Enecarbamate
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Síntese e avaliação preliminar da atividade antinociceptiva de novas isoxazolil-aril-hidrazonas
New 2-isoxazoline aldehydes were synthesized, in good yields, from cycloadduct of the 1,3-dipolar cycloaddition reaction between endocyclic enecarbamate and carboethoxyformonitrile oxide (CEFNO). Condensation of these 2-isoxazoline aldehydes with several phenyl-hydrazines produced new isoxazolyl-aryl-hydrazones, which showed low toxicity and excellent antino
Química Nova. Publicado em: 2011
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2. Sintese total da (-)-aza-isoaltolactona / Total synthesis of (-)-aza-isoaltholactone
Natural products are a rich source of medicinal compounds, and have also inspired the design of non-natural product of relevant pharmaceutical importance. The structure-activity relationship in natural product are an interesting area for research. In this work, we describe the synthesis of (-)-aza-isoaltholactone, an analogous of the (-)-isoaltolactone. The
Publicado em: 2008
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3. SÃntese assimÃtrica de 3-carboxamidas enantiomericamente puras e de hidrazidas e arilhidrazonas, derivadas do novo heterociclo 7-(benzoil)- 2-isoxazolina[5,4-b] pirrolidina. AvaliaÃÃo das atividades biolÃgicas
In our previous studies, aza-bicyclic 2-isoxazolines were obtained, such as, 2- isoxazoline[5,4-b] piperidine and 2-isoxazoline[5,4-b] pyrrolidine. N-(benzoyl)-amides and, derived from these heterocycles, showed promising biological activity, (anti-inflammatory and toxicity). Compounds containing hydrazide and hydrazone functionalities are described in the l
Publicado em: 2008
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4. Sintese de um analogo ciclico da esfingosina / Synthesis of sphingosine of sphingosine cyclic analogous
Sphingosine are natural compounds that bear multiple known biological activities. The sphingosine molecule is representative of this class of biological compounds. The present study is related to the synthesis of a new cyclic analogue of sphingosine. The first part of this dissertation was focused on the synthesis of the hydroxy lactol F. The synthesis began
Publicado em: 2008
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5. SÃntese e avaliaÃÃo do potencial biolÃgico de novos derivados N-fenacilados do aza-biciclo pirrolidino [3,2-d] isoxazolina
Recently, our group of research had been gotten N-(benzoyl)-pyrrolidine[3,2-d]-2- isoxazolines derivatives 40, by 1,3-dipolar cycloaddition of five membered endociclic enecarbamates and enamides, with excellent biological activities. Due to this fact, we intended the obtention of the derivatives N-(fenacyl)-pyrrolidine[3,2-d]-2-isoxazolines 41, using the aza
Publicado em: 2005
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6. Use of endocyclic enecarbamates in the synthesis of azanucleosides / Utilização de enecarbamatos endociclicos na sintese de azanucleosideos
Nos últimos anos existe um grande interesse na obtenção de nucleosídeos e derivados estruturalmente relacionados em virtude do amplo espectro de atividades biológicas apresentadas por essa classe de compostos. Diversos tipos de análogos apresentando as mais diversas alterações estruturais têm sido relatados, entre os quais os azanucleosídeos, onde
Publicado em: 2005
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7. Estudo da reação de arilação de Heck de enecarbamatos, enamidas e enoleteres endociclicos utilizando sais de diazonio
The Heck arylation of olefins with aryltriflates and arylhalides is a well-established synthetic methodology for C-C bond formation. The Heck arylation employing diazonium salts (Heck-Matsuda reaction) is a much less explored methodology but offers a number of advantages over the traditional Heck protocol. These advantages comprise its mildness, shorter reac
Publicado em: 2003