Specific binding capacity of β-cyclodextrin with cis and trans enalapril: Physicochemical characterization and structural studies by molecular modeling
作者:Ariana Zoppi、Mario A. Quevedo、Marcela R. Longhi
DOI:10.1016/j.bmc.2008.08.032
日期:2008.9
The main objective of this work was to study an inclusion complex between enalapril (ENA), and beta-cyclodextrin (beta-CD). From nuclear magnetic resonance (NMR) we determined that the complex showed a 1:1 stoichiometry, with an apparent formation constant (K(C)) of 439 and 290 M(-1) for the cis and trans isomers, respectively. The molecular modeling and NMR techniques demonstrated that the aromatic
这项工作的主要目的是研究依那普利(ENA)和β-环糊精(β-CD)之间的包合物。根据核磁共振(NMR),我们确定该配合物的化学计量比为1:1,顺式和反式异构体的表观形成常数(K(C))分别为439和290 M(-1)。分子建模和NMR技术表明,ENA的芳族部分已插入β-CD的疏水腔中。当研究与β-CD络合的ENA的化学稳定性时,在水溶液和固态下均观察到明显的稳定作用。