Oligomannan Synthesis Using Ionic Liquid Supported Glycosylation
摘要:
The synthesis of complex oligosaccharides has been a challenge for researchers. Herein, we describe a strategy for the synthesis of an activated oligomannan 1 that employs ionic liquid (IL) support glycosylation methodology on an IL-tagged mannosyl fluoride donor. This method is capable of rapidly producing linear alpha(1 -> 6) oligomannan thioglycosides in a convenient and cost-effective manner without the need of column purification after each glycosylation step.
Concise assembly of linear α(1→6)-linked octamannan fluorescent probe
作者:Mohammad S. Aqueel、Vibha Pathak、Ashish K. Pathak
DOI:10.1016/j.tetlet.2008.09.164
日期:2008.12
Synthesis of a fluorescently labelled (dansylated) linear alpha(1-->6)-linked octamannan, using glycosyl fluoride donors and thioglycosyl acceptors is described. A selective and convergent two-stage activation progression was executed to construct di-, tetra and octa-mannosyl thioglycosides in three glycosylation steps with excellent yield. Further a 5-N,N-Dimethylaminonaphthalene-1-sulfonamidoethyl