Title:Synthesis of Novel Fluoro Phenyl Triazoles Via Click Chemistry with or
without Microwave Irradiation and their Evaluation as Anti-proliferative
Agents in SiHa Cells
Volume: 21
Issue: 4
Author(s): Johana Aguilar, Elisa Leyva*, Silvia Elena Loredo-Carrillo, Agobardo Cárdenas-Chaparro, Antonio Martínez-Richa, Hiram Hernández-López, Jorge Gustavo Araujo-Huitrado, Angélica Judith Granados-López, Yamilé López-Hernández and Jesús Adrián López
Affiliation:
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí,
Manuel Nava No. 6, Zona Universitaria, San Luis Potosí, SLP, 78290, México
Keywords:
Fluoro phenyl triazoles, click chemistry, microwave, cytotoxic activity, biological, antiproliferative effect.
Abstract:
Aims: Perform the synthesis of novel fluoro phenyl triazoles via click chemistry with
or without microwave irradiation and their evaluation as anti-proliferative agents in SiHa cells.
Background: Triazoles are heterocyclic compounds containing a five-member ring with two
carbon and three nitrogen atoms. They are of great importance since many of them have shown
to have biological activity as antifungal, antiviral, antibacterial, anti-HIV, anti-tuberculosis, vasodilator,
and anticancer agents.
Objectives: Synthesize novel fluoro phenyl triazoles via click chemistry and evaluate their antiproliferative
activity.
Methods: First, several fluorophenyl azides were prepared. Reacting these aryl azides with phenylacetylene
in the presence of Cu(I) catalyst, the corresponding fluoro phenyl triazoles were obtained
by two methodologies, stirring at room temperature and under microwave irradiation at
40ºC. In addition, their antiproliferative activity was evaluated in cervical cancer SiHa cells.
Results: Fluoro phenyl triazoles were obtained within minutes by means of microwave irradiation.
The compound 3f, containing two fluorine atoms next to the carbon connected to the triazole
ring, was the most potent among the fluoro phenyl triazoles tested in this study. Interestingly,
the addition of a fluorine atom to the phenyl triazole structure in a specific site increases its
antiproliferative effect as compared to parent phenyl triazole 3a without a fluorine atom.
Conclusion: Several fluoro phenyl triazoles were obtained by reacting fluoro phenyl azides with
phenylacetylene in the presence of copper sulphate, sodium ascorbate and phenanthroline. Preparation
of these triazoles with MW irradiation represents a better methodology since they are obtained
within minutes and higher yields of cleaner compounds are obtained. In terms of biological
studies, the proximity between fluorine atom and triazole ring increases its biological activity.