Browsing by Author "Sobarzo Sánchez, Eduardo"
Now showing items 1-17 of 17
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Sobarzo Sánchez, Eduardo; Olea Azar, Claudio; Alarcón, Jaime; Opazo, Lucía; Cassels Niven, Bruce (2003)The electrochemical behavior of two representative 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-ones was determined using cyclic voltammetry in DMSO as solvent and rationalized by quantum chemical calculations using ab initio ...
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Sobarzo Sánchez, Eduardo; De la Fuente, Julio; Quezada, Elias; Castedo, Luis (2006)The anabaseine derivatives 6-methoxy-7-hydroxy-1-(pyridin-3-yl)-3,4- dihydroisoquinoline, 6,7-dimethoxy-1-(pyridin-3-yl)-1,2,3,4- tetrahydroisoqumoline and 6,7-dimethoxy-1-(piperidin-3-yl)-1,2,3,4- tetrahydroisoquinoline ...
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Sobarzo Sánchez, Eduardo; Fuente, J. de la; Quezada, E.; Castedo, Luis (JOHN WILEY & SONS LTD, 2006-12)The anabaseine derivatives 6-methoxy-7-hydroxy-1-(pyridin-3-yl)-3,4-dihydroisoquinoline, 6,7-dimethoxyl-(pyridin-3-yl)-1,2,3,4-tetrahydroisoquinoline and 6,7-dimethoxy-1-(piperidin-3-yl)-1,2,3,4-tetrahydroisoquino- line ...
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Sobarzo Sánchez, Eduardo; Cassels Niven, Bruce; Jullian Matthaei, Carolina; Castedo, Luis (2003)The oxoisoaporphines 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 2,3-dihydro-5-methoxy-7H-dibenzo [de,h] quinolin-7-one, 5-methoxy-6-hydroxy-2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 5,6-dimethoxy-2,3-dihydro-7H-dibenz ...
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Pérez Cruz, Fernanda; Aguilera Venegas, Benjamín; Lapier, Michel; Sobarzo Sánchez, Eduardo; Uriarte Villares, Eugenio; Olea Azar, Claudio (2013)A new nitrooxoisoaporphine derivative was synthetized and characterized by cyclic voltammetry and electron spin resonance. Its aqueous solubility was improved by complexes formation with β-cyclodextrin, heptakis(2,6-di-O- ...
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Pérez Cruz, Fernanda; Aguilera Venegas, Benjamín; Lapier, Michel; Sobarzo Sánchez, Eduardo; Uriarte Villares, Eugenio; Olea Azar, Claudio (Elsevier, 2012-10-26)A new nitrooxoisoaporphine derivative was synthetized and characterized by cyclic voltammetry and electron spin resonance. Its aqueous solubility was improved by complexes formation with b-cyclodextrin, heptakis(2,6-di ...
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Folch Cano, Christian; Olea Azar, Claudio; Sobarzo Sánchez, Eduardo; Alvarez-Lorenzo, Carmen; Concheiro, Angel; Otero, Francisco; Jullian Matthaei, Carolina (2011)The physicochemical properties of 4-hydroxy-7-methoxy-3-phenyl-2H-chromen- 2-one (4HC) and β-cyclodextrins (CDs) inclusion complexes were investigated. The phase solubility profile of 4HC with β-cyclodextrin derivatives ...
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Sobarzo Sánchez, Eduardo; Saitz Barría, Claudio; Jullian Matthaei, Carolina; Cassels Niven, Bruce (MARCEL DEKKER INC, 2002)The abundant aporphine alkaloid (S)-(+)-boldine (1) was selectively nitrosated with sodium nitrite in acetic acid affording 8-nitrosoboldine (2) which was hydrogenated catalytically to give 8-aminoboldine (3). The latter ...
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Sobarzo Sánchez, Eduardo; Cassels Niven, Bruce; Saitz Barría, Claudio; Jullian Matthaei, Carolina (JOHN WILEY & SONS LTD, 2001-06)The novel heterocycles 1,11-dimethoxy-2-hydroxy-6-methyloxazolo[4,5-k]-5,6,6a,7-tetrahydro-4H-dibenzo [de,g]quinoline, 1,12-dimethoxy-2-hydroxy-6-methyl-9-phenyl-10H-oxazin[5,6-k]-5,6,6a,7-tetrahydro-4H-dibenzo ...
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Fuente, J. de la; Neira Pacheco, Verónica Alejandra; Saitz Barría, Claudio; Jullian Matthaei, Carolina; Sobarzo Sánchez, Eduardo (AMER CHEMICAL SOC, 2005-07-07)Photoreduction by amines of oxoisoaporphine dyes occurs via a stepwise mechanism of electron-proton electron transfer that leads to the metastable N-hydrogen oxoisoaporphine anion. During photoreduction that occurs from ...
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De la Fuente, Julio; Aliaga, Christian; Poblete, Cristian; Zapata, Gerald; Jullian Matthaei, Carolina; Saitz Barría, Claudio; Cañete, Alvaro; Kciuk, Gabriel; Sobarzo Sánchez, Eduardo; Bobrowski, Krzysztof (2009)Photoreduction of oxoisoaporphine (OIA) (l-aza-benzo-[de]anthracen-7-one) and its 5-methoxy (5-MeOOIA) derivative by selected amines (two non-a-hydrogen-donating amines (l,4-diaza[2.2.2]-bicyclooctane (DABCO) and ...
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Hidalgo, María E.; Alarcón, Myriam G.; Ojeda, Juan R.; Fernández, Ernesto C.; Sobarzo Sánchez, Eduardo; Fuente, Julio de la (Sociedade Brasileira de Quimica, 2010)The aim of this study was to determine the influence of the substituent groups on the photostability of eight boldine derivatives, including some oxazole and oxazinone derivatives, in order to increase the sunscreen ...
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Sobarzo Sánchez, Eduardo; Castedo, Luis; Fuente, Julio R. de la (SPRINGER/PLENUM PUBLISHERS, 2006-10)5,6-Dimethoxy-2,3-dihydro-7H-dibenzo[de,h] quinolin-7-one has been synthesized by cyclization of phenylethylaminophtalides with polyphosphoric acid and characterized by X-ray diffraction and NMR assignments. A theoretical ...
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Sobarzo Sánchez, Eduardo; Castedo, Luis; Fuente, J. de la (SPRINGER/PLENUM PUBLISHERS, 2006-10)5,6-Dimethoxy-2,3-dihydro-7H-dibenzo[de,h] quinolin-7-one has been synthesized by cyclization of phenylethylaminophtalides with polyphosphoric acid and characterized by X-ray diffraction and NMR assignments. A theoretical ...
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Sobarzo Sánchez, Eduardo; Fuente, Julio de la; Castedo, Luis (2005)The new oxoisoaporphines 7H-dibenzo[de,h]quinolin-7-one, 5-methoxy-7H-dibenzo[de,h]quinolin-7-one, 5-methoxy-6-hydroxy-7H-dibenzo[de,h] quinolin-7-one, 5-hydroxy-7H-dibenzo[de,h]quinolin-7-one and 5-methoxy-6H-dibenzo[de ...
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Fuente, J. de la; Kciuk, G.; Sobarzo Sánchez, Eduardo; Bobrowski, Krzysztof (AMER CHEMICAL SOC, 2008-10-16)The absorption-spectral and kinetic behavior of radical ions and triplet states of two oxoisoaporphine derivatives, 2,3-dihydrooxoisoaporphine (2,3-DHOA) and 5-methoxy-2,3-dihydrooxoisoaporphine (5-MeO-2,3-DHOA), have been ...
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Fuente, J. de la; Jullian Matthaei, Carolina; Saitz Barría, Claudio; Neira Pacheco, Verónica Alejandra; Poblete, Oscar.; Sobarzo Sánchez, Eduardo (AMER CHEMICAL SOC, 2005-10-28)Photoreduction of oxoisoaporphine dyes occurs via a stepwise mechanism of electron-protonelectron transfer that leads to the N-hydrogen oxoisoaporphine anion. When triethylamine, TEA, was used as the electron donor in ...