Thermodynamic insights to solubility and lipophilicity of new bioactive hybrids triazole with thiazolopyrimidines
作者:Svetlana V. Blokhina、Marina V. Ol'khovich、Angelica V. Sharapova、Igor B. Levshin、German L. Perlovich
DOI:10.1016/j.molliq.2020.114662
日期:2021.2
1-octanol at (293.15–313.15) K by the shake flask method. The compound solubility in the buffers did not exceed 9.0∙10−4 mol/L and decreased when the substituent was changed as follows: methoxy-, methyl-, chloro-, and fluoro-. The methoxy-derivative was found to have the more higher solubility in 1-octanol - 1.3∙10−2 mol∙L−1 at 298.15 K. The solubility behavior of the substances was studied based on Hansen
合成了四种新型的潜在的噻唑并嘧啶类抗真菌1,2,4-三唑杂合体,它们在分子苯环中具有不同的甲基,甲基,甲氧基,氯和氟取代基,并通过1 H NMR光谱表征。PXRD和DSC技术表明,所得化合物的固相为非晶态。在各种酸度的水性介质中研究了这些物质的动力学溶解度。通过摇瓶法测定衍生物在缓冲液(pH 2.0和7.4)和1-辛醇(293.15–313.15)K下的平衡溶解度。化合物在缓冲液中的溶解度不超过9.0∙10 -4 摩尔/升,当取代基改变如下时降低:甲氧基,甲基,氯和氟。发现甲氧基衍生物在298.15 K时在1-辛醇中具有更高的溶解度-1.3∙10 -2 mol∙L -1。基于汉森溶解度参数研究了这些物质的溶解行为。溶解度值通过改进的van't Hoff和改进的Apelblat方程进行关联。改进的Apelblat模型获得了最佳结果。在(293.15–313.15)K下测定1-辛醇/缓冲液pH