Process for the Preparation of Irinotecan Hydrochloride Trihydrate
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United States of America Patent
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Issued Date -
Jul 31, 2008
app pub date -
Aug 9, 2004
filing date -
Aug 9, 2004
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Abandoned
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Abstract
The invention relates to an improved process for the preparation of Irinotecan hydrochloride trihydrate of formula (4) of enhanced yield, purity by contacting 1-chlorocarbonyl-4-piperidinopiperidine hydrochloride with 7-ethyl-10-hydroxy-camptothecin [IRT-3 (synthetic)] to obtain crude Irinotecan which is subsequently purified by solvent treatment, obtaining purified irinotecan which is converted into irinotecan hydrochloride trihydrate and the invention also relates to a report of the compound 1-chlorocorbonyl-4-piperidinopiperidine hydrochloride of formula (1) and its process for preparation.
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