respectively, are presented. Conformational analysis of these furanoses is conducted based on the proton nuclear magnetic resonance (1H NMR) spectroscopy, density functional theory (DFT) calculations, and X-ray analysis. It is shown that the particular group of the presented furanoses is locked in the specific conformation. These are the 1T2-like, the 0E-like, and the 3T4-like conformation, respectively. Characteristic
展示了三组分别在 C3-C4、C2-C3 和 C1-C2 键上旋转自由度受限的
呋喃糖。这些
呋喃糖的构象分析基于质子核磁共振 ( 1 H NMR) 光谱、密度泛函理论 (DFT) 计算和 X 射线分析进行。结果表明,所呈现的
呋喃糖的特定组被锁定在特定的构象中。它们分别是1 T 2样、0 E样和3 T 4样构象。特点1介绍了这三种构象的 H NMR 光谱,并讨论了影响分析的
呋喃糖构象偏好的因素。