[EN] A PROCESS FOR THE PREPARATION OF QUETIAPINE AND INTERMEDIATES THEREFOR<br/>[FR] PROCÉDÉ DE PRÉPARATION DE QUÉTIAPINE ET DES SES INTERMÉDIAIRES
申请人:EGYT GYOGYSZERVEGYESZETI GYAR
公开号:WO2001055125A1
公开(公告)日:2001-08-02
The invention refers to a novel process for the preparation of 11-[4-/2-(2-hydroxyethoxy)ethyl/-1-piperazinyl]dibenzo[b,f]-1,4-thiazepine of the formula (I) known as quetiapine. According to the invention, a haloethylpiperazinylthiazepine derivative of the formula (VIII), wherein Hal stands for a halo atom, is reacted with ethylene glycol.