Estudio químico y actividad citotóxica de Phlegmariurus cruentus (Lycopodiaceae)
dc.contributor.advisor | Mayorga Wandurraga, Humberto | |
dc.contributor.author | Aponte Buitrago, Andrés Ricardo | |
dc.contributor.researchgroup | Productos Naturales Vegetales Bioactivos y Quimica Ecoiogica | spa |
dc.date.accessioned | 2022-08-23T20:52:53Z | |
dc.date.available | 2022-08-23T20:52:53Z | |
dc.date.issued | 2022-08-22 | |
dc.description | ilustraciones, gráficas, tablas | spa |
dc.description.abstract | La investigación fitoquímica del extracto etanólico de la parte aérea de Phlegmariurus cruentus, condujo al aislamiento y purificación por técnicas cromatográficas de cuatro nuevos triterpenos del tipo serrateno, identificados como 24-acetoxiserratenediol (S5), lycophlegmariol E (S7), lycophlegmariol F (S8) y 3-acetil-serratriol (S9), así como de cinco serratenos conocidos y nombrados como phlegmanol C (S1), acetato de 3-serratenediol (S2), 21-epi-serratenediol (S3), serratenediol (S4), y 21-episerratriol (S6). Sus estructuras químicas y configuraciones relativas fueron elucidadas mediante el análisis de datos obtenidos por HRESIMS, RMN en 1D (1H, APT 13C) y en 2D (COSY, HMQC, HMBC y NOESY) y rotación óptica especifica. Además, los datos obtenidos se compararon con los valores espectroscópicos previamente publicados para serratenos conocidos. El uso del ensayo de letalidad contra Artemia salina permitió el aislamiento bioguiado de los compuestos purificados. Las fracciones C-4, enriquecida en el compuesto S1, E-14, con el compuesto mayoritario S2, E-20, fuente principal de los compuestos S3 y S4 y A-4, conformada mayoritariamente por los serratenos S5, S6, S7, S8 y S9, mostraron valores de actividad biológica promisorios contra A. salina. Así mismo, los compuestos S1, S2, S3, S5 y S6 exhibieron resultados de actividad citotóxica contra la línea celular U87-MG, mientras los compuestos S2 y S5 presentaron actividad frente a la línea celular MCF7 de cáncer de mama. Además, el análisis por GC-MS de la fracción volátil A-1, mostró en su mayoría ésteres etílicos como el palmitato de etilo (25,42%), además del α-tocospiro A y α-tocospiro B, reportados por primera vez en este trabajo para la familia Lycopodiaceae. | spa |
dc.description.abstract | The phytochemical research of the ethanolic extract of the aerial part of Phlegmariurus cruentus led to the isolation and purification by chromatographic techniques of four new serratene-type triterpenes identified as 24-acetoxyserratenediol (S5), lycophlegmariol E (S7), lycophlegmariol F (S8) and 3-acetyl-serratriol (S9), as well as five serratenes known as phlegmanol C (S1), 3-serratenediol acetate (S2), 21-epi-serratenediol (S3), serratenediol (S4), and 21-episerratriol (S6). Their chemical structures and relative configurations were elucidated by analyzing data obtained by HRESIMS, 1D (1H, APT 13C) and 2D (COSY, HMQC, HMBC and NOESY) NMR and specific optical rotation. Moreover, the obtained data were compared to spectroscopic values for known serratenes previously published in the literature. The use of the lethality assay against Artemia salina allowed the bioguided isolation of the purified compounds. The fractions C-4, enriched in the compound S1, E-14, with most of the compound S2, E-20, main source of the compounds S3 and S4 and A-4, made up mainly of serratenes S5, S6, S7, S8 and S9 showed promising biological activity values against A. salina. In the same way, the compounds S1, S2, S3, S5 y S6 exhibited results of cytotoxic activity against the cell line U87-MG, while the compounds S2 and S5 showed activity against the cell line MCF7 of breast cancer. Furthermore, the GC-MS analysis of volatile fraction A-1 revealed that it contained mostly ethyl esters, such as ethyl palmitate (25.42%), as well as α-tocospiro A and α-tocospiro B, which were discovered for the first time in this work for the family Lycopodiaceae. | eng |
dc.description.degreelevel | Maestría | spa |
dc.description.degreename | Magíster en Ciencias - Química | spa |
dc.description.researcharea | Productos Naturales | spa |
dc.description.sponsorship | CONVOCATORIA NACIONAL PARA EL FOMENTO DE ALIANZAS INTERDISCIPLINARIAS QUE ARTICULEN INVESTIGACIÓN, CREACIÓN, EXTENSIÓN Y FORMACIÓN EN LA UNIVERSIDAD NACIONAL DE COLOMBIA 2019-2021 | spa |
dc.format.extent | 247 páginas | spa |
dc.format.mimetype | application/pdf | spa |
dc.identifier.instname | Universidad Nacional de Colombia | spa |
dc.identifier.reponame | Repositorio Institucional Universidad Nacional de Colombia | spa |
dc.identifier.repourl | https://repositorio.unal.edu.co/ | spa |
dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/82042 | |
dc.language.iso | spa | spa |
dc.publisher | Universidad Nacional de Colombia | spa |
dc.publisher.branch | Universidad Nacional de Colombia - Sede Bogotá | spa |
dc.publisher.department | Departamento de Química | spa |
dc.publisher.faculty | Facultad de Ciencias | spa |
dc.publisher.place | Bogotá, Colombia | spa |
dc.publisher.program | Bogotá - Ciencias - Maestría en Ciencias - Química | spa |
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dc.rights | Derechos reservados al autor, 2022 | spa |
dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional | spa |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | spa |
dc.subject.ddc | 540 - Química y ciencias afines::547 - Química orgánica | spa |
dc.subject.decs | Licopodio | spa |
dc.subject.decs | Triterpenos | spa |
dc.subject.decs | Fitoquímicos | spa |
dc.subject.decs | Phytochemicals | eng |
dc.subject.proposal | Familia Lycopodiaceae | spa |
dc.subject.proposal | Phlegmariurus cruentus | spa |
dc.subject.proposal | Serratenos | spa |
dc.subject.proposal | Aislamiento bioguiado | spa |
dc.subject.proposal | Artemia salina | spa |
dc.subject.proposal | Lycopodiaceae | eng |
dc.subject.proposal | Serratenes | eng |
dc.subject.proposal | Bioguided isolation | eng |
dc.subject.proposal | Artemia salina | eng |
dc.title | Estudio químico y actividad citotóxica de Phlegmariurus cruentus (Lycopodiaceae) | spa |
dc.title.translated | Chemical study and citotoxic activity of Phlegmariurus cruentus (Lycopodiaceae) | eng |
dc.type | Trabajo de grado - Maestría | spa |
dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | spa |
dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa | spa |
dc.type.content | Text | spa |
dc.type.driver | info:eu-repo/semantics/masterThesis | spa |
dc.type.redcol | http://purl.org/redcol/resource_type/TM | spa |
dc.type.version | info:eu-repo/semantics/acceptedVersion | spa |
dcterms.audience.professionaldevelopment | Investigadores | spa |
oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |
oaire.awardtitle | Estudio sobre la composición química y actividad biológica de algunas plantas de la familia Lycopodiaceae de Colombia. | spa |
oaire.fundername | Universidad Nacional de Colombia | spa |
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