AN IMPROVED PROCESS FOR THE PREPARATION OF IRINOTECAN HYDROCHLORIDE TRIHYDRATE

摘要

: 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 l-chlorocorbonyl-4-iperidinopiperidine hydrochloride of formula (1) and its process for preparation.