摘要
使用了核磁共振波谱、基质辅助激光解吸电离飞行时间质谱、等温滴定量热和荧光光谱等表征手段考察了对称四甲基六元瓜环(TMeQ[6])与抗癌性药物分子卡培他滨(CAP)之间的主客体超分子作用,实验结果表明:CAP分子的烷基链部分进入到了瓜环的空腔内部,而其余的部分则处于瓜环的端口外侧.该结论为今后TMeQ[6]在医学领域上作为药物分子载体方面的应用提供了理论依据.
A novel supramolecular host-guest complex of the anticancer drug capecitabine(CAP) with symmetrical α,α′,δ,δ′-tetramethyl-cucurbit[6]uril(TMeQ[6]) has been characterized using nuclear magnetic resonance spectroscopy, MALDI-TOF mass spectrometry, isothermal titration calorimetryand fluorescence spectroscopy analyses. The result revealed that the alkyl chain of CAP is located inside the cavities of TMeQ[6], whereas the other part of CAP remains outside the portal. Our results suggest that TMeQ[6] could be a promising candidate for use as an excipient in the pharmaceutical and medical research fields.
引文
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