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A 100 años del Parque José Domingo Gómez Rojas: su restauración o su muerte

Pavez Reyes, María Isabel (2007-06)

Al cumplirse 100 años del Parque J.D.Gómez Rojas, se argumenta las razones para su restauración en la perspectiva del Bicentenario de la Independencia de Chile....

10 años de multifondos : desempeño de las Administradoras de Fondos de Pensiones en Chile

Chinchón Barrera, Esteban Javier (2013-01)

1,2,4-Triazine N-oxide derivatives: Studies as potential hypoxic cytotoxins. Part III

Cerecetto, Hugo;González, M.;Risso, Mariela;Saenza, P.;Olea Azar, Claudio;Bruno, A. M.;Azqueta, Amaia;De Cerain, A. L.;Monge, A. (2004-05)

New 5-(2-arylethenyl)-1,2,4-triazine N-oxide and N,N'-dioxide derivatives were synthesized in order to obtain compounds as selective hypoxic cell cytotoxins. The desired products were obtained when the 5-methyl....

( + )-1-(2,5-Dimethoxy+ethylthlophenyl )-2-aminopropane (ALEPH-2), a novel putative anxiolytic agent lacking affinity for benzodiazepine sites and serotonin-1A receptors

Reyes-Parada, Miguel;Scorza, Cecilia;Romero, Verónica;Silveira, Rodolfo;Medina, Jorge H.;Andrus, Danice;Nichols, David E.;Cassels, Bruce K. (1996-05-28)

Serotonergic behavioral responses, efTects on motor activity and core temperature, and binding properties of the novel putative anxiolytic amphe!amine derivative (± )1-(2,5-dimethoxy-4-ethylthlophenyl)- 2-a....

13C-NMR ANO THEORETICAL STUOIES OF INTERNAL ROTATION IN METHYLATEO ANILlNES

Zapata Torres, Gerald;Parra-Mouchet, Julia;Cassels, Bruce K. (1997-08-01)

The conformational properties of ten ring-methylated N-methyl- and N,Ndimethylanilines have been studied using 13C-NMR chemical shifts and spin-Iattice relaxation times in CDCI3, and semi-empírical (AM1) quan....

13C-NMR SPECTRA OF AZAFLUORENONES

Cassels, Bruce K.;Tadic, Dragana;Laprévote, Olivier (1988-09-22)

The 13C-nmr chemical shifts of onychine (l-methyl4-aza8uoren-9-one) [l] were assigned with the aid ofheternnuclear 2D-nmr spectraand these results were used to interpret the 13C nmr spectra of several other s....

13- EPI-NEOCLERODANES FROM BACCHARIS MARGINALIS

San Martín, Aurelio;Astudillo, Luis;Gutiérrez, Margarita;Chamy, María Cristina;Orejarena, Silvia;Rivera, Patricio;Vergara, Karen (2010)

In addition to the known diterpenes, desoxyarticulin and dihydrotucumanoic acid, a new neoclerodane diterpene was isolated from Baccharis marginalis. The structures of the compounds were elucidated by spectrosc....

1,4-Dihydropyridines: Reactivity of nitrosoaryl and nitroaryl derivatives with alkylperoxyl radicals and ABTS radical cation

Valenzuela, V.;Santander, P.;Camargo, C.;Squella, J. A.;López Alarcón, Camilo Ignacio;Núñez Vergara, Luis J. (2004-07)

In the present paper, a direct quenching of radical species by a number of synthesized nitrosoaryl 1,4-dihydropyridines and their parent nitroaryl 1,4-dihydropyridines was determined in aqueous media at pH 7.4.....

14-helical folding in a cyclobutane-containing beta-tetrapeptide

Izquierdo, S.;Kogan, M.;Parella, T.;Moglioni, A. G.;Branchadell, V.;Giralt, Ernest;Ortuño, R. M. (2004-07-23)

The efficient synthesis of tetrapeptide 5 containing, in alternation, cyclobutane and beta-alanine residues is described. NMR experiments both at low temperature in CDCl3 and at 298 K in DMSOd(6) solutions show....

167º Aniversario de la U. de Chile: "Una Educación Superior Pública de Calidad para que seamos igualmente libres"

Pérez Vera, Víctor (2009-11-19)

Discurso del Rector Víctor Pérez Vera en la Ceremonia Oficial del 167º Aniversario de la Universidad de Chile, pronunciado el jueves 19 de noviembre de 2009, en el Salón de Honor de Casa Central ante la comunid....

16S rDNA-based analysis of dominant bacterial populations associated with early life stages of coho salmon (Oncorhynchus kisutch)

Romero, Jaime;Navarrete, Paola (2006-05)

In this study, we used a 16S rDNA-based approach to determine bacterial populations associated with coho salmon (Oncorhynchus kisutch) in its early life stages, highlighting dominant bacteria in the gastrointes....

17-beta-Estradiol upregulates COX-2 in the rat oviduct

Pérez Martínez, S.;Hermoso Ramello, Marcela;Farina, M.;Ribeiro, M. L.;Rapanelli, M.;Espinosa, M.;Villalón, M.;Franchi, A. (2006-09)

We investigated the regulation of cyclooxygenase-2 (COX-2) by 17-beta-estradiol (E-2) in the rat oviduct. We observed that COX-2 is expressed mainly in proestrous and estrous stages, periods under estrogenic in....

The 1877–1878 El Niño episode: associated impacts in South America

Aceituno Gutiérrez, Patricio;Prieto, María del Rosario;Solari, María Eugenia;Martínez, Alejandra;Poveda, Germán;Falvey, Mark (2009)

At times when attention on climate issues is strongly focused on the assessment of potential impacts of future climate change due to the intensification of the planetary greenhouse effect, it is perhaps perti....

(1 alpha, 12 alpha)-Ethyl 15-ethoxy-4-hydroxy-2-oxo-9-oxatetracyclo[10.2.2.0(1,10).0(3,8)]hexadeca-4,6,8,13-tetraene-13-carboxylate

Heredia Moya, Jorge;Krohn, Karsten;Florke, Ulrich;Araya Maturana, R. (2006-09)

(E)-Ethyl 3-(4-oxo-4H-chromen-3-yl)acrylate reacts in a Domino reaction with ethyl vinyl ether via intermediates to give the title bridged compound, C20H22O6, and by-products. The conformation of the carboxylat....

1-benzoyl-2-(2-nitrophenyl)-1H-benzimidazole derivatives: A novel approach to the development of new HIV-1 reverse transcriptase inhibitors

Vásquez, David;Lagos González, Carlos F.;Mella Raipán, Jaime;González, Luis;Ebensperger, Roberto;Alvarez Figueroa, M. Javiera;Sáez, Edmundo;Pessoa, H.;Araya Secchi, Raúl;González Wong, Angel;Pérez-Acle, Tomás;Pessoa, D. (2007-12)

A novel approach to the development of anew class of HIV-1 RT inhibitors is reported. The 1-benzoyl-2-aryl-1H-benzimidazole series was designed as a combination of two previously reported active scaffolds, the ....

1-benzyl-1,2,3,4-tetrahydroisoquinolines. H-1 NMR conformational studies and rotational barriers

Iturriaga Vásquez, Patricio;Zapata Torres, Gerald;Caroli Rezende, Marcos;Cassels, Bruce K. (2004-03)

The conformational preferences of a series of 1-benzyl-1,2,3,4-tetrahydroisoquinolines (norlaudanosine and coclaurine analogues) were investigated with the aid of their H-1 NMR spectra and NOESY experiments, co....

1-ethyl-3-(4-hydroxy-3-methoxyphenyl)-6-methoxy-2-methylindan-5-ol

Alvarez Thon, Luis;Carrasco Altamirano, Héctor;Espinoza Catalán, Luis;Gallardo Araya, Claudio;Cardona, Wilson;Ibáñez, Andrés (2006-05)

Molecules in the title crystal structure, C20H24O4, are linked into chains of R-4(4)(8) rings along [010] and these chains are linked into sheets via weak C-H center dot center dot center dot pi(arene) interact....

+ 1 M Más 1 Media propuesta comunicacional para sitio web con contenidos generados por usuarios consumidores de los nuevos medios online de comunicación

Riquelme Yáñez, Daniela de Lourdes (2011)

2012, crecimiento potente pero con inflación

Carrasco Álvarez, Sergio Melitón (2012)

[2-(2-{Bis[2-(1H-imidazol-2-ylmethyl-eneamino)ethyl] amino} ethylimino-methyl) imidazolido] cobalt(III) bis(tetrafluoridoborate) monohydrate

Atria, Ana María;Corsini, Gino;Talamilla, Arlyn;Garland, María Teresa;Baggio, Ricardo (2008-12)

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