基拉尔软球:合成和分子识别特性
J M Rivera1, T Martín, J Rebek
1Contribution from The Skaggs Institute for Chemical Biology and the Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Journal of the American Chemical Society
|July 18, 2001
概括
状软球二元体为特烯等客体的酶选择性封装创造了不对称的腔. 这些灵活而又刚硬的囊表现出适度的选择性,并且可以在异构体之间相互转换.
科学领域:
- 超分子化学 超分子化学
- 有机化学 有机化学
- 立体化学是一种立体化学.
背景情况:
- 软球结构在分子封装中的潜力被探索.
- 了解结构变异是实现反选择性特性的关键.
研究的目的:
- 为了研究软球类同源的结构变异,用于对抗选择性封装.
- 设计具有不对称空腔的合性囊,能够区分反体.
主要方法:
- 用不同的间隔元件合成软球同源物.
- 二维软球结构及其腔体积的表征.
- 与不对称的客人进行复杂化研究,包括烯.
主要成果:
- 两个不同的间隔元件诱导了二极体软球中的性,尽管有无性单体.
- 二元软球形成的囊具有不对称的空洞 (190390 Å3).
- 对于不对称的客人来说,观察到适度的反选择性 (高达4:1),有利于一个囊反选择体.
结论:
- 状软球二极管有效地为对抗选择性客体封装创建不对称的空腔.
- 主体囊表现出灵活性和刚性的平衡,使客人适应和立体化学影响.
- 酶体囊通过解离和重组表现出相互转换,表明了动态行为.
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