Search Results - "Echeverria, Gustavo"

Photo-Induced Partially Aromatized Intramolecular Charge Transfer by Romero, Angel H, Romero, Ivan E, Piro, Oscar E, Echeverría, Gustavo A, Gotopo, Lourdes A, Moller, Matías N, Rodríguez, Gonzalo A, Cabrera, Gustavo J, Castro, Erick R, López, Simón E, Cerecetto, Hugo E

“…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)…”
Get full text

Synthesis and Structural Characterization of Haloaryl N ‐Substituted Sugar Derivatives by Rengel, Natividad Bejarano, Esteche, Juliana, Echeverría, Gustavo A., Piro, Oscar E., Santiago, Cintia C., Ponzinibbio, Agustín

“…Abstract We present here the efficient preparation of 6‐ N ‐haloaryl‐galactosides through a reductive amination process. A complete set of…”
Get full text

Electrosynthesis of N‑Methylisatin by Martínez Suárez, Jaime F, Caram, José A, Echeverría, Gustavo. A, Piro, Oscar E, Gennaro, Ana. M, Mirífico, María. V

“…Isatin in a solution of dry N,N-dimethylformamide/NaClO4 is electroreduced in the presence of CH3I. N-methylisatin (NMI) is obtained in quantitative molar…”
Get full text

Aromatic amine N-oxide organometallic compounds: searching for prospective agents against infectious diseases by Rodríguez Arce, Esteban, Mosquillo, M Florencia, Pérez-Díaz, Leticia, Echeverría, Gustavo A, Piro, Oscar E, Merlino, Alicia, Coitiño, E Laura, Maríngolo Ribeiro, Camila, Leite, Clarice Q F, Pavan, Fernando R, Otero, Lucía, Gambino, Dinorah

“…In search of prospective agents against infectious diseases, 1,1'-bis(diphenylphosphino)ferrocene pyridine-2-thiolato-1-oxide M(ii) hexafluorophosphate…”
Get more information

Optimization of Antitrypanosomatid Agents: Identification of Nonmutagenic Drug Candidates with in Vivo Activity by Álvarez, Guzmán, Varela, Javier, Márquez, Pablo, Gabay, Martín, Arias Rivas, Carmen Elena, Cuchilla, Karina, Echeverría, Gustavo A, Piro, Oscar E, Chorilli, Marlus, Leal, Sandra M, Escobar, Patricia, Serna, Elva, Torres, Susana, Yaluff, Gloria, Vera de Bilbao, Ninfa I, González, Mercedes, Cerecetto, Hugo

“…Chagas disease, caused by Trypanosoma cruzi parasite, was described thousands of years ago. Currently, it affects millions of people, mostly in Latin America,…”
Get full text

Antitumoral, Antihypertensive, Antimicrobial, and Antioxidant Effects of an Octanuclear Copper(II)-Telmisartan Complex with an Hydrophobic Nanometer Hole by Islas, María S, Martínez Medina, Juan J, López Tévez, Libertad L, Rojo, Teófilo, Lezama, Luis, Griera Merino, Mercedes, Calleros, Laura, Cortes, María A, Rodriguez Puyol, Manuel, Echeverría, Gustavo A, Piro, Oscar E, Ferrer, Evelina G, Williams, Patricia A. M

“…A new Cu(II) complex with the antihypertensive drug telmisartan, [Cu8Tlm16]·24H2O (CuTlm), was synthesized and characterized by elemental analysis and…”
Get full text

Synthesis, Experimental and Theoretical Study of Azidochromones by Narváez-Ordoñez, Ena G, Pabón-Carcelén, Kevin A, Zurita-Saltos, Daniel A, Bonilla-Valladares, Pablo M, Yánez-Darquea, Trosky G, Ramos-Guerrero, Luis A, Ulic, Sonia E, Jios, Jorge L, Echeverría, Gustavo A, Piro, Oscar E, Langer, Peter, Alcívar-León, Christian D, Heredia-Moya, Jorge

“…A series of 2-(haloalkyl)-3-azidomethyl and 6-azido chromones has been synthetized, characterized and studied by theoretical (DFT calculations) and…”
Get full text

Crystal Structure, Hirshfeld Surface Analysis, and Biological Activities of Schiff-Base Derivatives of 4‑Aminoantipyrine by Aguilar-Llanos, Esteban, Carrera-Pacheco, Saskya E., González-Pastor, Rebeca, Zúñiga-Miranda, Johana, Rodríguez-Pólit, Cristina, Mayorga-Ramos, Arianna, Carrillo-Naranjo, Oscar, Guamán, Linda P., Romero-Benavides, Juan Carlos, Cevallos-Morillo, Carlos, Echeverría, Gustavo A., Piro, Oscar E., Alcívar-León, Christian D., Heredia-Moya, Jorge

“…Eight Schiff bases, synthesized by the reaction of 4-aminoantipyrine with different cinnamaldehydes, were studied in the solid state by using vibrational…”
Get full text

Effect of Terminal Hydroxy Groups on the Structural Properties of Acyl Thioureas by Nossa González, Diana Lisseth, Gómez Castaño, Arles Javanny, Echeverria, Gustavo A, Piro, Oscar E, Saeed, Aamer, Erben, Mauricio Federico

“…The 1-acyl thiourea family [R1C(O)NHC(S)NR2R3] exhibits the flexibility to incorporate a wide variety of substituents into their structure. The structural…”
Get full text

Synthesis, Structure, and Biological Assays of Novel Trifluoromethyldiazepine–Metal Complexes by Rocha, Mariana, Echeverría, Gustavo A, Piro, Oscar E, Jios, Jorge J, Molina, Rocío D I, Arena, Mario E, Ulic, Sonia E, Gil, Diego M

“…A new series of CuII, NiII, CoII, and MnIII complexes have been synthesised from the…”
Get full text

Conformational Transferability of the Sulfenyl Carbonyl Group −SC(O)– in Cyclic Thioesters by Dugarte, Nahir Y, Erben, Mauricio F, Hey-Hawkins, Evamarie, Lönnecke, Peter, Stadlbauer, Sven, Ge, Mao-Fa, Li, Yao, Piro, Oscar E, Echeverría, Gustavo A, Della Védova, Carlos O

“…The molecular and crystal structure of two dithiolactones (formally dimers of ε-caprothiolactone and ω-hexadecathiolactone) have been determined by X-ray…”
Get full text

Improving the antidepressant action and the bioavailability of sertraline by co-crystallization with coumarin 3-carboxylate. Structural determination by Escudero, Graciela E., Laino, Carlos H., Echeverría, Gustavo A., Piro, Oscar E., Martini, Nancy, Rodríguez, Ailén N., Martínez Medina, Juan J., López Tévez, Libertad L., Ferrer, Evelina G., Williams, Patricia A.M.

“…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…”
Get full text

Dental Unit Waterlines in Quito and Caracas Contaminated with Nontuberculous Mycobacteria: A Potential Health Risk in Dental Practice by Castellano Realpe, Orlando J, Gutiérrez, Johanna C, Sierra, Deisy A, Pazmiño Martínez, Lourdes A, Prado Palacios, Yrneh Y, Echeverría, Gustavo, de Waard, Jacobus H

“…Three cases of severe odontogenic infections due to nontuberculous mycobacteria (NTM) in Venezuela that were directly associated with dental procedures and the…”
Get full text

Oxidovanadium(IV) and dioxidovanadium(V) complexes of tridentate salicylaldehyde semicarbazones: Searching for prospective antitrypanosomal agents by Fernández, Mariana, Becco, Lorena, Correia, Isabel, Benítez, Julio, Piro, Oscar E., Echeverria, Gustavo A., Medeiros, Andrea, Comini, Marcelo, Lavaggi, María Laura, González, Mercedes, Cerecetto, Hugo, Moreno, Virtudes, Pessoa, Joao Costa, Garat, Beatriz, Gambino, Dinorah

“…As a contribution to the identification of the relevant species for biological activity and the understanding of structure–activity relationships of…”
Get full text

Crystal and molecular structure and spectroscopic behavior of isotypic synthetic analogs of the oxalate minerals stepanovite and zhemchuzhnikovite by Piro, Oscar E., Echeverría, Gustavo A., González-Baró, Ana C., Baran, Enrique J.

“…The crystal structure of synthetic stepanovite, Na[Mg(H 2 O) 6 ][Fe(C 2 O 4 ) 3 ]·3H 2 O, and zhemchuzhnikovite, Na[Mg(H 2 O) 6 ][Al 0.55 Fe 0.45 (C 2 O 4 ) 3…”
Get full text

High Prevalence of Prototheca bovis Infection in Dairy Cattle with Chronic Mastitis in Ecuador by Huilca-Ibarra, María P, Vasco-Julio, David, Ledesma, Yanua, Guerrero-Freire, Salome, Zurita, Jeannete, Castillejo, Pablo, Barceló Blasco, Francisco, Yanez, Lisseth, Changoluisa, Darwin, Echeverría, Gustavo, Bastidas-Caldes, Carlos, Waard, Jacobus H de

“…The genus , a unicellular, non-photosynthetic, yeast-like microalgae, is a pathogen of concern for the dairy industry. It causes bovine mastitis that currently…”
Get full text

Ethyl Acetate: X-ray, Solvent and Computed Structures by Boese, A. Daniel, Kirchner, Michael, Echeverria, Gustavo A., Boese, Roland

“…Ethyl acetate (ethyl ethanoate) was crystallized in situ and the crystal structure was determined. In the solid, the molecule is flat with trans conformation…”
Get full text

Crystal structure, spectroscopic characterization and Hirshfeld surface analysis of aquadichlorido{ N -[(pyridin-2-yl)methylidene]aniline}copper(II) monohydrate by Molano, Miguel F., Lorett Velasquez, Vaneza P., Erben, Mauricio F., Nossa González, Diana L., Loaiza, Alix E., Echeverría, Gustavo A., Piro, Oscar E., Tobón, Yeny A., Ben Tayeb, Karima, Gómez Castaño, Jovanny A.

“…The reaction of N -phenyl-1-(pyridin-2-yl)methanimine with copper chloride dihydrate produced the title neutral complex, [CuCl 2 (C 12 H 10 N 2 )(H 2 O)]·H 2…”
Get full text

The Development of a Multiplex PCR Assay for Fast and Cost-Effective Identification of the Five Most Significant Pathogenic Prototheca Species by Vasco-Julio, David, Huilca-Ibarra, María, Ledesma, Yanua, Echeverria, Gustavo, Guerrero-Freire, Salome, Jagielski, Tomasz, Bastidas-Caldes, Carlos, de Waard, Jacobus H.

“…A multiplex PCR system (m-PCR) has been developed to accurately differentiate the five most important pathogenic Prototheca species, including the three…”
Get full text

Serological evidence of Coxiella burnetii infection in cattle and farm workers: is Q fever an underreported zoonotic disease in Ecuador? by Echeverría, Gustavo, Reyna-Bello, Armando, Minda-Aluisa, Elizabeth, Celi-Erazo, Maritza, Olmedo, Lisbeth, García, Herakles A, Garcia-Bereguiain, Miguel Angel, de Waard, Jacobus H

“…Q fever is an underreported zoonotic disease of cattle and men in most countries of the world. Very little information about the prevalence of infection in…”
Get full text