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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Investigação química e farmacológica dos constituintes químicos de Acnistus arborescens / Investigation chemical and pharmacological of chemical constituents of tamed Acnistus arborescens

Batista, Pedro Henrique Jatai January 2016 (has links)
BATISTA, Pedro Henrique Jatai. Investigação Química e Farmacológica dos Constituintes Químicos de Acnistus arborescens. 2016. 142 f. Dissertação (Mestrado em Química)-Universidade Federal do Ceará, Fortaleza, 2016. / Submitted by Aline Mendes (alinemendes.ufc@gmail.com) on 2017-01-09T21:35:34Z No. of bitstreams: 1 2016_dis_phjbatista.pdf: 9646156 bytes, checksum: 78d6ca3cede64ba7e5b92ae34ad63350 (MD5) / Approved for entry into archive by Jairo Viana (jairo@ufc.br) on 2017-01-11T17:58:55Z (GMT) No. of bitstreams: 1 2016_dis_phjbatista.pdf: 9646156 bytes, checksum: 78d6ca3cede64ba7e5b92ae34ad63350 (MD5) / Made available in DSpace on 2017-01-11T17:58:55Z (GMT). No. of bitstreams: 1 2016_dis_phjbatista.pdf: 9646156 bytes, checksum: 78d6ca3cede64ba7e5b92ae34ad63350 (MD5) Previous issue date: 2016 / This work describes the results of the chemical and pharmacological investigation of the ethanol and acetone extracts of Acnistus arborescens leaves grown in the Center for Studies and Research in Urban Agriculture (NEPAU), Department of Agronomy, Federal University of Ceará (UFC). The compounds were isolated by classic chromatography, and high performance chromatography liquid, and their structures were established by spectrometric techniques such as HRMS, IR and 1D and 2D NMR, and comparison with data available in the literature. In this work the pharmacological activities of the isolated compounds also are described. In addition the structural modification of the major compound in order to enhance its therapeutic properties, also is described. Thus, were obtained seven natural withanolides, of which four are unknown, eight reaction products, and the development of a nanoparticulate system -cyclodextrin-withanolide. / Este trabalho descreve os resultados obtidos com a investigação química e farmacológica dos extratos etanólico e acetona das folhas de Acnistus arborescens cultivada no Núcleo de Estudos e Pesquisa em Agricultura Urbana (NEPAU) do Departamento de Agronomia da Universidade Federal do Ceará (UFC). As substâncias foram isoladas por meio de técnicas cromatográficas clássicas e de alta eficiência, e suas estruturas foram determinadas por meio de técnicas espectrométricas como EMAR, IV e RMN 1D e 2D, além de comparação com dados disponíveis na literatura. Este trabalho ainda descreve as atividades farmacológicas inerentes a esses metabólitos e a modificação estrutural do composto majoritário a fim de potencializar suas propriedades terapêuticas. Desta forma, obteve-se sete vitanolidos naturais, sendo quatro inéditos, e oito produtos de reação, bem como o desenvolvimento de um sistema de nanopartículas de -ciclodextrina-vitanolido.

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