848850-44-2Relevant academic research and scientific papers
Synthetic construction of a fucosyl chitobiose as an allergen-associated carbohydrate epitope and the glycopolymer involving highly clustered trisaccharidic sequences
Matsuoka, Koji,Yamaguchi, Hiroki,Koyama, Tetsuo,Hatano, Ken,Terunuma, Daiyo
scheme or table, p. 2529 - 2532 (2010/06/16)
Synthetic construction of fucosyl chitobiose [GlcNAcβ1→4(Fucα1→3)GlcNAc] as an allergy-associated carbohydrate epitope was accomplished from three building blocks. The trisaccharidic unit was further transformed into a carbohydrate monomer and polymerization of the glycomonomer proceeded smoothly to provide a series of glycopolymers having various carbohydrate densities. In addition to the organic syntheses, biological evaluations of the glycomonomer and the polymers were carried out and sugar-clustering effects were observed.
α:β Selectivity in the synthesis of 3-substituted, 4-methyl umbelliferone glycosides of N-acetyl glucosamine and chitobiose
Ganguli, Anjali R.S.,Coward, James K.
, p. 411 - 424 (2007/10/03)
The influence of phenolic acceptor nucleophilicity; for example, 3-substituted, 4-methylumbelliferones, and glycosyl donor electrophilicity; for example, 3- and 4-substituted N-acetylglucosamines, on glycosylation stereochemistry has been evaluated. In a systematic comparison, the stereochemical outcome as well as the reaction yield appeared to be influenced by the 3- and 4-substituents of the donor as well as the 3-substituent of the aryl acceptor. In the context of synthesizing a fluorogenic substrate for oligosaccharyltransferase, an α-glycoside was desired. Although most acceptor-donor pairs led to predominantly or exclusively the β-glycoside, reaction of the most activated (3,4-di-O-benzyl) donor and the least nucleophilic acceptor (3-Br), resulted in a 1:1 ratio of α,β arylglycosides.
