[EN] PROCESSES AND INTERMEDIATES FOR PREPARING A MACROCYCLIC PROTEASE INHIBITOR OF HCV<br/>[FR] PROCÉDÉS ET INTERMÉDIAIRES POUR LA PRÉPARATION D'UN INHIBITEUR DE PROTÉASE MACROCYCLIQUE DU VHC
申请人:JANSSEN PHARMACEUTICALS INC
公开号:WO2013041655A1
公开(公告)日:2013-03-28
Disclosed is a process for the preparation of a cinchonidine salt of formula (IV) via an aqueous solution of a racemic 4-hydroxy-1,2-cyclopentanedicarboxylic acid, which is subjected to cyclization without removing water, by the addition of a water- miscible organic solvent to the aqueous solution and, again without removing water, adding cinchonidine to the aqueous-organic solvent solution so as to obtain the cinchonidine salt of the lactone acid. The cinchonidine salt is allowd to crystallize so as to obtain the enantiomerically purified crystalline lactone acid cinchonidine salt (IV). The enantiomerically pure salt is an intermediate in the synthesis of HCV inhibitor compound of formula (I).
揭示了一种制备奎宁啉盐(IV式)的过程,通过将外消旋4-羟基-1,2-环戊二羧酸的水溶液进行环化,无需去除水,向水溶液中加入水亲和性有机溶剂,再次无需去除水,将奎宁啉加入水-有机溶剂溶液中,以获得内酯酸奎宁啉盐。奎宁啉盐被允许结晶,以获得对映纯化的结晶内酯酸奎宁啉盐(IV式)。对映纯盐是合成HCV抑制剂化合物(I式)的中间体。