In this study novel reactive α-, β- and γ-cyclodextrin-esters (acrylate, pent-4-enoate and undec-10-enoate) have been synthesised and characterised. The syntheses were carried out by using nitrophenol-esters with the ability to form inclusion complexes with cyclodextrins, thereby aiming at a better control of the substitution degree and number of positional isomers of the cyclodextrin derivatives. Derivatives of α-, β- and γ-cyclodextrins modified with three different lengths of carbon-chains were successfully synthesised and characterised by MALDI-TOF MS, HPLC and LC-MS/MS, revealing some differences in LC elution patterns, substitution degrees and number of produced positional isomers. Differences were seen as an effect of changing the size of the cyclodextrin as well as the size of the side-chain being attached. The inclusion complexes between the nitrophenol esters and the different cyclodextrins were studied by ITC and selected ones by 2D ROESY NMR, showing some interesting differences in strength and structure of the complexes. These differences are speculated to be the origin of the different substitution patterns of the derivatives as observed by LC-MS/MS.
                                    本研究合成了新型活性 α-、β- 和 γ-
环糊精酯(
丙烯酸酯、戊-4-烯酸酯和十一-10-烯酸酯),并对其进行了表征。合成过程中使用了能与
环糊精形成包合物的
硝基苯酚酯,目的是更好地控制
环糊精衍
生物的取代度和位置异构体的数量。用三种不同长度的碳链修饰的 α-、β- 和 γ-
环糊精衍
生物被成功合成,并通过 MALDI-TOF MS、HPLC 和 LC-MS/MS 进行了表征。这些差异被认为是改变
环糊精大小和所附侧链大小的结果。通过 ITC 研究了
硝基苯酚酯与不同
环糊精之间的包合复合物,并通过二维 ROESY NMR 研究了所选复合物,结果显示复合物的强度和结构存在一些有趣的差异。据推测,这些差异是 LC-MS/MS 观察到的衍
生物不同取代模式的根源。