[EN] PROCESS FOR PREPARATION OF MEDETOMIDINE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE MÉDÉTOMIDINE
申请人:TECH AB I
公开号:WO2011070069A1
公开(公告)日:2011-06-16
The present disclosure relates to a process for the preparation of medetomidine, 4-[1-(2,3-Dimethylphenyl)ethyl]- 1H-imidazoIe in an environmentally favourable and commercially feasible manner. Previous methods for the preparation of medetomidine use expensive 4-substituted imidazole derivatives as starting material. A practical way of synthesis is provided in which the imidazole ring is built up during a multi-step process starting from commercially affordable, 2,3-dimethylbenzoic. Mild reaction conditions are used throughout the process.
本公开涉及一种以环境友好和商业可行的方式制备美地托嗪(medetomidine),即4-[1-(2,3-二甲基苯基)乙基]-1H-咪唑的过程。以前制备美地托嗪的方法使用昂贵的4-取代咪唑衍生物作为起始物质。提供了一种实用的合成方法,其中咪唑环是在从商业可负担的2,3-二甲基苯甲酸开始的多步过程中构建的。整个过程中使用温和的反应条件。