encountered in carbohydratesynthesis. In particular, lipases allow highlyregioselective O-acylations. Therefore, a growing interest in enzymatic manipulation of protecting groups for the synthesis of oligosaccharides has been developed during recent years. Recently, we reported on the use of lipase catalysed acylation for designing useful building blocks in oligosaccharide synthesis. Excellent selectivity
Easy Chemo-Enzymatic Synthesis of Human Milk Trisaccharides from a Common Selectively Protected Lactose Building Block
作者:Barbara La Ferla、Luigi Lay、Laura Poletti、Giovanni Russo、Luigi Panza
DOI:10.1080/07328300008544082
日期:2000.1
Three glycosyllactosides, contained in the neutral fraction of human milk oligosaccharides, were synthesised in a simple and straightforward manner through a sequence based on a chemo-enzymatic approach. Lipase catalysed regioselective 6'-O-acylation of benzyl β-lactoside, followed by the introduction of an isopropylidene group and acetylation afforded, depending on the reaction conditions, compounds