{"id":86183,"date":"2018-03-10T00:10:42","date_gmt":"2018-03-10T00:10:42","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/nuevos-furanoterpenos-y-saponinas-con-actividad-citotoxica-de-organismos-marinos\/"},"modified":"2018-03-10T00:10:42","modified_gmt":"2018-03-10T00:10:42","slug":"nuevos-furanoterpenos-y-saponinas-con-actividad-citotoxica-de-organismos-marinos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/nuevos-furanoterpenos-y-saponinas-con-actividad-citotoxica-de-organismos-marinos\/","title":{"rendered":"Nuevos furanoterpenos y saponinas con actividad citot\u00f3xica de organismos marinos"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Lenis Velasquez Luis Alberto <\/strong><\/h2>\n<p>En la presente memoria se realiz\u00f3 el estudio qu\u00edmico de los siguientes organismos marinos: spongia officinalis, aplysina cauliformis, pharyngodyction cauliflos, ritterella rete y pentamera calcigera. De estos, se logr\u00f3 el asilamiento de varios metabolitos y su elucidaci\u00f3n estructural mediante diversas t\u00e9cnicas espectrom\u00e9tricas. Tambi\u00e9n se llev\u00f3 a cabo la obtenci\u00f3n de diversos derivados y la determianci\u00f3n de la configuraci\u00f3n absoluta de los centros quirales de la gran mayor\u00eda de los compuestos aqu\u00ed descritos. con relaci\u00f3n a este apartado, fue posible aplicar un nuevo reactivo quiral utilizado en la determinaci\u00f3n de la congiuraci\u00f3n absoluta de alcoholes secundarios, el 9-ama. As\u00ed mismo, se describen las diferentes pruebas de actividad realizadas tanto en los extractos como en los productos aislados.  de esta forma se lograron determinar las estructuras de los siguientes compuestos pertenecientes a:  spongia officinalis: de esta esponja se aislaron los furnanoterpenos nitenin, dihidronitenin y el nuevo compuesto isonitenin, poseyendo nitenin actividad citot\u00f3xica.  aplysina cauliformis: de esta esponja se aislaron los derivados bromados de tirosin: los nuevos productos naturales (-)-aerothionin, caulifomin, 2,4-dibromo-3,3-dimetoxi-6-hidroxi-1,4-ciclohexadien-6-acetamida, as\u00ed como los metabolitos ya descritos anteriomente 2,4-dibromo-3,3-dietoxi-6-hidroxi-1,4-ciclohexadien-6-acetamida, 2,6-dibromo-4-acetamida-4-metoxi-2,5-ciclohexadienona, (-)-aeroplysinin y 3,5-dibromo-4-hidroxifenilacetamida, adem\u00e1s de adenosina.  pharyngodyction cauliflos: de este tunicado se aislaron el c2-a-d-manopiranosil-l-triptofano, prevemante aislado de la orina humana, y el nuevo compuesto denominado p-aminoetilbecenosulfato s\u00f3dico.  retterella rete: de este tunicado, se aislaron seis nuevos furanoterpenos con esqueleto b\u00e1sico de dendrosalin (8r)-8-hidroxidendrolasin (que posee actividad citot\u00f3xica), (6s, 7r, 8r)-6,7-epoxi-8-hidroxidendro<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Nuevos furanoterpenos y saponinas con actividad citot\u00f3xica de organismos marinos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Nuevos furanoterpenos y saponinas con actividad citot\u00f3xica de organismos marinos <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Lenis Velasquez Luis Alberto <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 A coru\u00f1a<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 26\/07\/2000<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Carlos Jim\u00e9nez Gonz\u00e1lez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: arturo San feliciano martin <\/li>\n<li> Salva garcia Francisco Javier (vocal)<\/li>\n<li>librada Mar\u00eda Ca\u00f1edo hern\u00e1ndez (vocal)<\/li>\n<li> Iglesias randulfe Mar\u00eda  teresa (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Lenis Velasquez Luis Alberto En la presente memoria se realiz\u00f3 el estudio qu\u00edmico de los siguientes organismos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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