Browsing by Author "Cassels Niven, Bruce"
Now showing items 41-60 of 318
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Urzúa, Alejandro; Comin, J.; Cassels Niven, Bruce; Sánchez, E. (Universidad Técnica del Estado (Chile). Dirección de Investigaciones Científicas y Tecnológicas, 1978-01)De las cortezas de tronco de Laurelia sempervirens (R. et Pav.) TUL y de Laurelia philippiana. Looser fueron aislados e identificados los siguientes alcaloides: liriodenina (I),oxorantenina ( II ), ...
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Urzúa, A.; Cassels Niven, Bruce; Comin, J.; Sánchez, E. (Universidad de Santiago de Chile, 1978-01)De las cortezas de tronco de Laurelia sempervirens (R. et Pav.)Tul y de Laurelia philippiana Looser fueron aislados e identificados los siguientes alcaloide: liriodenina (I), oxonantenina (II),nornantenina (III), aterolina ...
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Urzúa, A.; Cassels Niven, Bruce (Elsevier , Science Ltd., 1970)Sophora tetraptera, sensu R,eiche, is the scientific name assigned to a southem Chilean tree known by the names pelú and pilopilo, which closely resembles the New Zealand species S. tetraptera J. Mill. and S. microphylla ...
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Acuña Castillo, Claudio; Scorza, Cecilia; Reyes Parada, Miguel; Cassels Niven, Bruce; Huidobro Toro, Juan Pablo (Elsevier Science Inc., 2000-06-06)To assess the pharmacodynamic profile of ALEPH-2, a phenylisopropylamine derivative with alleged anxiolytic and hallucinogenic properties, Xenopus laevis oocytes were microinjected with either of the rat cRNA for the ...
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Urzúa, Alejandro; Cassels Niven, Bruce (American Society of Pharmacognosy, 1977-10-03)
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Pérez, Edwin G.; Cassels Niven, Bruce (Elsevier, 2010)
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Tadic, Dragana; Percy Wannigama, G.; Cassels Niven, Bruce; Cavé, André (American Chemical Society, 1986-08-05)
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Urzúa, A.; Cassels Niven, Bruce (ELSEVIER, 1970-03-17)Sophora tetraptera sensu Reiehe seeds were examined for alkaloids. Cytisine, methyleytisine and matrine were isolated, and a fourth alkaloid was deteeted by TLC. The relative amounts of the three major alkaloids support ...
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Cassels Niven, Bruce (Natural Product Incorporation, 2019)Alkaloids of the Cactaceae have been studied for the last 120 years. The first half of that period provided the "classic" compounds, after which a large number of usually very similar analogs were isolated or determined ...
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Moroni, Mirko; Zwart, Ruud; Sher, Emanuele; Cassels Niven, Bruce; Bermúdez, Isabel (AMER SOC PHARMACOLOGY EXPERIMENTAL THERAPEUTICS, 2006-08)Alpha 4 and beta 2 nicotinic acetylcholine receptor ( nAChR) subunits expressed heterologously assemble into receptors with high (HS) and low (LS) sensitivity to acetylcholine (ACh); their relative proportions depend on ...
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Reyes Parada, Miguel; Iturriaga Vásquez, Patricio; Cassels Niven, Bruce (Frontiers Media, 2020)Amphetamine and its derivatives exhibit a wide range of pharmacological activities, including psychostimulant, hallucinogenic, entactogenic, anorectic, or antidepressant effects. The mechanisms of action underlying these ...
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Sepúlveda Boza, Silvia; Delhvi, Sualaheen; Cassels Niven, Bruce (Pergamon Press, 1989-09-06)The stem bark of Persea lingue afforded a new aryltetralin lignan, named lingueresinol, which was shown to be a positional isomer of epi-lyoniresinol.
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Sobarzo Sánchez, Eduardo; Cassels Niven, Bruce; Castedo, L. (GEORG THIEME, 2003-08-25)Several 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-ones and 7H-dibenzo[de,h]quinolin-7-ones were catalytically hydrogenated over PtO2 in acetic acid to afford 7-hydroxyquinolinc and quinolone derivatives with reduced benzene rings.
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Sobarzo Sánchez, Eduardo; Cassels Niven, Bruce; Castedo, Luis (Georg Thieme, 2003-08-25)Several 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-ones and 7H-dibenzo[de,h]quinolin-7-ones were catalytically hydrogenated over PtO2 in acetic acid to afford 7-hydroxyquinoline and quinolone derivatives with reduced benzene rings.
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Bustamante, Diego; Díaz Véliz, Gabriela; Paeile Jacquier, Carlos; Zapata-Torres, Gerald; Cassels Niven, Bruce (PERGAMON-ELSEVIER SCIENCE LTD, 2004-10)The analgesic effects of (+)- and (-)-amphetamine (AMPH), (+/-)-p-methoxyamphetamine (MA), (+/-)-N-methyl-p-methoxyamphetamine (MMA) and (+/-)-N-ethyl-p-methoxyamphetamine (EMA) were compared using two different algesimetric ...
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Duffau, Boris; Camargo Grandón, Rodrigo; Kogan Bocian, Marcelo; Fuentes Pérez, Edwar; Cassels Niven, Bruce (Oxford University Press, 2016)Use of unauthorized synthetic drugs is a serious, forensic, regulatory and public health issue. In this scenario, consumption of drug-impregnated blotters is very frequent. For decades, blotters have been generally impregnated ...
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Duffau, Boris; Camargo Grandón, Cristian; Cassels Niven, Bruce; Kogan Bocian, Marcelo; Fuentes, Edward (Akadémiai Kiadó, 2015)
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Análogos simplificados de alcaloides bisbencilisoquinolinicos como posibles relajantes musculares Iturriaga Vasquez, Patricio Ernesto (Universisdad de Chile, 2001)Los alcaloides coclaurina y tetrandrina (una coclaurina dimerica N-y O-metilada) son conocidos relajantes de la musculatura lisa vascular, cuya acción se atribuye en mayor a menor grado al blanqueo de canales de calcio ...
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Castro Castillo, Vicente; Suárez Rozas, Cristian; Castro Loiza, Natalia; Theoduloz, Cristina; Cassels Niven, Bruce (Elsevier, 2013)Anthraquinone derivatives are well-known antiproliferative compounds, and some are currently used in cancer chemotherapy. Some families of annulated anthraquinone analogs have also been examined for antiproliferative ...
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Cassels Niven, Bruce; Asencio, Marcelo (2011)The continued advance of HIV-AIDS makes the development of relatively inexpensive, freely accessible, and mechanistically more diverse antiviral therapies an urgent need. Natural products are, directly or indirectly, an ...