[EN] PREPARATION OF A BENZOIC ACID DERIVATIVE AND ITS USE FOR THE PREPARATION OF SUVOREXANT<br/>[FR] PRÉPARATION D'UN DÉRIVÉ D'ACIDE BENZOÏQUE ET SON UTILISATION POUR LA PRÉPARATION DE SUVOREXANT
申请人:SANDOZ AG
公开号:WO2016020403A1
公开(公告)日:2016-02-11
The present invention relates to a process for the preparation of a compound of formula (1) wherein the process is based on the use of an organolithium reagent and wherein Ra, Rb, Rc and Rd are, independently of each other, selected from the group consisting of H, alkyl, aryl, cycloalkyl, heteroalkyl, heteroaryl, heterocycloalkyl, halogen, carbonyl, alkoxy, hydroxyl, -NR6R7, -SR and -NO2, wherein R6 and R7 are, independently of each other, selected from the group consisting of H, alkyl, aryl, cycloalkyl, heteroalkyl, heteroaryl and heterocycloalkyl, and wherein E is an electrophilic group. The present invention further relates as to a compound obtained or obtainable by said method and to a compound of formula (1) as such. Further, the present invention relates to use of the compound of formula (1) for the preparation of Suvorexant.
本发明涉及一种制备式(1)化合物的方法,该方法基于使用有机锂试剂,其中Ra、Rb、Rc和Rd分别独立地选自H、烷基、芳基、环烷基、杂原子烷基、杂原子芳基、杂原子环烷基、卤素、羰基、烷氧基、羟基、-NR6R7、-SR和-NO2的组成群,其中R6和R7分别独立地选自H、烷基、芳基、环烷基、杂原子烷基、杂原子芳基和杂原子环烷基的组成群,E是亲电性基团。本发明还涉及通过所述方法获得或可获得的化合物,以及式(1)化合物本身。此外,本发明涉及使用式(1)化合物制备Suvorexant。