[EN] PROCESS FOR THE PREPARATION OF CERITINIB USING "IN SITU" PREPARED 5-METHYL-2-(1 -METHYLETHOXY)-4-(4-PIPERIDINYL)-BENZENAMINE MONOHYDROCHLORIDE (1 :1 ) AS AN INTERMEDIATE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE CÉRITINIB À L'AIDE DE MONOCHLORHYDRATE DE 5-MÉTHYL-2-(1 -MÉTHYLÉTHOXY)-4-(4-PIPÉRIDINYL)-BENZENAMINE (1/1 ) PRÉPARÉ IN SITU EN TANT QU'INTERMÉDIAIRE
申请人:ZENTIVA KS
公开号:WO2017041771A1
公开(公告)日:2017-03-16
The object of the invention is a preparation method of Ceritinib of formula (I) and its salts wherein 2-isopropylthioaniline is used in the first step. Even under mild conditions, it provides an intermediate, which is further oxidized to a sulfone in a high yield. The sulfone is subsequently transferred by means of a one-step reaction to Ceritinib of formula I in the form of a salt either through a reaction with the intermediate of formula (V) catalyzed by an acid, or in neutral conditions with its unprotected analog of formula (IX), which is in the form of the in-situ generated monohydrochloride. The product is easily isolated from the reaction as crystalline Ceritinib of formula (I) in the form of the salt with hydrochloric acid.
该发明的目标是一种Ceritinib(化学式(I))及其盐的制备方法,其中在第一步中使用2-异丙硫氨基苯。即使在温和条件下,它也能够提供一种中间体,该中间体进一步氧化为磺酮,收率高。然后,通过一步反应将磺酮转移至Ceritinib(化学式I)的盐形式,通过与公式(V)的中间体在酸催化下反应或在中性条件下与其未保护的公式(IX)的类似物反应,后者以原位生成的单氢氯化物的形式存在。该产品易于从反应中分离出来,以盐酸的结晶Ceritinib(化学式I)的形式存在。