Studies on the α-(1→4)- and α-(1→8)-fucosylation of sialic acid for the total assembly of the glycan portions of complex HPG-series gangliosides
作者:Hiromune Ando、Hiroyo Shimizu、Yukari Katano、Yusuke Koike、Sachiko Koizumi、Hideharu Ishida、Makoto Kiso
DOI:10.1016/j.carres.2006.03.017
日期:2006.7
A synthetic study on alpha-(1 -> 4) and alpha-(1 -> 8)-fucosylation of sialic acid is reported, with the ultimate aim being the total assembly of the glycan portion of HPG-series gangliosides. In both types of fucosylations, the combination of a phenylthio fucosyl donor and a 1,5-lactamized acceptor provided high-yielding glycosylations to afford alpha-fucosyl-sialic acid sequences. The obtained alpha-Fucp-(1 -> 8)-NeupNAc glycan having a 1,5-lactam bridge has been successfully transformed into the corresponding glycosyl donor. (c) 2006 Elsevier Ltd. All rights reserved.