Process for producing tricyclic ketone
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United States of America Patent
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Jun 18, 2013
Grant Date -
Feb 16, 2012
app pub date -
Oct 21, 2011
filing date -
Jun 9, 2005
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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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