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.
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
Methods and immunogenic compositions for generating an immune response against Marburg virus are provided. The immunogenic composition includes antigens obtained from a Marburg viral strain in combination with an oleanolic acid triterpene adjuvant.
Imidazolium Cation Supported Solution-Phase Assembly of Homolinear α(1→6)−Linked Octamannoside: An Efficient Alternate Approach for Oligosaccharide Synthesis
作者:Charu K. Yerneni、Vibha Pathak、Ashish K. Pathak
DOI:10.1021/jo901169u
日期:2009.8.21
An efficient, simple convergent assembly of a homolinear alpha(1 -> 6)-linked octamannosyl thioglycoside was obtained starting from imidazolium cation-tagged mannosyl fluoride and thiomannoside using block couplings. During chain elongation glycosylation reactions no column chromatographic purifications were used.