction data report related to a 2-halo-2,3-unsaturated galactoside derivative. A complete structural study, including conformations and crystal packing, was performed by analyzing the spectroscopic data in solid state (XRD) and in solution (NMR).
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Affiliation(s)
- A H Rojas
- Centro de Estudio de Compuestos Orgánicos, CEDECOR (CIC, UNLP), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - L Lafuente
- Centro de Estudio de Compuestos Orgánicos, CEDECOR (CIC, UNLP), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - G A Echeverría
- Instituto de Física La Plata, IFLP (CONICET, UNLP), Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CC 67, 1900, La Plata, Argentina
| | - O E Piro
- Instituto de Física La Plata, IFLP (CONICET, UNLP), Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CC 67, 1900, La Plata, Argentina
| | - V Vetere
- Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco", CINDECA (CONICET, UNLP), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calle 47 Nº 257, 1900, La Plata, Argentina.
| | - A Ponzinibbio
- Centro de Estudio de Compuestos Orgánicos, CEDECOR (CIC, UNLP), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina.
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13
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Romero AH, Romero IE, Piro OE, Echeverría GA, Gotopo LA, Moller MN, Rodríguez GA, Cabrera GJ, Castro ER, López SE, Cerecetto HE. Photo-Induced Partially Aromatized Intramolecular Charge Transfer. J Phys Chem B 2021; 125:9268-9285. [PMID: 34357778 DOI: 10.1021/acs.jpcb.1c03747] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Diverse models of intramolecular charge transfer (ICT) have been proposed for interpreting the origin of the charge-transfer (CT) state in donor-acceptor (D-A) dyes. However, a large variety of fused-heterocyclic dyes containing a pseudo-aromatic ring in the rigid structure have shown to be incompatible with them. To approximate a solution within the ICT concept, we reported a novel ICT model called partially aromatized intramolecular charge transfer (PAICT). PAICT involves the generation of a CT state from an ICT that occurred within a pre-excited D-A fused-heterocyclic structure possessing a pseudo-aromatic or unstable aromatic ring as the acceptor moiety. The model was proposed from the multiple-emissive mesomeric D-A N1-aryl-2-(trifluoromethyl)benzo[b][1,8]naphthyridin-4(1H)-one, whose excited mesomeric states, which are defined by the aromatic and pseudo-aromatic forms of the pyrindin-4(1H)-one ring, led to a common partial aromatized CT state upon excitation via PAICT. The latter was supported through theoretical calculations on the excited mesomeric states, one-dimensional (1D) and two-dimensional (2D) excitation-emission measurements in different solvents, and the detection of three excited states by lifetime measurements upon 370 nm excitation. The existence of mesomerism was supposed from: (i) two overlapping bands at 370-390 (or 400-420 nm) in UV-vis spectra, (ii) the direct interaction between the pyridinic nitrogen of one molecule and the carbonylic oxygen of the other found in the solid state and, (iii) the detection of three excited states by lifetime measurements. The PAICT opens new perspectives for interpreting the charge-transfer phenomenon in fused-heterocyclic dyes, in particular, those containing a pseudo-aromatic or unstable aromatic ring as an acceptor moiety.
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Affiliation(s)
- Angel H Romero
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Ivan E Romero
- Laboratorio de Síntesis Orgánica, Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Los Chaguaramos, Caracas 1040, Venezuela
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, La Plata 1900, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, La Plata 1900, Argentina
| | - Lourdes A Gotopo
- Laboratorio de Síntesis Orgánica, Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Los Chaguaramos, Caracas 1040, Venezuela
| | - Matías N Moller
- Laboratorio de Fisicoquímica Biológica, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Gonzalo A Rodríguez
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Gustavo J Cabrera
- Laboratorio de Síntesis Orgánica, Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Los Chaguaramos, Caracas 1040, Venezuela
| | - Erick R Castro
- Instituto de Física da UFRGS, Av. Bento Gonçalves, Porto Alegre 9500, RS, Brazil
| | - Simón E López
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Hugo E Cerecetto
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.,Área de Radiofarmacia, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, Montevideo 11400, Uruguay
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Narváez O EG, Bonilla V. PM, Zurita DA, Alcívar L. CD, Heredia-Moya J, Ulic SE, Jios JL, Piro OE, Echeverría GA, Langer P. Synthesis, experimental and theoretical study of novel 2-haloalkyl (-CF2H, -CCl2H, -CF2CF3)-, 3-bromo and bromomethyl substituted chromones. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2020.109717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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15
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Rocha M, Echeverría GA, Piro OE, Jios JL, Ulic SE, Gil DM. Role of fluorine-fluorine and weak intermolecular interactions in the supramolecular network of a new trifluoromethyl-1,5-benzodiazepine: Crystal structure, Hirshfeld surface analysis and theoretical study. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2020.109697] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Galvez CE, Rocha M, Villecco MB, Echeverría GA, Piro OE, Loandos MDH, Gil DM. Role of hydrogen bonds and weak non-covalent interactions in the supramolecular assembly of 9-hydroxyeucaliptol: crystal structure, Hirshfeld surface analysis, and DFT calculations. J Mol Model 2021; 27:13. [PMID: 33403477 DOI: 10.1007/s00894-020-04633-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/01/2020] [Indexed: 11/29/2022]
Abstract
The compound 1,3,3-trimethyl-2-oxabicyclo[2.2.2]octan-9-ol (9-hydroxyeucaliptol) has been prepared and characterized by single-crystal X-ray diffraction analysis, infrared, Raman, and UV-visible spectroscopies. The molecular geometry of the title compound was also investigated theoretically by density functional theory (DFT) calculations to compare with the experimental data. The substance crystallizes in the trigonal crystal system, space group P32 with Z = 9 molecules per unit cell. There are three independent molecules in the crystal asymmetric unit having the same chirality and showing some differences in the orientation of the H-atom of the hydroxyl group. The crystal structure of 9-hydroxyeucaliptol shows that the hydroxyl group presents an anti-conformation with respect to the O-atom of the ether group. The crystal packing of 9-hydroxyeucaliptol is stabilized by intermolecular O-H···O hydrogen bonds involving the hydroxyl groups of different molecules, which play a decisive role in the preferred conformation adopted in solid state. The intermolecular interactions observed in solid state were also studied through the Hirshfeld surface analysis and quantum theory of atoms in molecules (QTAIM) approaches. Energy framework calculations have also been carried out to analyze and visualize the topology of the supramolecular assembly, and the results indicate a significant contribution from electrostatic energy over the dispersion.
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Affiliation(s)
- Carolina E Galvez
- Cátedra de Química Orgánica II. Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Mariana Rocha
- INBIOFAL (CONICET-UNT). Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Margarita B Villecco
- Cátedra de Química Orgánica II. Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - María Del H Loandos
- Cátedra de Química Orgánica II. Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Diego M Gil
- INBIOFAL (CONICET-UNT). Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina.
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17
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Martini N, Parente JE, Restrepo-Guerrero G, Franca CA, Piro OE, Echeverría GA, Williams PA, Ferrer EG. Tetraacuo-bis-(N,N-dimethylacetamide-O)magnesium(II) chloride dihydrate. An option to improve magnesium effect on phosphatase stimulation and albumin binding. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Pérez H, Di Santo A, Piro OE, Echeverría GA, Cano A, González M, Rodríguez-Hernández J, Ben Altabef A, Frontera A, Gil DM. A first exploration of isostructurality in transition metal nitroprussides: X-ray analysis, magnetic properties and DFT calculations. CrystEngComm 2021. [DOI: 10.1039/d0ce01596b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal M(ii) (M = Mn, Fe, Cu, Zn, Cd) nitroprussides with 1-methyl-imidazole were prepared and characterized by spectroscopic techniques, thermal analysis, and powder (Fe complex) and single-crystal XRD.
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Affiliation(s)
- Hiram Pérez
- Departamento de Química General e Inorgánica
- Facultad de Química
- Universidad de La Habana
- La Habana
- Cuba
| | - Alejandro Di Santo
- INQUINOA (CONICET – UNT)
- Instituto de Química Física
- Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
| | - Oscar E. Piro
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata and IFLP institute (CONICET, CCT-La Plata)
- La Plata
- Argentina
| | - Gustavo A. Echeverría
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata and IFLP institute (CONICET, CCT-La Plata)
- La Plata
- Argentina
| | - A. Cano
- Instituto Politécnico Nacional
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada
- Ciudad de México
- Mexico
- Materials Analysis
| | - M. González
- Instituto Politécnico Nacional
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada
- Ciudad de México
- Mexico
| | | | - A. Ben Altabef
- INQUINOA (CONICET – UNT)
- Instituto de Química Física
- Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
| | - Diego M. Gil
- Members of the Research Career of CONICET
- Argentina
- INBIOFAL (CONICET – UNT)
- Instituto de Química Orgánica
- Facultad de Bioquímica
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Balsa LM, Ferraresi-Curotto V, Lavecchia MJ, Echeverría GA, Piro OE, García-Tojal J, Pis-Diez R, González-Baró AC, León IE. Anticancer activity of a new copper(II) complex with a hydrazone ligand. Structural and spectroscopic characterization, computational simulations and cell mechanistic studies on 2D and 3D breast cancer cell models. Dalton Trans 2021; 50:9812-9826. [PMID: 34190268 DOI: 10.1039/d1dt00869b] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report here the synthesis, crystal structure, characterization and anticancer activity of a copper(ii)-hydrazone complex, [Cu(MeBHoVa)(H2O)2](NO3) (for short, CuHL), against human breast cancer cells on monolayer (2D) and spheroids/mammospheres (3D). The solid-state molecular structure of the complex has been determined by X-ray diffraction methods. The conformational space was searched and geometries were optimized both in the gas phase and including solvent effects by computational methods based on DFT. The compound has been characterized in the solid state and in solution by spectroscopic (FTIR, Raman, UV-vis) methods. The results were compared with those obtained for the hydrazone ligand and complemented with DFT calculations. Cell viability assays on MCF7 (IC50(CuHL) = 1.7 ± 0.1 μM, IC50(CDDP) = 42.0 ± 3.2 μM) and MDA-MB-231 (IC50(CuHL) = 1.6 ± 0.1 μM, IC50(CDDP) = 131.0 ± 18 μM) demonstrated that the complex displays higher antitumor activity than cisplatin (CDDP) on 2D and 3D human breast cancer cell models. Molecular docking and molecular dynamics simulations showed that CuHL could interacts with DNA, inducing a significant genotoxic effect on both breast cancer cells from 0.5 to 1 μM. On the other hand, CuHL increases the ROS production and induces cell programmed death on breast cancer cells at very low micromolar concentrations (0.5-1.0 μM). Moreover, the compound decreased the amount of breast CSCs on MCF7 and MDA-MB-231 cells reducing the percentage of CD44+/CD24-/low cells from 0.5 to 1.5 μM. In addition, CuHL overcame CDDP with an IC50 value 65-fold lower against breast multicellular spheroids ((IC50(CuHL) = 2.2 ± 0.3 μM, IC50(CDDP) = 125 ± 4.5 μM)). Finally, CuHL reduced mammosphere formation capacity, hence affecting the size and number of mammospheres and showing that the complex exhibits antitumor properties on monolayer (2D) and spheroids (3D) derived from human breast cancer cells.
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Affiliation(s)
- Lucia M Balsa
- Centro de Química Inorgánica (CEQUINOR, CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv 120 1465, 1900 La Plata, Argentina.
| | | | - Martin J Lavecchia
- Centro de Química Inorgánica (CEQUINOR, CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv 120 1465, 1900 La Plata, Argentina.
| | - Gustavo A Echeverría
- Instituto de Física La Plata (IFLP, CONICET-UNLP), CC 67, B1900AVV, La Plata, Argentina.
| | - Oscar E Piro
- Instituto de Física La Plata (IFLP, CONICET-UNLP), CC 67, B1900AVV, La Plata, Argentina.
| | - Javier García-Tojal
- Departamento de Química, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Reinaldo Pis-Diez
- Centro de Química Inorgánica (CEQUINOR, CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv 120 1465, 1900 La Plata, Argentina.
| | - Ana C González-Baró
- Centro de Química Inorgánica (CEQUINOR, CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv 120 1465, 1900 La Plata, Argentina.
| | - Ignacio E León
- Centro de Química Inorgánica (CEQUINOR, CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv 120 1465, 1900 La Plata, Argentina.
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Gil DM, Lizarraga E, Echeverría GA, Piro OE, Catalán CA. On the importance of intermolecular interactions of 3-(2,3-dihydroxy-isopentyl)-4-hydroxyacetophenone: Crystal structure, spectroscopic and hirshfeld surface analysis. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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21
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Gil DM, Pérez H, Echeverría GA, Piro OE, Frontera A. Role of Imidazole Co–Ligand in the Supramolecular Network of a Co(II) Complex with Sulfadiazine: Crystal Structure, Hirshfeld Surface Analysis and Energetic Calculations. ChemistrySelect 2020. [DOI: 10.1002/slct.202001567] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Diego M. Gil
- INBIOFAL (CONICET – UNT). Instituto de Química Orgánica. Facultad de BioquímicaQuímica y Farmacia.Universidad Nacional de Tucumán. Ayacucho 471. T4000INI. San Miguel de Tucumán. Argentina
- CONICET Research Career Members
| | - Hiram Pérez
- Departamento de Química General e InorgánicaFacultad de Química.Universidad de La Habana CP 10400 La Habana Cuba
| | - Gustavo A. Echeverría
- CONICET Research Career Members
- Departamento de FísicaFacultad de Ciencias Exactas.Universidad Nacional de La Plata and Institute IFLP (CONICET CCT−La Plata). C. C. 67 1900 La Plata Argentina
| | - Oscar E. Piro
- CONICET Research Career Members
- Departamento de FísicaFacultad de Ciencias Exactas.Universidad Nacional de La Plata and Institute IFLP (CONICET CCT−La Plata). C. C. 67 1900 La Plata Argentina
| | - Antonio Frontera
- Departament de QuímicaUniversitat de les Illes Balears, Crta de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares) Spain
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Piro OE, Echeverría GA, Parajón-Costa BS, Baran EJ. A new acesulfamato complex: [Cu(acesulfamato)2(H2O)4]. Structural and spectroscopic characterization. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Molano MF, Lorett Velasquez VP, Erben MF, Nossa González DL, Loaiza AE, Echeverría GA, Piro OE, Tobón YA, Ben Tayeb K, Gómez Castaño JA. Crystal structure, spectroscopic characterization and Hirshfeld surface analysis of aqua-dichlorido-{ N-[(pyridin-2-yl)methyl-idene]aniline}copper(II) monohydrate. Acta Crystallogr E Crystallogr Commun 2020; 76:148-154. [PMID: 32071738 PMCID: PMC7001833 DOI: 10.1107/s2056989019017213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/24/2019] [Indexed: 11/11/2022]
Abstract
The reaction of N-phenyl-1-(pyridin-2-yl)methanimine with copper chloride dihydrate produced the title neutral complex, [CuCl2(C12H10N2)(H2O)]·H2O. The CuII ion is five-coordinated in a distorted square-pyramidal geometry, in which the two N atoms of the bidentate Schiff base, as well as one chloro and a water mol-ecule, form the irregular base of the pyramidal structure. Meanwhile, the apical chloride ligand inter-acts through a strong hydrogen bond with a water mol-ecule of crystallization. In the crystal, mol-ecules are arranged in pairs, forming a stacking of symmetrical cyclic dimers that inter-act in turn through strong hydrogen bonds between the chloride ligands and both the coordinated and the crystallization water mol-ecules. The mol-ecular and electronic structures of the complex were also studied in detail using EPR (continuous and pulsed), FT-IR and Raman spectroscopy, as well as magnetization measurements. Likewise, Hirshfeld surface analysis was used to investigate the inter-molecular inter-actions in the crystal packing.
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Affiliation(s)
- Miguel F. Molano
- Laboratorio de Química Teórica y Computacional, Grupo Química-Física Molecular y Modelamiento Computacional (QUIMOL), Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Boyacá, 050030, Colombia
| | | | - Mauricio F. Erben
- Centro de Química Inorgánica (CEQUINOR), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 962, 1900 La Plata, Argentina
| | - Diana L. Nossa González
- Centro de Química Inorgánica (CEQUINOR), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 962, 1900 La Plata, Argentina
| | - Alix E. Loaiza
- Departamento de Química, Facultad de Ciencias, Pontificia Universidad Javeriana, 110231561 Bogotá, Colombia
| | - Gustavo A. Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP(CONICET), C.C. 67, 1900 La Plata, Argentina
| | - Oscar E. Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP(CONICET), C.C. 67, 1900 La Plata, Argentina
| | - Yeny A. Tobón
- University of Lille, CNRS, UMR 8516, LASIR - Laboratoire de Spectrochimie Infrarouge et Raman, F-59000 Lille, France
| | - Karima Ben Tayeb
- University of Lille, CNRS, UMR 8516, LASIR - Laboratoire de Spectrochimie Infrarouge et Raman, F-59000 Lille, France
| | - Jovanny A. Gómez Castaño
- Laboratorio de Química Teórica y Computacional, Grupo Química-Física Molecular y Modelamiento Computacional (QUIMOL), Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Boyacá, 050030, Colombia
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Lafuente L, Santiago CC, Rojas AH, Piro OE, Echeverría GA, Ponzinibbio A. Selective Synthesis and Molecular Structure of Novel Aminooxyglycosyl Derivatives Bearing Hydroxyphenyl Moieties. ChemistrySelect 2020. [DOI: 10.1002/slct.201903727] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Leticia Lafuente
- Centro de Estudio de Compuestos Orgánicos (CEDECOR-UNLP-CIC). Universidad Nacional de La Plata. 47 y 115 1900 La Plata Argentina
| | - Cintia C. Santiago
- Departamento de Química, Facultad de Ciencias Exactas. Universidad Nacional de La Plata. 47 y 115 1900 La Plata Argentina
| | - Agustín H. Rojas
- Centro de Estudio de Compuestos Orgánicos (CEDECOR-UNLP-CIC). Universidad Nacional de La Plata. 47 y 115 1900 La Plata Argentina
| | - Oscar E. Piro
- LANADI e IFLP (CCT-La Plata), Departamento de Física, Facultad de Ciencias Exactas Universidad Nacional de La Plata. CC 67 1900 La Plata Argentina
| | - Gustavo A. Echeverría
- LANADI e IFLP (CCT-La Plata), Departamento de Física, Facultad de Ciencias Exactas Universidad Nacional de La Plata. CC 67 1900 La Plata Argentina
| | - Agustín Ponzinibbio
- Centro de Estudio de Compuestos Orgánicos (CEDECOR-UNLP-CIC). Universidad Nacional de La Plata. 47 y 115 1900 La Plata Argentina
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Saeed A, Khurshid A, Flörke U, Echeverría GA, Piro OE, Gil DM, Rocha M, Frontera A, El-Seedi HR, Mumtaz A, Erben MF. Intermolecular interactions in antipyrine-like derivatives 2-halo- N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1 H-pyrazol-4-yl)benzamides: X-ray structure, Hirshfeld surface analysis and DFT calculations. NEW J CHEM 2020. [DOI: 10.1039/d0nj03958f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Based on experimental and computational data, a complex network of intermolecular interactions has been rationalized for antipyrine compounds.
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Rocha M, Echeverría GA, Piro OE, Jios JJ, Molina RDI, Arena ME, Ulic SE, Gil DM. Synthesis, Structure, and Biological Assays of Novel Trifluoromethyldiazepine–Metal Complexes. Aust J Chem 2020. [DOI: 10.1071/ch19352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A new series of CuII, NiII, CoII, and MnIII complexes have been synthesised from the (6Z)-6-(7-trifluoromethyl-1,2,3,4-tetrahydro-5H-1,4-diazepin-5-ylidene)cyclohexa-2,4-dien-1-one (HDZP) ligand. These complexes were characterised by elemental, spectroscopic (IR and UV-vis), and thermal analysis. The crystal structure of Cu-DZP was solved by X-ray diffraction methods. The complex crystallises in the monoclinic P21/c space group, with two molecules per unit cell. The crystal lattice is stabilised by different intra and intermolecular interactions. Hirshfeld surface analysis was employed to obtain additional information about interactions that are responsible for the crystal packing. Quantitative examination of the fingerprint plots indicated the dominant contribution of H⋯H and H⋯X (X=O, F) interactions in the crystal packing. In addition, C–H⋯chelate ring (CR) and C–H⋯π interactions are described in detail and evaluated using DFT calculations. The antibacterial properties and the mechanism of inhibition of the main bacterial resistant mechanism, the biofilm, of the metal complexes and free ligand were investigated. [Mn(DZP)3]·2H2O was the most active complex against the Pseudomonas aeruginosa biofilm formation with an inhibition of 40%. However, none of the complexes inhibit more than 25% of the Gram negative bacteria microbial development. The most meaningful result was the bactericidal effect of [Co(DZP)2(H2O)2]·2H2O against the Gram positive bacteria, Staphylococcus aureus, which inhibits the bacterial development and significantly reduces the biofilm formation at low concentration.
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Naso LG, Martínez Medina JJ, D'Alessandro F, Rey M, Rizzi A, Piro OE, Echeverría GA, Ferrer EG, Williams PAM. Ternary copper(II) complex of 5-hydroxytryptophan and 1,10-phenanthroline with several pharmacological properties and an adequate safety profile. J Inorg Biochem 2019; 204:110933. [PMID: 31825796 DOI: 10.1016/j.jinorgbio.2019.110933] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/12/2019] [Accepted: 11/17/2019] [Indexed: 12/22/2022]
Abstract
We report the synthesis and biological evaluation of a ternary copper complex, [Cu(5HTP)(phen)(H2O)](NO3).2H2O, with the antioxidant agent 5-hydroxytryptophan (5-HTP) and phenanthroline (phen, added to improve its lipophilicity and membrane transport). The crystal structure of the complex was determined by X-ray diffraction methods. The complex showed antioxidant, antimicrobial, antitumor and antimetastatic properties with an adequate safety profile. The interaction of the metal with phen promotes cellular copper accumulation and cytotoxicity on human lung A549 cell line (IC50 = 3.6 μM). Furthermore, the viability of the normal human fetal lung fibroblast cell line (MRC-5) is not altered by the complex. An oxidative stress mechanism for the anticancer effect has been determined: cellular increase of reactive oxygen species (ROS), decrease of the glutathione (GSH) and oxidized GSH (GSSG) ratio and alteration of the mitochondrial potential. The complex also displays antimetastatic activities with inhibition of cell adhesion, invasion and migration. It has not mutagenic behavior and no toxicity on Artemia salina indicating its potential to act as an effective and safety antimicrobial and antitumor drug.
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Affiliation(s)
- Luciana G Naso
- CEQUINOR, CONICET/UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina.
| | - Juan J Martínez Medina
- Universidad Nacional del Chaco Austral, Comandante Fernández 755, CP: 3700 Presidencia Roque Sáenz Peña, Chaco, Argentina
| | - Franco D'Alessandro
- CEQUINOR, CONICET/UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina
| | - Marilin Rey
- Departamento de Física, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria-Paraje El Pozo, 3000 Santa Fe, Argentina
| | - Alberto Rizzi
- Departamento de Física, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria-Paraje El Pozo, 3000 Santa Fe, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Evelina G Ferrer
- CEQUINOR, CONICET/UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina
| | - Patricia A M Williams
- CEQUINOR, CONICET/UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina.
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Martini N, Parente JE, Toledo ME, Escudero GE, Laino CH, Piro OE, Echeverría GA, Williams PAM, Ferrer EG. Antidepressant and antinociceptive activities in animal models and in vitro assessment of the anti-thyroid activity of bis(DL-pyroglutamate)magnesium complex. Pharmacol Rep 2019; 71:1273-1280. [PMID: 31675673 DOI: 10.1016/j.pharep.2019.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/18/2019] [Accepted: 07/25/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Magnesium is an essential element related with biochemistry of the brain and different types of depression have been associated with its deficiency. METHODS The structure of a novel magnesium bis(DL-pyroglutamate) (Mg(DL-pGlu)2) was elucidated by X-ray crystallography. Wistar rats were used in the in vivo experiments. The antidepressant-like effect was assessed by the forced swim test (FST) and the antinociceptive activity was evaluated using hot plate test. In both, non-specific effects were evaluated by the open field test. Anti-thyroid activity was examined using Lang's method. Albumin binding behavior was evaluated by 3D fluorescence spectroscopy. RESULTS For the Mg(DL-pGlu)2 complex (30 mg/kg), the FST test on Wistar rats revealed a decrease of 22% in the immobility time and an increment of 106% in the swimming time. The compound alters neither the locomotor activity nor the body weight after chronic administration. At the same dose, it showed antinociceptive activity, increasing the response latency. It blocks iodination reactions generating a charge transfer complex with iodine hence indicating anti-thyroid activity (Kc = 45366.5 ± 29 M-1). Albumin 3D fluorescence spectroscopy experiments showed intensity increase of peak A and decrease of peak B. CONCLUSIONS The results showed that the new compound produced a lowering of the immobility time and an increment of the swimming ability of the rats. The compound is able to increase the response latency in 70.0%, to capture iodine (anti-thyroid activity) and to interact with albumin through covalent type of interaction of the free NH groups.
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Affiliation(s)
- Nancy Martini
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP)-Departamento de Química - Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Juliana E Parente
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP)-Departamento de Química - Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Maria Eugenia Toledo
- Instituto de Biotecnología del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), La Rioja, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Graciela E Escudero
- Instituto de Bioquímica y Farmacia del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), La Rioja, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Carlos H Laino
- Instituto de Biotecnología del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), La Rioja, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Oscar E Piro
- Instituto de Bioquímica y Farmacia del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), La Rioja, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Gustavo A Echeverría
- Instituto de Bioquímica y Farmacia del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), La Rioja, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Patricia A M Williams
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP)-Departamento de Química - Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina
| | - Evelina G Ferrer
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP)-Departamento de Química - Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina; Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), La Plata, Argentina.
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Rocha M, Gil DM, Echeverría GA, Piro OE, Jios JL, Ulic SE. Enol-imino-Keto-enamine Tautomerism in a Diazepine Derivative: How Decisive Are the Intermolecular Interactions in the Equilibrium? J Org Chem 2019; 84:11042-11053. [PMID: 31419129 DOI: 10.1021/acs.joc.9b01533] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The strange tautomeric equilibrium behavior exhibited by a new o-hydroxyphenyl diazepine derivative when the compound is analyzed both in solution and solid state opens the structural study of the enol-imino-keto-enamine forms and the influence of the intermolecular interactions in their equilibrium. The expected enol-imino form, in which the enol is part of a phenyl system and a strong O-H···N intramolecular hydrogen bond is established, results the most stable tautomer in gas phase (theoretical calculations) and was detected by NMR spectroscopy when the compound was dissolved in aprotic solvents. Nevertheless, the keto-enamine form ,in which the keto group integrates a cyclohexadienone moiety and the aromaticity of the phenol is lost, was the only tautomer in the crystal lattice according to single-crystal X-ray diffraction, vibrational spectroscopy, and diffuse reflectance results. The last form was also found as the main tautomer in UV-vis and NMR spectroscopy when a protic solvent was employed.
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Affiliation(s)
- Mariana Rocha
- INQUINOA (CONICET - UNT). Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia , Universidad Nacional de Tucumán , San Lorenzo 456 , T4000CAN San Miguel de Tucumán , Argentina
| | - Diego M Gil
- INQUINOA (CONICET - UNT). Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia , Universidad Nacional de Tucumán , San Lorenzo 456 , T4000CAN San Miguel de Tucumán , Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas , Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata) , C.C. 67 , 1900 La Plata , Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas , Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata) , C.C. 67 , 1900 La Plata , Argentina
| | - Jorge L Jios
- Unidad PLAPIMU-LASEISIC (UNLP-CIC), Departamento de Química, Facultad de Ciencias Exactas , Universidad Nacional de La Plata , 47 esq 115 , 1900 La Plata , Argentina
| | - Sonia E Ulic
- CEQUINOR (CONICET-UNLP), Facultad de Ciencias Exactas , Universidad Nacional de La Plata , Bv 120 No. 1465 , 1900 La Plata , Argentina.,Departamento de Ciencias Básicas , Universidad Nacional de Luján , Rutas 5 y 7 , 6700 Luján , Buenos Aires , Argentina
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Affiliation(s)
- Jaime F. Martínez Suárez
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CONICET-CCT La Plata, Facultad de Ciencias Exactas, Departamento de Química, Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina
| | - José A. Caram
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CONICET-CCT La Plata, Facultad de Ciencias Exactas, Departamento de Química, Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina
| | - Gustavo. A. Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e Instituto IFLP (CONICET, CCT-La Plata), C. C. 67, 1900 La Plata, Argentina
| | - Oscar E. Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e Instituto IFLP (CONICET, CCT-La Plata), C. C. 67, 1900 La Plata, Argentina
| | - Ana. M. Gennaro
- Instituto de Física del Litoral, UNL-CONICET, Güemes 3450, 3000 Santa Fe, Argentina
- Departamento de Física, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, 3000 Santa Fe, Argentina
| | - María. V. Mirífico
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CONICET-CCT La Plata, Facultad de Ciencias Exactas, Departamento de Química, Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina
- Facultad de Ingeniería, Departamento de Ingeniería Química, Universidad Nacional de La Plata, Calle 47 y 1, 1900 La Plata, Argentina
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Rodríguez Arce E, Putzu E, Lapier M, Maya JD, Olea Azar C, Echeverría GA, Piro OE, Medeiros A, Sardi F, Comini M, Risi G, Salinas G, Correia I, Pessoa JC, Otero L, Gambino D. New heterobimetallic ferrocenyl derivatives are promising antitrypanosomal agents. Dalton Trans 2019; 48:7644-7658. [PMID: 31049548 DOI: 10.1039/c9dt01317b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In the search for a more effective chemotherapy for the treatment of Chagas' disease and human African trypanosomiasis, caused by Trypanosoma cruzi and Trypanosoma brucei parasites, respectively, the use of organometallic compounds may be a promising strategy. In this work, eight new heterobimetallic compounds are described including four 5-nitrofuryl containing thiosemicarbazones as bioactive ligands (HL1-HL4) and dppf = 1,1'-bis(diphenylphosphino) ferrocene as an organometallic co-ligand. Complexes of the formula [MII(L)(dppf)](PF6) with M = Pd or Pt were synthesized and fully characterized in the solid state and in solution, including the determination of the molecular structure of four of them by single crystal X-ray diffraction methods. Most compounds showed activity in the low micromolar or submicromolar range against both parasites, with the platinum compounds being more active than the palladium analogues. Activity was significantly increased by generation of the M-dppf compounds (3-24 fold increase with respect to free ligands HL for T. cruzi and up to 99 fold increase with respect to HL for T. brucei). The inclusion of the organometallic co-ligand also led to lower toxicity in mammalian cells and higher selectivity towards both parasites when compared to the free HL compounds. The complexes interact with DNA and affect the redox metabolism of the parasites. Furthermore, the most active and selective compound of the new series showed no in vivo toxicity in zebrafish embryos.
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Affiliation(s)
- Esteban Rodríguez Arce
- Química Inorgánica, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay.
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Jori N, Quispe PA, Islas MS, Piro OE, Echeverría GA, Ferrer EG, Williams PA. Unexpected oxidation of nitrendipine. Properties of oxidized nitrendipine and its Cu(II) complex. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rodríguez MR, Del Plá J, Balsa LM, León IE, Piro OE, Echeverría GA, García-Tojal J, Pis-Diez R, Parajón-Costa BS, González-Baró AC. Cu(ii) and Zn(ii) complexes with a poly-functional ligand derived from o-vanillin and thiophene. Crystal structure, physicochemical properties, theoretical studies and cytotoxicity assays against human breast cancer cells. NEW J CHEM 2019. [DOI: 10.1039/c8nj06274a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New ML2 complexes were extensively characterized showing stability in solution and promising anti-tumoral results, particularly for CuL2.
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Affiliation(s)
| | - Julián Del Plá
- CEQUINOR (CONICET-CCT La Plata, UNLP)
- B1900AVV La Plata
- Argentina
| | - Lucía M. Balsa
- CEQUINOR (CONICET-CCT La Plata, UNLP)
- B1900AVV La Plata
- Argentina
| | - Ignacio E. León
- CEQUINOR (CONICET-CCT La Plata, UNLP)
- B1900AVV La Plata
- Argentina
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Rocha M, Ruiz MC, Echeverría GA, Piro OE, Di Virgilio AL, León IE, Frontera A, Gil DM. Diethylaminophenyl-based Schiff base Cu(ii) and V(iv) complexes: experimental and theoretical studies and cytotoxicity assays. NEW J CHEM 2019. [DOI: 10.1039/c9nj04975d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A combined experimental and theoretical study and cytotoxicity assays of diethylaminophenyl-based Schiff base Cu(ii) and VO(iv) complexes are reported. The Cu(ii) complex shows interesting chelate ring⋯π interactions in the crystal structure.
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Affiliation(s)
- Mariana Rocha
- INQUINOA (CONICET-UNT)
- Instituto de Química Orgánica
- Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
| | - María C. Ruiz
- CEQUINOR (CONICET-UNLP)
- Facultad de Ciencias Exactas
- Universidad Nacional de la Plata
- La Plata
- Argentina
| | - Gustavo A. Echeverría
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- La Plata
- Argentina
| | - Oscar E. Piro
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- La Plata
- Argentina
| | - Ana L. Di Virgilio
- CEQUINOR (CONICET-UNLP)
- Facultad de Ciencias Exactas
- Universidad Nacional de la Plata
- La Plata
- Argentina
| | - Ignacio E. León
- CEQUINOR (CONICET-UNLP)
- Facultad de Ciencias Exactas
- Universidad Nacional de la Plata
- La Plata
- Argentina
| | - Antonio Frontera
- Department of Chemistry
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares)
- Spain
| | - Diego M. Gil
- INQUINOA (CONICET-UNT)
- Instituto de Química Orgánica
- Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
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Rocha M, Piro OE, Echeverría GA, Pastoriza AC, Sgariglia MA, Soberón JR, Gil DM. Co(II), Ni(II) and Cu(II) ternary complexes with sulfadiazine and dimethylformamide: Synthesis, spectroscopic characterization, crystallographic study and antibacterial activity. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Martínez VR, Aguirre MV, Todaro JS, Piro OE, Echeverría GA, Naso LG, Ferrer EG, Williams PAM. Interaction of Zn with Losartan. Activation of Intrinsic Apoptotic Signaling Pathway in Lung Cancer Cells and Effects on Alkaline and Acid Phosphatases. Biol Trace Elem Res 2018; 186:413-429. [PMID: 29651733 DOI: 10.1007/s12011-018-1334-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 04/03/2018] [Indexed: 02/03/2023]
Abstract
A new losartan [2-butyl-5-chloro-3-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]imidazol-4-yl]methanol zinc(II) complex [Zn(Los)Cl], was synthesized and characterized. The crystal structure was determined by x-ray diffraction methods. When aqueous solutions of the ligand and the metal were mixed, the known and more soluble powder [Zn(Los)2].3H2O (ZnLos) complex has been obtained. The interactions with phosphatases showed a concerted mechanism displayed by the Zn ions and ZnLos up to 500 μM concentration: a decrease of the acid phosphatase (AcP) associated with an increase in the alkaline phosphatase (ALP) activities. The complex and ZnSO4 showed a cytotoxic behavior on human lung A549 cancer cell line at concentrations higher than 75 μM with reactive oxygen species (ROS) generation and GSH (and GSH/GSSG ratio) depletion. Apoptotic cells were observed using terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) method, a mechanism accompanied by upregulation of BAX protein, downregulation of Bcl-XL and release of caspase-3. The BAX/Bcl-XL ratio was found to be significantly higher in cells exposure to ZnLos than cells treated with ZnSO4, in agreement with the higher apoptotic percentage of cells found for the complex. Cell death was found to be produced by apoptosis and no necrosis has been observed. On the contrary, losartan exerted low effects on phosphatases, produced some reduction of cancer cell viability (concentrations > 250 μM, number of apoptotic cells similar to the basal) with low ROS depletion, without alteration of the GSH/GSSG and low BAX/Bcl-XL ratios. In the MRC-5, normal lung fibroblasts cell line only ZnSO4 at concentrations higher than 200 μM displays cytotoxic effects. Graphical abstract Interaction of Zn with losartan. Activation of intrinsic apoptotic signaling pathway in lung cancer cells and effects on alkaline and acid phosphatases.
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Affiliation(s)
- Valeria R Martínez
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP), 120 N° 1465, La Plata, Argentina
| | - María V Aguirre
- Laboratorio de Investigaciones Bioquímicas, Facultad de Medicina, UNNE, Moreno, 1240, Corrientes, Argentina
| | - Juan S Todaro
- Laboratorio de Investigaciones Bioquímicas, Facultad de Medicina, UNNE, Moreno, 1240, Corrientes, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT La Plata), C.C. 67, 1900, La Plata, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT La Plata), C.C. 67, 1900, La Plata, Argentina
| | - Luciana G Naso
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP), 120 N° 1465, La Plata, Argentina
| | - Evelina G Ferrer
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP), 120 N° 1465, La Plata, Argentina
| | - Patricia A M Williams
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP), 120 N° 1465, La Plata, Argentina.
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37
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Baran EJ, Piro OE, Echeverría GA, Parajón-Costa BS. Structural and IR-spectroscopic characterization of pyridinium acesulfamate, a monoclinic twin. Zeitschrift für Naturforschung B 2018. [DOI: 10.1515/znb-2018-0074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe crystal structure of pyridinium 6-methyl-1,2,3,-oxathiazine-4(3H)-one-2,2-dioxide [(C5NH6)(C4H4NO4S)], for short, pyH(ace), was determined by X-ray diffraction methods. It crystallizes as a twin in the monoclinic space groupP21/cwitha=6.9878(9),b=7.2211(7),c=21.740(2) Å,β=91.67(1)° andZ=4 molecules per unit cell. The structure was determined employing 1599 reflections withI>2σ(I) from one of the twin domains and refined employing 2092 reflections from both crystal domains to an agreement R1 factor of 0.0466. Besides electrostatic attractions, intermolecular pyH···O=C(ace) hydrogen bonds stabilize the acesulfamate anion and the pyridinium cation into planar discrete units parallel to the (100) crystal plane. The units form stacks of alternating ace−and pyH+ions along theaaxis that favors inter-ring π–π interactions. The Fourier transform-infrared (FT-IR) spectrum of the compound was recorded and is briefly discussed. Some comparisons with related pyridinium saccharinate salts are also made.
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Affiliation(s)
- Enrique J. Baran
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET-CCT-La Plata, UNLP) , Universidad Nacional de La Plata , Bvd. 120, No. 1465 , 1900-La Plata , Argentina
| | - Oscar E. Piro
- Facultad de Ciencias Exactas, Departamento de Física and Instituto IFLP (CONICET-CCT-La Plata) , Universidad Nacional de La Plata , 1900-La Plata , Argentina
| | - Gustavo A. Echeverría
- Facultad de Ciencias Exactas, Departamento de Física and Instituto IFLP (CONICET-CCT-La Plata) , Universidad Nacional de La Plata , 1900-La Plata , Argentina
| | - Beatriz S. Parajón-Costa
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET-CCT-La Plata, UNLP) , Universidad Nacional de La Plata , Bvd. 120, No. 1465 , 1900-La Plata , Argentina
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38
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Martínez VR, Aguirre MV, Todaro JS, Piro OE, Echeverría GA, Ferrer EG, Williams PAM. Azilsartan and its Zn(II) complex. Synthesis, anticancer mechanisms of action and binding to bovine serum albumin. Toxicol In Vitro 2018; 48:205-220. [PMID: 29408668 DOI: 10.1016/j.tiv.2018.01.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/15/2017] [Accepted: 01/14/2018] [Indexed: 02/08/2023]
Abstract
Azilsartan is the eighth approved member of angiotensin II receptor blockers for hypertension treatment. Considering that some drugs have additional effects when administered, we studied its effects and mechanisms of action on a human lung cancer cell line A549. We have also modified the structure of the drug by complexation with Zn(II) cation and assayed the anticancer effect. The crystal structure of the new binuclear Zn(II) complex, for short [Zn2(azil)2(H2O)4]·2H2O (ZnAzil), was determined by X-ray diffraction methods. The zinc ions are bridged by azilsartan ligands through their carboxylate oxygen and oxadiazol nitrogen atoms. The compounds were examined for their cytotoxic effects against human lung fibroblast (MRC5) and human lung cancer (A549) cell lines. Azilsartan displayed low cytotoxic effects at 150 μM concentrations in A549 human lung cancer cells but the higher effect measured for the Zn complex suggested that this compound may act as an anticancer agent. An apoptotic oxidative stress mechanism of action via the mitochondrial-dependent intrinsic pathway has been determined. Besides, the compounds exerted weak cytotoxic effects in the normal lung related cell line MRC5. Binding constants of the complex formed between each compound and bovine serum albumin (BSA) are in the intermediate range, hence suggesting that azilsartan and ZnAzil could be bonded and transported by BSA.
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Affiliation(s)
- Valeria R Martínez
- Centro de Química Inorgánica (CEQUINOR-CONICET-UNLP), 120 N° 1465, La Plata, Argentina
| | - María V Aguirre
- Laboratorio de Investigaciones Bioquímicas, Facultad de Medicina, UNNE, Moreno 1240, Corrientes, Argentina
| | - Juan S Todaro
- Laboratorio de Investigaciones Bioquímicas, Facultad de Medicina, UNNE, Moreno 1240, Corrientes, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Evelina G Ferrer
- Centro de Química Inorgánica (CEQUINOR-CONICET-UNLP), 120 N° 1465, La Plata, Argentina
| | - Patricia A M Williams
- Centro de Química Inorgánica (CEQUINOR-CONICET-UNLP), 120 N° 1465, La Plata, Argentina.
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Caram JA, Jiménez Macías JP, Arroyo NR, Martínez Suárez JF, Gennaro AM, Echeverría GA, Piro OE, Mirífico MV. Stability of the Monoelectronic Reduction Product from 1,2,5‐Thiadiazole S,S‐Dioxides. Electrochemical, Chemical, and Photoinduced Doping. ChemistrySelect 2018. [DOI: 10.1002/slct.201801237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- José A. Caram
- Department of ChemistryInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)CCT La Plata-CONICETFacultad de Ciencias ExactasUniversidad Nacional de La Plata (UNLP) Casilla de Correo 16, Sucursal 4 1900 La Plata Argentina
| | - Julyleth P. Jiménez Macías
- Department of ChemistryInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)CCT La Plata-CONICETFacultad de Ciencias ExactasUniversidad Nacional de La Plata (UNLP) Casilla de Correo 16, Sucursal 4 1900 La Plata Argentina
| | - Nelson Rodríguez Arroyo
- Department of ChemistryInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)CCT La Plata-CONICETFacultad de Ciencias ExactasUniversidad Nacional de La Plata (UNLP) Casilla de Correo 16, Sucursal 4 1900 La Plata Argentina
| | - Jaime F. Martínez Suárez
- Department of ChemistryInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)CCT La Plata-CONICETFacultad de Ciencias ExactasUniversidad Nacional de La Plata (UNLP) Casilla de Correo 16, Sucursal 4 1900 La Plata Argentina
| | - Ana M. Gennaro
- IFIS Litoral- UNL-CONICET and Department of PhysicsFacultad de Bioquímica y Ciencias Biológicas, UNL, Güemes 3450 3000 Santa Fe Argentina
| | - Gustavo A. Echeverría
- Department of PhysicsFacultad de Ciencias ExactasUniversidad Nacional de La Plata e Instituto IFLP (CONICET, CCT−La Plata), C. C. 67 1900 La Plata Argentina
| | - Oscar E. Piro
- Department of PhysicsFacultad de Ciencias ExactasUniversidad Nacional de La Plata e Instituto IFLP (CONICET, CCT−La Plata), C. C. 67 1900 La Plata Argentina
| | - María V. Mirífico
- Department of ChemistryInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)CCT La Plata-CONICETFacultad de Ciencias ExactasUniversidad Nacional de La Plata (UNLP) Casilla de Correo 16, Sucursal 4 1900 La Plata Argentina
- Department of Chemical EngineeringFacultad de IngenieríaUniversidad Nacional de La Plata, Calle 47 y 1 1900 La Plata Argentina
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40
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Rodríguez MR, Del Plá J, Piro OE, Echeverría GA, Espino G, Pis-Diez R, Parajón-Costa BS, González-Baró AC. Structure, tautomerism, spectroscopic and DFT study of o-vanillin derived Schiff bases containing thiophene ring. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.120] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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41
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Islas MS, Martínez Medina JJ, Piro OE, Echeverría GA, Ferrer EG, Williams PAM. Comparisons of the spectroscopic and microbiological activities among coumarin-3-carboxylate, o-phenanthroline and zinc(II) complexes. Spectrochim Acta A Mol Biomol Spectrosc 2018; 198:212-221. [PMID: 29547823 DOI: 10.1016/j.saa.2018.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/28/2018] [Accepted: 03/02/2018] [Indexed: 05/08/2023]
Abstract
Coumarins (2H-chromen-2-one) are oxygen-containing heterocyclic compounds that belong to the benzopyranones family. In this work we have synthesized different coordination complexes with coumarin-3-carboxylic acid (HCCA), o-phenanthroline (phen) and zinc(II). In the reported [Zn(CCA)2(H2O)2] complex, coumarin-3-carboxylate (CCA) is acting as a bidentate ligand while in the two prepared complexes, [Zn(phen)3]CCA(NO3) (obtained as a single crystal) and [Zn(CCA)2phen].4H2O, CCA is acting as a counterion of the complex cation [Zn(phen)3]+2 or coordinated to the metal center along with phen, respectively. These compounds were characterized on the basis of elemental analysis and thermogravimetry. NMR, FTIR and Raman spectroscopies of the compounds and the CCA potassium salt (KCCA) allow to determine several similarities and differences among them. Finally, their behavior against alkaline phosphatase enzyme and their antimicrobial activities were also measured.
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Affiliation(s)
- María S Islas
- Centro de Química Inorgánica (CEQUINOR), FCE, UNLP, Bv. 120 n° 1465, 1900 La Plata, Argentina
| | | | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP(CONICET, CCT La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP(CONICET, CCT La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Evelina G Ferrer
- Centro de Química Inorgánica (CEQUINOR), FCE, UNLP, Bv. 120 n° 1465, 1900 La Plata, Argentina
| | - Patricia A M Williams
- Centro de Química Inorgánica (CEQUINOR), FCE, UNLP, Bv. 120 n° 1465, 1900 La Plata, Argentina.
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42
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Di Santo A, Pérez H, Echeverría GA, Piro OE, Iglesias RA, Carbonio RE, Ben Altabef A, Gil DM. Exploring weak intermolecular interactions in thiocyanate-bonded Zn(ii) and Cd(ii) complexes with methylimidazole: crystal structures, Hirshfeld surface analysis and luminescence properties. RSC Adv 2018; 8:23891-23902. [PMID: 35540273 PMCID: PMC9081733 DOI: 10.1039/c8ra04452j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 06/25/2018] [Indexed: 11/21/2022] Open
Abstract
We report the synthesis, spectroscopy and X-ray crystal structures of four Cd(ii) and Zn(ii) coordination compounds with imidazole derivatives and thiocyanate as co-ligands.
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Affiliation(s)
- Alejandro Di Santo
- INQUINOA (CONICET-UNT). Instituto de Química Física. Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
- San Miguel de Tucumán
- Argentina
| | - Hiram Pérez
- Departamento de Química General e Inorgánica
- Facultad de Química
- Universidad de La Habana
- Habana 10400
- Cuba
| | - Gustavo A. Echeverría
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- La Plata
- Argentina
| | - Oscar E. Piro
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- La Plata
- Argentina
| | - Rodrigo A. Iglesias
- INFIQC (CONICET-UNC)
- Departamento de Fisicoquímica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
- Ciudad Universitaria
| | - Raúl E. Carbonio
- INFIQC (CONICET-UNC)
- Departamento de Fisicoquímica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
- Ciudad Universitaria
| | - Aida Ben Altabef
- INQUINOA (CONICET-UNT). Instituto de Química Física. Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
- San Miguel de Tucumán
- Argentina
| | - Diego M. Gil
- INQUINOA (CONICET-UNT). Instituto de Química Física. Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
- San Miguel de Tucumán
- Argentina
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Gil DM, Salomón FF, Echeverría GA, Piro OE, Pérez H, Altabef AB. A detailed exploration of intermolecular interactions in 4-(4-dimethylaminobenzylideneamino)-N-(5-methyl-3-isoxazolyl)benzenesulfonamide and related Schiff bases: Crystal structure, spectral studies, DFT methods, Pixel energies and Hirshfeld surface analysis. Spectrochim Acta A Mol Biomol Spectrosc 2017; 185:286-297. [PMID: 28595154 DOI: 10.1016/j.saa.2017.05.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/26/2017] [Accepted: 05/29/2017] [Indexed: 06/07/2023]
Abstract
The Schiff base of the title has been synthesized and its crystal structure determined by single-crystal X-ray diffraction. The compound was characterized by IR, Raman, 1H NMR, 13C NMR and electronic absorption spectra. DFT calculations provide the quantum chemical basis for the observed molecular conformation. A study of intermolecular interactions of the title compound is compared with seven other closely related structures and reveals that molecules in most of the compounds are linked by a cooperative effect of strong and weak hydrogen bonds, CH…π, and π…π stacking interactions, and also lp…π contacts. Lattice energy calculations indicate that the dispersion component is the major contribution, with the coulombic term playing a significant role in the total energy. Interaction energies for molecular pairs involving NH···N bonds indicate a dominant contribution to packing stabilization coming from coulomb component. Hirshfeld surfaces and 2D-fingerprint plots allowed us to visualize different intermolecular contacts and its relative contributions to total surface in each compound. The analysis of electrostatic potential (ESP) maps correlates well with the computed energies providing evidences on the dominant electrostatic nature of NH···N and NH···O interactions.
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Affiliation(s)
- Diego M Gil
- INQUINOA (CONICET-UNT), Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN San Miguel de Tucumán, Argentina.
| | - Fernando F Salomón
- INQUINOA (CONICET-UNT), Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN San Miguel de Tucumán, Argentina
| | - G A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT-La Plata), C. C. 67, 1900 La Plata, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y IFLP (CONICET, CCT-La Plata), C. C. 67, 1900 La Plata, Argentina
| | - Hiram Pérez
- Departamento de Química General e Inorgánica, Facultad de Química, Universidad de la Habana, Habana 10400, Cuba.
| | - Aida Ben Altabef
- INQUINOA (CONICET-UNT), Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN San Miguel de Tucumán, Argentina.
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Echeverría GA, Piro OE, Parajón-Costa BS, Baran EJ. Structural and IR-spectroscopic characterization of cadmium and lead(II) acesulfamates. Zeitschrift für Naturforschung B 2017. [DOI: 10.1515/znb-2017-0116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Cadmium and lead(II) acesulfamate, Cd(C4H4NO4S)2·2H2O and Pb(C4H4NO4S)2, were prepared by the reaction of acesulfamic acid and the respective metal carbonates in aqueous solution, and characterized by elemental analysis. Their crystal structures were determined by single crystal X-ray diffraction methods. The Cd(II) compound crystallizes in the monoclinic space group P21/c with Z=4 and the corresponding Pb(II) salt in the triclinic space group P1̅ with Z=2. In both salts, acesulfamate acts both as a bi-dentate ligand through its nitrogen and carbonyl oxygen atoms and also as a mono-dentate ligand through this same oxygen atom, giving rise to polymeric structures; in the Pb(II) salt the ligand also binds the cation through its sulfoxido oxygen atoms. The FTIR spectra of the compounds were recorded and are briefly discussed. Some comparisons with other related acesulfamate and saccharinate complexes are made.
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Affiliation(s)
- Gustavo A. Echeverría
- Facultad de Ciencias Exactas , Departamento de Física and Instituto IFLP (CONICET- CCT-La Plata) , Universidad Nacional de La Plata , 1900-La Plata , Argentina
| | - Oscar E. Piro
- Facultad de Ciencias Exactas , Departamento de Física and Instituto IFLP (CONICET- CCT-La Plata) , Universidad Nacional de La Plata , 1900-La Plata , Argentina
| | - Beatriz S. Parajón-Costa
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET- CCT-La Plata, UNLP) , Universidad Nacional de La Plata , Bvd. 120, N° 1465, 1900-La Plata , Argentina
| | - Enrique J. Baran
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET- CCT-La Plata, UNLP) , Universidad Nacional de La Plata , Bvd. 120, N° 1465, 1900-La Plata , Argentina
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Maisuls I, Wolcan E, Piro OE, Castellano EE, Petroselli G, Erra-Balsells R, Cabrerizo FM, Ruiz GT. Synthesis, Structural Characterization and Biological Evaluation of Rhenium(I) Tricarbonyl Complexes with β-Carboline Ligands. ChemistrySelect 2017. [DOI: 10.1002/slct.201701961] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Iván Maisuls
- INIFTA; UNLP (CCT La Plata-CONICET), Diag. 113 y 64, C.C. 16, Suc. 4, (B1906ZAA); La Plata Argentina
- IIB-INTECH - UNSAM-CONICET; I. Marino Km 8,2. CC 164 7130 Chascomús, Buenos Aires Argentina
| | - Ezequiel Wolcan
- INIFTA; UNLP (CCT La Plata-CONICET), Diag. 113 y 64, C.C. 16, Suc. 4, (B1906ZAA); La Plata Argentina
| | - Oscar E. Piro
- Instituto IFLP (CCT La Plata-CONICET) y Depto. de Física; FCE-UNLP, C.C. 67; 1900 La Plata Argentina
| | | | - Gabriela Petroselli
- CIHIDECAR-CONICET, Departamento de Química Orgánica, FCEyN; UBA, Pabellón II, 3er P., Ciudad Universitaria; (1428) Buenos Aires Argentina
| | - Rosa Erra-Balsells
- CIHIDECAR-CONICET, Departamento de Química Orgánica, FCEyN; UBA, Pabellón II, 3er P., Ciudad Universitaria; (1428) Buenos Aires Argentina
| | - Franco M. Cabrerizo
- IIB-INTECH - UNSAM-CONICET; I. Marino Km 8,2. CC 164 7130 Chascomús, Buenos Aires Argentina
| | - Gustavo T. Ruiz
- INIFTA; UNLP (CCT La Plata-CONICET), Diag. 113 y 64, C.C. 16, Suc. 4, (B1906ZAA); La Plata Argentina
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46
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Martini N, Parente JE, Toledo ME, Escudero GE, Laino CH, Martínez Medina JJ, Echeverría GA, Piro OE, Lezama L, Williams PAM, Ferrer EG. Evidence of promising biological-pharmacological activities of the sertraline-based copper complex: (SerH 2) 2[CuCl 4]. J Inorg Biochem 2017. [PMID: 28622579 DOI: 10.1016/j.jinorgbio.2017.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In the current study the ability of copper complex to exert multiple biological activities is combined with the pharmacological action of sertraline (SerH2Cl, antidepressant drug). The hydrated and anhydrous forms of the tetrachlorocuprate(II) salts, namely (SerH2)2[CuCl4]·½H2O and (SerH2)2[CuCl4], were synthesized and characterized by physicochemical methods. The crystal structures were determined by X-ray diffraction methods. The hydrate complex crystallizes in the monoclinic P21 space group with a=8.0807(2) Å, b=36.2781(8) Å, c=12.6576(3) Å, β=95.665(2)°, and Z=4 molecules per unit cell and the un-hydrate in P21 with a=13.8727(6) Å, b=7.5090(3) Å, c=18.618(1) Å, β=104.563(6)°, and Z=2. It has been suggested that Cu(II) ions might be critical in the development of mood disorders, showed potent biocidal activity, and also acted as analgesic adjuvant. To improve sertraline efficiency, the antidepressant and analgesic activities of the complex have been assessed in rats denoting a marked synergistic effect. Antithyroid and antimicrobial activities were also evaluated. Because depressive disorders and hyperthyroidism diseases led to an oxidative stress state, antioxidant capability has also been tested. The complex behaved as a good superoxide radical scavenger (IC50=6.3×10-6M). The ability of the complex to act as bromoperoxidase mimic was assessed. A pseudo-first order constant of k=0.157±0.007min-1 has been determined. The complex evidences promising biological-pharmacological activities and the albumin binding studies showed a Kb of 2.90×103M-1 showing an improvement in the uptake of sertraline by albumin at 8h incubation (time required for effective interaction of sertraline with the protein).
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Affiliation(s)
- Nancy Martini
- Centro de Química Inorgánica (CEQUINOR, CONICET, UNLP), Departamento de Química-Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Boulevard 120 entre 60 y 64, C.C.962-(B1900AVV)-1900 La Plata, Argentina
| | - Juliana E Parente
- Centro de Química Inorgánica (CEQUINOR, CONICET, UNLP), Departamento de Química-Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Boulevard 120 entre 60 y 64, C.C.962-(B1900AVV)-1900 La Plata, Argentina
| | - Maria Eugenia Toledo
- Instituto de Biotecnología del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), Av Luis Vernet y Apostol Felipe, 5300, La Rioja, Argentina
| | - Graciela E Escudero
- Instituto de Farmacia y Bioquímica del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), Av Luis Vernet y Apostol Felipe, 5300 La Rioja, Argentina
| | - Carlos H Laino
- Instituto de Biotecnología del CENIIT-UNLaR (Centro de Investigación e Innovación Tecnológica), Av Luis Vernet y Apostol Felipe, 5300, La Rioja, Argentina
| | - Juan José Martínez Medina
- Universidad Nacional del Chaco Austral, Comandante Fernández 755, CP: 3700 Presidencia Roque Sáenz Peña, Chaco, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), C.C. 67, 1900 La Plata, Argentina
| | - Luis Lezama
- Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, PO Box 644, 48080 Bilbao, Spain; BCMaterials, Parque científico y Tecnológico de Bizkaia, Edificio 500-1, 48160 Derio, Spain
| | - Patricia A M Williams
- Centro de Química Inorgánica (CEQUINOR, CONICET, UNLP), Departamento de Química-Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Boulevard 120 entre 60 y 64, C.C.962-(B1900AVV)-1900 La Plata, Argentina
| | - Evelina G Ferrer
- Centro de Química Inorgánica (CEQUINOR, CONICET, UNLP), Departamento de Química-Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Boulevard 120 entre 60 y 64, C.C.962-(B1900AVV)-1900 La Plata, Argentina.
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Delgado Espinosa ZY, Saeed A, Mahmood S, Echeverría GA, Piro OE, Erben MF. The effect of chalcogen substitution on the structure and spectroscopy of 4,7-dimethyl-2H-chromen-2-one/thione analogues. NEW J CHEM 2017. [DOI: 10.1039/c7nj01311f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The structural and spectroscopic properties of the 1-benzopyran-2-one/thione moiety.
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Affiliation(s)
- Zuly Yuliana Delgado Espinosa
- CEQUINOR (UNLP, CONICET-CCT La Plata)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- La Plata (1900)
| | - Aamer Saeed
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad 45320
- Pakistan
| | - Shamsul Mahmood
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad 45320
- Pakistan
| | - Gustavo A. Echeverría
- IFLP (CONICET, CCT-La Plata) Instituto de Física La Plata
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- La Plata (1900)
| | - Oscar E. Piro
- IFLP (CONICET, CCT-La Plata) Instituto de Física La Plata
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- La Plata (1900)
| | - Mauricio F. Erben
- CEQUINOR (UNLP, CONICET-CCT La Plata)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- La Plata (1900)
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48
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Piro OE, Echeverría GA, Mercader RC, González-Baró AC, Baran EJ. Crystal structure and spectroscopic behavior of three newtris-oxalatoferrate(III) salts. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1244670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Oscar E. Piro
- Facultad de Ciencias Exactas, Departamento de Física, Instituto Física de La Plata (IFLP, CONICET, CCT-La Plata), Universidad Nacional de La Plata, La Plata, Argentina
| | - Gustavo A. Echeverría
- Facultad de Ciencias Exactas, Departamento de Física, Instituto Física de La Plata (IFLP, CONICET, CCT-La Plata), Universidad Nacional de La Plata, La Plata, Argentina
| | - Roberto C. Mercader
- Facultad de Ciencias Exactas, Departamento de Física, Instituto Física de La Plata (IFLP, CONICET, CCT-La Plata), Universidad Nacional de La Plata, La Plata, Argentina
| | - Ana C. González-Baró
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR, CONICET/UNLP), Universidad Nacional de La Plata, La Plata, Argentina
| | - Enrique J. Baran
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR, CONICET/UNLP), Universidad Nacional de La Plata, La Plata, Argentina
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Rodríguez Arce E, Mosquillo MF, Pérez-Díaz L, Echeverría GA, Piro OE, Merlino A, Coitiño EL, Maríngolo Ribeiro C, Leite CQF, Pavan FR, Otero L, Gambino D. Aromatic amine N-oxide organometallic compounds: searching for prospective agents against infectious diseases. Dalton Trans 2016. [PMID: 26203896 DOI: 10.1039/c5dt00557d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
In search of prospective agents against infectious diseases, 1,1'-bis(diphenylphosphino)ferrocene pyridine-2-thiolato-1-oxide M(ii) hexafluorophosphate compounds [M(mpo)(dppf)](PF6), where M = palladium or platinum, were synthesized and fully characterized in the solid state and in solution using experimental and DFT computational techniques. The compounds are isomorphous and the M(ii) transition metal ions are in a nearly planar trapezoidal cis-coordination bound to the pyridine-2-thiolato-1-oxide (mpo) and to the 1,1'-bis(diphenylphosphino)ferrocene molecules, both acting as bidentate ligands. Both compounds showed high cytotoxic activity on Trypanosoma cruzi and Mycobacterium tuberculosis (MTB) and acceptable selectivities towards MTB, but good to excellent selectivity index values as anti-T. cruzi compounds. The inclusion of the ferrocene moiety (dppf ligand) improved the selectivity towards the parasite when compared to the previously reported [M(mpo)2] complexes. Related to the probable mechanism of action of the complexes, molecular docking studies on modelled T. cruzi NADH-fumarate reductase (TcFR) predicted that both be very good inhibitors of the enzyme. The effect of the compounds on the enzyme activity was experimentally confirmed using T. cruzi protein extracts. According to all obtained results, both [M(mpo)(dppf)](PF6) compounds could be considered prospective anti-trypanosomal agents that deserve further research.
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Affiliation(s)
- Esteban Rodríguez Arce
- Cátedra de Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay.
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50
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Escudero GE, Laino CH, Echeverría GA, Piro OE, Martini N, Rodríguez AN, Martínez Medina JJ, López Tévez LL, Ferrer EG, Williams PAM. Improving the antidepressant action and the bioavailability of sertraline by co-crystallization with coumarin 3-carboxylate. Structural determination. Chem Biol Interact 2016; 249:46-55. [PMID: 26952715 DOI: 10.1016/j.cbi.2016.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/17/2016] [Accepted: 03/04/2016] [Indexed: 11/27/2022]
Abstract
To improve the antidepressant action of sertraline a new salt with coumarin-3-carboxylate anion (SerH-CCA) has been synthesized by two different methods and characterized by FTIR spectroscopy and structural determinations by X-ray diffraction methods. The new salt is stabilized by strong intermolecular H-bonds involving the protonated amine group of SerH and the deprotonated carboxylate group of CCA. These findings can be correlated with the interpretation of the infrared spectrum. The salt, sertraline (SerHCl) and the sodium salt of coumarin-3-carboxylate (NaCCA) were orally administered male Wistar rats (10 mg/kg, based on sertraline). Rats were evaluated in separate groups by means of the forced swimming (FST). SerH-CCA produced antidepressant effects in a magnitude that exceeded SerHCl individual effects. None of these treatments affected activity levels by the open field OFT tests. We have also determined that the ion pair also improve the binding to bovine serum albumin (BSA) of the drug but retain its antimicrobial activity. It is reasonable to conclude that the replacement of chloride anion by a large organic anion in sertraline strengthens the pharmacological action of the native drug, binding to BSA with higher activity and retaining the antimicrobial activity of the antidepressant compound.
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Affiliation(s)
- Graciela E Escudero
- Instituto de Bioquímica y Farmacia (IByF), Centro de Investigación e Innovación Tecnológica (CENIIT), Universidad Nacional de La Rioja, Av. Luis Vernet y Apóstol Felipe, 5300, La Rioja, Argentina
| | - Carlos H Laino
- Instituto de Biotecnología, Centro de Investigación e Innovación Tecnológica (CENIIT), Universidad Nacional de La Rioja, Av. Luis Vernet y Apóstol Felipe, 5300, La Rioja, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP(CONICET, CCT La Plata), C.C. 67, 1900, La Plata, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP(CONICET, CCT La Plata), C.C. 67, 1900, La Plata, Argentina
| | - Nancy Martini
- Centro de Química Inorgánica (CEQUINOR, CONICET, UNLP)-Departamento de Química- Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115- C.C.962- (B1900AVV), 1900, La Plata, Argentina
| | - Ailén N Rodríguez
- Universidad Nacional del Chaco Austral, Com. Fernández 755, CP 3700, Presidencia Roque Sáenz Peña, Chaco, Argentina
| | - Juan J Martínez Medina
- Universidad Nacional del Chaco Austral, Com. Fernández 755, CP 3700, Presidencia Roque Sáenz Peña, Chaco, Argentina
| | - Libertad L López Tévez
- Universidad Nacional del Chaco Austral, Com. Fernández 755, CP 3700, Presidencia Roque Sáenz Peña, Chaco, Argentina
| | - Evelina G Ferrer
- Centro de Química Inorgánica (CEQUINOR, CONICET, UNLP)-Departamento de Química- Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115- C.C.962- (B1900AVV), 1900, La Plata, Argentina
| | - Patricia A M Williams
- Centro de Química Inorgánica (CEQUINOR, CONICET, UNLP)-Departamento de Química- Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115- C.C.962- (B1900AVV), 1900, La Plata, Argentina.
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