Electrochemical characterization of central action tricyclic drugs by voltammetric techniques and density functional theory calculations

Resumo

This work details the study of the redox behavior of the drugs cyclobenzaprine (CBP), amitriptyline (AMP) and nortriptyline (NOR) through voltammetric methods and computational chemistry. Results obtained in this study show that the amine moiety of each compound is more likely to undergo oxidation at 1a at Ep1a ≈ 0.69, 0.79, 0.93 V (vs. Ag/AgCl/KClsat) for CBP, AMP and NOR, respectively. Moreover, CBP presented a second peak, 2a at Ep2a ≈ 0.98 V (vs. Ag/AgCl/KClsat) at pH 7.0. Furthermore, the electronic structure calculation results corroborate the electrochemical assays regarding the HOMO energies of the lowest energy conformers of each molecule. The mechanism for each anodic process is proposed according to electroanalytical and computational chemistry findings, which show evidence that the methods herein employed may be a valuable alternative to study the redox behavior of structurally similar drugs.

Descrição

Palavras-chave

Electrochemistry, Oxidation mechanism, Computational chemistry, Electronic structure, Cyclobenzaprine

Citação

RODRIGUES, Edson Silvio Batista et al. Electrochemical characterization of central action tricyclic drugs by voltammetric techniques and density functional theory calculations. Pharmaceuticals, Basel, v. 12, n. 3, e116, 2019. DOI: 10.3390/ph12030116. Disponível em: https://www.mdpi.com/1424-8247/12/3/116. Acesso em: 13 dez. 2023.