Stable cystal of protected pseudouridine
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United States of America Patent
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Jun 28, 2011
Grant Date -
Aug 26, 2010
app pub date -
Jun 21, 2006
filing date -
Jun 24, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A stable and high-purity protected pseudouridine in crystal form is provided represented by the following structural formula:wherein M represents a trityl group or a derivative thereof, which is a useful material for producing an RNA oligomer or a similar substance. A method for producing the crystalline protected pseudouridine is also provided, which method includes crystallizing a protected pseudouridine from a solution containing the protected pseudouridine, by use of an ester solvent and/or an alcoholic solvent. The method, which does not need a silica gel column treatment, can be performed in a simple manner, does not impose a load on the environment, and realizes low-cost production of a target crystalline protected pseudouridine.
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