-modified nucleosides
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United States of America Patent
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Sep 21, 2010
Grant Date -
Jun 22, 2006
app pub date -
Jan 15, 2004
filing date -
Jan 15, 2003
priority date (Note) -
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Abstract
An improved method of preparing a sugar modified nucleoside analog includes a protocol in which a hydroxy group of a sugar is selectively deprotected and oxidized prior to nucleophilic modification of the corresponding carbonyl group. The modified sugar is then coupled to a heterocyclic base that is modified with a dual nucleophilic reagent in a further step that provides N6-modified adenosine analogs with high stereoselectivity.
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