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Journal of the Mexican Chemical Society

versión impresa ISSN 1870-249X

Resumen

IBARRA-ESCUTIA, Agustin et al. Determination of Acidity Constants, Partition Coefficients between Water and 1-Octanol, and Deprotonation Route of 4-tert-buthyl-bis-(2,6-thiomorpholin-4-ylmethyl)-1-phenol and 4-hydroxy-3,5-bis(morpholin-1-ylmethyl)benzonitrile; Compounds with Antihypertensive Properties. J. Mex. Chem. Soc [online]. 2016, vol.60, n.3, pp.152-162. ISSN 1870-249X.

The pKa values for two compounds (LQM303 and LQM314) with antihypertensive properties were determined by UV spectroscopy (T = 310.15 K and I = 0.15 M) and by Capillary Zone Electrophoresis (T = 310.15 K and I = 0.05 M), using the program SQUAD. The partition coefficients (logP) between water and 1-octanol have also been determined experimentally, demonstrating that both compounds fulfill with the physicochemical parameter logP ≤ 5 of Lipinski´s rules. Calculations on the framework of Density Functional Theory have allowed identifying the functional group related to each pKa for each compound.

Palabras clave : pKa values; electrophoretic mobility; conformational study; UV absorption spectra; CZE; DFT.

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