Quantitative Structure–Stability Relationships Among Inclusion Complexes of Cyclodextrins I: Barbituric Acid Derivatives
作者:Antal Lopata、Ferenc Darvas、Ágnes Stadler-Szóke、József Szejtli
DOI:10.1002/jps.2600740223
日期:1985.2
Quantitative structure-stability relationships (QSSRs) are formulated for the inclusion complexation of 17 barbituric acid derivatives with alpha- and beta-cyclodextrin. The variation in the complex stability constants K alpha and K beta is found to be partly accounted for by the molar refractivity or the hydrophobicity of the substituent R1 at position 5 of the barbiturate ring. In addition, K alpha
建立了定量结构稳定性关系(QSSR),用于17种巴比妥酸衍生物与α-和β-环糊精的包合络合。发现复杂稳定性常数Kα和Kβ的变化部分地由巴比妥酸酯环的5位上的取代基R1的摩尔折射率或疏水性引起。另外,K alpha还取决于R 1是支链还是环状,并且K beta也取决于客体分子是巴比妥酸盐还是硫代巴比妥酸盐。结果表明,在α-环糊精-巴比妥酸酯络合物中,环糊精腔仅包含R1,而在β-环糊精-络合物中,R1和(部分)巴比妥酸酯环均包括在内。将该复杂模型与其他作者提出的模型进行了比较。