Preparation of 2-, 3-, and 4-deoxy derivatives of l-rhamnose, and derivatives of 2-azido-2-deoxy-l-rhamnose and 2,6-dideoxy-2-fluoro-l-glucose, for use in glycosylation reactions
作者:Mikael Bols、Inge Lundt、Erik Rytter Ottosen
DOI:10.1016/0008-6215(91)89013-6
日期:1991.12
Abstract The following compounds have been prepared for use as glycosyl donors: 1,3,4-tri- O -acetyl-2,6-dideoxy-2-fluoro-α,β- l -glucopyranose ( 5a ), 1,3,4-tri- O -acetyl-2,6-dideoxy-α,β- l - arabino -hexopyranose ( 7a ), 1,3,4-tri- O -acetyl-2-azido-2,6-dideoxy-α,β- l -mannopyranose ( 8a ), 1,2,4-tri- O -acetyl-3,6-dideoxy-α, l - arabino - hexopyranose ( 13a ), and 1,2,3-tri- O -acetyl-4,6-dideoxy-α-
beta-D-xylopyranose, alpha-L-fucopyranose, 2-azido-2,6-dideoxy-alpha-L-mannopyranose, 2,6-dideoxy-alpha-L-arabino-hexopyranose, 3,6-dideoxy-alpha-L-arabino-hexopyranose, and 4,6-dideoxy-alpha-L-lyxo-hexopyranose. The new glycosides were tested for inhibition of Clostridium histolyticum collagenase and Yoshida Sarcoma tumor cells.
The synthesis of chemically modified disaccharide derivatives of the Shigella flexneri Y polysaccharide antigen
作者:France-Isabelle Auzanneau、H.Rizk Hanna、David R. Bundle
DOI:10.1016/0008-6215(93)84181-5
日期:1993.2
Disaccharide analogs related to the 2-acetamido-2-deoxy-3-O-(alpha-L- rhamnopyranosyl)-beta-D-glucopyranose element of the ShigellaflexneriYpolysaccharideantigen have been synthesized and used to map the binding site of murine monoclonal antibodies GC-4 and SYA/J6 by solid-phase inhibition assays. N-Acetyl, N-trifluoroacetyl and N-benzyloxycarbonyl derivatives of methyl-2-amino-4,6-O-benzylide