GRAPHICAL ABSTRACT ABSTRACT Diisopropylidene mannofuranose could be efficiently bridged by phase transfer catalysis via the anomeric position with various tethering structures. Employing Richman–Atkins cyclization conditions with cesium carbonate in DMF mannofuranoside-associated aza-macrocycles were obtained. Further, novel tetrasa-ccharide coronands could be accessed displaying oxa-aza-macrocylic
通过异相位置与各种束缚结构的相转移催化,可以有效地桥接二异亚丙基甘露
呋喃糖。在
DMF甘露
呋喃糖苷相关的氮杂大环化合物中,利用
碳酸铯利用Richman-Atkins环化条件。此外,可以访问显示四氧杂氮杂大杂环[2 + 2]
葡糖烷的新颖的四碳
古龙酸酯。