[EN] PROCESS FOR PREPARING XPO1 INHIBITORS AND INTERMEDIATES FOR USE IN THE PREPARATION OF XP01 INHIBITORS<br/>[FR] PROCÉDÉ DE PRÉPARATION D'INHIBITEURS DE XPO1 ET INTERMÉDIAIRES DESTINÉS À ÊTRE UTILISÉS DANS LA PRÉPARATION D'INHIBITEURS DE XPO1
申请人:KARYOPHARM THERAPEUTICS INC
公开号:WO2020223678A1
公开(公告)日:2020-11-05
The present invention provides an improved process for preparation of the (Z)-3-(3-(3,5-bis(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)acrylic acid (referred to as compound of the structural formula (III)), which is a useful key intermediate for the synthesis of Selinexor ((Z)-3-(3-(3,5-Bis(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)-N'-(pyrazin-2-yl)acrylohydrazide). The process comprises reaction of the compound of the structural formula (I) (as described herein) with the compound of the structural formula (II) (as described herein) in the presence of a catalyst, an organic base and an ether-containing solvent. The subsequent hydrolysis of the formed compound of the structural formula (IIIa) (as described herein) is performed without isolation of the compound of the structural formula (IIIa), providing compound of the structural formula (III) in high yield and stereoselectivity.
本发明提供了一种改进的制备(Z)-3-(3-(3,5-双三氟甲基苯基)-1H-1,2,4-三唑-1-基)丙烯酸(简称为结构式(III)的化合物)的方法,该化合物是合成Selinexor((Z)-3-(3-(3,5-双三氟甲基苯基)-1H-1,2,4-三唑-1-基)-N'-(吡嗪-2-基)丙烯酰肼)的有用关键中间体。该方法包括在催化剂、有机碱和含醚溶剂的存在下,将结构式(I)(如本文所述)的化合物与结构式(II)(如本文所述)的化合物反应。在不分离结构式(IIIa)(如本文所述)的化合物的情况下,对所形成的化合物进行后续的水解反应,从而高产高立体选择性地得到结构式(III)的化合物。