Process for the production of purified cytidinemonophosphate-sialic acid-polyalkylene oxide (CMP-SA-PEG) as modified nucleotide sugars via anion exchange chromatography
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United States of America Patent
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Nov 15, 2016
Grant Date -
Jul 8, 2010
app pub date -
Jun 12, 2008
filing date -
Jun 12, 2007
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Abstract
The current invention provides methods (e.g., large-scale processes) for the production of nucleotide sugars, which are modified with a polymeric modifying group, such as poly(alkylene oxide) moieties (e.g., poly(ethylene glycol) or poly(propylene glycol)) moieties. A typical process of the invention includes anion exchange chromatography followed by an ultrafiltration procedure, such as tangential flow filtration. The process of the invention provides modified nucleotide sugars in unexpectedly high purity and high overall yields.
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