Browsing by Author "Pessoa Mahana, Hernán"
Now showing items 1-20 of 35
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Vásquez, David; Lagos González, Carlos F.; Mella Raipán, Jaime A.; González, Luis; Ebensperger González, Roberto; Alvarez Figueroa, M. Javiera; Sáez, Edmundo; Pessoa Mahana, Hernán; Araya Secchi, Raúl; González Wong, Angel; Pérez-Acle, Tomás; Pessoa, D. (SOC CHILENA QUIMICA, 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 benzimidazole ...
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Araya Maturana, Ramiro; Heredia Moya, Jorge; Pessoa Mahana, Hernán; Weiss López, Boris; Muñoz, J. C. (BLACKWELL MUNKSGAARD, 2005-04)The title compound, C12H7NO3, consists of a chromone moiety substituted in position 3 with an acrylonitrile group in a Z configuration. The two planar groups are twisted with respect to one another. The only significant ...
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Valderrama, Jaime A.; Pessoa Mahana, Hernán; Sarras, Gabriela; Tapia, Ricardo (1999)A synthesis of N-(2-nitrobenzyl)acetanilide (5) and (11) from 2- nitrobenzaldehyde and aromatic amines is reported. The reaction of amides (5) and (11) with iron in acetic acid-ethanol-water provided the corresponding 3- ...
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Weiss López, Boris; Saitz Barría, Claudio; Pessoa Mahana, Hernán; Valderrama, Jaime; Araya Maturana, Ramiro (2001)Activation parameters for the rotation around the methylene-nitrogen single bond found in a series of four 2,2'-disubstituted N-acetyl-N-phenylbenzylamines, dissolved in DMSO-d6, were measured employing the temperature ...
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Weiss López, Boris; Jullian Matthaei, Carolina; Saitz Barría, Claudio; Pessoa Mahana, Hernán; Valderrama, J.; Araya Maturana, Ramiro (SOCIEDAD CHILENA DE QUIMICA, 2001-09)Activation parameters for the rotation around the methylene-nitrogen single bond found in a series of four 2,2'-disubstituted N-acetyl-N-phenylbenzylamines, dissolved in DMSO-d(6), were measured employing the temperature ...
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Mella Raipán, Jaime A.; Lagos, Carlos F.; Recabarren Gajardo, Gonzalo Iván; Espinosa Bustos, Christian; Romero Parra, Javier; Pessoa Mahana, Hernán; Iturriaga-Vásquez, Patricio; Pessoa Mahana, Carlos David (2013)A series of novel 2-pyridylbenzimidazole derivatives was rationally designed and synthesized based on our previous studies on benzimidazole 14, a CB1 agonist used as a template for optimization. In the present series, 21 ...
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Espinosa Bustos, Christian; Lagos, Carlos F.; Romero Parra, Javier; Zárate, Ana M.; Mella Raipán, Jaime A.; Pessoa Mahana, Hernán; Recabarren Gajardo, Gonzalo Iván; Iturriaga-Vásquez, Patricio; Tapia, Ricardo A.; Pessoa Mahana, Carlos David (Wiley-VCH Verlag, 2015)© 2015 Wiley-VCH Verlag GmbH & Co. KGaA. A series of N-acyl-2,5-dimethoxyphenyl-1H-benzimidazoles were designed based on a CoMFA model for cannabinoid receptor type 1 (CB1) ligands. Compounds were synthesized and radioligand ...
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Araya Maturana, Ramiro; Delgado Castro, Tomás; Gárate, Mario; Ferreira Parker, Jorge; Pavani, Mario; Pessoa Mahana, Hernán; Cassels Niven, Bruce (Elsevier Science Ltd., 2002-01-29)Abstract—A set of structurally related compounds incorporating a carbonyl group in the ortho position withregard to a phenol function were tested against the TA3 mouse carcinoma cell line and its multidrug-resistant variant ...
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Araya Maturana, Ramiro; Heredia Moya, Jorge; Donoso Tauda, Oscar; Vera Castillo, Mario Francisco; Toledo Hernández, Jorge; Pavani, Mario; Pessoa Mahana, Hernán; Weiss López, Boris; Ferreira Parker, Jorge (NATURAL PRODUCTS INC, 2008)A set of structurally related compounds incorporating a chromone moiety as an essential component of their structures were tested against the TA3 mouse carcinoma cell line and its multidrug-resistant variant TA3-MTX-R. A ...
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Kosche Cárcamo, Johann Albert (Universidad de Chile, 2007)La depresión es un trastorno del estado anímico, que se manifiesta con pérdida de interés o del placer por vivir, sentimientos de culpa o baja autoestima, alteraciones del sueño, del apetito y baja capacidad de concentración ...
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González Lira, Christian Guillermo (Universidad de Chile, 2007)Las arilpiperazinas constituyen una familia de compuestos de interés en el ámbito neurofarmacológico principalmente por sus acciones ansiolíticas y antidepresivas, a través de interacciones con el receptor serotoninérgico ...
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Valenzuela Gutiérrez, Carla Daniela (Universidad de Chile, 2016)El presente trabajo de memoria informa sobre la preparación de dos familias de derivados indólicos polifuncionalizados: 3-(3-{4-[(aril-1-piperazinil)acetil]-1-piperazinil}propil)- 1H-indoles (Familia I) y 5-fluoro-3-(3 ...
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Pessoa Mahana, Hernán; Martínez Aranguiz, Gracia Karen; Araya Maturana, Ramiro; Pessoa, D. (TAYLOR & FRANCIS INC, 2005)The synthesis of new eight-membered cycle dibenzo[b,f][1,5]-diazocine-6(5H)-one derivatives 11, 12 was developed. The key step in this synthesis was the intramolecular cyclization of the amino aldehyde precursors 9,10 ...
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Araya Maturana, Ramiro; Gavin Sazatornil, J. A.; Heredia Moya, Jorge; Pessoa Mahana, Hernán; Weiss López, Boris (SOC BRASILEIRA QUIMICA, 2005-05)A systematic study about the long-range correlations observed in the HMBC spectra of a series of cis and trans 3-(4-oxo-4H-chromen-3-yl)-acrylic acid ethyl esters, and 5-hydroxy derivatives, was carried out. The results ...
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Araya Maturana, Ramiro; Gavín-Sazatornil, José A.; Heredia Moya, Jorge; Pessoa Mahana, Hernán; Weiss López, Boris (Sociedade Brasileira de Quimica, 2005)A systematic study about the long-range correlations observed in the HMBC spectra of a series of cis and trans 3-(4-oxo-4H-chromen-3-yl)-acrylic acid ethyl esters, and 5-hydroxy derivatives, was carried out. The results ...
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Dobado, Jose A.; Gómez-Tamayo, José C.; Calvo-Flores, Francisco G.; Martínez-García, Henar; Cardona, Wilson; Weiss López, Boris; Ramírez Rodríguez, Oney; Pessoa Mahana, Hernán; Araya Maturana, Ramiro (2011)A set of regioisomeric pairs of tricyclic hydroquinones, analogues of antitumor 9,10-dihydroxy-4,4-dimethyl-5,8-dihydroanthracen-1(4H)-one (1) and other derivatives, were synthesized and their regiochemistry and NMR spectra ...
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Fuente, J. de la; Jullian Matthaei, Carolina; Saitz Barría, Claudio; Sobarzo Sánchez, Eduardo; Neira Pacheco, Verónica Alejandra; González, C.; López, R.; Pessoa Mahana, Hernán (ROYAL SOC CHEMISTRY, 2004)Photoreduction of 5,6-dimethoxy-, 5-methoxy- and 2,3-dihydro-7H-dibenzo[de, h] quinolin-7-one (A) by tertiary amines in oxygen-free solutions generates long-lived semi-reduced metastable photoproducts, A - NH-, via a ...
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Cerda Cavieres, Christopher David (Universidad de Chile, 2008)La presente Memoria se orientó al estudio y caracterización electro-analítica de una serie de derivados N-(4-R-benzoil)-2-(2-nitrofenil)-1-H-benzimidazoles como sustratos de interés biológico. Los compuestos estudiados ...
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Olguín Sepúlveda, Leyla Viviana (Universidad de Chile, 2018)El presente trabajo de investigación informa sobre la preparación de dos familias de compuestos: cationes lipofílicos derivados del ácido cafeico y bromoésteres derivados de ácido cafeico como compuestos citotóxicos ...
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Pessoa Mahana, Hernán; Kosche Cárcamo, Johann; Ron Higuera, Nadia; Recabarren Gajardo, Gonzalo; Saitz Barría, Claudio; Araya Maturana, Ramiro; Pessoa Mahana, Carlos (2008)A novel series of 2-benzothiophenealkylpiperazine derivatives 11 (a-d) with potential affinity at 5-HT1A serotonin receptors have been synthesized via solvent-free, microwave-promoted Michael addition of benzo[b]thiophene ...