IN VITRO ANTIMICROBIAL ACTIVITY OF TWO DIBUTYLTIN(IV) COMPLEXES OF KAURENIC ACIDS DERIVATIVES

Authors

  • Patricia Quintero-Rincón Postgrado Interdisciplinario en Química Aplicada, Facultad de Ciencias, Universidad de Los Andes. Mérida 5101, Venezuela
  • Bernardo Fontal Departamento de Química, Universidad de Los Andes, Facultad de Ciencias, Laboratorio de Organometálicos, Mérida 5101, Venezuela
  • Yuraima Fonseca Departamento de Química, Universidad de Los Andes, Facultad de Ciencias, Laboratorio de Organometálicos, Mérida 5101, Venezuela,
  • Fernando Bellandi Departamento de Química, Universidad de Los Andes, Facultad de Ciencias, Laboratorio de Organometálicos, Mérida 5101, Venezuela,
  • Ricardo Contreras Departamento de Química, Universidad de Los Andes, Facultad de Ciencias, Laboratorio de Organometálicos, Mérida 5101, Venezuela
  • Joel E. Vielma-Puente Departamento de Química, Universidad de Los Andes, Facultad de Ciencias, Laboratorio de Organometálicos, Mérida 5101, Venezuela
  • Freddy Carrillo-Rodriguez Departamento de Química, Universidad de Los Andes, Facultad de Ciencias, Laboratorio de Productos Naturales, Mérida 5101, Venezuela
  • Ana González-Romero Departamento de Microbiología y Parasitología, Universidad de Los Andes, Facultad de Farmacia y Bioanálisis, Mérida 5101, Venezuela,
  • Jesús Velásquez Laboratorio Biotecnológico de Productos Forestales, Centro Biotecnológico de Guayana CEBIOTEG-UNEG, Upata, Edo Bolívar, Venezuela

DOI:

https://doi.org/10.9755/ejfa.2016-09-1176

Keywords:

Dibutyltin (IV) complexes, Kaurenic acids, Escherichia coli, Pseudomonas aeruginosa;, Trametes versicolor

Abstract

The antimicrobial activity in vitro of ent-kaurenic, KA [1] and grandiflorenic acid, GA [2], two natural products obtained from Espeletia
semiglobulata Cuatrec., and two dibutyltin (IV) complexes [3] and [4] derived from natural products synthesis, ent-kaurenic acid and
grandiflorenic acid, respectively, against strains of Escherichia coli, Pseudomonas aeruginosa, both pathogens for man, and Trametes
versicolor, a fungus responsible of white wood rotting. For the human pathogens, an agar diffusion disk was used, with a 30 µg/mL
concentration. There was an improved activity with the dibutyltin (IV) with grandiflorenic acid [4] against E. coli; while the anti-fungal
activity against T. versicolor was done by a gel dilution method with surface plate inoculation getting an improved anti-fungal activity with
120 µg/mL concentration. The new compounds were characterized with FTIR spectroscopy, 1H, 13C unidimensional and bidimensional
NMR experiments for the natural products [1], [2] and the organotin complexes [3] and [4].

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Published

2017-11-10

How to Cite

Quintero-Rincón, P., B. Fontal, Y. Fonseca, F. Bellandi, R. Contreras, J. E. Vielma-Puente, F. Carrillo-Rodriguez, A. González-Romero, and J. Velásquez. “IN VITRO ANTIMICROBIAL ACTIVITY OF TWO DIBUTYLTIN(IV) COMPLEXES OF KAURENIC ACIDS DERIVATIVES”. Emirates Journal of Food and Agriculture, vol. 28, no. 12, Nov. 2017, pp. 865-71, doi:10.9755/ejfa.2016-09-1176.

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Regular Articles