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A Short and Simple Synthesis of Branched Mannoligosaccharides with [1-13C]-Labelled Terminal mannose Units

Ivlev E., Backinowsky L., Abronina P., Kononov L., Kochetkov N.

Polish Journal of Chemistry

2005

Vol. 79 / nr 2

275-286

Mannosylation with 2,3,4,6-tetra-O-benzoyl-_-D-[1-13C]mannopyranosyl bromide as a glycosyl donor has been used for the synthesis of 3,6-branched mannotri- and -pentaoside bearing labelled terminal mannopyranose units. Methyl 2,4-di-O-benzoyl-_-Dmannopyranoside was used as the glycosyl acceptor for the synthesis of the trisaccharide and also converted into a disaccharide precursor for the pentasaccharide.