[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF BENDAMUSTINE HYDROCHLORIDE<br/>[FR] PROCÉDÉ AMÉLIORÉ DE PRÉPARATION D'HYDROCHLORURE DE BENDAMUSTINE
申请人:FRESENIUS KABI ONCOLOGY LTD
公开号:WO2013046223A1
公开(公告)日:2013-04-04
The present invention relates to an improved process for the synthesis of bendamustine, in particular, bendamustine hydrochloride of the formula (VI) and its intermediate 1 -Methyl-5-[bis(2-chloroethyl)amino]- 1H-benzimidazol-2-yl]lithium butanoate of formula(V), both having a purity of ≥99%, which is simple, convenient, economical, does not use hazardous chemicals and industrially viable.
本发明涉及一种改进的苯达莫司汀合成工艺,特别是苯达莫司汀盐酸盐的合成,其化学式为(VI),以及其中间体1-甲基-5-[双(2-氯乙基)氨基]-1H-苯并咪唑-2-基]锂丁酸盐,其化学式为(V),两者纯度均≥99%,该工艺简单、方便、经济,不使用危险化学品且具有工业可行性。