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Derivados hemisintéticos del ent-kaurenol y evaluación de su actividad antimicrobiana
| dc.rights.license | http://creativecommons.org/licenses/by-nc-sa/3.0/ve/ | es_VE |
| dc.contributor.author | Hamdan-Sánchez, Mager | |
| dc.contributor.author | Rojas, Luis B. | |
| dc.contributor.author | Obregón Díaz, Ysbelia | |
| dc.contributor.author | Aparicio Z., Rosa L. | |
| dc.contributor.author | Pérez Colmenares, Alida | |
| dc.contributor.author | Cordero de Rojas, Yndra | |
| dc.contributor.author | Díaz, Clara | |
| dc.contributor.author | Da Silva-Rojas, Jossblerys | |
| dc.contributor.author | Usubillaga, Alfredo | |
| dc.date.accessioned | 2022-07-20T15:53:15Z | |
| dc.date.available | 2022-07-20T15:53:15Z | |
| dc.date.issued | 2022-07-20 | |
| dc.identifier.issn | 0543- 517-X | |
| dc.identifier.uri | http://www.saber.ula.ve/handle/123456789/48327 | |
| dc.description.abstract | La obtención de seis nuevos derivados hemisintéticos a partir de ent-kaurenol (I), se realizó mediante la reacción de esterificación de Steglich empleando los ácidos p-cloro-fenil-acético, o-cloro-fenil-acético, m-cloro-fenil-acético, p-bromo-fenil-acético, nicotínico y salicílico; utilizando la combinación de diciclohexilcarbodiimida (DCC, agente de acoplamiento), 4-dimetilaminopiridina (DMAP, catalizador nucleofílico) y como solvente el diclorometano. Todos los compuestos fueron caracterizados mediante técnicas espectroscópicas de IR y RMN uni y bidimensionales, lográndose identificar como ent-kaur-19-O-[2’-(p-cloro-fenil)-carboximetil]-16-eno (II), ent-kaur-19-O-[2´-(o-cloro-fenil)- carboximetil]-16-eno (III), ent-kaur-19-O-[2’-(m-cloro-fenil)-carboximetil]-16-eno (IV), ent-kaur-19-O-[2’-(p-bromo- fenil)-carboximetil]-16-eno (V), ent-kaur-19-O-(m-piridil-carboxil)-16-eno (VI) y ent-kaur-19-O-(o-hidroxi-fenil- carboxil)-16-eno (VII). Estos compuestos no presentaron actividad antimicrobiana mediante el método de difusión en agar en pozo frente a cepas ATCC de Staphylococcus aureus, Escherichia coli, Enterococcus faecalis, Klebsiella pneumoniae, Pseudomonas aeruginosa y Candida albicans a una concentración de 2 mg/mL. | es_VE |
| dc.language.iso | es | es_VE |
| dc.publisher | SaberULA | es_VE |
| dc.rights | info:eu-repo/semantics/openAccess | es_VE |
| dc.subject | Diterpenos | es_VE |
| dc.subject | Ent-kaureno | es_VE |
| dc.subject | Ent-kaurenol | es_VE |
| dc.subject | Esterificación de Steglich | es_VE |
| dc.subject | Actividad antimicrobiana | es_VE |
| dc.title | Derivados hemisintéticos del ent-kaurenol y evaluación de su actividad antimicrobiana | es_VE |
| dc.title.alternative | Hemisynthetic derivatives of ent-kaurenol and evaluation of their antimicrobial activity | es_VE |
| dc.type | info:eu-repo/semantics/article | es_VE |
| dcterms.dateAccepted | junio de 2022 | |
| dcterms.dateSubmitted | marzo de 2022 | |
| dc.description.abstract1 | Hemisynthetic derivatives of ent-kaurenol and evaluation of their antimicrobial activity. Six new hemisynthetic derivatives were obtained from ent-kaurenol (I), this was performed by the Steglich esterification reaction using p-chloro-phenyl-acetic acid, o-chloro-phenyl-acetic acid, m-chloro-phenyl-acetic, p- bromo-phenyl-acetic, nicotinic and salicylic; using the combination of dicyclohexylcarbodiimide (DCC, coupling agent), 4-dimethylaminopyridine (DMAP, nucleophilic catalyst) and dichloromethane as solvent. All compounds were characterized by one- and two-dimensional NMR,IR spectroscopic techniques and were identified as ent-kaur-19-O-[2'- (p-chloro-phenyl)-carboxymethyl]-16-ene (II), ent-kaur-19-O-[2’-(o-chloro-phenyl)-carboxymethyl]-16-ene (III), ent- kaur-19-O-[2’-(m-chloro-phenyl)-carboxymethyl]-16-ene (IV), ent-kaur-19-O-[2´-(p-bromo-phenyl)-carboxymethyl]-16-ene (V), ent-kaur-19-O-(m-pyridyl-carboxyl)-16-ene (VI) and ent-kaur-19-O-(o-hydroxy-phenyl-carboxyl-16-ene (VII). These compounds did not exhibit antimicrobial activity by the well agar diffusion method against ATCC strains of Staphylococcus aureus, Escherichia coli, Enterococcus faecalis, Klebsiella pneumoniae, Pseudomonas aeruginosa and Candida albicans at the concentration of 2 mg/mL. | es_VE |
| dc.description.colacion | 20-28 | es_VE |
| dc.description.email | ysbeliaobregon@gmail.com | es_VE |
| dc.description.frecuencia | Semestral | |
| dc.description.paginaweb | http://www.saber.ula.ve/farmacia/ | |
| dc.identifier.depositolegal | pp195802ME1003 | |
| dc.identifier.edepositolegal | ppi201202ME4102 | |
| dc.identifier.eissn | 2244-8845 | |
| dc.publisher.pais | Venezuela | es_VE |
| dc.subject.institucion | Universidad de Los Andes | es_VE |
| dc.subject.keywords | Diterpenes | es_VE |
| dc.subject.keywords | Ent-kaurene | es_VE |
| dc.subject.keywords | Ent-kaurenol | es_VE |
| dc.subject.keywords | Steglich esterification | es_VE |
| dc.subject.keywords | Hemisynthetic derivatives | es_VE |
| dc.subject.seccion | Revista de la Facultad de Farmacia: Artículos | es_VE |
| dc.subject.tipo | Artículos | es_VE |
| dc.type.media | Texto | es_VE |
| dc.identifier.doi | https://doi.org/10.53766/REFA/2022.64.01.03 | es |
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Revista de la Facultad de Farmacia - Volumen 64 (1)
Enero-Junio 2022


