结合的氧化化折叠体及其对糖的识别
Jun-Li Hou1, Xue-Bin Shao, Guang-Ju Chen
1Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China.
Journal of the American Chemical Society
|September 30, 2004
概括
研究人员开发了新的结驱动的化折叠体,能够识别基糖化物. 这些合成受体表现出选择性分子结合,为人工宿主-客化学开辟了新的途径.
科学领域:
- 超分子化学 超分子化学
- 有机合成 有机合成
- 分子识别分子识别
背景情况:
- 折叠分子是合成的小聚体,模仿蛋白质的二次结构.
- 键是一种关键的非共价相互作用,驱动分子自我组装.
- 人工受体对于选择性客结合和传感应用至关重要.
研究的目的:
- 为了合成和表征基于化物的新型折叠体.
- 为了研究这些折叠材料的结构性质.
- 评估它们识别和结合酸糖的能力.
主要方法:
- 合成具有不同二醇化单位的寡聚物.
- 进行X射线分析和NMR光谱 (1D和2D) 用于结构确定.
- 红外光谱和分子力学计算用于结构分析.
- 用于复杂化研究的NMR和循环二元化 (CD) 实验.
- 光定位用于确定关联常量.
主要成果:
- 成功合成了化折叠体 (寡合体1-7).
- 建立了较短的寡合体的刚性平面形状和较长的寡合体的折叠/螺旋形状 (5-7).
- 折板5-7具有适合绑定客人的刚性腔.
- 证明了基化单和分糖的高效复合,通过甲中的5-7折叠体.
- 使用光谱方法量化结合亲和度 (Kassoc).
结论:
- 化折叠体代表了一种新的结合驱动的合成受体类.
- 这些折叠分子表现出对糖类的选择性分子识别能力.
- 这项研究强调了折叠材料在开发分子结合的人工系统中的潜力.
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