type 8 capsular polysaccharides
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United States of America Patent
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Dec 12, 2017
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N/A
app pub date -
Feb 2, 2015
filing date -
Sep 30, 2009
priority date (Note) -
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Abstract
The invention provides a process for preparing a conjugate of a S. aureus type 8 capsular polysaccharide and a carrier molecule, comprising the steps of: (a) depolymerising the capsular polysaccharide, to give a polysaccharide fragment; (b) oxidising the fragment in order to introduce an aldehyde group into at least one saccharide residue in the fragment, to give an oxidised saccharide residue; and (c) coupling the oxidised saccharide residue to a carrier molecule via the aldehyde group, thereby giving the conjugate. The coupling in step (c) may be direct, or may be via a linker molecule. The invention also provides a conjugate obtained or obtainable by this process.
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