Preparação e caracterização de derivados da 8-hidroxiquinolina e avaliação de suas atividades leishmanicidas utilizando a espécie Leishmania (Leishmania) amazonensis
Quinoline core is present in several biologically active substances. According to the literature 8-hydroxyquinoline has presented significant leishmanicidal activity against promastigote and amastigote forms of three species of Leishmania, including Leishmania (L.) amazonensis. Drugs used in the tre...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Brasil |
| Institución: | Universidade Federal de São Paulo (UNIFESP) |
| Repositorio: | Repositório Institucional da UNIFESP |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.unifesp.br:11600/47018 |
| Acceso en línea: | https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=3795076 http://repositorio.unifesp.br/handle/11600/47018 |
| Access Level: | acceso abierto |
| Palabra clave: | Hydroxyquinoline Functional group transformations Quinoline derivatives Leishmania (Leishmania) amazonensis Leishmanicidal activity Hidroxiquinolina Transformações de grupos funcionais Derivados quinolínicos Atividade leishmanicida |
| Sumario: | Quinoline core is present in several biologically active substances. According to the literature 8-hydroxyquinoline has presented significant leishmanicidal activity against promastigote and amastigote forms of three species of Leishmania, including Leishmania (L.) amazonensis. Drugs used in the treatment of leishmaniasis have presented limitations such as, low efficiency and high toxicity, making necessary the searching for novel bioactive compounds. In this context, twenty-two compounds were evaluated against promastigote form of Leishmania (Leishmania) amazonensis, including three commercially available 8-hydroxyquinoline compounds and nineteen derivatives obtained through iodination, alkylation, and acylation reactions. The results of effective concentration 50% (EC50) obtained for the substances were compared with the EC50 value obtained for the amphotericin B, used as standard and, currently, employed in the treatment of leishmaniasis. The EC50 value obtained for 8-hydroxyquinoline was compared with the value described in the literature. Additionally, all compounds evaluated in this study showed leishmanicidal action with EC50 values ? 9.53 µg/mL, being considered biologically actives against promastigote form of L. (L.) amazonensis. |
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