Synthesis of oligosaccharides containing β-d-Gal-(1→3)-O-(6-O-sulfo-β-d-GlcNAc) as a terminal unit1Synthetic studies in carbohydrates, Part 106. For Part 105 see ref.[1].1
摘要:
The chemical synthesis of beta-D-Gal-(1-->3)-6-O-SO3Na-beta-D-GlcNAc-(1-->6)-alpha-D-Man-O-C6H4NO2 (1) and beta-D-Gal-(1-->3)-6-O-SO3Na-beta-D-GlcNAc-(1-->2)-alpha-D-Man-OMe (2) is reported using a key glycosyl donor, phenyl O-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-(1-->3)-4,6-di-O-chloroacetyl-2-deoxy-2-phthalimido-1-thio-beta-D-glucopyranoside (3). (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
[bmim][OTf]: a versatile room temperature glycosylation promoter
作者:M. Carmen Galan、Claire Brunet、Monica Fuensanta
DOI:10.1016/j.tetlet.2008.11.042
日期:2009.1
[bmim][OTf] is a versatile, ionic liquid promoter for the room temperature glycosylation of both thiophenyl and trichloroacetimidate glycoside donors; the conditions are mild, with no requirement for molecular sieves, and are compatible with a wide range of donors and protecting groups. (c) 2008 Elsevier Ltd. All rights reserved.