环氧和高水溶性客体的超分子自我组装:热力学和拓学研究
Frederico B De Sousa1, Angelo M Leite Denadai, Ivana S Lula
1Laboratório de Encapsulamento Molecular e Biomateriais-Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil 31270-901.
Journal of the American Chemical Society
|June 6, 2008
概括
研究了伊米普拉胺化物 (IMI) 和β-环极素 (betaCD) 之间的超分子相互作用. 2:1βCD/IMI复合物是最稳定的含有化合物,对于制药配方策略至关重要.
科学领域:
- 制药科学 制药科学
- 超分子化学 超分子化学
- 物理化学 物理化学
背景情况:
- 伊米胺 (IMI) 是一种三环抗抑郁药.
- β-环氧德克斯 (betaCD) 是一种经常用于药物配方的循环寡糖.
- 了解宿主与客人的互动是开发有效药物输送系统的关键.
研究的目的:
- 为了研究IMI和betaCD之间的超分子相互作用.
- 为了确定由此产生的纳入复合体的固体几何学和结构.
- 评估对制药配方的影响.
主要方法:
- 实验技术包括核磁共振 (NMR),水平减弱总反射率 (HATR),自我扩散系数 (DSC),动态光散射 (DLS) 和异热定位热量计 (ITC).
- 理论计算 (计算化学) 来确定最稳定的超分子结构.
主要成果:
- 在溶液中检测到多个βCD/IMI静脉测量 (1:2, 1:1, 2:1).
- 证明不同复合体之间的自我聚合和平衡.
- 理论计算确定了2:1βCD/IMI复合体是能量最有利的结构.
- 分子间的键显著稳定了2:1复合体.
结论:
- 这项研究阐明了IMI和βCD之间的复杂的超分子相互作用.
- 2:1βCD/IMI复合体是最喜欢和最稳定的安排.
- 这些发现为设计利用环氧德克斯含复合物的制药配方提供了宝贵的见解.
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