[EN] METHOD OF PREPARING 1-CHLOROACETAMIDO-1,3,3,5,5-PENTAMETHYLCYCLOHEXANE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 1-CHLOROACÉTAMIDO-1,3,3,5,5-PENTAMÉTHYLCYCLOHEXANE
申请人:MERZ PHARMA GMBH & CO KGAA
公开号:WO2011000537A1
公开(公告)日:2011-01-06
Method of preparing 1-chloroacetamido-1,3,3,5,5-pentamethylcyclohexane, an intermediate in the synthesis of 1-amino-1,3,3,5,5-pentamethylcyclohexane (Neramexane) or a pharmaceutically acceptable salt thereof, comprising step (iii): (iii) reacting 1-hydroxy-1,3,3,5,5-pentamethylcyclohexane with chloroacetonitrile in the presence of an acid, wherein 1-hydroxy-1,3,3,5,5-pentamethylcyclohexane is employed in step (iii) as obtained in the reaction of a methylmagnesium halide with 3,3,5,5-tetramethylcyclohexanone without having been subjected to a purification step.
制备1-氯乙酰胺基-1,3,3,5,5-五甲基环己烷的方法,该方法是合成1-氨基-1,3,3,5,5-五甲基环己烷(Neramexane)或其药用可接受盐的中间体,包括步骤(iii):(iii)在酸的存在下,将1-羟基-1,3,3,5,5-五甲基环己烷与氯乙腈反应,其中1-羟基-1,3,3,5,5-五甲基环己烷在步骤(iii)中作为反应得到的,该反应是甲基镁卤化物与3,3,5,5-四甲基环己酮反应而得,而未经过纯化步骤。