Now showing items 2509-2528 of 2801

    • Insuasty, B. A.; Torres, H.; Quiroga, J.; Abonía, R.; Rodríguez, R.; Nogeras, M.; Sánchez, A.; Saitz, C.; Alvarez, S. L.; Zacchino, S. A. (2006)
      The synthesis of a series of new benzimidazo[1,2-c]quinazolines starting from 2-nitrobenzaldehyde and o-phenylendiamine is described. The structure elucidation of the products is based on detailed NMR analysis of experiments ...
    • Insuasty, B. A.; Torres, H.; Quiroga, J.; Abonia, R.; Rodríguez, R.; Nogeras, N.; López Sánchez, Ángel R.; Saitz Barría, Claudio; Alvarez, S. L.; Zacchino, Susana (SOCIEDAD CHILENA DE QUIMICA, 2006-06)
      The synthesis of a series of new benzimidazo[1,2-c]quinazolines starting from 2-nitrobenzaldehyde and o-phenylendiamine is described. The structure elucidation of the products is based on detailed NMR analysis of experiments ...
    • Schmidt, Ricardo; Moya, Sergio A.; Aguirre, Pedro; Fuentealba, Mauricio; Leboschka, Markus; Sieger, Monika; Niemeyer, Mark; Kaim, Wolfgang (Verlag der Zeitschrift fur Naturforschung, 2011)
      Neutral tribromo(2-phenyl-1,8-naphthyridine)gold(III), AuBr 3(N-N), has been prepared by reaction of KAuBr4 with the ligand in CHCl3/C2H5OH and was characterized by 1H NMR spectroscopy and X-ray diffraction. The molecular ...
    • Hernández, Wilfredo; Paz, Juan; Vaisberg, Abraham; Spodine Spiridonova, Evgenia; Richter, Rainer; Beyer, Lothar (HINDAWI PUBLISHING CORPORATION, 2008)
      The palladium (II) bis-chelate Pd (L1-3)(2) and platinum (II) tetranuclear Pt-4(L-4)(4) complexes of benzaldehyde thiosemicarbazone derivatives have been synthesized, and characterized by elemental analysis and IR, FAB(+)-mass ...
    • Atria Salas, Ana María; Parada Aliste, José; Moreno, Yanko; Suarez, Sebastián; Baggio, Ricardo; Peña, Octavio (International Union of Crystallography, 2018)
      The title mononuclear Co-II complex, [Co(C5H7N6)(2)(C14H8O5)(2)(H2O)(2)]center dot 2H(2)O, has been synthesized and its crystal structure determined by X-ray diffraction. The complex crystallizes in the triclinic space ...
    • Pessoa Mahana, Hernán; González Lira, Christian; Fierro, Angélica; Zapata Torres, Gerald Amilcar; Pessoa Mahana, Carlos David; Ortiz Severin, Javiera; Iturriaga-Vásquez, Patricio; Reyes Parada, Miguel; Silva Matus, Paul; Saitz Barría, Claudio; Araya Maturana, Ramiro (Elsevier, 2013)
      A series of 3-(3-(4-(3-(1H-indol-3-yl)propyl)piperazin-1-yl)propyl)-1H-indole derivatives (3a–d and 5a– f) as homo- and hetero-bis-ligands, were synthesized and evaluated for in vitro affinity at the serotonin transporter ...
    • Pessoa Mahana, Hernán; Recabarren Gajardo, Gonzalo Iván; Temer, Jenny Fiedler; Zapata Torres, Gerald; Pessoa Mahana, Carlos David; Barría, Claudio Saitz; Araya Maturana, Ramiro (2012)
      A series of novel benzo[b]thiophen-2-yl-3-(4-arylpiperazin-1-yl)-propan-1- one derivatives 6a-f, 7a-f and their corresponding alcohols 8a-f were synthesized and evaluated for their affinity towards 5-HT 1A receptors. The ...
    • Pessoa Mahana, Hernán; Recabarren Gajardo, Gonzalo Iván; Fiedler Temer, Jenny; Zapata Torres, Gerald Amilcar; Pessoa Mahana, Carlos David; Saitz Barría, Claudio; Araya Maturana, Ramiro (2012)
      A series of novel benzobthiophen-2-yl-3-(4-arylpiperazin-1-yl)-propan-1-one derivatives 6a–f, 7a–f and their corresponding alcohols 8a–f were synthesized and evaluated for their affinity towards 5-HT1A receptors. The ...
    • Cerda Cavieres, Christopher David; Quiroz, Gabriel; Iturriaga-Vásquez, Patricio; Rodríguez Lavado, Julio; Alarcón Espósito, Jazmín; Saitz Barría, Claudio; Pessoa Mahana, Carlos D.; Chung, Hery; Araya Maturana, Ramiro; Mella Raipán, Jaime A.; Cabezas, David; Ojeda Gómez, Claudia; Reyes Parada, Miguel; Pessoa Mahana, Hernán (MDPI, 2020)
      A series of 27 compounds of general structure 2,3-dihydro-benzo[1,4]oxazin-4-yl)-2-{4-[3-(1H-3indolyl)-propyl]-1-piperazinyl}-ethanamides, Series I: 7(a-o) and (2-{4-[3-(1H-3-indolyl)-propyl]-1-piperazinyl}-acetylamine)- ...
    • Sandoval, Catalina; Arriagada, Franco; Fuente, Julio de la; Sánchez, Susana; Morales, Javier; Pizarro, Nancy; Nonell, Santi; Günther Sapunar, Germán (Sociedade Brasileira de Quimica, 2016)
      Glycolipids are biomolecules composed of a lipid chain (lipophilic) and a monosaccharide or oligosaccharide as hydrophilic group. Their chemical structure and biological role make them undoubtedly good candidates for a ...
    • Hernández, Wilfredo; Carrasco, Fernando; Vaisberg, Abraham; Spodine Spiridonova, Evgenia; Manzur, Jorge; Icker, Maik; Krautscheid, Harald; Beyer, Lothar (Hindawi, 2020)
      Eight new thiosemicarbazone derivatives, 6-(1-trifluoroethoxy)pyridine-3-carbaldehyde thiosemicarbazone (1), 6-(4 '-fluorophenyl)pyridine-3-carbaldehyde thiosemicarbazone (2), 5-chloro-pyridine-3-carbaldehyde thiosemicarbazone ...
    • Bellú, Sebastián; Hure, Estela; Trapé, Marcela; Trossero, Claudia; Molina, Gabriel; Drogo, Claudia; Williams, Patricia; Atria Salas, Ana María; Muñoz, Juan Carlos; Zacchino, Susana; Sortino, Maximiliano; Campagnoli, Darío; Rizzotto, Marcela (PERGAMON-ELSEVIER SCIENCE LTD, 2005-03-10)
      he reaction between sulfathiazole and cobalt(II) leads to a pink solid, [Co-II(ST)(2)(H2O)(4)] (1), which, after 7-10 days in the mother solution, transforms into red crystals of [Co-II(ST)(2)(H2O)(3)](n) (2) (ST = ...
    • Moya, S. A.; Vidal, M.; Abarca, G.; Martinez, C.; Guerchais, V.; Le Bozec, H.; Garland, María Teresa; Rodriguez, S.; Aguirre, P. (2010)
      The synthesis and characterization of new ruthenium(II) carbonyl complexes containing polypyridine and triphenylphosphine ligands is reported. Crystallographic information obtained for the trans-PPh3-[Ru(biq) (PPh3)2(CO)]Cl2 ...
    • García, Camilo; Villagra, Diego; Caruso, Francesco; Rossi, Miriam; Matsuhiro, Betty; Mendoza, Leonora; Aguirre, María J.; Isaacs, Mauricio (2009)
      The complex [FeII(Imz-phen)3](PF6)2, (Imz-phen = imidazolidine-[4,5-f]-1,10-phenanthroline) has been prepared and characterized using X-ray diffraction, UV–vis and IR spectroscopy, elemental analysis, fast atomic bombardment ...
    • Pessoa Mahana, Hernán; Araya Maturana, Ramiro; Saitz Barría, Claudio; Pessoa, D. (Bentham Science Publishers, Ltd, 2003)
      The present review discusses the synthetic strategies of new ligands exhibiting mainly 5-HT1A binding affinities. Specifically we focused our attention in the synthesis of compounds structurally telated to arylpiperazine, ...
    • Pastene, Edgar; Gómez, Maritza; Speisky Cosoy, Hernán; Núñez Vergara, Luis (SOC BRASILEIRA QUIMICA, 2009)
      An apparatus which allows the direct measurement of the antioxidant capacity of volatiles compounds emitted from some herbs and culinary spices is described. The device comprises: a sample chamber, a mixing chamber, a pump ...
    • Núñez Vergara, Luis; Álvarez Lueje, Alejandro; Sturm,; Sunkel,; Squella Serrano, Juan (Marcel Dekker Inc., 1998)
      A systematic study of a new series of 4-methyl-1,4-dihydropyridine derivatives by HPLC by both photodiode array and electrochemical detectors is reported. The optimum mobile phase was acetonitrile/0.05 M phosphate buffer ...
    • Pedreschi, Franco; Saavedra Gatica, Ilse Elizabeth; Bunger Timmermann, Andrea; Zuiliga, Rommy N.; Pedreschi, Romina; Chirinos, Rosana; Campos, David; Mariotti-Celis, María Salome (Elsevier, 2018-09)
      "Hallulla" is a highly consumed type of Chilean bread, which may contain considerable amounts of some Neo-Formed Contaminants (NFCs). The objective of this research was to study the effect of tara (Caesalpinia spinosa) pod ...
    • Vidal, René L.; Matus, Soledad; Bargsted, Leslie; Hetz Flores, Claudio (Elsevier Ltd, 2014)
      © 2014 Elsevier B.V. All rights reserved. The most prevalent neurodegenerative disorders involve protein misfolding and the aggregation of specific proteins. Autophagy is becoming an attractive target to treat neurodegenerative ...
    • Herrera Zelada, Nicolás Gabriel; Zúñiga Cuevas, Úrsula Almendra; Ramírez Reyes, Andrés Ignacio; Lavandero González, Sergio; Riquelme Meléndez, Jaime (Frontiers Media, 2021)
      Despite considerable improvements in the treatment of myocardial infarction, it is still a highly prevalent disease worldwide. Novel therapeutic strategies to limit infarct size are required to protect myocardial function ...