[EN] PROCESS FOR THE PREPARATION OF (1S,2R)-MILNACIPRAN<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE (1S,2R)-MILNACIPRAN
申请人:SINT QUIMICA SA
公开号:WO2016071303A1
公开(公告)日:2016-05-12
The invention relates to a process for the preparation of Levomilnacipran, a compound useful in the treatment of depression, comprising the following steps: a) directly converting the enantiomerically enriched form of alcohol (D) into the enantiomerically enriched form of the phthalimido derivative (C) by treatment with phthalimide in the presence of a trialkyl or triarylphosphine and of a dialkyl azodicarboxylate, formula (I) wherein the amount of phthalimide is comprised between 1 and 1.3 equivalents with respect to the molar amount of alcohol (D) used, and the amounts of both the phosphine and the azodicarboxylate are comprised, independently from each other, between 1 and 1.5 equivalents with respect to the molar amount of alcohol (D) used; b) deblocking the enantiomerically enriched form of the phthalimido derivative (C) to obtain Levomilnacipran, formula (II).
该发明涉及一种用于制备左旋米氮平的过程,左旋米氮平是一种用于治疗抑郁症的化合物,包括以下步骤:a)将对映选择性富集的醇(D)直接转化为对映选择性富集的邻苯二甲酰亚胺衍生物(C),方法是在三烷基或三芳基膦和二烷基双氮基二羧酸酯的存在下,用邻苯二甲酰亚胺处理,式(I)中邻苯二甲酰亚胺的量在摩尔量方面相对于使用的醇(D)之间为1至1.3当量之间,磷和双氧基二羧酸酯的量分别独立于彼此,相对于使用的醇(D)的摩尔量在1至1.5当量之间;b)去保护对映选择性富集的邻苯二甲酰亚胺衍生物(C)以获得左旋米氮平,式(II)。