US Patent 7767813 Preparation method
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Patent abstract
The present invention is directed to a novel method for the preparation of high purity irinotecan. This can be achieved by eliminating the excess of the other reagent, bipiperidinyl-1′-carbonyl chloride after it has reacted with 7-ethyl-10-hydroxy camptothecin and crystallizing the final product from a suitable solvent.
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Patent Inventor Names
Hannele Nikander0
Ilpo Laitinen0
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Official Website
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US Patent 07767813 Preparation method US Patent 7767813 Preparation method
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Patent Number
077678130
Patent Number
77678130
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Patent Jurisdiction
Patent Number
077678130
Date of Patent
August 3, 2010
0Patent Application Number
118835810
Date Filed
February 6, 2006
0Official Website
Patent Primary Examiner
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US Patent 07767813 Preparation method
Infobox
Is a
Patent jurisdiction
Patent number
07767813
Date of patent
August 3, 2010
Patent application number
11883581
Date Filed
February 6, 2006
Patent primary examiner
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