Supramolecular drug inclusion complex constructed from cucurbit[7]uril and the hepatitis B drug Adefovir
Supramolecular drug inclusion complex constructed from cucurbit[7]uril and the hepatitis B drug Adefovir
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DOI：
10.1080/10610278.2018.1562193
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发表时间：
2018-12
影响因子：
3.3
通讯作者：
Huaming Feng;Jinglan Kan;C. Redshaw;Bing Bian;Z. Tao;Xin Xiao
中科院分区：
文献类型：
--
作者：
Huaming Feng;Jinglan Kan;C. Redshaw;Bing Bian;Z. Tao;Xin Xiao
摘要 通过 1H NMR 光谱、电子吸收光谱、等温滴定量热法和质谱法研究了葫芦[7]脲 (Q[7]) 和阿德福韦 (ADV) 在水溶液中的相互作用。结果表明，通过包封客体ADV的嘌呤环形成包合物，同时阻止膦酰甲氧基乙基进入空腔。 ITC 数据显示，这种 1:1 包合物的形成主要是由有利的焓变驱动的。调查 ADV 从包合物中释放的研究表明，在酸性条件下，释放速率有所提高，尽管释放速率比相同条件下游离客体观察到的速率要慢。热稳定性研究表明，ADV 的内含形式比游离形式更稳定。图解摘要
ABSTRACT The interaction between cucuribit[7]uril (Q[7]) and Adefovir (ADV) has been studied in aqueous solution by 1H NMR spectroscopy, electronic absorption spectroscopy, Isothermal Titration Calorimetry and mass spectrometry. The results revealed that an inclusion complex was formed via encapsulation of the purine rings of the guest ADV, while the phosphonomethoxyethyl group was prevented from entering the cavity. ITC data revealed that the formation of this 1:1 inclusion complex is mainly driven by favourable enthalpy changes. Studies investigating the release of ADV from the inclusion complex revealed enhanced rates under acidic conditions, although the rates were slower than observed for the free guest under the same conditions. Thermal stability studies indicated that the included form of ADV was more stable that the free form. GRAPHICAL ABSTRACT