Synthesis of Tri- and Tetra-saccharides

Synthesis of Tri- and Tetra-saccharides. Kovaf and co-workers have produced several D-xylose trisaccharides related to structural components of xylans. Direct D-xylosylation of methyl 2-0-benzyl-j -D-xylopyranoside gave access to the methyl glycoside of 3,4-di-0-( 3-D-xylopyranosyl)-i8-D-xylose, and the 2,4- 

Synthesis of Tri- and Tetra-saccharides.—Two specific trisaccharides have been produced by galactosylation of lactose. The 6-j8-linked compound (27) was made from the 2,2, 3,3 -tetra-0-acetyl-l,6-anhydro derivative, and the 4-a-linked isomer (28), as its methyl j8-glycoside, from the methyl glycoside 

6 -hexabenzoate. Enzymic methods have been used for the preparation of panose [0-a-D-glucopyranosyl-(l - 6)-0-a-D-glucopyranosyl-(1 - 4)-D-glucose] and isopanose from pullulan.  

Paulsen s laboratory has also contributed to the area of synthetic amino-containing tetrasaccharides and has described the tetrasaccharide equivalent of compound (32). and the terminal tetrasaccharides of the determinants of blood-group substances A and B  

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Pinto et alP have reported the synthesis of 4-tliiogalactofirranosyl analogues of di-, tri-, and tetra-saccharides corresponding to fragments of the... 

Takeo K, Suzuki T (1986) Synthesis of the Tri- and Tetra-saccharides Related to the Fine Structures of Lichenan and Cereal P-o-Glucanes. Carbohydrate Res 147 265... 

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