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Polymer-supported solution synthesis of oligosaccharides

  • US 5,278,303 A
  • Filed: 06/12/1992
  • Issued: 01/11/1994
  • Est. Priority Date: 06/12/1992
  • Status: Expired due to Fees
First Claim
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1. A process for the preparation of oligosaccharides which comprises:

  • a) reacting a first reactant saccharide having at least one monosaccharide unit with a second reactant which is a polyethylene glycol monomethyl ether, the two reactants being linked through an ester linkage of dicarboxylic acid bound to a carbohydrate carboxyl;

    b) subjecting the saccharide-polyethylene glycol monomethyl ether reaction product to a glycosylation reaction through a plurality of additions of a glycosylation agent having an activated anomeric center, while monitoring the reaction for completion;

    c) isolating the polyethylene glycol-oligosaccharide as a solid;

    d) purifying the solid; and

    e) releasing the oligosaccharide from the polyethylene glycol.

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