Fremgangsmåde til fremstilling af naphthalen-2-yl-pyrazol-3-on-mellemprodukter, som kan anvendes til syntese af sigma-receptorinhibitorer

摘要

The invention relates to a process for preparing naphthalen-2-yl-pyrazol-3-one intermediates, tautomers, and salts thereof, to novel intermediates, and to the use of the intermediates in the preparation of sigma receptor inhibitors.