Synthesis of specifically monofluorinated ligands related to the O-polysaccharide of Shigella dysenteriae type 1
作者:Laurence A. Mulard、Paul Kováč、Cornelis P.J. Glaudemans
DOI:10.1016/0008-6215(94)84194-2
日期:1994.6
The synthesis is reported of galactopyranose nucleophiles monofluorinated at positions 3, 4, or 6 and protected by 4,6-O-benzylidene, 3,6-di-O-benzyl, or 3,4-O-isopropylidene groups, respectively. The condensation of these nucleophiles with 2,3,4-tri-O-benzoyl-alpha-L-rhamnosyl bromide gave, after deprotection, the disaccharide analogues of methyl O-alpha-L-rhamnopyranosyl-(1-->2)-alpha-D-galactopyranoside