Process for producing tricyclic ketone
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United States of America Patent
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Nov 29, 2011
Grant Date -
Jan 22, 2009
app pub date -
Jun 8, 2006
filing date -
Jun 9, 2005
priority date (Note) -
Expired
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Abstract
In order to efficiently supply CPT, which is a starting compound of irinotecan hydrochloride and a variety of camptothecin derivatives, by a practical total synthesis, the invention provides a means of efficiently preparing a tricyclic ketone that corresponds to a CDE ring moiety of a camptothecin (CPT) skeleton.
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