[EN] PROCESS FOR THE PREPARATION OF DROXIDOPA<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DROXIDOPA
申请人:PIRAMAL ENTPR LTD
公开号:WO2016147133A1
公开(公告)日:2016-09-22
The present invention provides a novel process for the preparation of droxidopa, a synthetic amino acid precursor of norepinephrine. The process is a stereoselective process for the preparation of droxidopa using asymmetric induction and thus avoids synthetic process involving chiral resolution. The present invention also provides novel intermediates of formula III, formula V and formula VI.
本发明提供了一种新的方法,用于制备多巴酚羧酸(droxidopa),一种去甲肾上腺素的合成氨基酸前体。该方法是一种立体选择性方法,用于使用不对称诱导制备多巴酚羧酸,因此避免了涉及手性分离的合成过程。本发明还提供了三个新的中间体,分别为公式III、公式V和公式VI。