N-methyl-O-benzylhydroxylamine derivatives of sialylated oligosaccharides, their synthesis and separation with reversed-phase HPLC
作者:Thomas Norberg、Elisabet Kallin
DOI:10.1016/j.carres.2023.108939
日期:2023.11
isomeric trisaccharide 6′-sialyllactose-MBHA was also prepared, in this case by enzymatic sialylation of lactose-MBHA. A 50/50 mixture of the two sialyllactose-MBHA derivatives was easily separated by reversed-phase HPLC. The free oligosaccharides were recovered from their respective MBHA derivatives by acid hydrolysis.
将人乳三糖 3'- 唾液酸乳糖与过量的 N-甲基-O-苄基羟胺 (MBHA) 反应,通过固相萃取以高产率 (91%) 分离出产物 3'- 唾液酸乳糖-MBHA。还制备了异构三糖 6'-唾液酸乳糖-MBHA,在本例中是通过乳糖-MBHA 的酶促唾液酸化来制备的。两种唾液酸乳糖-MBHA 衍生物的 50/50 混合物可以通过反相 HPLC 轻松分离。通过酸水解从它们各自的MBHA衍生物中回收游离寡糖。