[EN] PROCESS FOR PRODUCTION OF 2-CHLORO-4-NITROIMIDAZOLE DERIVATIVES<br/>[FR] PROCÉDÉ DE PRODUCTION DE DÉRIVÉS DE 2-CHLORO-4-NITROIMIDAZOLE
申请人:OTSUKA PHARMA CO LTD
公开号:WO2019146113A1
公开(公告)日:2019-08-01
An improved process for preparing 2-chloro-4-nitroimidazole derivatives which are useful intermediates in the preparation of an anti-tuberculosis drug is provided. The process may comprise the step of chlorinating nitroimidazoles with a chlorinating agent and an activating agent to give 2-chloro-4-nitroimidazole derivatives.
提供一种改进的制备2-氯-4-硝基咪唑衍生物的工艺,这些衍生物是制备抗结核药物的有用中间体。该工艺可以包括使用氯化剂和活化剂氯化硝基咪唑,从而得到2-氯-4-硝基咪唑衍生物的步骤。