Synthesis of 6,6′-ether linked disaccharides from<scp>d</scp>-allose,<scp>d</scp>-galactose,<scp>d</scp>-glucose and<scp>d</scp>-mannose; evidence on the structure of coyolosa
作者:Alan H. Haines
DOI:10.1039/b407468h
日期:——
6'-Linked ethers derived from D-allose, D-galactose, D-glucose, and D-mannose have been prepared in order to allow comparisons with the reported 6,6'-linked hexopyranose coyolosa, an hypoglycemic compound which has been isolated by extraction of the root of the palm Acrocomia mexicana. Comparison of NMR data from the ethers and their derived peracetates with corresponding reported data from coyolosa and its
为了与已报道的6,6'-连接的六吡喃葡萄糖椰油酸酯进行比较,已制备了衍生自D-阿洛糖,D-半乳糖,D-葡萄糖和D-甘露糖的6,6'-连接醚,后者通过提取棕榈Acrocomia mexicana的根来分离。来自醚及其衍生的过乙酸盐的NMR数据与来自油桐及其过乙酸盐的相应报道数据的比较表明,油桐不是6,6'-连接的二糖。合成的化合物代表了一类新型的二糖衍生物,与更常见的头对尾(例如麦芽糖)或头对头(例如海藻糖)二糖相反,它们的尾对尾连接。