A reliable and convenient method for determining the configuration and conformation of the furanose ring in carbohydrates and nucleosides by vibrational circular dichroism (VCD) spectroscopy is described. Diastereomeric pairs of several furanose monosaccharides and nucleosides were prepared, and their VCD spectra were analyzed. The results revealed that VCD spectroscopy elucidates the equibrated state
描述了一种可靠方便的方法,通过振动圆二色性(
VCD)光谱确定
碳水化合物和核苷中
呋喃糖环的构型和构象。制备了几种
呋喃糖
单糖和核苷的非对映异构体对,并分析了它们的
VCD光谱。结果表明,
VCD光谱可阐明
呋喃糖环折叠的平衡状态,而这通常很难通过其他技术进行研究。