摘要 : Many carbohydrate-containing natural products, which possess mono- and oligosaccharides, such as proteoglycans, glycoproteins, glycolipids, and antibiotics, are found in nature as important biological substances. A large number of... 展开 Many carbohydrate-containing natural products, which possess mono- and oligosaccharides, such as proteoglycans, glycoproteins, glycolipids, and antibiotics, are found in nature as important biological substances. A large number of recent biological studies on these glycomolecules at the molecular level have shed light on the biological significance of their carbohydrate units (glycons) in molecular recognition for the transmission of biological information. It is now recognized that carbohydrates are at the heart of a multitude of biological events. Additionally, some glycomolecules have been developed as new functional materials. For example, certain alkyl glycosides are expected to be biodegradable surfactants. Therefore, glycomolecules continue to be the central focus of much research in chemistry, biology, and material science. With this stimulating background, the efficient synthesis of not only the carbohydrate itself, but also carbohydrate-containing products, is of particular interest both in academia and in industry. In this context, glycosylation, which is a crucial organic synthetic method to attach a sugar to other sugar moieties or other molecules (aglycons), 收起