Glycomonomers of sialic acid in which the acetamide group at C-5 was converted into two kinds of CC double bond substituents were prepared and the fully protected glycomonomers were directly polymerized before deprotection steps. Radical polymerization with acrylamide in DMF in the presence of ammonium persulfate and N,N,N’,N’-tetramethylethylenediamine proceeded smoothly and gave corresponding sialopolymers
制备了
唾液酸的共聚单体,其中在C-5处的乙酰胺基被转化为两种CC双键取代基,并且在脱保护步骤之前将完全保护的糖单体直接聚合。在过
硫酸铵和N,N,N',N'-
四甲基乙二胺的存在下,在
DMF中用
丙烯酰胺进行的自由基聚合反应顺利进行,得到相应的唾液聚合物。有趣的是,糖单体不仅对人流感病毒株的H1N1具有血凝抑制活性,而且对
H3N2也具有血凝抑制活性。