[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.